From: Martin Mares <mj@ucw.cz>
Date: Sun, 6 Feb 2022 16:01:32 +0000 (+0100)
Subject: usart1 example: fix RXD direction
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=eba654c1e688ec99fbaa2ee652b48173af0070be;p=home-hw.git

usart1 example: fix RXD direction
---

diff --git a/protab/usart1/usart.c b/protab/usart1/usart.c
index cca6770..cbf82f0 100644
--- a/protab/usart1/usart.c
+++ b/protab/usart1/usart.c
@@ -13,7 +13,7 @@ int main(void)
 	gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO13);
 
 	// PA10 = RX1, PA9 = TX1
-	gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO10);
+	gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO10);
 	gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO9);
 
 	usart_set_baudrate(USART1, 115200);