Posted on June 27, 2018 at 09:30
Hi everyone, im trying to send datas to 8 uarts+usarts on stm32f7 mcu. I'm getting datas from ethernet wtih netconn connection. I'm using FreeRTOS and lwIP stack. I have a task that calls netconn_recv(conn, &buf); in infinite loop. When netcon_recv function returns OK i parse datas. Than i send datas to proper ports by interrupt method. But when more than 1 uart data appear at ethernet, my FPS of uart output starts to decrease. I need an advice to increase the speed of data send system.
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
{
if(huart == &huart6)
{
usart6_tx_ready_u8 = TRUE;
}
if(huart == &huart1)
{
usart1_tx_ready_u8 = TRUE;
}
if(huart == &huart2)
{
usart2_tx_ready_u8 = TRUE;
}
if(huart == &huart3)
{
usart3_tx_ready_u8 = TRUE;
}
if(huart == &huart8)
{
usart8_tx_ready_u8 = TRUE;
}
if(huart == &huart7)
{
usart7_tx_ready_u8 = TRUE;
}
if(huart == &huart5)
{
usart5_tx_ready_u8 = TRUE;
}
if(huart == &huart4)
{
usart4_tx_ready_u8 = TRUE;
}
}
/* SEND 4 UART */
void data_send(uint8_t port_no, uint8_t* data_buffer, test_t* TEST, uint16_t size)
{
switch (port_no)
{
case (uint8_t)PORT1:
{
usart5_tx_ready_u8 = FALSE;
MX_UART5_Init2();//change baudrate to SET1
HAL_UART_Transmit_IT(&huart5,TEST->start_buffer,1);
while(usart5_tx_ready_u8 == FALSE);//wait callback
usart5_tx_ready_u8 = FALSE;
MX_UART5_Init();//change baudrate to SET2 again
HAL_UART_Transmit_IT(&huart5, data_buffer,size+1);
while(usart5_tx_ready_u8 == FALSE);
break;
}
case (uint8_t)PORT2:
{
usart6_tx_ready_u8 = FALSE;
MX_USART6_UART_Init2();//change baudrate to SET1
HAL_UART_Transmit_IT(&huart6,TEST->start_buffer,1);
while(usart6_tx_ready_u8 == FALSE);//wait callback
usart6_tx_ready_u8 = FALSE;
MX_USART6_UART_Init();//change baudrate to SET2 again
HAL_UART_Transmit_IT(&huart6, data_buffer,size+1);
while(usart6_tx_ready_u8 == FALSE);
break;
}
case (uint8_t)PORT3:
{
usart7_tx_ready_u8 = FALSE;
MX_UART7_Init2();//change baudrate to SET1
HAL_UART_Transmit_IT(&huart7,TEST->start_buffer,1);
while(usart7_tx_ready_u8 == FALSE);//wait callback
usart7_tx_ready_u8 = FALSE;
MX_UART7_Init();//change baudrate to SET2 again
HAL_UART_Transmit_IT(&huart7, data_buffer,size+1);
while(usart7_tx_ready_u8 == FALSE);
break;
}
case (uint8_t)PORT4:
{
usart8_tx_ready_u8 = FALSE;
MX_UART8_Init2();//change baudrate to SET1
HAL_UART_Transmit_IT(&huart8,TEST->start_buffer,1);
while(usart8_tx_ready_u8 == FALSE);//wait callback
usart8_tx_ready_u8 = FALSE;
MX_UART8_Init();//change baudrate to SET2 again
HAL_UART_Transmit_IT(&huart8, data_buffer,size+1);
while(usart8_tx_ready_u8 == FALSE);
break;
}
default:
{
break;
}
}
}
/* SEND OTHER 4 UART */
void data_send2(uint8_t port_no, uint8_t* data_buffer, test_t* TEST, uint16_t size)
{
...
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#usart #stm32f-uart #uart-interrupt #ethernet-stm32f7
