TC_test.rar_AT91RM9200 TC_arm9200_at91rm9200_control_linux at91r

//*---------------------------------------------------------------------------- //* ATMEL Microcontroller Software Support - ROUSSET - //*---------------------------------------------------------------------------- //* The software is delivered "AS IS" without warranty or condition of any //* kind, either express, implied or statutory. This includes without //* limitation any warranty or condition with respect to merchantability or //* fitness for any particular purpose, or against the infringements of //* intellectual property rights of others. //*---------------------------------------------------------------------------- //* File Name : main.c //* Object : main application written in C //* Creation : ODi 11/18/2002 //* //*---------------------------------------------------------------------------- #include "lib_arm920t.h" #include "AT91RM9200.h" #include "lib_AT91RM9200.h" #include "def.h" #include "console.h" //* Interrupt Handlers extern void AT91F_ST_ASM_HANDLER(void); //* system timer counter unsigned int StTick = 0; //*---------------------------------------------------------------------------- //* \fn AT91F_GetTickCount //* \brief This function returns the value of the system timer //* This function is for demonstration purpose only //*---------------------------------------------------------------------------- unsigned int AT91F_GetTickCount(void) { return(StTick); } //*---------------------------------------------------------------------------- //* \fn AT91F_ST_HANDLER //* \brief This function is invoked by main //* This function is for demonstration purpose only //*---------------------------------------------------------------------------- void AT91F_ST_HANDLER(void) { volatile int StStatus; puts("test st interrupt\n "); printf("%x\n",StTick ); // Read the system timer status register StStatus = *(AT91C_ST_SR); StTick++; // if(!(StTick&0xff)) // putch('I'); } void __irq irq_handler(void) { void (*svr)(void); AT91PS_AIC ptr = AT91C_BASE_AIC; U32 i; U8 irq_idx; //取得中断入口地址可用AIC_IVR或用AIC_ISR作索引得到AIC_SVR数组中的地址 i = ptr->AIC_IVR; //read AIC_IVR irq_idx = ptr->AIC_ISR&0x1f; //边沿触发中断必须以此清中断 AT91F_AIC_ClearIt(AT91C_BASE_AIC, irq_idx); // Write in the IVR to support Protect Mode // No effect in Normal Mode // De-assert the NIRQ and clear the source in Protect Mode ptr->AIC_IVR = (AT91_REG)ptr; puts("I kim\n "); printf("%x,%x,%x\n", irq_idx, ptr->AIC_IPR, ptr->AIC_CISR); svr = (void (*)(void))i;//ptr->AIC_SVR[irq_idx]; (*svr)(); AT91F_AIC_AcknowledgeIt(ptr); //退出中断前必须应答 } static void InitPio(void) { //led AT91F_PIO_CfgOutput(AT91C_BASE_PIOB, AT91C_PIO_PB25|AT91C_PIO_PB26); AT91F_PIO_ClearOutput(AT91C_BASE_PIOB, AT91C_PIO_PB25|AT91C_PIO_PB26); //key // AT91F_PIO_CfgInput(AT91C_BASE_PIOB, AT91C_PIO_PB6|AT91C_PIO_PB7|AT91C_PIO_PB8|AT91C_PIO_PB9); //buzzer AT91F_PIO_CfgOutput(AT91C_BASE_PIOB, AT91C_PIO_PB22); AT91F_PIO_SetOutput(AT91C_BASE_PIOB, AT91C_PIO_PB22); delay(20); AT91F_PIO_ClearOutput(AT91C_BASE_PIOB, AT91C_PIO_PB22); } //*---------------------------------------------------------------------------- //* \fn main //* \brief //* //*---------------------------------------------------------------------------- int main() { puts("\n\n-I- ======================================\n"); puts("-I- AT91RM9200 Timer-counter example\n"); puts("-I- --------------------------------------\n"); InitPio(); //* System Timer initialization //AT91F_ST_SetPeriodInterval(AT91C_BASE_ST, AT91C_ST_PITS); AT91F_ST_SetPeriodInterval(AT91C_BASE_ST, 1500); AT91F_ST_EnableIt(AT91C_BASE_ST, AT91C_ST_PITS); AT91F_AIC_ConfigureIt ( AT91C_BASE_AIC, // AIC base address AT91C_ID_SYS, // System peripheral ID AT91C_AIC_PRIOR_HIGHEST, // Max priority AT91C_AIC_SRCTYPE_INT_LEVEL_SENSITIVE, // Level sensitive AT91F_ST_ASM_HANDLER ); //* Enable ST interrupt AT91F_AIC_EnableIt(AT91C_BASE_AIC, AT91C_ID_SYS); delay(100); AT91F_RTC_InterruptDisable(AT91C_BASE_RTC, 0x1f); // AT91F_ST_DisableIt(AT91C_BASE_ST, 0xf); *AT91C_PMC_IDR = 0xf0f; while(1); }