From 61ddbcf2cde06cc92c4735b78a890a01d19eef43 Mon Sep 17 00:00:00 2001
From: yelvlab <wanghao19950516@gmail.com>
Date: Thu, 3 Apr 2025 00:59:48 +0800
Subject: [PATCH] RS485 hardware function OK!

---
 src/main.c  | 1 +
 src/rs485.c | 8 ++++----
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/main.c b/src/main.c
index 6cf02e9..b860e95 100644
--- a/src/main.c
+++ b/src/main.c
@@ -48,6 +48,7 @@ int main(void) {
     while (1) {
         delay_ms(99);
         fwdgt_counter_reload();
+        printf("Hello World!\n");
     }
 }
 
diff --git a/src/rs485.c b/src/rs485.c
index 24da43b..9021a89 100644
--- a/src/rs485.c
+++ b/src/rs485.c
@@ -20,7 +20,7 @@ void rs485_config(void) {
     /* configure RS485 EN Pin */
     gpio_mode_set(RS485_GPIO_PORT, GPIO_MODE_AF, GPIO_PUPD_NONE, RS485_EN_PIN);
     gpio_output_options_set(RS485_GPIO_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, RS485_EN_PIN);
-    gpio_bit_write(RS485_GPIO_PORT, RS485_EN_PIN, SET);
+    // gpio_bit_write(RS485_GPIO_PORT, RS485_EN_PIN, SET);
 
     /* USART configure */
     usart_deinit(RS485_PHY);
@@ -28,8 +28,8 @@ void rs485_config(void) {
     // usart_parity_config(RS485_PHY, USART_PM_NONE);
     // usart_word_length_set(RS485_PHY, USART_WL_8BIT);
     // usart_stop_bit_set(RS485_PHY, USART_STB_1BIT);
-    // usart_receive_config(RS485_PHY, USART_RECEIVE_ENABLE);
-    // usart_transmit_config(RS485_PHY, USART_TRANSMIT_ENABLE);
+    usart_receive_config(RS485_PHY, USART_RECEIVE_ENABLE);
+    usart_transmit_config(RS485_PHY, USART_TRANSMIT_ENABLE);
 
     usart_driver_assertime_config(RS485_PHY, 0x01);
     usart_driver_deassertime_config(RS485_PHY, 0x01);
@@ -37,8 +37,8 @@ void rs485_config(void) {
     // usart_depolarity_config(USART0, USART_DEP_HIGH);
     // usart_depolarity_config(USART0, USART_DEP_LOW);
 
-    // usart_enable(RS485_PHY);
     usart_rs485_driver_enable(RS485_PHY);
+    usart_enable(RS485_PHY);
 
     nvic_irq_enable(USART0_IRQn, 0);
     usart_interrupt_enable(RS485_PHY, USART_INT_RBNE);