瑞萨RA2L1实现IWDT独立看门狗定时器驱动（e2 studio开发环境-FSP库驱动）

#include "hal_data.h" FSP_CPP_HEADER void R_BSP_WarmStart(bsp_warm_start_event_t event); FSP_CPP_FOOTER #include "bsp_iwdt/bsp_iwdt.h" #include "led/bsp_led.h" /*按键中断回调函数*/ void key1_callback(external_irq_callback_args_t *p_args) { FSP_PARAMETER_NOT_USED(p_args); /*按键按下触发中断，进行喂狗操作*/ IWDT_Feed(); } /*******************************************************************************************************************//** * main() is generated by the RA Configuration editor and is used to generate threads if an RTOS is used. This function * is called by main() when no RTOS is used. **********************************************************************************************************************/ void hal_entry(void) { /* TODO: add your own code here */ /*红色LED亮*/ LED1_ON; /*按键中断初始化*/ g_external_irq_on_icu.open(&key1_ctrl, &key1_cfg); g_external_irq_on_icu.enable(&key1_ctrl); /*初始化看门狗*/ IWDT_Init(); while(1) { /*这部分应该写需要被WDT监控的程序*/ } #if BSP_TZ_SECURE_BUILD /* Enter non-secure code */ R_BSP_NonSecureEnter(); #endif } /*******************************************************************************************************************//** * This function is called at various points during the startup process. This implementation uses the event that is * called right before main() to set up the pins. * * @param[in] event Where at in the start up process the code is currently at **********************************************************************************************************************/ void R_BSP_WarmStart (bsp_warm_start_event_t event) { if (BSP_WARM_START_RESET == event) { #if BSP_FEATURE_FLASH_LP_VERSION != 0 /* Enable reading from data flash. */ R_FACI_LP->DFLCTL = 1U; /* Would normally have to wait tDSTOP(6us) for data flash recovery. Placing the enable here, before clock and * C runtime initialization, should negate the need for a delay since the initialization will typically take more than 6us. */ #endif } if (BSP_WARM_START_POST_C == event) { /* C runtime environment and system clocks are setup. */ /* Configure pins. */ R_IOPORT_Open(&g_ioport_ctrl, g_ioport.p_cfg); } } #if BSP_TZ_SECURE_BUILD BSP_CMSE_NONSECURE_ENTRY void template_nonsecure_callable (); /* Trustzone Secure Projects require at least one nonsecure callable function in order to build (Remove this if it is not required to build). */ BSP_CMSE_NONSECURE_ENTRY void template_nonsecure_callable () { } #endif