wes3 commented on a change in pull request #2035: [WIP] DA1469x UART rx pullup
URL: https://github.com/apache/mynewt-core/pull/2035#discussion_r334071840
##########
File path: hw/mcu/dialog/da1469x/src/hal_uart.c
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@@ -463,6 +477,34 @@ hal_uart_config(int port, int32_t baudrate, uint8_t
databits, uint8_t stopbits,
if (!baudrate_cfg) {
return SYS_ENOTSUP;
}
+
+ /* Enable pullup if configured */
+ if (uart->cfg->rx_pullup) {
+ mcu_gpio_set_pin_function(uart->cfg->pin_rx,
MCU_GPIO_MODE_INPUT_PULLUP,
+ uart->rx_pin_func);
+ }
Review comment:
Debated putting it in hal_uart_init() as opposed to config and close but
since hal_uart_init is only called once (typically) decided to put in
hal_uart_config(). This would allow an app to close the uart, repurpose that
pin, and not have to call hal_uart_init again.
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