Part Number:AM5728
一.问题的描述
问题:AM5728低概率碰到死机问题
芯片:TI AM5728
5728 SDK版本:03.00.00.04;
linux内核版本:4.4.12
出现概率:极低概率出现,没找到好的高概率或必现场景(5728的DSP音频编解码 或 5728待机时,都会出现死机)
二 述求:
请问贵公司是否有碰到AM5728死机问题,有什么解决方案?
三.附加说明:我司监测和判断am5728的死机的方式
我司判断5728死机的方式:通过看门狗判断5728死机,当看门狗超时后触发5728的重启
1、在dra7.dtsi增加这一行(看门狗超时时间为15秒):timeout-sec = <15>;
board-support/linux-4.4.12+gitAUTOINC+3639bea54a-g3639bea54a/arch/arm/boot/dts/dra7.dtsi
2、创建并启动看门狗线程,执行喂狗操作
board-support/linux-4.4.12+gitAUTOINC+3639bea54a-g3639bea54a/drivers/watchdog/omap_wdt.c
Links:
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