85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
#include <stdint.h>
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#include "../../bsp/include/timer.h"
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#include "../../bsp/include/utils.h"
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#include "../../bsp/include/rvic.h"
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#include "../../bsp/include/gpio.h"
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#include "../../bsp/include/pinmux.h"
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static volatile uint32_t count;
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int main()
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{
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count = 0;
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#ifdef SIMULATION
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timer_set_clk_div(TIMER0, 50);
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timer_set_value(TIMER0, 100); // 100us period
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timer_clear_int_pending(TIMER0);
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timer_set_int_enable(TIMER0, 1);
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timer_set_mode_auto_reload(TIMER0);
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rvic_set_irq_prio_level(RVIC_TIMER0_INT_ID, 1);
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rvic_irq_enable(RVIC_TIMER0_INT_ID);
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global_irq_enable();
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timer_start(TIMER0, 1);
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while (1) {
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if (count == 3) {
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timer_start(TIMER0, 0);
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// TODO: do something
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set_test_pass();
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break;
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}
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}
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return 0;
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#else
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// timer0时钟25分频，即1MHZ
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timer_set_clk_div(TIMER0, 25);
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// timer0定时时间10ms
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timer_set_value(TIMER0, 10000);
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// 清timer0中断pending
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timer_clear_int_pending(TIMER0);
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// 使能timer0中断
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timer_set_int_enable(TIMER0, 1);
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// 设置timer0自动装载模式
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timer_set_mode_auto_reload(TIMER0);
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// 设置timer0中断优先级为1
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rvic_set_irq_prio_level(RVIC_TIMER0_INT_ID, 1);
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// 使能RVIC中断
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rvic_irq_enable(RVIC_TIMER0_INT_ID);
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// 使能全局中断
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global_irq_enable();
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// 启动timer0
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timer_start(TIMER0, 1);
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// IO7用作GPIO7
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pinmux_set_io7_func(IO7_GPIO7);
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// GPIO7输出使能
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gpio_set_mode(GPIO7, GPIO_MODE_OUTPUT);
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while (1) {
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// 500ms
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if (count == 50) {
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count = 0;
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// 取反GPIO7状态
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gpio_set_output_toggle(GPIO7); // toggle led
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}
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}
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#endif
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}
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// timer0中断处理函数
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void timer0_irq_handler()
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{
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timer_clear_int_pending(TIMER0);
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rvic_clear_irq_pending(RVIC_TIMER0_INT_ID);
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count++;
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}
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