/* * File      : board.c * This file is part of RT-Thread RTOS * COPYRIGHT (C) 2006, RT-Thread Develop Team * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://openlab.rt-thread.com/license/LICENSE * * Change Logs: * Date           Author       Notes *                Triseel */#include <rtthread.h>#include <rthw.h>#include <AT9200.h>#include <serial.h>#include "board.h"#define DATA_COUNT	0x147  /* calc by slow crystal *//** * @addtogroup AT9200 *//*@{*/static void rt_hw_led_init(void){	REG_OUT32(AT9200_PIOC_PER  , 0x00, HW_LED_PORT);	REG_OUT32(AT9200_PIOC_OER  , 0x00, HW_LED_PORT);	REG_OUT32(AT9200_PIOC_IFER , 0x00, HW_LED_PORT);	REG_OUT32(AT9200_PIOC_IDR  , 0x00, HW_LED_PORT);	REG_OUT32(AT9200_PIOC_PPUER, 0x00, HW_LED_PORT);	REG_OUT32(AT9200_PIOC_OWER , 0x00, HW_LED_PORT);	REG_OUT32(AT9200_PIOC_SODR , 0x00, HW_LED_PORT);}void rt_timer_handler(int vector){	volatile rt_uint32_t dummy;	dummy = REG_IN32(AT9200_TC0_SR, 0);	rt_tick_increase();}#ifdef RT_USING_FINSHextern void finsh_notify(void);/*************************************************** Implemented : Triseel** Func Name   : rt_sysint_handler** Comments    : handle 9200 sys multi ints** Notes       : coz 9200 timer tick int shared with other int** Input  Args :**               argVec : sys int vec num** Output Args :**               none** Rtn    Val  :**               none*************************************************/void rt_sysint_handler(int argVec){	/* dbg UART */	if (BMP_ISSET(REG_IN32(AT9200_BASE_DBGU, AT9200_UART_CSR_OFF), AT9200_US_RXRDY_BIT))	{		finsh_notify();	}}#endif/** * This function will initialize AT9200 development board. */void rt_hw_board_init(){	register rt_uint32_t RdVal;	/* init time counter */	RdVal = REG_IN32(AT9200_TC0_SR, 0);				/* read and clear status register */	REG_OUT32(AT9200_TC0_CCR,	0, (1 << 1));		/* disable timer */	REG_OUT32(AT9200_PMC_PCER,	0, (1 << TC0_VEC));	/* enable peripheral clock in pmc for tc0 */    REG_OUT32(AT9200_TC0_CMR,	0, 0x4004);			/* compare trigger enable and timer clock2 */    REG_OUT32(AT9200_TC0_RC,	0, DATA_COUNT);		/* 100 ticks per second */    // REG_OUT32(AT9200_TC0_RC,	0, 0x1998);		/* 100 ticks per second */    REG_OUT32(AT9200_TC0_IER,	0, (1 << 4));		/* enable RC compare interrupt */    REG_OUT32(AT9200_TC0_CCR,	0, 0x05);			/* enable clock counter and software trigger */	/* timer counter interrupt init */	REG_OUT32(AT9200_AIC_SMR,	TC0_VEC*4,	0x02);				/* interrupt trigger mode & priority */	REG_OUT32(AT9200_AIC_ICCR,	0,			(1 << TC0_VEC));	/* clear the TC0 interrupt */    REG_OUT32(AT9200_AIC_IECR,	0,			(1 << TC0_VEC));	/* enable the TC0 interrupt */	/* install int handler & unmask immediately*/	rt_hw_interrupt_install(TC0_VEC, rt_timer_handler, RT_NULL);	rt_hw_interrupt_umask(TC0_VEC);#ifdef RT_USING_FINSH	/* dbgu interrupt init */	REG_OUT32(AT9200_AIC_SMR ,	SYS_VEC*4,	0x27);				/* interrupt trigger mode & priority */	REG_OUT32(AT9200_AIC_ICCR,	0,			1<<SYS_VEC);		/* clear AIC int */	REG_OUT32(AT9200_AIC_IECR,	0,			1<<SYS_VEC);		/* enable AIC int */	/* install int handler & unmask immediately*/	rt_hw_interrupt_install(SYS_VEC, rt_sysint_handler, RT_NULL);	rt_hw_interrupt_umask(SYS_VEC);#endif	/* init hardware serial */	UARTPort_T UARTDbgPort;	rt_memset(&UARTDbgPort, 0, sizeof(UARTDbgPort));	UARTDbgPort.Port=UART_DBG;	UARTDbgPort.bInited =0;	UARTDbgPort.DataBits=DataBits_8;	UARTDbgPort.Parity  =Parity_None;	UARTDbgPort.StopBits=StopBits_1;	UARTDbgPort.BaudRate=115200;	rt_serial_init(&UARTDbgPort);	rt_hw_led_init();}/** * This function will set AT9200 development board led. * @param led not zero to set led on otherwise off */void rt_hw_led_set(rt_uint32_t led){	if (led)/*on*/		REG_OUT32(AT9200_PIOC_CODR, 0x00, HW_LED_PORT);  /* clear to let LED on */	else	/*off*/		REG_OUT32(AT9200_PIOC_SODR, 0x00, HW_LED_PORT);}void rt_hw_led_flash(void){	rt_uint32_t i, j;	rt_hw_led_set(0);	for (i=0;i<0xFFFF;i++) j++;	rt_hw_led_set(1);	for (i=0;i<0xFFFF;i++) j++;}#ifdef RT_USING_FINSHvoid rt_hw_finsh_init(){	/* init the cpu regs firstly */	REG_OUT32(AT9200_BASE_DBGU, AT9200_UART_IER_OFF, AT9200_US_RXRDY_BIT);  /* enable rx rdy int */}#endif/*@}*/