Toolchain v2.70, SDK v2.7.0, VS Code, Windows
I am trying to enable the watchdog in my application, and I can successfully locate the device node and add a timeout, but when I call wdt_setup, it returns EBUSY. According to the docs, this means that it has already been setup. But I have not configured it, so I am at a loss as to how this is happening. I am building for FOTA, so I guess there is a boot loader running ahead of my code. Could that be setting up the watchdog and stopping me using it in my application?
The code is pretty simple:
struct device const *wdt = DEVICE_DT_GET(DT_NODELABEL(wdt0));
if( wdt ) {
struct wdt_timeout_cfg cfg = {};
cfg.flags = WDT_FLAG_RESET_SOC;
cfg.window.min = 0u;
cfg.window.max = 1000u;
int chan = wdt_install_timeout(wdt, &cfg);
if( chan >= 0 ) {
int r = wdt_setup(wdt, WDT_OPT_PAUSE_HALTED_BY_DBG);
if( !r ) {
for(;;) {
k_sleep(K_MSEC(500));
wdt_feed(wdt, chan);
}
}
}
}
Any ideas would be appreciated...
