everybody. My task is to connect STM32F4 discovery Board with Smart Card ISO7816. I don't use interface ST8024CDR only hooked paid directly by the scheme specified in the image:
I tried to adapt the Cubex project to STM32F1xx-EVAL. ATR reception does not work. The oscilloscope shows that the I/O port from the map is something similar to a sawtooth signal, but more flat (on three different maps it is different). So I guess it's still an ATR.
The configuration of the UART and frequency:
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG( PWR_REGULATOR_VOLTAGE_SCALE1);
/** Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 168;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 4;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
{
Error_Handler();
}
}
static void MX_USART1_SMARTCARD_Init(void){
/* USER CODE BEGIN USART1_Init 0 */
__HAL_RCC_USART1_CLK_ENABLE();
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USART Clock set to 3,5 MHz (PCLK2 (84 MHz) / 24) */
/* USER CODE END USART1_Init 1 */
SmartCardHandle.Instance = USART1;
SmartCardHandle.Init.BaudRate = 9408; /* Starting baudrate = 3,5MHz / 372etu */
SmartCardHandle.Init.WordLength = SMARTCARD_WORDLENGTH_9B;
SmartCardHandle.Init.StopBits = SMARTCARD_STOPBITS_1_5;
SmartCardHandle.Init.Parity = SMARTCARD_PARITY_EVEN;
SmartCardHandle.Init.Mode = SMARTCARD_MODE_TX_RX;
SmartCardHandle.Init.CLKPolarity = SMARTCARD_POLARITY_LOW;
SmartCardHandle.Init.CLKPhase = SMARTCARD_PHASE_1EDGE;
SmartCardHandle.Init.CLKLastBit = SMARTCARD_LASTBIT_DISABLE;
SmartCardHandle.Init.Prescaler = 12;
SmartCardHandle.Init.GuardTime = 16;
SmartCardHandle.Init.NACKState = SMARTCARD_NACK_DISABLE;
if (HAL_SMARTCARD_Init(&SmartCardHandle) != HAL_OK)
{
Error_Handler();
}
__HAL_SMARTCARD_ENABLE(&SmartCardHandle);
/* USER CODE BEGIN USART1_Init 2 */
HAL_SMARTCARD_Init(&SmartCardHandle);
SC_RESET(GPIO_PIN_SET);
/* USER CODE END USART1_Init 2 */
}
void HAL_SMARTCARD_MspInit(SMARTCARD_HandleTypeDef* hsmartcard)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(hsmartcard->Instance==USART1)
{
/* USER CODE BEGIN USART1_MspInit 0 */
/* USER CODE END USART1_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_USART1_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
/**USART1 GPIO Configuration
PA8 ------> USART1_CK
PA9 ------> USART1_TX
*/
GPIO_InitStruct.Pin = GPIO_PIN_8;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* USART1 interrupt Init */
HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USART1_IRQn);
/* USER CODE BEGIN USART1_MspInit 1 */
/* USER CODE END USART1_MspInit 1 */
}
}
Trying to read directly:
HAL_GPIO_WritePin(GPIOD, GPIO_PIN_15, GPIO_PIN_RESET);
HAL_Delay(500);
HAL_GPIO_WritePin(GPIOD, GPIO_PIN_15, GPIO_PIN_SET);
convention=HAL_SMARTCARD_Receive(&SmartCardHandle, atr_buff, atr_size, 500);
HAL_Delay(12);
/* Insert delay of 20ms for signal stabilization */
HAL_GPIO_WritePin(GPIOD, GPIO_PIN_15, GPIO_PIN_SET);
HAL_Delay(300);
PD15 - Reset. I always get zeros. What could be the problem?
