Hello Ran,
Am 25.08.2015 um 22:03 schrieb Ran Shalit:
Hello,
I need to do some periodic very simple task during u-boot prompt
(while u-boot wais for commands). The task is very simple, just
writing into a watchdog refresh register.
But it seems that it's very difficult to "hack" u-boot with such periodic task.
I see that main loop is waiting in loop for characters in a call to
getc, which is a blocking command. If it was non-blocking, it might
have help me. I'm not sure if there is a way to replace the getc with
a non-blocking call.
Does anyone have any idea if there is some simple way to do periodic
task in u-boot ?
As you want to trigger a watchdog, have a look at
u-boot:/drivers/watchdog
and grep the U-Boot code for
CONFIG_WATCHDOG
CONFIG_HW_WATCHDOG
bye,
Heiko
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