Hi,
Tried to use Connectivity bridge app on a custom board based on NRF52840 and it seems that the UART-USB interface works initially, but after a while it gets stuck at communication level. The goal is to use it in the same way USBD_CDC_ACM sample. Opening a console to that stuck PORT makes it work again for a while. The CDC_ACM / UART control lines are enabled and they should work normally, since, on the same board, the USBD_CDC_ACM sample does not have this problem.
Configuration:
# Features CONFIG_BRIDGE_MSC_ENABLE=n CONFIG_BRIDGE_BLE_ENABLE=n
Overlay file:
&uart1 {
compatible = "nordic,nrf-uarte";
status = "okay";
};
&zephyr_udc0 {
cdc_acm_uart0: cdc_acm_uart0 {
compatible = "zephyr,cdc-acm-uart";
};
cdc_acm_uart1: cdc_acm_uart1 {
compatible = "zephyr,cdc-acm-uart";
};
rtt0: rtt_chan0 {
compatible = "segger,rtt-uart";
status = "okay";
};
};
/ {
chosen {
zephyr,console = &rtt0;
zephyr,shell-uart = &rtt0;
zephyr,uart-mcumgr = &rtt0;
};
};
I would like to know what is the cause of this behaviour.
Regards.
