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96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
19 years ago
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//*----------------------------------------------------------------------------
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//* ATMEL Microcontroller Software Support - ROUSSET -
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//*----------------------------------------------------------------------------
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//* The software is delivered "AS IS" without warranty or condition of any
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//* kind, either express, implied or statutory. This includes without
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//* limitation any warranty or condition with respect to merchantability or
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//* fitness for any particular purpose, or against the infringements of
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//* intellectual property rights of others.
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//*----------------------------------------------------------------------------
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//* File Name : dbgu.c
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//* Object : DBGU routines written in C
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//* Creation : JG 16/Aug/2004
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//*----------------------------------------------------------------------------
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// Include Standard files
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#include "Board.h"
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//*--------------------------1--------------------------------------------------
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//* \fn AT91F_DBGU_Printk
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//* \brief This function is used to send a string through the DBGU channel (Very low level debugging)
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//*----------------------------------------------------------------------------
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void AT91F_DBGU_Printk( char *buffer)
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{
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AT91PS_DBGU pDbgu = AT91C_BASE_DBGU ;
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unsigned int temp;
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while(*buffer != '\0')
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{
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temp=0;
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while (temp==0)
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{
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if ( (pDbgu->DBGU_CSR & 0x0200) == 0)
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temp=0;
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else
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temp=1;
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}
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pDbgu->DBGU_THR = *buffer;
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buffer++;
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}
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}
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void Init_DBGU_CLK(void)
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{
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AT91F_PMC_EnablePeriphClock(AT91C_BASE_PMC, ((unsigned int) 1 << AT91C_ID_SYS));
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}
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void Init_DBGU_BGR(unsigned short baud)
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{
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AT91PS_DBGU pDbgu = AT91C_BASE_DBGU ;
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pDbgu->DBGU_BRGR = (unsigned short)baud;
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}
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void DBGU_TX_Enable(void)
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{
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AT91PS_DBGU pDbgu = AT91C_BASE_DBGU ;
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pDbgu->DBGU_CR = 0x00000040;
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}
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void DBGU_RX_Enable(void)
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{
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AT91PS_DBGU pDbgu = AT91C_BASE_DBGU ;
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pDbgu->DBGU_CR = 0x00000010;
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}
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void DBGU_RX_TX_RST_DIS(void)
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{
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AT91PS_DBGU pDbgu = AT91C_BASE_DBGU ;
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pDbgu->DBGU_CR = 0x000000AC;
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}
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void DBGU_Parity_Cfg(unsigned int par)
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{
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AT91PS_DBGU pDbgu = AT91C_BASE_DBGU ;
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pDbgu->DBGU_MR = par << 9;
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}
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void Init_DBGU(void)
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{
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AT91F_DBGU_CfgPIO();
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DBGU_RX_TX_RST_DIS();
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Init_DBGU_BGR(26); //26 <=> 115kBd
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DBGU_Parity_Cfg(4);
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DBGU_TX_Enable();
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DBGU_RX_Enable();
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}
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