4G04_MCU/driver/hal_uart.h

#ifndef __HAL_UART_H__
#define __HAL_UART_H__

#include "hc32_ll_usart.h"
#include "hc32_ll_gpio.h"
#include "hc32_ll_fcg.h"
#include "hc32_ll_interrupts.h"
#include "hc32_ll_tmr0.h"
#include "hc32_ll_tmr4.h"
#include "ring_buf.h"
#include "hc32_ll_aos.h"
 
 
#define RS485_TX_ENABLE  GPIO_ResetPins(GPIO_PORT_A, GPIO_PIN_08) 
#define RS485_TX_DISABLE GPIO_SetPins(GPIO_PORT_A, GPIO_PIN_08)  

#define LL_PERIPH_SEL                   (LL_PERIPH_GPIO | LL_PERIPH_FCG | LL_PERIPH_PWC_CLK_RMU | \
                                         LL_PERIPH_EFM | LL_PERIPH_SRAM)

/* DMA definition */
#define RX_DMA_UNIT                     (CM_DMA1)
#define RX_DMA_CH                       (DMA_CH0)
#define RX_DMA_FCG_ENABLE()             (FCG_Fcg0PeriphClockCmd(FCG0_PERIPH_DMA1, ENABLE))
#define RX_DMA_TRIG_SEL                 (AOS_DMA1_0)
#define RX_DMA_TRIG_EVT_SRC             (EVT_SRC_USART2_RI)
#define RX_DMA_RECONF_TRIG_SEL          (AOS_DMA_RC)
#define RX_DMA_RECONF_TRIG_EVT_SRC      (EVT_SRC_AOS_STRG)
#define RX_DMA_TC_INT                   (DMA_INT_TC_CH0)
#define RX_DMA_TC_FLAG                  (DMA_FLAG_TC_CH0)
#define RX_DMA_TC_IRQn                  (INT000_IRQn)
#define RX_DMA_TC_INT_SRC               (INT_SRC_DMA1_TC0)

#define TX_DMA_UNIT                     (CM_DMA2)
#define TX_DMA_CH                       (DMA_CH0)
#define TX_DMA_FCG_ENABLE()             (FCG_Fcg0PeriphClockCmd(FCG0_PERIPH_DMA2, ENABLE))
#define TX_DMA_TRIG_SEL                 (AOS_DMA2_0)
#define TX_DMA_TRIG_EVT_SRC             (EVT_SRC_USART2_TI)
#define TX_DMA_TC_INT                   (DMA_INT_TC_CH0)
#define TX_DMA_TC_FLAG                  (DMA_FLAG_TC_CH0)
#define TX_DMA_TC_IRQn                  (INT001_IRQn)
#define TX_DMA_TC_INT_SRC               (INT_SRC_DMA2_TC0)

/* Timer0 unit & channel definition */
#define TMR0_UNIT                       (CM_TMR0_1)
#define TMR0_CH                         (TMR0_CH_B)
#define TMR0_FCG_ENABLE()               (FCG_Fcg2PeriphClockCmd(FCG2_PERIPH_TMR0_1, ENABLE))



///* USART RX/TX pin definition */
#define USART_RX_PORT                   (GPIO_PORT_A)   /* PA10: USART2_RX */
#define USART_RX_PIN                    (GPIO_PIN_10)
#define USART_RX_GPIO_FUNC              (GPIO_FUNC_37)

#define USART_TX_PORT                   (GPIO_PORT_A)   /* PA9: USART2_TX */
#define USART_TX_PIN                    (GPIO_PIN_09)
#define USART_TX_GPIO_FUNC              (GPIO_FUNC_36)

/* USART unit definition */
#define USART_UNIT                      (CM_USART2)
#define USART_FCG_ENABLE()              (FCG_Fcg3PeriphClockCmd(FCG3_PERIPH_USART2, ENABLE))

/* USART baudrate definition */
#define USART_BAUDRATE                  (115200UL)

/* USART timeout bits definition */
#define USART_TIMEOUT_BITS              (2000U)

/* USART interrupt definition */
#define USART_TX_CPLT_IRQn              (INT002_IRQn)
#define USART_TX_CPLT_INT_SRC           (INT_SRC_USART2_TCI)

#define USART_RX_ERR_IRQn               (INT003_IRQn)
#define USART_RX_ERR_INT_SRC            (INT_SRC_USART2_EI)

#define USART_RX_TIMEOUT_IRQn           (INT004_IRQn)
#define USART_RX_TIMEOUT_INT_SRC        (INT_SRC_USART2_RTO)

/* Application frame length max definition */
#define APP_FRAME_LEN_MAX               (500U)

void bsp_uart2_init(void);
void test_task2(void *pvParameters);

int32_t rs485_send_data(const void *pvBuf,uint32_t u32Len);
#endif