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- added interrupt handler

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git-svn-id: http://moon:8086/svn/mips@33 a8ebac50-d88d-4704-bea3-6648445a41b3
This commit is contained in:
jens
2015-05-27 21:39:55 +00:00
parent 139e91efaa
commit fd3ddc7e4c
1 changed files with 18 additions and 8 deletions
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src/bootloader/test.c
+18 -8
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@@ -1,28 +1,38 @@
#include "libsys_boot.h" #include "libsys_boot.h"
void handler3(void)
{
volatile uint32_t *pUART0_stat = (uint32_t*)SYS_UART_STAT;
volatile uint32_t *pUART0_data = (uint32_t*)SYS_UART_DATA;
while(0x200 & *pUART0_stat)
{
sputs("RX: "); print_word((int)*pUART0_data); sputs("\n");
}
}
void main() void main()
{ {
uint32_t i; uint8_t led = 0;
volatile uint32_t *pUART0_stat = (uint32_t*)SYS_UART_STAT; volatile uint32_t *pUART0_stat = (uint32_t*)SYS_UART_STAT;
volatile uint32_t *pGPIO = (uint32_t*)SYS_GPIO_0_DATA; volatile uint32_t *pGPIO = (uint32_t*)SYS_GPIO_0_DATA;
volatile uint32_t *pGPIODIR = (uint32_t*)SYS_GPIO_0_DIR; volatile uint32_t *pGPIODIR = (uint32_t*)SYS_GPIO_0_DIR;
volatile uint32_t *pRAM = (uint32_t*)SDRAM_BASE; volatile uint32_t *pRAM = (uint32_t*)SDRAM_BASE;
CP0_SR_write(0x0060000D);
*pGPIODIR = GPIO_0_DFLT_DIR; *pGPIODIR = GPIO_0_DFLT_DIR;
uint8_t led = 0;
interrupt_init();
interrupt_register(3, (void*)handler3);
interrupt_enable(3);
// UART: enable RX interrupt // UART: enable RX interrupt
*pUART0_stat |= (1 << 6); *pUART0_stat |= (1 << 6);
CP0_SR_write(0x0060000D);
interrupt_enable(3);
sputs("Hello, world!\n"); sputs("Hello, world!\n");
while(1) while(1)
{ {
sputs("Iteration # ");print_word(led);sputs("\n"); sputs("Iteration # ");print_word(led);sputs("\n");
sputs("Uart status : ");print_word(*pUART0_stat);sputs("\n");
sputs("CPU status : ");print_word(CP0_SR_read());sputs("\n");
*pGPIO = led; *pGPIO = led;
if(led == 0) if(led == 0)