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-rw-r--r--ports/atmel-samd/common-hal/busio/UART.c2
-rw-r--r--ports/esp8266/common-hal/busio/UART.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/ports/atmel-samd/common-hal/busio/UART.c b/ports/atmel-samd/common-hal/busio/UART.c
index 10618d1ce..b4539eb93 100644
--- a/ports/atmel-samd/common-hal/busio/UART.c
+++ b/ports/atmel-samd/common-hal/busio/UART.c
@@ -55,7 +55,7 @@ static void usart_async_rxc_callback(const struct usart_async_descriptor *const
void common_hal_busio_uart_construct(busio_uart_obj_t *self,
const mcu_pin_obj_t * tx, const mcu_pin_obj_t * rx, uint32_t baudrate,
uint8_t bits, uart_parity_t parity, uint8_t stop, mp_float_t timeout,
- uint8_t receiver_buffer_size) {
+ uint16_t receiver_buffer_size) {
Sercom* sercom = NULL;
uint8_t sercom_index = 255; // Unset index
uint32_t rx_pinmux = 0;
diff --git a/ports/esp8266/common-hal/busio/UART.c b/ports/esp8266/common-hal/busio/UART.c
index f10e3dc55..e72dce639 100644
--- a/ports/esp8266/common-hal/busio/UART.c
+++ b/ports/esp8266/common-hal/busio/UART.c
@@ -40,7 +40,7 @@ extern UartDevice UartDev;
void common_hal_busio_uart_construct(busio_uart_obj_t *self,
const mcu_pin_obj_t * tx, const mcu_pin_obj_t * rx, uint32_t baudrate,
uint8_t bits, uart_parity_t parity, uint8_t stop, mp_float_t timeout,
- uint8_t receiver_buffer_size) {
+ uint16_t receiver_buffer_size) {
if (rx != mp_const_none || tx != &pin_GPIO2) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, translate("Only tx supported on UART1 (GPIO2).")));
}