jens
6ac97e7bf3
Committed on the Free edition of March Hare Software CVSNT Server. Upgrade to CVS Suite for more features and support: http://march-hare.com/cvsnt/ git-svn-id: http://moon:8086/svn/vhdl/trunk@517 cc03376c-175c-47c8-b038-4cd826a8556b
155 lines
2.9 KiB
C
155 lines
2.9 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "irq.h"
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#define CPU_FREQ_HZ 100000000
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#include "libsys.h"
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char buffer[16384];
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char * volatile pPtr_r;
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char * volatile pPtr_w;
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void handler0(void)
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{
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printf("Interrupt 0\n");
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interrupt_clr(0);
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}
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void handler1(void)
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{
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printf("Interrupt 1\n");
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interrupt_clr(1);
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}
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void handler2(void)
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{
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printf("Interrupt 2\n");
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}
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void handler3(void)
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{
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volatile UINT32 *pUART0_stat = (UINT32*)sys_uart0_stat;
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volatile UINT32 *pUART0_data = (UINT32*)sys_uart0_data;
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volatile UINT32 *pUART1_stat = (UINT32*)sys_uart1_stat;
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volatile UINT32 *pUART1_data = (UINT32*)sys_uart1_data;
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while(0x200 & *pUART0_stat)
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{
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// sputs("w: "); print_word((int)pPtr_w); sputs("\n");
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if (pPtr_w == &buffer[16383])
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pPtr_w = buffer;
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*(pPtr_w++) = *pUART0_data;
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}
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while(0x200 & *pUART1_stat)
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{
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// sputs("w: "); print_word((int)pPtr_w); sputs("\n");
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if (pPtr_w == &buffer[16383])
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pPtr_w = buffer;
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*(pPtr_w++) = *pUART1_data;
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}
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}
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void handler4(void)
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{
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printf("Interrupt 4\n");
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}
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void handler5(void)
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{
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printf("Interrupt 5\n");
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}
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void handler6(void)
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{
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printf("Interrupt 6\n");
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}
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void handler7(void)
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{
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printf("Interrupt 7\n");
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}
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int main(void)
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{
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volatile UINT32 *pUART0_stat = (UINT32*)sys_uart0_stat;
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volatile UINT32 *pUART1_stat = (UINT32*)sys_uart1_stat;
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volatile UINT32 *pUART0_baud = (UINT32*)sys_uart0_baud;
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volatile UINT32 *pUART1_baud = (UINT32*)sys_uart1_baud;
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UART1_setbaud(460800);
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printf("Hello\n");
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memset(buffer, 0, sizeof(buffer));
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pPtr_r = buffer;
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pPtr_w = buffer;
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interrupt_register(0, handler0);
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interrupt_enable(0);
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interrupt_register(1, handler1);
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interrupt_enable(1);
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interrupt_register(2, handler2);
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interrupt_enable(2);
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printf("UART0 Status = 0x%8.8X\n", *pUART0_stat);
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printf("UART0 Baud = 0x%8.8X\n", *pUART0_baud);
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printf("UART1 Status = 0x%8.8X\n", *pUART1_stat);
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printf("UART1 Baud = 0x%8.8X\n", *pUART1_baud);
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// enable RX interrupt
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*pUART0_stat |= (1 << 6);
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*pUART1_stat |= (1 << 6);
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printf("UART0 Status = 0x%8.8X\n", *pUART0_stat);
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printf("UART1 Status = 0x%8.8X\n", *pUART1_stat);
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interrupt_register(3, handler3);
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interrupt_enable(3);
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interrupt_register(4, handler4);
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// interrupt_enable(4);
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interrupt_register(5, handler5);
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interrupt_enable(5);
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interrupt_register(6, handler6);
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interrupt_enable(6);
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interrupt_register(7, handler7);
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interrupt_enable(7);
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printf("Start:\n");
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interrupt_set(0);
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interrupt_set(1);
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interrupt_set(2);
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interrupt_set(3);
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interrupt_set(4);
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interrupt_set(5);
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interrupt_set(6);
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interrupt_set(7);
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sputs("r: "); print_word((int)pPtr_r); sputs("\n");
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sputs("w: "); print_word((int)pPtr_w); sputs("\n");
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// Print Status register
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sputs("Status : ");
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print_word(CP0_SR_read());
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sputs("\n");
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while(1)
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{
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if(pPtr_w != pPtr_r)
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{
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// sputs("r: "); print_word((int)pPtr_r); sputs("\n");
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if (pPtr_r == &buffer[16383])
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pPtr_r = buffer;
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writechar(*(pPtr_r++));
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}
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}
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return 0;
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}
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