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fix typo

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This commit is contained in:
acevest
2019-10-04 12:33:40 +08:00
parent 3c88162700
commit 2e225ac46d
1 changed files with 14 additions and 16 deletions
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30
board/GD32VF103C_START/BSP/Src/usart.c
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@@ -2,29 +2,27 @@
#include "usart.h"
void usart0_init(int baud)
{
uint32_t com = USART0;
/* enable GPIO clock */
rcu_periph_clock_enable(RCU_GPIOA);
/* enable USART clock */
/* enable USART0 clock */
rcu_periph_clock_enable(RCU_USART0);
/* connect port to USARTx_Tx */
/* connect port to USART0_Tx */
gpio_init(USART0_GPIO_PORT, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, USART0_GPIO_TX_PIN);
/* connect port to USARTx_Rx */
/* connect port to USART0_Rx */
gpio_init(USART0_GPIO_PORT, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, USART0_GPIO_RX_PIN);
/* USART configure */
usart_deinit(com);
usart_baudrate_set(com, baud);
usart_word_length_set(com, USART_WL_8BIT);
usart_stop_bit_set(com, USART_STB_1BIT);
usart_parity_config(com, USART_PM_NONE);
usart_hardware_flow_rts_config(com, USART_RTS_DISABLE);
usart_hardware_flow_cts_config(com, USART_CTS_DISABLE);
usart_receive_config(com, USART_RECEIVE_ENABLE);
usart_transmit_config(com, USART_TRANSMIT_ENABLE);
usart_enable(com);
/* USART0 configure */
usart_deinit(USART0);
usart_baudrate_set(USART0, baud);
usart_word_length_set(USART0, USART_WL_8BIT);
usart_stop_bit_set(USART0, USART_STB_1BIT);
usart_parity_config(USART0, USART_PM_NONE);
usart_hardware_flow_rts_config(USART0, USART_RTS_DISABLE);
usart_hardware_flow_cts_config(USART0, USART_CTS_DISABLE);
usart_receive_config(USART0, USART_RECEIVE_ENABLE);
usart_transmit_config(USART0, USART_TRANSMIT_ENABLE);
usart_enable(USART0);
}