Hi,
I just found that upgrade the net core need to set CONFIG_SERIAL=y and enable the UART in dts file, otherwise, it hangs on the network_core_pcd_cmdset function when upgrading the net core FW, pcd_fw_copy_status_get() always returns 0. Is this expected? if yes, I would like to disable the net core's UART to save the current consumption, any workarounds?
static int network_core_pcd_cmdset(const void *src_addr, size_t len, bool wait)
{
int err;
/* Ensure that the network core is turned off */
nrf_reset_network_force_off(NRF_RESET, true);
err = pcd_cmd_write(src_addr, len, PCD_NET_CORE_APP_OFFSET);
if (err != 0) {
LOG_INF("Error while writing PCD cmd: %d", err);
return err;
}
nrf_reset_network_force_off(NRF_RESET, false);
LOG_INF("Turned on network core");
if (!wait) {
return 0;
}
do {
/* Wait for 1 second to avoid issue where network core
* is unable to write to shared RAM.
*/
k_busy_wait(1 * USEC_PER_SEC);
err = pcd_fw_copy_status_get();
} while (err == PCD_STATUS_COPY);
if (err == PCD_STATUS_COPY_FAILED) {
LOG_ERR("Network core update failed");
return err;
}
nrf_reset_network_force_off(NRF_RESET, true);
LOG_INF("Turned off network core");
network_core_pcd_tidy();
return 0;
}
