Control Pins and communicate via usart issue

[FLine.1]

Helleo,

I am newbie in Touchgfx and I try developing first project.

I am willing to data transfer stm32746 to pc via usart and control pins.

When I click the button stm doesnt send data via usart or stm doesnt control pins.

Screen1View.cpp codes:

#include <gui/screen1_screen/Screen1View.hpp>
#include "stm32f7xx_hal.h"
extern UART_HandleTypeDef huart2;
 
Screen1View::Screen1View()
{
 
}
 
void Screen1View::setupScreen()
{
    Screen1ViewBase::setupScreen();
}
 
void Screen1View::tearDownScreen()
{
    Screen1ViewBase::tearDownScreen();
}
 
void Screen1View::led_on()
{
 
/*	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_2|GPIO_PIN_5
	                          |GPIO_PIN_3, GPIO_PIN_SET);
*/
	//HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_5);
	//HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_6);
   // textArea1.setVisible(true);
	char com_cevap[12] ="adc_veri\r\n ";
	HAL_UART_Transmit(&huart2, (uint8_t *) &com_cevap, 12, 200);
    btndurum.setAlpha(254);
    btndurum.invalidate();
 
}
 
void Screen1View::led_off()
{
/*	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_2|GPIO_PIN_5
	                          |GPIO_PIN_3, GPIO_PIN_RESET);
*/
	//HAL_GPIO_WritePin(GPIOD, GPIO_PIN_5, GPIO_PIN_RESET);
	//HAL_GPIO_WritePin(GPIOD, GPIO_PIN_6, GPIO_PIN_RESET);
    btndurum.setAlpha(50);
    btndurum.invalidate();
 
}

 

please tell me whats wrong? Could i control pins or data transfer in button click?

I use STMCubeIDe 1.5.1, Visual Studio 2019 and last framework.TouchGfx 4.15

[MM..1]

You need debug your code, because from your info we cant help.

Yes you can control activated GPIO , or use quick transfers. For slow is better use IT DMA or next thread in RTOS.

[FLine.1]

hello,

If you have sample project about uart, please share it.

I added my debug file. How can i get sample videos touchgfx.

[MM..1]

You missunderstand me , Debug folder, that you zip is totaly unusable for help you.

[FLine.1]

i added . if you have a video for education and share i appreciate.

[MM..1]

Try this in your main.c

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
char giden[10]="";
/* USER CODE END 0 */
 
/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */
....
....
 
void StartTaskUart(void const * argument)
{
  /* USER CODE BEGIN StartTaskUart */
  /* Infinite loop */
  for(;;)
  {
	  if(giden[0]!=0) {
		  HAL_UART_Transmit(&huart2, (uint8_t *)giden,10,30);
		  giden[0]=0;
	  }
 
    osDelay(10);
  }
  /* USER CODE END StartTaskUart */
}
 

and screenview.cpp

#include <gui/screen1_screen/Screen1View.hpp>
#include "stm32f7xx_hal.h"
#include "string.h"
 
extern char giden[];
 
Screen1View::Screen1View()
{
 
}
 
void Screen1View::setupScreen()
{
    Screen1ViewBase::setupScreen();
}
 
void Screen1View::tearDownScreen()
{
    Screen1ViewBase::tearDownScreen();
}
 
void Screen1View::veri_gonder()
{
	//HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_5);
	//HAL_Delay(200); ??? DONT USE DELAYS IN GUI !!!
	strcpy(giden, "start\n\r");	// checked in thread and send
 
}
 
void Screen1View::veri_stop()
{
	//HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_6);
	//	HAL_Delay(200);
//	char giden[10]="stop\n\r";
	if(giden[0]==0) strcpy(giden, "stop\n\r");
}
 

[zzzzz]

When include some C headers in Cpp, put them inside external C. like this:

#include <gui/screen1_screen/Screen1View.hpp>

extern "C"

{

#include "stm32f7xx_hal.h"

#include "cmsis_os.h"

#include "UART.h" // put huart2 here

}

...

Then debug it, make sure HAL_UART_Transmit in your button callback is being called.

[MM..1]

And for you see interactions example :

#include <gui/screen1_screen/Screen1View.hpp>
#include <touchgfx/Color.hpp>
//#include "stm32f7xx_hal.h"
#include "string.h"
 
extern char giden[];
 
Screen1View::Screen1View()
{
 
}
 
void Screen1View::setupScreen()
{
    Screen1ViewBase::setupScreen();
}
 
void Screen1View::tearDownScreen()
{
    Screen1ViewBase::tearDownScreen();
}
 
void Screen1View::veri_gonder()
{
	//HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_5);
	strcpy(giden, "start\n\r");	// checked in thread and send
 
	btnGonder.setLabelColor(touchgfx::Color::getColorFrom24BitRGB(0, 255, 255));
}
 
void Screen1View::veri_stop()
{
	//HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_6);
	if(giden[0]==0) strcpy(giden, "stop\n\r");
 
	btnGonder.setLabelColor(touchgfx::Color::getColorFrom24BitRGB(255, 255, 255));
	btnGonder.invalidate();
}
 

[MM..1]

Yes and when you try call it directly include extern, not create new.

UART_HandleTypeDef huart2; is new empty handle

instead use

extern UART_HandleTypeDef huart2;

or with extern "C" as writed zzzzz

[FLine.1]

Hello

Thank you for replies.

I created new project and added two button with two interaction.

I set uart2 D5 and D6 pins.115200 baud and polling connecting not IT or DMA.

I coded like you but same result . i cant send data from stm32746 to pc via uart.

main.c

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
 
char giden[10] = "adbcde\r\n";
 
/* USER CODE END 0 */
 
static void MX_USART2_UART_Init(void)
{
 
  /* USER CODE BEGIN USART2_Init 0 */
 
  /* USER CODE END USART2_Init 0 */
 
  /* USER CODE BEGIN USART2_Init 1 */
 
  /* USER CODE END USART2_Init 1 */
  huart2.Instance = USART2;
  huart2.Init.BaudRate = 115200;
  huart2.Init.WordLength = UART_WORDLENGTH_8B;
  huart2.Init.StopBits = UART_STOPBITS_1;
  huart2.Init.Parity = UART_PARITY_NONE;
  huart2.Init.Mode = UART_MODE_TX_RX;
  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
  huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart2) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART2_Init 2 */
 
  /* USER CODE END USART2_Init 2 */
 
}

uart task i created in main.c

/* USER CODE END Header_StartTask_Uart */
void StartTask_Uart(void const * argument)
{
  /* USER CODE BEGIN StartTask_Uart */
  /* Infinite loop */
  for(;;)
  {
	  if (giden[0] != 0) {//icinde deger varsa
		  HAL_UART_Transmit(&huart2, (uint8_t *)giden, 10 ,30);
		  giden[0] = 0;
 
	}
 
    osDelay(1000);
  }
  /* USER CODE END StartTask_Uart */
}

screen1view.cpp

#include <gui/screen1_screen/Screen1View.hpp>
/*
extern "C"
{
	#include "stm32f7xx_hal.h"
	#include "cmsis_os.h"
	UART_HandleTypeDef huart2;
}
*/
 
#include "string.h"
 
extern char giden[];
 
Screen1View::Screen1View()
{
 
}
 
void Screen1View::setupScreen()
{
    Screen1ViewBase::setupScreen();
}
 
void Screen1View::tearDownScreen()
{
    Screen1ViewBase::tearDownScreen();
}
 
void Screen1View::basla()
{
	strcpy(giden, "basla\n\r");
	btnBasla.invalidate();
 
}
 
void Screen1View::bitir()
{
	if (giden[0] == 0) {
		strcpy(giden, "durdu\n\r");
 
	}
	btn_bitir.invalidate();
}