Photonicat TTL,Watchdog,Recovery说明: Difference between revisions
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==mcu watchdog disable位置== | ==mcu watchdog disable位置== | ||
默认有watchdog,在没有喂狗的情况下会重启。短路即可关闭狗。位置如下: | 默认有watchdog,在没有喂狗的情况下会重启。短路即可关闭狗。位置如下: | ||
<br> | |||
[[image:pcba_mcu.png|800px]] | [[image:pcba_mcu.png|800px]] | ||
== | ==通过 软件 关闭喂狗== | ||
===user level 关闭喂狗=== | ===user level 关闭喂狗=== | ||
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====uboot 关闭喂狗=== | ====uboot 关闭喂狗=== | ||
参考 ttps://github.com/photonicat/rockchip_rk3568_linux_mainline/blob/master/patches/u-boot/314-rockchip-rk3568-Add-support-for-photonicat.patch | 参考 ttps://github.com/photonicat/rockchip_rk3568_linux_mainline/blob/master/patches/u-boot/314-rockchip-rk3568-Add-support-for-photonicat.patch | ||
==recovery button位置== | ==recovery button位置== | ||
USB烧录需要使用recovery button,位置如下: | USB烧录需要使用recovery button,位置如下: | ||
[[image:pcba_watchdog.png|800px]] | [[image:pcba_watchdog.png|800px]] |
Revision as of 11:56, 18 August 2023
ttl debug位置
为了方便调试,PCBA中预留了TTL的UART,console debug,速率: 1500000
此处为3个pin,需要自行焊接一个调试口,可以使用 picocom / PuTTY
链接,参数: 1500000bps, 8N1, No Flow Control.
mcu watchdog disable位置
默认有watchdog,在没有喂狗的情况下会重启。短路即可关闭狗。位置如下:
通过 软件 关闭喂狗
user level 关闭喂狗
参考 https://github.com/photonicat/rockchip_rk3568_openwrt
=uboot 关闭喂狗
参考 ttps://github.com/photonicat/rockchip_rk3568_linux_mainline/blob/master/patches/u-boot/314-rockchip-rk3568-Add-support-for-photonicat.patch