tweak the UART in use message on RP2040

Author: Neradoc

locale/circuitpython.pot

@@ -438,7 +438,6 @@ msgid "All SPI peripherals are in use"
 msgstr ""
 
 #: ports/espressif/common-hal/busio/UART.c ports/nrf/common-hal/busio/UART.c
-#: ports/raspberrypi/common-hal/busio/UART.c
 msgid "All UART peripherals are in use"
 msgstr ""
 
@@ -2149,6 +2148,10 @@ msgstr ""
 msgid "UART init"
 msgstr ""
 
+#: ports/raspberrypi/common-hal/busio/UART.c
+msgid "UART peripheral in use"
+msgstr ""
+
 #: ports/stm/common-hal/busio/UART.c
 msgid "UART re-init"
 msgstr ""

ports/raspberrypi/common-hal/busio/UART.c

@@ -111,7 +111,7 @@ void common_hal_busio_uart_construct(busio_uart_obj_t *self,
     uint8_t uart_id = ((((tx != NULL) ? tx->number : rx->number) + 4) / 8) % NUM_UARTS;
 
     if (uart_status[uart_id] != STATUS_FREE) {
-        mp_raise_RuntimeError(translate("All UART peripherals are in use"));
+        mp_raise_ValueError(translate("UART peripheral in use"));
     }
     // These may raise exceptions if pins are already in use.
     self->tx_pin = pin_init(uart_id, tx, 0);