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【FireBLE试用体验】之TIMER

2015-8-19 21:50:52 3635

0 今天要来学习FireBLE的timer 实验目的：使用Timer来让led灯交替闪烁实验电路：实验代码： GPIO配置 // P0.0 -> GPIO Pull Up Drive ability: Low // P0.3 -> GPIO Pull Up Drive ability: Low // P0.6 -> SWD [DAT] Pull Up Drive ability: Low // P0.7 -> SWD [CLK] Pull Up Drive ability: Low // P1.0 -> GPIO Pull Up Drive ability: Low // P1.1 -> GPIO Pull Up Drive ability: Low // P1.2 -> GPIO Pull Up Drive ability: Low // P1.3 -> GPIO Pull Up Drive ability: Low // P1.7 -> GPIO Pull Up Drive ability: Low // P2.3 -> GPIO Pull Up Drive ability: Low // P2.4 -> GPIO Pull Up Drive ability: Low // P2.6 -> GPIO Pull Up Drive ability: Low // P2.7 -> GPIO Pull Up Drive ability: High // P3.0 -> GPIO Pull Up Drive ability: Low // P3.1 -> GPIO Pull Up Drive ability: Low //Pin Mux Control Register syscon_SetPMCR0(QN_SYSCON, P00_GPIO_0_PIN_CTRL \| P03_GPIO_3_PIN_CTRL \| P06_SW_DAT_PIN_CTRL \| P07_SW_CLK_PIN_CTRL \| P10_GPIO_8_PIN_CTRL \| P11_GPIO_9_PIN_CTRL \| P12_GPIO_10_PIN_CTRL \| P13_GPIO_11_PIN_CTRL \| P17_GPIO_15_PIN_CTRL); //Pin Mux Control Register syscon_SetPMCR1(QN_SYSCON, P23_GPIO_19_PIN_CTRL \| P24_GPIO_20_PIN_CTRL \| P26_GPIO_22_PIN_CTRL \| P27_GPIO_23_PIN_CTRL \| P30_GPIO_24_PIN_CTRL \| P31_GPIO_25_PIN_CTRL); //Pull Control Register syscon_SetPPCR0(QN_SYSCON, 0xAAAAAAAA); //Pull Control Register syscon_SetPPCR1(QN_SYSCON, 0xAAAAAAAA); //Drive ability Control Register syscon_SetPDCR(QN_SYSCON, 0x00800000); 复制代码以上代码替换掉system.c里的SystemIOCfg函数主程序代码 #include "timer.h" #include "system.h" /led翻转/ void led_blink(void) { gpio_toggle_pin(GPIO_P27); } int main(void) { /系统初始化/ SystemInit(); /配置GPIO/ gpio_init(NULL); gpio_set_direction(GPIO_P27,GPIO_OUTPUT); gpio_write_pin_field(GPIO_PIN_ALL,GPIO_HIGH); /配置Timer0/ timer_init(QN_TIMER0,led_blink); timer_config(QN_TIMER0,TIMER_PSCAL_DIV,TIMER_COUNT_MS(1000,TIMER_PSCAL_DIV)); timer_enable(QN_TIMER0,MASK_ENABLE); while(true) { } } 复制代码编译下载至开发板，可以看到蓝色的LED每隔1秒交替闪烁。 0
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