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982 lines
32 KiB
C
982 lines
32 KiB
C
//*****************************************************************************
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//
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// rit128x96x4.c - Driver for the RIT 128x96x4 graphical OLED display.
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//
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// Copyright (c) 2007 Luminary Micro, Inc. All rights reserved.
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//
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// Software License Agreement
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//
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// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
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// exclusively on LMI's microcontroller products.
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//
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// The software is owned by LMI and/or its suppliers, and is protected under
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// applicable copyright laws. All rights are reserved. Any use in violation
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// of the foregoing restrictions may subject the user to criminal sanctions
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// under applicable laws, as well as to civil liability for the breach of the
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// terms and conditions of this license.
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//
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// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
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// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
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// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
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// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
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//
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// This is part of revision 1504-conf of the Stellaris Peripheral Driver Library.
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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//! \addtogroup ek_lm3sLM3S8962_api
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//! @{
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//
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//*****************************************************************************
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#include "hw_ssi.h"
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#include "hw_memmap.h"
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#include "hw_sysctl.h"
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#include "hw_types.h"
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#include "debug.h"
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#include "gpio.h"
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#include "ssi.h"
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#include "sysctl.h"
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#include "rit128x96x4.h"
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//*****************************************************************************
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//
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// Macros that define the peripheral, port, and pin used for the OLEDDC
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// panel control signal.
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//
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//*****************************************************************************
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unsigned long ulGPIOId = 0, ulGPIOBase = 0, ulOLEDDC_PIN = 0, ulOLEDEN_PIN = 0;
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#define LM3S8962_SYSCTL_PERIPH_GPIO_OLEDDC SYSCTL_PERIPH_GPIOA
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#define LM3S8962_GPIO_OLEDDC_BASE GPIO_PORTA_BASE
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#define LM3S8962_GPIO_OLEDDC_PIN GPIO_PIN_6
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#define LM3S8962_GPIO_OLEDEN_PIN GPIO_PIN_7
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#define LM3S1968_SYSCTL_PERIPH_GPIO_OLEDDC SYSCTL_PERIPH_GPIOH
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#define LM3S1968_GPIO_OLEDDC_BASE GPIO_PORTH_BASE
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#define LM3S1968_GPIO_OLEDDC_PIN GPIO_PIN_2
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#define LM3S1968_GPIO_OLEDEN_PIN GPIO_PIN_3
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//*****************************************************************************
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//
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// Flag to indicate if SSI port is enabled for display usage.
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//
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//*****************************************************************************
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static volatile tBoolean g_bSSIEnabled = false;
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//*****************************************************************************
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//
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// Buffer for storing sequences of command and data for the display.
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//
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//*****************************************************************************
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static unsigned char g_pucBuffer[8];
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//*****************************************************************************
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//
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// Define the SSD1329 128x96x4 Remap Setting(s). This will be used in
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// several places in the code to switch between vertical and horizontal
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// address incrementing. Note that the controller support 128 rows while
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// the RIT display only uses 96.
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//
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// The Remap Command (0xA0) takes one 8-bit parameter. The parameter is
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// defined as follows.
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//
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// Bit 7: Reserved
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// Bit 6: Disable(0)/Enable(1) COM Split Odd Even
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// When enabled, the COM signals are split Odd on one side, even on
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// the other. Otherwise, they are split 0-63 on one side, 64-127 on
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// the other.
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// Bit 5: Reserved
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// Bit 4: Disable(0)/Enable(1) COM Remap
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// When Enabled, ROW 0-127 map to COM 127-0 (i.e. reverse row order)
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// Bit 3: Reserved
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// Bit 2: Horizontal(0)/Vertical(1) Address Increment
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// When set, data RAM address will increment along the column rather
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// than along the row.
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// Bit 1: Disable(0)/Enable(1) Nibble Remap
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// When enabled, the upper and lower nibbles in the DATA bus for access
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// to the data RAM are swapped.
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// Bit 0: Disable(0)/Enable(1) Column Address Remap
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// When enabled, DATA RAM columns 0-63 are remapped to Segment Columns
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// 127-0.
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//
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//*****************************************************************************
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#define RIT_INIT_REMAP 0x52 // app note says 0x51
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#define RIT_INIT_OFFSET 0x00
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static const unsigned char g_pucRIT128x96x4VerticalInc[] = { 0xA0, 0x56 };
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static const unsigned char g_pucRIT128x96x4HorizontalInc[] = { 0xA0, 0x52 };
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//*****************************************************************************
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//
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// A 5x7 font (in a 6x8 cell, where the sixth column is omitted from this
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// table) for displaying text on the OLED display. The data is organized as
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// bytes from the left column to the right column, with each byte containing
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// the top row in the LSB and the bottom row in the MSB.
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//
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// Note: This is the same font data that is used in the EK-LM3S811
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// osram96x16x1 driver. The single bit-per-pixel is expaned in the StringDraw
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// function to the appropriate four bit-per-pixel gray scale format.
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//
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//*****************************************************************************
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static const unsigned char g_pucFont[96][5] =
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{
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{ 0x00, 0x00, 0x00, 0x00, 0x00 }, // " "
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{ 0x00, 0x00, 0x4f, 0x00, 0x00 }, // !
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{ 0x00, 0x07, 0x00, 0x07, 0x00 }, // "
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{ 0x14, 0x7f, 0x14, 0x7f, 0x14 }, // #
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{ 0x24, 0x2a, 0x7f, 0x2a, 0x12 }, // $
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{ 0x23, 0x13, 0x08, 0x64, 0x62 }, // %
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{ 0x36, 0x49, 0x55, 0x22, 0x50 }, // &
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{ 0x00, 0x05, 0x03, 0x00, 0x00 }, // '
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{ 0x00, 0x1c, 0x22, 0x41, 0x00 }, // (
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{ 0x00, 0x41, 0x22, 0x1c, 0x00 }, // )
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{ 0x14, 0x08, 0x3e, 0x08, 0x14 }, // *
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{ 0x08, 0x08, 0x3e, 0x08, 0x08 }, // +
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{ 0x00, 0x50, 0x30, 0x00, 0x00 }, // ,
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{ 0x08, 0x08, 0x08, 0x08, 0x08 }, // -
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{ 0x00, 0x60, 0x60, 0x00, 0x00 }, // .
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{ 0x20, 0x10, 0x08, 0x04, 0x02 }, // /
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{ 0x3e, 0x51, 0x49, 0x45, 0x3e }, // 0
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{ 0x00, 0x42, 0x7f, 0x40, 0x00 }, // 1
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{ 0x42, 0x61, 0x51, 0x49, 0x46 }, // 2
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{ 0x21, 0x41, 0x45, 0x4b, 0x31 }, // 3
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{ 0x18, 0x14, 0x12, 0x7f, 0x10 }, // 4
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{ 0x27, 0x45, 0x45, 0x45, 0x39 }, // 5
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{ 0x3c, 0x4a, 0x49, 0x49, 0x30 }, // 6
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{ 0x01, 0x71, 0x09, 0x05, 0x03 }, // 7
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{ 0x36, 0x49, 0x49, 0x49, 0x36 }, // 8
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{ 0x06, 0x49, 0x49, 0x29, 0x1e }, // 9
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{ 0x00, 0x36, 0x36, 0x00, 0x00 }, // :
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{ 0x00, 0x56, 0x36, 0x00, 0x00 }, // ;
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{ 0x08, 0x14, 0x22, 0x41, 0x00 }, // <
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{ 0x14, 0x14, 0x14, 0x14, 0x14 }, // =
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{ 0x00, 0x41, 0x22, 0x14, 0x08 }, // >
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{ 0x02, 0x01, 0x51, 0x09, 0x06 }, // ?
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{ 0x32, 0x49, 0x79, 0x41, 0x3e }, // @
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{ 0x7e, 0x11, 0x11, 0x11, 0x7e }, // A
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{ 0x7f, 0x49, 0x49, 0x49, 0x36 }, // B
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{ 0x3e, 0x41, 0x41, 0x41, 0x22 }, // C
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{ 0x7f, 0x41, 0x41, 0x22, 0x1c }, // D
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{ 0x7f, 0x49, 0x49, 0x49, 0x41 }, // E
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{ 0x7f, 0x09, 0x09, 0x09, 0x01 }, // F
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{ 0x3e, 0x41, 0x49, 0x49, 0x7a }, // G
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{ 0x7f, 0x08, 0x08, 0x08, 0x7f }, // H
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{ 0x00, 0x41, 0x7f, 0x41, 0x00 }, // I
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{ 0x20, 0x40, 0x41, 0x3f, 0x01 }, // J
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{ 0x7f, 0x08, 0x14, 0x22, 0x41 }, // K
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{ 0x7f, 0x40, 0x40, 0x40, 0x40 }, // L
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{ 0x7f, 0x02, 0x0c, 0x02, 0x7f }, // M
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{ 0x7f, 0x04, 0x08, 0x10, 0x7f }, // N
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{ 0x3e, 0x41, 0x41, 0x41, 0x3e }, // O
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{ 0x7f, 0x09, 0x09, 0x09, 0x06 }, // P
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{ 0x3e, 0x41, 0x51, 0x21, 0x5e }, // Q
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{ 0x7f, 0x09, 0x19, 0x29, 0x46 }, // R
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{ 0x46, 0x49, 0x49, 0x49, 0x31 }, // S
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{ 0x01, 0x01, 0x7f, 0x01, 0x01 }, // T
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{ 0x3f, 0x40, 0x40, 0x40, 0x3f }, // U
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{ 0x1f, 0x20, 0x40, 0x20, 0x1f }, // V
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{ 0x3f, 0x40, 0x38, 0x40, 0x3f }, // W
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{ 0x63, 0x14, 0x08, 0x14, 0x63 }, // X
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{ 0x07, 0x08, 0x70, 0x08, 0x07 }, // Y
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{ 0x61, 0x51, 0x49, 0x45, 0x43 }, // Z
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{ 0x00, 0x7f, 0x41, 0x41, 0x00 }, // [
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{ 0x02, 0x04, 0x08, 0x10, 0x20 }, // "\"
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{ 0x00, 0x41, 0x41, 0x7f, 0x00 }, // ]
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{ 0x04, 0x02, 0x01, 0x02, 0x04 }, // ^
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{ 0x40, 0x40, 0x40, 0x40, 0x40 }, // _
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{ 0x00, 0x01, 0x02, 0x04, 0x00 }, // `
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{ 0x20, 0x54, 0x54, 0x54, 0x78 }, // a
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{ 0x7f, 0x48, 0x44, 0x44, 0x38 }, // b
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{ 0x38, 0x44, 0x44, 0x44, 0x20 }, // c
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{ 0x38, 0x44, 0x44, 0x48, 0x7f }, // d
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{ 0x38, 0x54, 0x54, 0x54, 0x18 }, // e
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{ 0x08, 0x7e, 0x09, 0x01, 0x02 }, // f
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{ 0x0c, 0x52, 0x52, 0x52, 0x3e }, // g
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{ 0x7f, 0x08, 0x04, 0x04, 0x78 }, // h
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{ 0x00, 0x44, 0x7d, 0x40, 0x00 }, // i
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{ 0x20, 0x40, 0x44, 0x3d, 0x00 }, // j
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{ 0x7f, 0x10, 0x28, 0x44, 0x00 }, // k
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{ 0x00, 0x41, 0x7f, 0x40, 0x00 }, // l
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{ 0x7c, 0x04, 0x18, 0x04, 0x78 }, // m
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{ 0x7c, 0x08, 0x04, 0x04, 0x78 }, // n
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{ 0x38, 0x44, 0x44, 0x44, 0x38 }, // o
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{ 0x7c, 0x14, 0x14, 0x14, 0x08 }, // p
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{ 0x08, 0x14, 0x14, 0x18, 0x7c }, // q
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{ 0x7c, 0x08, 0x04, 0x04, 0x08 }, // r
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{ 0x48, 0x54, 0x54, 0x54, 0x20 }, // s
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{ 0x04, 0x3f, 0x44, 0x40, 0x20 }, // t
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{ 0x3c, 0x40, 0x40, 0x20, 0x7c }, // u
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{ 0x1c, 0x20, 0x40, 0x20, 0x1c }, // v
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{ 0x3c, 0x40, 0x30, 0x40, 0x3c }, // w
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{ 0x44, 0x28, 0x10, 0x28, 0x44 }, // x
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{ 0x0c, 0x50, 0x50, 0x50, 0x3c }, // y
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{ 0x44, 0x64, 0x54, 0x4c, 0x44 }, // z
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{ 0x00, 0x08, 0x36, 0x41, 0x00 }, // {
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{ 0x00, 0x00, 0x7f, 0x00, 0x00 }, // |
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{ 0x00, 0x41, 0x36, 0x08, 0x00 }, // }
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{ 0x02, 0x01, 0x02, 0x04, 0x02 }, // ~
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{ 0x02, 0x01, 0x02, 0x04, 0x02 }, // ~
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};
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//*****************************************************************************
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//
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// The sequence of commands used to initialize the SSD1329 controller. Each
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// command is described as follows: there is a byte specifying the number of
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// bytes in the command sequence, followed by that many bytes of command data.
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// Note: This initialization sequence is derived from RIT App Note for
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// the P14201. Values used are from the RIT app note, except where noted.
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//
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//*****************************************************************************
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static const unsigned char g_pucRIT128x96x4Init[] =
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{
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//
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// Unlock commands
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//
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3, 0xFD, 0x12, 0xe3,
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//
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// Display off
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//
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2, 0xAE, 0xe3,
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//
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// Icon off
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//
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3, 0x94, 0, 0xe3,
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//
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// Multiplex ratio
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//
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3, 0xA8, 95, 0xe3,
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//
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// Contrast
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//
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3, 0x81, 0xb7, 0xe3,
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//
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// Pre-charge current
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//
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3, 0x82, 0x3f, 0xe3,
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//
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// Display Re-map
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//
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3, 0xA0, RIT_INIT_REMAP, 0xe3,
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//
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// Display Start Line
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//
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3, 0xA1, 0, 0xe3,
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//
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// Display Offset
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//
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3, 0xA2, RIT_INIT_OFFSET, 0xe3,
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//
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// Display Mode Normal
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//
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2, 0xA4, 0xe3,
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//
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// Phase Length
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//
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3, 0xB1, 0x11, 0xe3,
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//
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// Frame frequency
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//
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3, 0xB2, 0x23, 0xe3,
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//
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// Front Clock Divider
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//
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3, 0xB3, 0xe2, 0xe3,
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//
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// Set gray scale table. App note uses default command:
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// 2, 0xB7, 0xe3
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// This gray scale attempts some gamma correction to reduce the
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// the brightness of the low levels.
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//
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17, 0xB8, 1, 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 19, 22, 26, 30, 0xe3,
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//
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// Second pre-charge period. App note uses value 0x04.
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//
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3, 0xBB, 0x01, 0xe3,
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//
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// Pre-charge voltage
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//
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3, 0xBC, 0x3f, 0xe3,
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//
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// Display ON
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//
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2, 0xAF, 0xe3,
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};
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//*****************************************************************************
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//
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//! \internal
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//!
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//! Write a sequence of command bytes to the SSD1329 controller.
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//!
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//! The data is written in a polled fashion; this function will not return
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//! until the entire byte sequence has been written to the controller.
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//!
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//! \return None.
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//
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//*****************************************************************************
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static void
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RITWriteCommand(const unsigned char *pucBuffer, unsigned long ulCount)
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{
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unsigned long ulTemp;
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//
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// Return if SSI port is not enabled for RIT display.
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//
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if(!g_bSSIEnabled)
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{
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return;
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}
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//
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// Clear the command/control bit to enable command mode.
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//
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GPIOPinWrite(ulGPIOBase, ulOLEDDC_PIN, 0);
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//
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// Loop while there are more bytes left to be transferred.
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//
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while(ulCount != 0)
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{
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//
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// Write the next byte to the controller.
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//
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SSIDataPut(SSI0_BASE, *pucBuffer++);
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//
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// Dummy read to drain the fifo and time the GPIO signal.
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//
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SSIDataGet(SSI0_BASE, &ulTemp);
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//
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// Decrement the BYTE counter.
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//
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ulCount--;
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}
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}
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//*****************************************************************************
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//
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//! \internal
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//!
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//! Write a sequence of data bytes to the SSD1329 controller.
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//!
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//! The data is written in a polled fashion; this function will not return
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//! until the entire byte sequence has been written to the controller.
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//!
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//! \return None.
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//
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//*****************************************************************************
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static void
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RITWriteData(const unsigned char *pucBuffer, unsigned long ulCount)
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{
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unsigned long ulTemp;
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//
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// Return if SSI port is not enabled for RIT display.
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//
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if(!g_bSSIEnabled)
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{
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return;
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}
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//
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// Set the command/control bit to enable data mode.
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//
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GPIOPinWrite(ulGPIOBase, ulOLEDDC_PIN, ulOLEDDC_PIN);
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//
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// Loop while there are more bytes left to be transferred.
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//
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while(ulCount != 0)
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{
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//
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// Write the next byte to the controller.
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//
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SSIDataPut(SSI0_BASE, *pucBuffer++);
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//
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// Dummy read to drain the fifo and time the GPIO signal.
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//
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SSIDataGet(SSI0_BASE, &ulTemp);
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//
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// Decrement the BYTE counter.
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//
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ulCount--;
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}
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}
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//*****************************************************************************
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//
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//! Clears the OLED display.
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//!
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//! This function will clear the display RAM. All pixels in the display will
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//! be turned off.
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//!
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//! This function is contained in <tt>rit128x96x4.c</tt>, with
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//! <tt>rit128x96x4.h</tt> containing the API definition for use by
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//! applications.
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//!
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//! \return None.
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//
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//*****************************************************************************
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void
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RIT128x96x4Clear(void)
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|
{
|
|
static const unsigned char pucCommand1[] = { 0x15, 0, 63 };
|
|
static const unsigned char pucCommand2[] = { 0x75, 0, 127 };
|
|
unsigned long ulRow, ulColumn;
|
|
|
|
//
|
|
// Clear out the buffer used for sending bytes to the display.
|
|
*(unsigned long *)&g_pucBuffer[0] = 0;
|
|
*(unsigned long *)&g_pucBuffer[4] = 0;
|
|
|
|
//
|
|
// Set the window to fill the entire display.
|
|
//
|
|
RITWriteCommand(pucCommand1, sizeof(pucCommand1));
|
|
RITWriteCommand(pucCommand2, sizeof(pucCommand2));
|
|
RITWriteCommand(g_pucRIT128x96x4HorizontalInc,
|
|
sizeof(g_pucRIT128x96x4HorizontalInc));
|
|
|
|
//
|
|
// Loop through the rows
|
|
//
|
|
for(ulRow = 0; ulRow < 96; ulRow++)
|
|
{
|
|
//
|
|
// Loop through the columns. Each byte is two pixels,
|
|
// and the buffer hold 8 bytes, so 16 pixels are cleared
|
|
// at a time.
|
|
//
|
|
for(ulColumn = 0; ulColumn < 128; ulColumn += 8 * 2)
|
|
{
|
|
//
|
|
// Write 8 clearing bytes to the display, which will
|
|
// clear 16 pixels across.
|
|
//
|
|
RITWriteData(g_pucBuffer, sizeof(g_pucBuffer));
|
|
}
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Displays a string on the OLED display.
|
|
//!
|
|
//! \param pcStr is a pointer to the string to display.
|
|
//! \param ulX is the horizontal position to display the string, specified in
|
|
//! columns from the left edge of the display.
|
|
//! \param ulY is the vertical position to display the string, specified in
|
|
//! rows from the top edge of the display.
|
|
//! \param ucLevel is the 4-bit grey scale value to be used for displayed text.
|
|
//!
|
|
//! This function will draw a string on the display. Only the ASCII characters
|
|
//! between 32 (space) and 126 (tilde) are supported; other characters will
|
|
//! result in random data being draw on the display (based on whatever appears
|
|
//! before/after the font in memory). The font is mono-spaced, so characters
|
|
//! such as "i" and "l" have more white space around them than characters such
|
|
//! as "m" or "w".
|
|
//!
|
|
//! If the drawing of the string reaches the right edge of the display, no more
|
|
//! characters will be drawn. Therefore, special care is not required to avoid
|
|
//! supplying a string that is "too long" to display.
|
|
//!
|
|
//! This function is contained in <tt>rit128x96x4.c</tt>, with
|
|
//! <tt>rit128x96x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \note Because the OLED display packs 2 pixels of data in a single byte, the
|
|
//! parameter \e ulX must be an even column number (e.g. 0, 2, 4, etc).
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
RIT128x96x4StringDraw(const char *pcStr, unsigned long ulX,
|
|
unsigned long ulY, unsigned char ucLevel)
|
|
{
|
|
unsigned long ulIdx1, ulIdx2;
|
|
unsigned char ucTemp;
|
|
|
|
//
|
|
// Check the arguments.
|
|
//
|
|
ASSERT(ulX < 128);
|
|
ASSERT((ulX & 1) == 0);
|
|
ASSERT(ulY < 96);
|
|
ASSERT(ucLevel < 16);
|
|
|
|
//
|
|
// Setup a window starting at the specified column and row, ending
|
|
// at the right edge of the display and 8 rows down (single character row).
|
|
//
|
|
g_pucBuffer[0] = 0x15;
|
|
g_pucBuffer[1] = ulX / 2;
|
|
g_pucBuffer[2] = 63;
|
|
RITWriteCommand(g_pucBuffer, 3);
|
|
g_pucBuffer[0] = 0x75;
|
|
g_pucBuffer[1] = ulY;
|
|
g_pucBuffer[2] = ulY + 7;
|
|
RITWriteCommand(g_pucBuffer, 3);
|
|
RITWriteCommand(g_pucRIT128x96x4VerticalInc,
|
|
sizeof(g_pucRIT128x96x4VerticalInc));
|
|
|
|
//
|
|
// Loop while there are more characters in the string.
|
|
//
|
|
while(*pcStr != 0)
|
|
{
|
|
//
|
|
// Get a working copy of the current character and convert to an
|
|
// index into the character bit-map array.
|
|
//
|
|
ucTemp = *pcStr;
|
|
ucTemp &= 0x7F;
|
|
if(ucTemp < ' ')
|
|
{
|
|
ucTemp = ' ';
|
|
}
|
|
else
|
|
{
|
|
ucTemp -= ' ';
|
|
}
|
|
|
|
//
|
|
// Build and display the character buffer.
|
|
//
|
|
for(ulIdx1 = 0; ulIdx1 < 3; ulIdx1++)
|
|
{
|
|
//
|
|
// Convert two columns of 1-bit font data into a single data
|
|
// byte column of 4-bit font data.
|
|
//
|
|
for(ulIdx2 = 0; ulIdx2 < 8; ulIdx2++)
|
|
{
|
|
g_pucBuffer[ulIdx2] = 0;
|
|
if(g_pucFont[ucTemp][ulIdx1*2] & (1 << ulIdx2))
|
|
{
|
|
g_pucBuffer[ulIdx2] = ((ucLevel << 4) & 0xf0);
|
|
}
|
|
if((ulIdx1 < 2) &&
|
|
(g_pucFont[ucTemp][ulIdx1*2+1] & (1 << ulIdx2)))
|
|
{
|
|
g_pucBuffer[ulIdx2] |= ((ucLevel << 0) & 0x0f);
|
|
}
|
|
}
|
|
|
|
//
|
|
// If there is room, dump the single data byte column to the
|
|
// display. Otherwise, bail out.
|
|
//
|
|
if(ulX < 126)
|
|
{
|
|
RITWriteData(g_pucBuffer, 8);
|
|
ulX += 2;
|
|
}
|
|
else
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Advance to the next character.
|
|
//
|
|
pcStr++;
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Displays an image on the OLED display.
|
|
//!
|
|
//! \param pucImage is a pointer to the image data.
|
|
//! \param ulX is the horizontal position to display this image, specified in
|
|
//! columns from the left edge of the display.
|
|
//! \param ulY is the vertical position to display this image, specified in
|
|
//! rows from the top of the display.
|
|
//! \param ulWidth is the width of the image, specified in columns.
|
|
//! \param ulHeight is the height of the image, specified in rows.
|
|
//!
|
|
//! This function will display a bitmap graphic on the display. Because of the
|
|
//! format of the display RAM, the starting column (\e ulX) and the number of
|
|
//! columns (\e ulWidth) must be an integer multiple of two.
|
|
//!
|
|
//! The image data is organized with the first row of image data appearing left
|
|
//! to right, followed immediately by the second row of image data. Each byte
|
|
//! contains the data for two columns in the current row, with the leftmost
|
|
//! column being contained in bits 7:4 and the rightmost column being contained
|
|
//! in bits 3:0.
|
|
//!
|
|
//! For example, an image six columns wide and seven scan lines tall would
|
|
//! be arranged as follows (showing how the twenty one bytes of the image would
|
|
//! appear on the display):
|
|
//!
|
|
//! \verbatim
|
|
//! +-------------------+-------------------+-------------------+
|
|
//! | Byte 0 | Byte 1 | Byte 2 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 3 | Byte 4 | Byte 5 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 6 | Byte 7 | Byte 8 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 9 | Byte 10 | Byte 11 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 12 | Byte 13 | Byte 14 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 15 | Byte 16 | Byte 17 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 18 | Byte 19 | Byte 20 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! \endverbatim
|
|
//!
|
|
//! This function is contained in <tt>rit128x96x4.c</tt>, with
|
|
//! <tt>rit128x96x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
RIT128x96x4ImageDraw(const unsigned char *pucImage, unsigned long ulX,
|
|
unsigned long ulY, unsigned long ulWidth,
|
|
unsigned long ulHeight)
|
|
{
|
|
//
|
|
// Check the arguments.
|
|
//
|
|
ASSERT(ulX < 128);
|
|
ASSERT((ulX & 1) == 0);
|
|
ASSERT(ulY < 96);
|
|
ASSERT((ulX + ulWidth) <= 128);
|
|
ASSERT((ulY + ulHeight) <= 96);
|
|
ASSERT((ulWidth & 1) == 0);
|
|
|
|
//
|
|
// Setup a window starting at the specified column and row, and ending
|
|
// at the column + width and row+height.
|
|
//
|
|
g_pucBuffer[0] = 0x15;
|
|
g_pucBuffer[1] = ulX / 2;
|
|
g_pucBuffer[2] = (ulX + ulWidth - 2) / 2;
|
|
RITWriteCommand(g_pucBuffer, 3);
|
|
g_pucBuffer[0] = 0x75;
|
|
g_pucBuffer[1] = ulY;
|
|
g_pucBuffer[2] = ulY + ulHeight - 1;
|
|
RITWriteCommand(g_pucBuffer, 3);
|
|
RITWriteCommand(g_pucRIT128x96x4HorizontalInc,
|
|
sizeof(g_pucRIT128x96x4HorizontalInc));
|
|
|
|
//
|
|
// Loop while there are more rows to display.
|
|
//
|
|
while(ulHeight--)
|
|
{
|
|
//
|
|
// Write this row of image data.
|
|
//
|
|
RITWriteData(pucImage, (ulWidth / 2));
|
|
|
|
//
|
|
// Advance to the next row of the image.
|
|
//
|
|
pucImage += (ulWidth / 2);
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Enable the SSI component of the OLED display driver.
|
|
//!
|
|
//! \param ulFrequency specifies the SSI Clock Frequency to be used.
|
|
//!
|
|
//! This function initializes the SSI interface to the OLED display.
|
|
//!
|
|
//! This function is contained in <tt>rit128x96x4.c</tt>, with
|
|
//! <tt>rit128x96x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
RIT128x96x4Enable(unsigned long ulFrequency)
|
|
{
|
|
unsigned long ulTemp;
|
|
|
|
//
|
|
// Disable the SSI port.
|
|
//
|
|
SSIDisable(SSI0_BASE);
|
|
|
|
//
|
|
// Configure the SSI0 port for master mode.
|
|
//
|
|
SSIConfig(SSI0_BASE, SSI_FRF_MOTO_MODE_2, SSI_MODE_MASTER, ulFrequency, 8);
|
|
|
|
//
|
|
// (Re)Enable SSI control of the FSS pin.
|
|
//
|
|
GPIOPinTypeSSI(GPIO_PORTA_BASE, GPIO_PIN_3);
|
|
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_3, GPIO_STRENGTH_8MA,
|
|
GPIO_PIN_TYPE_STD_WPU);
|
|
|
|
//
|
|
// Enable the SSI port.
|
|
//
|
|
SSIEnable(SSI0_BASE);
|
|
|
|
//
|
|
// Drain the receive fifo.
|
|
//
|
|
while(SSIDataNonBlockingGet(SSI0_BASE, &ulTemp) != 0)
|
|
{
|
|
}
|
|
|
|
//
|
|
// Indicate that the RIT driver can use the SSI Port.
|
|
//
|
|
g_bSSIEnabled = true;
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Enable the SSI component of the OLED display driver.
|
|
//!
|
|
//! This function initializes the SSI interface to the OLED display.
|
|
//!
|
|
//! This function is contained in <tt>rit128x96x4.c</tt>, with
|
|
//! <tt>rit128x96x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
RIT128x96x4Disable(void)
|
|
{
|
|
unsigned long ulTemp;
|
|
|
|
//
|
|
// Indicate that the RIT driver can no longer use the SSI Port.
|
|
//
|
|
g_bSSIEnabled = false;
|
|
|
|
//
|
|
// Drain the receive fifo.
|
|
//
|
|
while(SSIDataNonBlockingGet(SSI0_BASE, &ulTemp) != 0)
|
|
{
|
|
}
|
|
|
|
//
|
|
// Disable the SSI port.
|
|
//
|
|
SSIDisable(SSI0_BASE);
|
|
|
|
//
|
|
// Disable SSI control of the FSS pin.
|
|
//
|
|
GPIOPinTypeGPIOOutput(GPIO_PORTA_BASE, GPIO_PIN_3);
|
|
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_3, GPIO_STRENGTH_8MA,
|
|
GPIO_PIN_TYPE_STD_WPU);
|
|
GPIOPinWrite(GPIO_PORTA_BASE, GPIO_PIN_3, GPIO_PIN_3);
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Initialize the OLED display.
|
|
//!
|
|
//! \param ulFrequency specifies the SSI Clock Frequency to be used.
|
|
//!
|
|
//! This function initializes the SSI interface to the OLED display and
|
|
//! configures the SSD1329 controller on the panel.
|
|
//!
|
|
//! This function is contained in <tt>rit128x96x4.c</tt>, with
|
|
//! <tt>rit128x96x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
RIT128x96x4Init(unsigned long ulFrequency)
|
|
{
|
|
unsigned long ulIdx;
|
|
|
|
|
|
/* Determine which board is being used. */
|
|
if( SysCtlPeripheralPresent( SYSCTL_PERIPH_ETH ) )
|
|
{
|
|
/* Ethernet is present, we must be using the LM3S8962 EK. */
|
|
ulGPIOId = LM3S8962_SYSCTL_PERIPH_GPIO_OLEDDC;
|
|
ulGPIOBase = LM3S8962_GPIO_OLEDDC_BASE;
|
|
ulOLEDDC_PIN = GPIO_PIN_6;
|
|
ulOLEDEN_PIN = GPIO_PIN_7;
|
|
}
|
|
else
|
|
{
|
|
/* Ethernet is not present, we must be using the LM3S1968 EK. */
|
|
ulGPIOId = LM3S1968_SYSCTL_PERIPH_GPIO_OLEDDC;
|
|
ulGPIOBase = LM3S1968_GPIO_OLEDDC_BASE;
|
|
ulOLEDDC_PIN = GPIO_PIN_2;
|
|
ulOLEDEN_PIN = GPIO_PIN_3;
|
|
}
|
|
|
|
//
|
|
// Enable the SSI0 and GPIO port blocks as they are needed by this driver.
|
|
//
|
|
SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI0);
|
|
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
|
|
SysCtlPeripheralEnable(ulGPIOId);
|
|
|
|
//
|
|
// Configure the SSI0CLK and SSIOTX pins for SSI operation.
|
|
//
|
|
GPIOPinTypeSSI(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_5);
|
|
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_5,
|
|
GPIO_STRENGTH_8MA, GPIO_PIN_TYPE_STD_WPU);
|
|
|
|
//
|
|
// Configure the GPIO port pin used as a D/Cn signal for OLED device,
|
|
// and the port pin used to enable power to the OLED panel.
|
|
//
|
|
GPIOPinTypeGPIOOutput(ulGPIOBase, ulOLEDDC_PIN | ulOLEDEN_PIN);
|
|
GPIOPadConfigSet(ulGPIOBase, ulOLEDDC_PIN | ulOLEDEN_PIN,
|
|
GPIO_STRENGTH_8MA, GPIO_PIN_TYPE_STD);
|
|
GPIOPinWrite(ulGPIOBase, ulOLEDDC_PIN | ulOLEDEN_PIN,
|
|
ulOLEDDC_PIN | ulOLEDEN_PIN);
|
|
|
|
//
|
|
// Configure and enable the SSI0 port for master mode.
|
|
//
|
|
RIT128x96x4Enable(ulFrequency);
|
|
|
|
//
|
|
// Clear the frame buffer.
|
|
//
|
|
RIT128x96x4Clear();
|
|
|
|
//
|
|
// Initialize the SSD1329 controller. Loop through the initialization
|
|
// sequence array, sending each command "string" to the controller.
|
|
//
|
|
for(ulIdx = 0; ulIdx < sizeof(g_pucRIT128x96x4Init);
|
|
ulIdx += g_pucRIT128x96x4Init[ulIdx] + 1)
|
|
{
|
|
//
|
|
// Send this command.
|
|
//
|
|
RITWriteCommand(g_pucRIT128x96x4Init + ulIdx + 1,
|
|
g_pucRIT128x96x4Init[ulIdx] - 1);
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Turns on the OLED display.
|
|
//!
|
|
//! This function will turn on the OLED display, causing it to display the
|
|
//! contents of its internal frame buffer.
|
|
//!
|
|
//! This function is contained in <tt>rit128x96x4.c</tt>, with
|
|
//! <tt>rit128x96x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
RIT128x96x4DisplayOn(void)
|
|
{
|
|
unsigned long ulIdx;
|
|
|
|
//
|
|
// Initialize the SSD1329 controller. Loop through the initialization
|
|
// sequence array, sending each command "string" to the controller.
|
|
//
|
|
for(ulIdx = 0; ulIdx < sizeof(g_pucRIT128x96x4Init);
|
|
ulIdx += g_pucRIT128x96x4Init[ulIdx] + 1)
|
|
{
|
|
//
|
|
// Send this command.
|
|
//
|
|
RITWriteCommand(g_pucRIT128x96x4Init + ulIdx + 1,
|
|
g_pucRIT128x96x4Init[ulIdx] - 1);
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Turns off the OLED display.
|
|
//!
|
|
//! This function will turn off the OLED display. This will stop the scanning
|
|
//! of the panel and turn off the on-chip DC-DC converter, preventing damage to
|
|
//! the panel due to burn-in (it has similar characters to a CRT in this
|
|
//! respect).
|
|
//!
|
|
//! This function is contained in <tt>rit128x96x4.c</tt>, with
|
|
//! <tt>rit128x96x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
RIT128x96x4DisplayOff(void)
|
|
{
|
|
static const unsigned char pucCommand1[] =
|
|
{
|
|
0xAE, 0xe3
|
|
};
|
|
|
|
//
|
|
// Put the display to sleep.
|
|
//
|
|
RITWriteCommand(pucCommand1, sizeof(pucCommand1));
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Close the Doxygen group.
|
|
//! @}
|
|
//
|
|
//*****************************************************************************
|