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206 lines
9.1 KiB
C
206 lines
9.1 KiB
C
/** ###################################################################
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** THIS BEAN MODULE IS GENERATED BY THE TOOL. DO NOT MODIFY IT.
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** Filename : COM0.C
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** Project : RTOSDemo
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** Processor : MC9S12DP256BCPV
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** Beantype : AsynchroSerial
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** Version : Bean 02.231, Driver 01.08, CPU db: 2.87.283
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** Compiler : Metrowerks HC12 C Compiler
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** Date/Time : 19/06/2005, 15:07
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** Abstract :
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** This bean "AsynchroSerial" implements an asynchronous serial
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** communication. The bean supports different settings of
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** parity, word width, stop-bit and communication speed,
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** user can select interrupt or polling handler.
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** Communication speed can be changed also in runtime.
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** The bean requires one on-chip asynchronous serial channel.
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** Settings :
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** Serial channel : SCI0
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**
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** Protocol
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** Init baud rate : 38400baud
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** Width : 8 bits
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** Stop bits : 1
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** Parity : none
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** Breaks : Disabled
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**
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** Registers
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** Input buffer : SCI0DRL [207]
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** Output buffer : SCI0DRL [207]
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** Control register : SCI0CR1 [202]
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** Mode register : SCI0CR2 [203]
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** Baud setting reg. : SCI0BD [200]
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** Special register : SCI0SR1 [204]
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**
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** Input interrupt
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** Vector name : INT_SCI0
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** Priority : 1
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**
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** Output interrupt
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** Vector name : INT_SCI0
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** Priority : 1
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**
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** Used pins :
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** ----------------------------------------------------
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** Function | On package | Name
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** ----------------------------------------------------
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** Input | 89 | PS0_RxD0
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** Output | 90 | PS1_TxD0
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** ----------------------------------------------------
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**
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**
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** Used baud modes :
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** ----------------------------------------------------
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** No. | Mode ID | Baud rate
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** ----------------------------------------------------
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** 0 | Bm_38400baud | 38400baud
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** 1 | Bm_19200baud | 19200baud
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** 2 | Bm_9600baud | 9600baud
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** 3 | Bm_4800baud | 4800baud
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** ----------------------------------------------------
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** Contents :
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** SetBaudRateMode - byte COM0_SetBaudRateMode(byte Mod);
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**
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** (c) Copyright UNIS, spol. s r.o. 1997-2002
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** UNIS, spol. s r.o.
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** Jundrovska 33
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** 624 00 Brno
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** Czech Republic
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** http : www.processorexpert.com
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** mail : info@processorexpert.com
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** ###################################################################*/
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/* MODULE COM0. */
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#pragma MESSAGE DISABLE C4002 /* WARNING C4002: Result not used is ignored */
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#pragma MESSAGE DISABLE C4301 /* INFORMATION C4301: Inline expansion done for function call */
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#include "COM0.h"
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#include "TickTimer.h"
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#include "Byte1.h"
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/* Definition of DATA and CODE segments for this bean. User can specify where
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these segments will be located on "Build options" tab of the selected CPU bean. */
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#pragma DATA_SEG COM0_DATA /* Data section for this module. */
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#pragma CODE_SEG COM0_CODE /* Code section for this module. */
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#define OVERRUN_ERR 1 /* Overrun error flag bit */
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#define FRAMING_ERR 2 /* Framing error flag bit */
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#define PARITY_ERR 4 /* Parity error flag bit */
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#define CHAR_IN_RX 8 /* Char is in RX buffer */
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#define FULL_TX 16 /* Full transmit buffer */
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#define RUNINT_FROM_TX 32 /* Interrupt is in progress */
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#define FULL_RX 64 /* Full receive buffer */
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#define NOISE_ERR 128 /* Noise erorr flag bit */
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#define IDLE_ERR 256 /* Idle character flag bit */
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#define BREAK_ERR 512 /* Break detect */
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static word SerFlag; /* Flags for serial communication */
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/* Bits: 0 - OverRun error */
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/* 1 - Framing error */
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/* 2 - Parity error */
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/* 3 - Char in RX buffer */
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/* 4 - Full TX buffer */
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/* 5 - Running int from TX */
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/* 6 - Full RX buffer */
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/* 7 - Noise error */
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/* 8 - Idle character */
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/* 9 - Break detected */
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/* 10 - Unused */
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static word PrescHigh;
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static byte NumMode; /* Number of selected baud mode */
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/*
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** ===================================================================
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** Method : HWEnDi (bean AsynchroSerial)
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**
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** Description :
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** This method is internal. It is used by Processor Expert
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** only.
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** ===================================================================
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*/
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static void HWEnDi(void)
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{
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SCI0CR2_TE = 1; /* Enable transmitter */
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SCI0CR2_RE = 1; /* Enable receiver */
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SCI0CR2_RIE = 1; /* Enable recieve interrupt */
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}
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/*
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** ===================================================================
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** Method : COM0_SetBaudRateMode (bean AsynchroSerial)
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**
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** Description :
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** This method changes the channel communication speed (baud
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** rate). This method can be used only if you specify a list
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** of possible period settings at design time (see <Timing
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** dialog box> - Runtime setting - from a list of values).
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** Each of these settings constitutes a mode and Processor
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** Expert^[TM] assigns them a mode identifier. The prescaler
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** and compare values corresponding to each mode are
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** calculated at design time. You may switch modes at
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** runtime by referring only to a mode identifier. No
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** run-time calculations are performed, all the calculations
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** are performed at design time.
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** Parameters :
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** NAME - DESCRIPTION
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** Mod - Timing mode to set
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** Returns :
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** --- - Error code, possible codes:
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** ERR_OK - OK
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** ERR_SPEED - This device does not work in
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** the active speed mode
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** ===================================================================
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*/
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byte COM0_SetBaudRateMode(byte Mod)
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{
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static const word COM0_PrescHigh[4] = {41,81,163,326};
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if(Mod >= 4) /* Is mode in baud mode list */
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return ERR_VALUE; /* If no then error */
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NumMode = Mod; /* New baud mode */
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PrescHigh = COM0_PrescHigh[Mod]; /* Prescaler in high speed mode */
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SCI0BD = PrescHigh; /* Set prescaler bits */
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return ERR_OK; /* OK */
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}
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/*
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** ===================================================================
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** Method : COM0_Init (bean AsynchroSerial)
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**
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** Description :
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** This method is internal. It is used by Processor Expert
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** only.
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** ===================================================================
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*/
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void COM0_Init(void)
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{
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PrescHigh = 41; /* Precaler in high speed mode */
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SerFlag = 0; /* Reset flags */
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NumMode = 0; /* Number of selected baud mode */
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/* SCI0CR1: LOOPS=0,SCISWAI=1,RSRC=0,M=0,WAKE=0,ILT=0,PE=0,PT=0 */
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SCI0CR1 = 64; /* Set the SCI configuration */
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/* SCI0SR2: ??=0,??=0,??=0,??=0,??=0,BRK13=0,TXDIR=0,RAF=0 */
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SCI0SR2 = 0; /* Set the Break Character Length and Transmitter pin data direction in Single-wire mode */
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SCI0SR1; /* Reset interrupt request flags */
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/* SCI0CR2: SCTIE=0,TCIE=0,RIE=0,ILIE=0,TE=0,RE=0,RWU=0,SBK=0 */
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SCI0CR2 = 0; /* Disable error interrupts */
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SCI0BD = PrescHigh; /* Set prescaler bits */
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HWEnDi(); /* Enable/disable device according to status flags */
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}
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/* END COM0. */
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/*
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** ###################################################################
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**
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** This file was created by UNIS Processor Expert 03.33 for
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** the Motorola HCS12 series of microcontrollers.
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**
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** ###################################################################
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*/
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