配置选项说明:linux-4.9\Documentation\devicetree\bindings\watchdog\gpio_wdt.txt C++ * GPIO-controlled WatchdogRequired Properties:- compatible: Should contain"linux,wdt-gpio".- gpios: From common gpio binding; gpio connection to WDT reset pin.- hw_algo: The algorithm used by the driver. Should...
原本打算参考 sunxi-wdt.c 的框架,利用定时器自己写一个,无意中发现内核已经有 gpio_wdt.c 驱动程序,其原理也是通过内核定时器实现喂狗。因其使用了 of_get_gpio_flags() 接口获取 GPIO 信息,和 gpio-keys.c 驱动一样,该接口存在内存越界的问题,需要略作修改才能使用。 内核配置 内核版本:Linux 4.9 make A...
// 应用层进行喂狗的回调: 对应应用层 WDIOC_KEEPALIVEstaticintgpio_wdt_ping(struct watchdog_device *wdd){// 更新最后一次喂狗时间structgpio_wdt_priv*priv=watchdog_get_drvdata(wdd);priv->last_jiffies = jiffies;return0;} C++ staticvoidgpio_wdt_hwping(unsignedlongdata){structwatchdog_device*wdd...
gpio_install_isr_service configure gpio pins gpio_isr_handler_add Guru Meditation Error: Core 0 panic'ed (Interrupt wdt timeout on CPU0). Core 0 register dump: PC : 0x400832e4 PS : 0x00050034 A0 : 0x40082b24 A1 : 0x3ffb0b80 0x400832e4: gpio_isr_loop at C:/Dev/espressif/esp-...
Re: ESP12f not loading sketch after WDT GPIO00 oscillating 2 #94233 By Inq720 - Sat Apr 09, 2022 7:11 pm I've been doing a lot of work with the ESP8266 flash memory. I see you are far more hardware savvy than I... so I wanted to ask if you have your own hardware EEPROM...