nrf/mphalport: Use wfi to save power while waiting at the UART REPL.
@@ -58,6 +58,7 @@ int mp_hal_stdin_rx_chr(void) {
if (MP_STATE_PORT(board_stdio_uart) != NULL && uart_rx_any(MP_STATE_PORT(board_stdio_uart))) {
return uart_rx_char(MP_STATE_PORT(board_stdio_uart));
}
+ __WFI();
}
return 0;
