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add GD32V TencentOS tiny EVB_LX board

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add GD32V TencentOS tiny EVB_LX board
This commit is contained in:
supowang
2019-12-16 11:32:03 +08:00
parent b2983383bb
commit d0f61b43a5
20 changed files with 2122 additions and 0 deletions
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66
board/TencentOS_tiny_EVB_LX/BSP/Src/usart.c Normal file
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#include "gd32vf103.h"
#include "usart.h"
void usart0_init(int baud)
{
/* enable GPIO clock */
rcu_periph_clock_enable(RCU_GPIOA);
/* enable USART0 clock */
rcu_periph_clock_enable(RCU_USART0);
/* connect port to USART0_Tx */
gpio_init(USART0_GPIO_PORT, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, USART0_GPIO_TX_PIN);
/* connect port to USART0_Rx */
gpio_init(USART0_GPIO_PORT, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, USART0_GPIO_RX_PIN);
/* 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);
}
void uart3_init(int baud)
{
/* enable GPIO clock */
rcu_periph_clock_enable(RCU_GPIOC);
/* enable USART0 clock */
rcu_periph_clock_enable(RCU_UART3);
/* connect port to USART0_Tx */
gpio_init(USART3_GPIO_PORT, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, USART3_GPIO_TX_PIN);
/* connect port to USART0_Rx */
gpio_init(USART3_GPIO_PORT, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, USART3_GPIO_RX_PIN);
/* USART0 configure */
usart_deinit(UART3);
usart_baudrate_set(UART3, baud);
usart_word_length_set(UART3, USART_WL_8BIT);
usart_stop_bit_set(UART3, USART_STB_1BIT);
usart_parity_config(UART3, USART_PM_NONE);
usart_hardware_flow_rts_config(UART3, USART_RTS_DISABLE);
usart_hardware_flow_cts_config(UART3, USART_CTS_DISABLE);
usart_receive_config(UART3, USART_RECEIVE_ENABLE);
usart_transmit_config(UART3, USART_TRANSMIT_ENABLE);
usart_enable(UART3);
}
int _put_char(int ch)
{
usart_data_transmit(UART3, (uint8_t) ch );
while ( usart_flag_get(UART3, USART_FLAG_TBE)== RESET){
}
return ch;
}