0904_PT/BSP/Uart.c

#include "includes.h"
#include "Uart.h"


/////////////////////////////////////////////////////////////////////////////

uint8_t usart0TX_Buffer[USART0_TX_SIZE] = {0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08};
uint8_t usart0RX_Buffer[USART0_RX_SIZE] = {0};
void dma_init_uart0(void)
{
    dma_parameter_struct dma_init_Usart0_TX;
    dma_parameter_struct dma_init_Usart0_RX;

    rcu_periph_clock_enable(RCU_DMA0);

    dma_deinit(DMA0, DMA_CH3);
    dma_deinit(DMA0, DMA_CH4);

    /* initialize DMA0 channel3(Usart0_TX) */
    dma_init_Usart0_TX.direction = DMA_MEMORY_TO_PERIPHERAL;
    dma_init_Usart0_TX.memory_addr = (uint32_t)usart0TX_Buffer;
    dma_init_Usart0_TX.memory_inc = DMA_MEMORY_INCREASE_ENABLE;
    dma_init_Usart0_TX.memory_width = DMA_MEMORY_WIDTH_8BIT;
    dma_init_Usart0_TX.number = (uint32_t)USART0_TX_SIZE;
    dma_init_Usart0_TX.periph_addr = (uint32_t)(&USART_DATA(USART0));
    dma_init_Usart0_TX.periph_inc = DMA_PERIPH_INCREASE_DISABLE;
    dma_init_Usart0_TX.periph_width = DMA_PERIPHERAL_WIDTH_8BIT;
    dma_init_Usart0_TX.priority = DMA_PRIORITY_LOW;
    dma_init(DMA0, DMA_CH3, &dma_init_Usart0_TX);
    dma_circulation_disable(DMA0, DMA_CH3);

    /* initialize DMA0 channel4(Usart0_RX) */
    dma_init_Usart0_RX.direction = DMA_PERIPHERAL_TO_MEMORY;
    dma_init_Usart0_RX.memory_addr = (uint32_t)usart0RX_Buffer;
    dma_init_Usart0_RX.memory_inc = DMA_MEMORY_INCREASE_ENABLE;
    dma_init_Usart0_RX.memory_width = DMA_MEMORY_WIDTH_8BIT;
    dma_init_Usart0_RX.number = (uint32_t)USART0_RX_SIZE;
    dma_init_Usart0_RX.periph_addr = (uint32_t)(&USART_DATA(USART0));
    dma_init_Usart0_RX.periph_inc = DMA_PERIPH_INCREASE_DISABLE;
    dma_init_Usart0_RX.periph_width = DMA_PERIPHERAL_WIDTH_8BIT;
    dma_init_Usart0_RX.priority = DMA_PRIORITY_HIGH;//DMA_PRIORITY_LOW;
    dma_init(DMA0, DMA_CH4, &dma_init_Usart0_RX);
    dma_circulation_disable(DMA0, DMA_CH4);//circulate or not makes no difference

    dma_memory_to_memory_disable(DMA0,DMA_CH3);
    dma_memory_to_memory_disable(DMA0,DMA_CH4);

    /* enable all DMA channels you need */
    dma_channel_enable(DMA0,DMA_CH4);
    dma_channel_disable(DMA0,DMA_CH3);
}

void usart0_config(void)
{
    /* enable GPIO clock */
    rcu_periph_clock_enable(RCU_GPIOA);

    /* enable USART clock */
    rcu_periph_clock_enable(RCU_USART0);

    /* connect port to USARTx_Tx */
    gpio_init(GPIOA, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_9);

    /* connect port to USARTx_Rx */
    gpio_init(GPIOA, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, GPIO_PIN_10);

    /* USART configure */
    usart_deinit(USART0);
    usart_word_length_set(USART0, USART_WL_8BIT);
    usart_stop_bit_set(USART0, USART_STB_1BIT);
    usart_parity_config(USART0, USART_PM_NONE);
    usart_baudrate_set(USART0, 115200U);
    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);

    /* config USARTx_TX transmit by DMA */
    usart_dma_transmit_config(USART0,USART_DENT_ENABLE);
    usart_dma_receive_config(USART0,USART_DENR_ENABLE);

    /* USART1 IRQ set */

    nvic_irq_enable(USART0_IRQn, 1, 0);
    // nvic_irq_enable(DMA0_Channel6_IRQn, 1, 1);
    usart_interrupt_enable(USART0, USART_INT_IDLE);
//    usart_interrupt_enable(USART0, USART_INT_TC); // 使能发送完成中断


    usart_enable(USART0);
}

void USART0_IRQHandler(void)
{
    volatile uint8_t len = 0;
    if((RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_IDLE)) \
        && (RESET != usart_flag_get(USART0, USART_FLAG_IDLEF)))
    {
        usart_interrupt_flag_clear(USART0, USART_INT_FLAG_IDLE);//
        usart_flag_clear(USART0, USART_FLAG_IDLEF);
        dma_channel_disable(DMA0, DMA_CH4);
        usart_data_receive(USART0);
        len = USART0_RX_SIZE - dma_transfer_number_get(DMA0,DMA_CH4);
        if(len>5)
			En_Queue(uart0_rx_sq,usart0RX_Buffer,len,len);//数据入队，可多次调用
        dma_memory_address_config(DMA0,DMA_CH4,(uint32_t)usart0RX_Buffer);
        dma_transfer_number_config(DMA0,DMA_CH4, USART0_RX_SIZE);/* reset DMA_Channel CNT */
        dma_channel_enable(DMA0,DMA_CH4);/* enable USART1_RX DMA_Channel */
    }
}

/*------------------------------------------485----------------------------------------*/
void RS485_USART_IRQHandler(void)
{
    volatile uint8_t len = 0;
    if((RESET != usart_interrupt_flag_get(RS485_USARTx, USART_INT_FLAG_IDLE)) \
        && (RESET != usart_flag_get(RS485_USARTx, USART_FLAG_IDLEF)))
    {
        usart_interrupt_flag_clear(RS485_USARTx, USART_INT_FLAG_IDLE);//
        usart_flag_clear(RS485_USARTx, USART_FLAG_IDLEF);
        dma_channel_disable(RS485_DMAx, RS485_DMA_CH_RX);
        usart_data_receive(RS485_USARTx);
        len = USART3_RX_SIZE - dma_transfer_number_get(RS485_DMAx,RS485_DMA_CH_RX);
        if(len>5)
			En_Queue(uart3_rx_sq,usart485RX_Buffer,len,len);//数据入队，可多次调用
//            fifo_write(&g_rxfifo,usart485RX_Buffer,len);
        dma_memory_address_config(RS485_DMAx, RS485_DMA_CH_RX,(uint32_t)usart485RX_Buffer);
        dma_transfer_number_config(RS485_DMAx, RS485_DMA_CH_RX, USART3_RX_SIZE);/* reset DMA_Channel CNT */
        dma_channel_enable(RS485_DMAx, RS485_DMA_CH_RX);/* enable USART1_RX DMA_Channel */
//        g_uart485.bRcv = 1;

    }
    else if(RESET != usart_interrupt_flag_get(RS485_USARTx,USART_INT_FLAG_TC)) { // 发送完成中断
        usart_interrupt_flag_clear(RS485_USARTx, USART_INT_FLAG_TC);//
        usart_flag_clear(RS485_USARTx, USART_FLAG_TC);
//        g_uart485.bSdFinish = 1;
//        gpio_bit_reset(GPIOC,  GPIO_PIN_12);
		RS485_RX();
    }
}

void RS485_DMA0_CH_TX_IRQHandler(void)//usart1 发送dma
{
    if(dma_interrupt_flag_get(RS485_DMAx, RS485_DMA_CH_TX, DMA_INT_FLAG_FTF)){
        dma_interrupt_flag_clear(RS485_DMAx, RS485_DMA_CH_TX, DMA_INT_FLAG_G);
        //g_uart485.bSdFinish = 1;
        //gpio_bit_reset(GPIOC,  GPIO_PIN_12);
        usart_interrupt_enable(RS485_USARTx, USART_INT_TC); // 使能接收完成中断
    }
}

void USART1_IRQHandler(void)
{
	RS485_USART_IRQHandler();
}

void DMA0_Channel6_IRQHandler(void)
{
	RS485_DMA0_CH_TX_IRQHandler();
}



uint8_t usart485TX_Buffer[USART3_TX_SIZE] = {0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08};
uint8_t usart485RX_Buffer[USART3_RX_SIZE] = {0};
//uart485Info_t g_uart485;

void dam_init_uart_485(void)
{
    dma_parameter_struct dma_init_Usart3_TX;
    dma_parameter_struct dma_init_Usart3_RX;

    rcu_periph_clock_enable(RS485_DMA_RCU);

    dma_deinit(RS485_DMAx, RS485_DMA_CH_RX); // RX
    dma_deinit(RS485_DMAx, RS485_DMA_CH_TX); // TX

    /* initialize DMA1 channel4(Uart3_TX) */
    dma_init_Usart3_TX.direction = DMA_MEMORY_TO_PERIPHERAL;
    dma_init_Usart3_TX.memory_addr = (uint32_t)usart485TX_Buffer;
    dma_init_Usart3_TX.memory_inc = DMA_MEMORY_INCREASE_ENABLE;
    dma_init_Usart3_TX.memory_width = DMA_MEMORY_WIDTH_8BIT;
    dma_init_Usart3_TX.number = (uint32_t)USART3_TX_SIZE;
    dma_init_Usart3_TX.periph_addr = (uint32_t)(&USART_DATA(RS485_USARTx));
    dma_init_Usart3_TX.periph_inc = DMA_PERIPH_INCREASE_DISABLE;
    dma_init_Usart3_TX.periph_width = DMA_PERIPHERAL_WIDTH_8BIT;
    dma_init_Usart3_TX.priority = DMA_PRIORITY_LOW;
    dma_init(RS485_DMAx, RS485_DMA_CH_TX, &dma_init_Usart3_TX);
    dma_circulation_disable(RS485_DMAx, RS485_DMA_CH_TX);

    /* initialize DMA1 channel2(Uart3_RX) */
    dma_init_Usart3_RX.direction = DMA_PERIPHERAL_TO_MEMORY;
    dma_init_Usart3_RX.memory_addr = (uint32_t)usart485RX_Buffer;
    dma_init_Usart3_RX.memory_inc = DMA_MEMORY_INCREASE_ENABLE;
    dma_init_Usart3_RX.memory_width = DMA_MEMORY_WIDTH_8BIT;
    dma_init_Usart3_RX.number = (uint32_t)USART3_RX_SIZE;
    dma_init_Usart3_RX.periph_addr = (uint32_t)(&USART_DATA(RS485_USARTx));
    dma_init_Usart3_RX.periph_inc = DMA_PERIPH_INCREASE_DISABLE;
    dma_init_Usart3_RX.periph_width = DMA_PERIPHERAL_WIDTH_8BIT;
    dma_init_Usart3_RX.priority = DMA_PRIORITY_LOW;
    dma_init(RS485_DMAx, RS485_DMA_CH_RX, &dma_init_Usart3_RX);
    dma_circulation_disable(RS485_DMAx, RS485_DMA_CH_RX);//circulate or not makes no difference

    dma_memory_to_memory_disable(RS485_DMAx,RS485_DMA_CH_RX);
    dma_memory_to_memory_disable(RS485_DMAx,RS485_DMA_CH_TX);

    /* enable all DMA channels you need */
    dma_channel_enable(RS485_DMAx,RS485_DMA_CH_RX);
    dma_channel_disable(RS485_DMAx,RS485_DMA_CH_TX);
}
/*------------------------------------------------------------------------------------
 *  485初始化 UART3
 * -----------------------------------------------------------------------------------*/
void usart_485_dma_init(void)
{
    rcu_periph_clock_enable(RS485_GPIO_RCU);/* enable GPIO clock */
    rcu_periph_clock_enable(RCU_AF);

    rcu_periph_clock_enable(RS483_USART_RCU);/* enable USART clock */

    gpio_init(RS485_GPIOx, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, RS485_GPIO_PIN_TX);/* connect port to USARTx_Tx */
    gpio_init(RS485_GPIOx, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, RS485_GPIO_PIN_RX);/* connect port to USARTx_Rx */

    //设置rs485芯片，收发模式控制引脚 PC12，低电平接收，高电平发送，初始化为接收模式
    gpio_init(RS485_GPIOx, GPIO_MODE_OUT_PP, GPIO_OSPEED_50MHZ, RS485_GPIO_PIN_CTL);
//    gpio_bit_reset(GPIOC,  GPIO_PIN_12);
	RS485_RX();


    /* USART configure */
    usart_deinit(RS485_USARTx);
    usart_word_length_set(RS485_USARTx, USART_WL_8BIT);
    usart_stop_bit_set(RS485_USARTx, USART_STB_1BIT);
    usart_parity_config(RS485_USARTx, USART_PM_NONE);
    usart_baudrate_set(RS485_USARTx, 115200U);
    usart_hardware_flow_rts_config(RS485_USARTx, USART_RTS_DISABLE);
    usart_hardware_flow_cts_config(RS485_USARTx, USART_CTS_DISABLE);
    usart_receive_config(RS485_USARTx, USART_RECEIVE_ENABLE);
    usart_transmit_config(RS485_USARTx, USART_TRANSMIT_ENABLE);
    usart_enable(RS485_USARTx);

    /* config USARTx_TX transmit by DMA */
    usart_dma_transmit_config(RS485_USARTx,USART_DENT_ENABLE);
    usart_dma_receive_config(RS485_USARTx,USART_DENR_ENABLE);

    /* UART3 IRQ set */
    nvic_irq_enable(RS485_USART_IRQ, 4, 0);
    usart_interrupt_enable(RS485_USARTx, USART_INT_FLAG_IDLE);

    dma_interrupt_enable(RS485_DMAx,RS485_DMA_CH_TX,DMA_INT_FTF); /* 使能DAM发送完成中断 */
    dma_channel_enable(RS485_DMAx, RS485_DMA_CH_TX);
    nvic_irq_enable(RS485_DMA_TX_IRQ, 4, 1);
}


void usart_tx_dma_send(uint32_t usart_periph,uint8_t* data_buffer,uint16_t length)
{
    volatile uint32_t i = 0;
    if(usart_periph==USART0)
    {
        /* Channel disable */
        dma_channel_disable(DMA0, DMA_CH3);

        dma_memory_address_config(DMA0, DMA_CH3,(uint32_t)data_buffer);
        dma_transfer_number_config(DMA0,DMA_CH3,length);

        /* enable DMA channel to start send */
        dma_channel_enable(DMA0, DMA_CH3);
    }
    else if(usart_periph==RS485_USARTx)
    {
        /* Channel disable */
//        gpio_bit_set(GPIOC,  GPIO_PIN_12);
		RS485_TX();
        dma_interrupt_flag_clear(RS485_DMAx, RS485_DMA_CH_TX, DMA_INT_FLAG_FTF);
        usart_interrupt_flag_clear(RS485_USARTx,USART_INT_FLAG_TC);
        usart_flag_clear(RS485_USARTx,USART_FLAG_TC);
        for(i=0;i<0xFF;i++);
//        if(dma_flag_get(DMA1,DMA_FLAG_FTF)!=RESET){

//        }
        dma_channel_disable(RS485_DMAx, RS485_DMA_CH_TX);
        dma_memory_address_config(RS485_DMAx, RS485_DMA_CH_TX,(uint32_t)data_buffer);
        dma_transfer_number_config(RS485_DMAx,RS485_DMA_CH_TX,length);
        /* enable DMA channel to start send */
        dma_channel_enable(RS485_DMAx, RS485_DMA_CH_TX);
        usart_dma_transmit_config(RS485_USARTx,USART_DENT_ENABLE);
    }
}


int fputc(int ch, FILE *f) 
{      
	if(g_ptTest.bTestStart==PT_OFF)
	{
		usart_data_transmit(USART0, (uint8_t)ch);
		while(RESET == usart_flag_get(USART0, USART_FLAG_TC));
	}
	return ch;
}

void data_dump(const char *name, uint8_t *data, uint16_t length)
{
	int index = 0;

	printf("%s Data Info: \r\n    ", name);

	for(index = 0;index < length;index++) {
		if((index%4 == 0)&&index) {
			if((index%16 == 0)&&index) {
				printf("\r\n    ");
			} else {
				printf(" ");
			}
		}
		printf("%02x ", *(data + index));
	}
	printf("\r\n");
}



////////////////////////////////////////////////////////////////////////////