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STM32CubeF1/Projects/STM3210C_EVAL/Examples/SMARTCARD/SMARTCARD_T0/Src/main.c

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/**
******************************************************************************
* @file SMARTCARD_T0/Src/main.c
* @author MCD Application Team
* @brief This sample code shows how to use STM32F1xx SMARTCARD HAL API to communicate
* with card compatible with T0 protocol.
******************************************************************************
* @attention
*
* Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#if defined(HAL_UART_MODULE_ENABLED)
#include <stdio.h>
#endif /* HAL_UART_MODULE_ENABLED */
/** @addtogroup STM32F1xx_HAL_Examples
* @{
*/
/** @addtogroup SMARTCARD_T0
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#if defined(HAL_UART_MODULE_ENABLED)
#define UART_TIMEOUT_VALUE 1000
#endif /* HAL_UART_MODULE_ENABLED */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Directories & Files ID */
const uint8_t MasterRoot[2] = {0x3F, 0x00};
const uint8_t GSMDir[2] = {0x7F, 0x20};
const uint8_t ICCID[2] = {0x2F, 0xE2};
const uint8_t IMSI[2] = {0x6F, 0x07};
const uint8_t CHV1[8] = {'0', '0', '0', '0', '0', '0', '0', '0'};
/* APDU Transport Structures */
SC_ADPU_Commands SC_ADPU;
SC_ADPU_Response SC_Response;
__IO uint32_t CardInserted = 0;
uint32_t CHV1Status = 0, i = 0;
__IO uint8_t ICCID_Content[10] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
__IO uint8_t IMSI_Content[9] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
#if defined(HAL_UART_MODULE_ENABLED)
UART_HandleTypeDef huart;
#endif /* HAL_UART_MODULE_ENABLED */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
#if defined(HAL_UART_MODULE_ENABLED)
void UART_Config(void);
#ifdef __GNUC__
/* With GCC, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
#endif /* HAL_UART_MODULE_ENABLED */
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F107xC HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 72 MHz */
SystemClock_Config();
/* Initialize LEDs *************************/
BSP_LED_Init(LED1);
BSP_LED_Init(LED2);
BSP_LED_Init(LED3);
BSP_LED_Init(LED4);
#if defined(HAL_UART_MODULE_ENABLED)
UART_Config();
#endif /* HAL_UART_MODULE_ENABLED */
SC_State SCState = SC_POWER_OFF;
/* Configure Smartcard Interface GPIO pins */
SC_IOConfig();
/*-------------------------------- Idle task ---------------------------------*/
while(1)
{
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- Waiting for card insertion -- (LED1 blinking) \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
/* Loop while no Smartcard is detected */
while(CardInserted == 0)
{
BSP_LED_Toggle(LED1);
HAL_Delay(200);
}
BSP_LED_On(LED1);
/* Start SC Demo ---------------------------------------------------------*/
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- Card inserted -- (All LEDs On) \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
/* Wait A2R --------------------------------------------------------------*/
SCState = SC_POWER_ON;
SC_ADPU.Header.CLA = 0x00;
SC_ADPU.Header.INS = SC_GET_A2R;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x00;
SC_ADPU.Body.LC = 0x00;
while(SCState != SC_ACTIVE_ON_T0)
{
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
}
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- Card powered ON : ATR received -- \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
/* Apply the Procedure Type Selection (PTS) */
SC_PTSConfig();
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- PTS procedure performed -- \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
/* Inserts delay(400ms) for Smartcard clock resynchronisation */
HAL_Delay(400);
/* Select MF -------------------------------------------------------------*/
SC_ADPU.Header.CLA = SC_CLA_GSM11;
SC_ADPU.Header.INS = SC_SELECT_FILE;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x00;
SC_ADPU.Body.LC = 0x02;
for(i = 0; i < SC_ADPU.Body.LC; i++)
{
SC_ADPU.Body.Data[i] = MasterRoot[i];
}
while(i < LC_MAX)
{
SC_ADPU.Body.Data[i++] = 0;
}
SC_ADPU.Body.LE = 0;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### SELECT MF ### \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
/* Get Response on MF ----------------------------------------------------*/
if(SC_Response.SW1 == SC_DF_SELECTED)
{
SC_ADPU.Header.CLA = SC_CLA_GSM11;
SC_ADPU.Header.INS = SC_GET_RESPONCE;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x00;
SC_ADPU.Body.LC = 0x00;
SC_ADPU.Body.LE = SC_Response.SW2;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
}
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### GET RESPONSE ### \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
/* Select ICCID ----------------------------------------------------------*/
if(((SC_Response.SW1 << 8) | (SC_Response.SW2)) == SC_OP_TERMINATED)
{
/* Check if the CHV1 is enabled */
if((SC_Response.Data[13] & 0x80) == 0x00)
{
CHV1Status = 0x01;
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- CHV1 is enabled -- \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
}
else
{
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- CHV1 is disabled -- \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
}
/* Send APDU Command for ICCID selection */
SC_ADPU.Header.CLA = SC_CLA_GSM11;
SC_ADPU.Header.INS = SC_SELECT_FILE;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x00;
SC_ADPU.Body.LC = 0x02;
for(i = 0; i < SC_ADPU.Body.LC; i++)
{
SC_ADPU.Body.Data[i] = ICCID[i];
}
while(i < LC_MAX)
{
SC_ADPU.Body.Data[i++] = 0;
}
SC_ADPU.Body.LE = 0;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### SELECT EF ICCID ### \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
}
/* Read Binary in ICCID --------------------------------------------------*/
if(SC_Response.SW1 == SC_EF_SELECTED)
{
SC_ADPU.Header.CLA = SC_CLA_GSM11;
SC_ADPU.Header.INS = SC_READ_BINARY;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x00;
SC_ADPU.Body.LC = 0x00;
SC_ADPU.Body.LE = 10;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
}
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### READ BINARY (ICCID) ### \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
/* Select GSMDir ---------------------------------------------------------*/
if(((SC_Response.SW1 << 8) | (SC_Response.SW2)) == SC_OP_TERMINATED)
{
/* Copy the ICCID File content into ICCID_Content buffer */
for(i = 0; i < SC_ADPU.Body.LE; i++)
{
ICCID_Content[i] = SC_Response.Data[i];
}
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ICCID Value = ");
for(i = 0; i < SC_ADPU.Body.LE; i++)
{
printf("%x ",ICCID_Content[i]);
}
printf("\n\r");
#endif /* HAL_UART_MODULE_ENABLED */
/* Send APDU Command for GSMDir selection */
SC_ADPU.Header.CLA = SC_CLA_GSM11;
SC_ADPU.Header.INS = SC_SELECT_FILE;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x00;
SC_ADPU.Body.LC = 0x02;
for(i = 0; i < SC_ADPU.Body.LC; i++)
{
SC_ADPU.Body.Data[i] = GSMDir[i];
}
while(i < LC_MAX)
{
SC_ADPU.Body.Data[i++] = 0;
}
SC_ADPU.Body.LE = 0;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### SELECT DF GSM ### \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
}
/* Select IMSI -----------------------------------------------------------*/
if(SC_Response.SW1 == SC_DF_SELECTED)
{
SC_ADPU.Header.CLA = SC_CLA_GSM11;
SC_ADPU.Header.INS = SC_SELECT_FILE;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x00;
SC_ADPU.Body.LC = 0x02;
for(i = 0; i < SC_ADPU.Body.LC; i++)
{
SC_ADPU.Body.Data[i] = IMSI[i];
}
while(i < LC_MAX)
{
SC_ADPU.Body.Data[i++] = 0;
}
SC_ADPU.Body.LE = 0;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### SELECT EF IMSI ### \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
}
/* Get Response on IMSI File ---------------------------------------------*/
if(SC_Response.SW1 == SC_EF_SELECTED)
{
SC_ADPU.Header.CLA = SC_CLA_GSM11;
SC_ADPU.Header.INS = SC_GET_RESPONCE;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x00;
SC_ADPU.Body.LC = 0x00;
SC_ADPU.Body.LE = SC_Response.SW2;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
}
/* Read Binary in IMSI ---------------------------------------------------*/
if(CHV1Status == 0x00)
{
if(((SC_Response.SW1 << 8) | (SC_Response.SW2)) == SC_OP_TERMINATED)
{
/* Enable CHV1 (PIN1) ------------------------------------------------*/
/* CHV1 enabling should be done using proper value of used card CHV1 */
/* Please fill corresponding value in CHV1[array] . Current value is set to "00000000". */
SC_ADPU.Header.CLA = SC_CLA_GSM11;
SC_ADPU.Header.INS = SC_ENABLE;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x01;
SC_ADPU.Body.LC = 0x08;
for(i = 0; i < SC_ADPU.Body.LC; i++)
{
SC_ADPU.Body.Data[i] = CHV1[i];
}
while(i < LC_MAX)
{
SC_ADPU.Body.Data[i++] = 0;
}
SC_ADPU.Body.LE = 0;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### CHV1 ENABLE ### \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
}
}
else
{
if(((SC_Response.SW1 << 8) | (SC_Response.SW2)) == SC_OP_TERMINATED)
{
/* Verify CHV1 (PIN1) ------------------------------------------------*/
/* CHV1 enabling should be done using proper value of used card CHV1 */
/* Please fill corresponding value in CHV1[array] . Current value is set to "00000000". */
SC_ADPU.Header.CLA = SC_CLA_GSM11;
SC_ADPU.Header.INS = SC_VERIFY;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x01;
SC_ADPU.Body.LC = 0x08;
for(i = 0; i < SC_ADPU.Body.LC; i++)
{
SC_ADPU.Body.Data[i] = CHV1[i];
}
while(i < LC_MAX)
{
SC_ADPU.Body.Data[i++] = 0;
}
SC_ADPU.Body.LE = 0;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### CHV1 VERIFY ### \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
}
}
/* Read Binary in IMSI ---------------------------------------------------*/
if(((SC_Response.SW1 << 8) | (SC_Response.SW2)) == SC_OP_TERMINATED)
{
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### CHV1 Operation successfull ### \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
SC_ADPU.Header.CLA = SC_CLA_GSM11;
SC_ADPU.Header.INS = SC_READ_BINARY;
SC_ADPU.Header.P1 = 0x00;
SC_ADPU.Header.P2 = 0x00;
SC_ADPU.Body.LC = 0x00;
SC_ADPU.Body.LE = 9;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
}
else
{
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### CHV1 Operation unsuccessfull : SW1/SW2=0x%4x ### \n\r", ((SC_Response.SW1 << 8) | (SC_Response.SW2)));
#endif /* HAL_UART_MODULE_ENABLED */
}
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- ### READ BINARY (IMSI) ### \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
if(((SC_Response.SW1 << 8) | (SC_Response.SW2)) == SC_OP_TERMINATED)
{
/* Copy the IMSI File content into IMSI_Content buffer */
for(i = 0; i < SC_ADPU.Body.LE; i++)
{
IMSI_Content[i] = SC_Response.Data[i];
}
}
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- IMSI Value = ");
for(i = 0; i < SC_ADPU.Body.LE; i++)
{
printf("%x ",IMSI_Content[i]);
}
printf("\n\r");
#endif /* HAL_UART_MODULE_ENABLED */
/* Disable the Smartcard interface */
SCState = SC_POWER_OFF;
SC_Handler(&SCState, &SC_ADPU, &SC_Response);
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- Card powered OFF -- \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
#if defined(HAL_UART_MODULE_ENABLED)
printf("-- Waiting for card removal -- (LED1 blinking) \n\r");
#endif /* HAL_UART_MODULE_ENABLED */
/* Loop while a Smartcard is detected */
while(CardInserted == 1)
{
BSP_LED_Toggle(LED1);
HAL_Delay(200);
}
BSP_LED_Off(LED1);
BSP_LED_Off(LED2);
BSP_LED_Off(LED3);
BSP_LED_Off(LED4);
}
}
/**
* @brief System Clock Configuration
* The system Clock is configured as follow :
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 72000000
* HCLK(Hz) = 72000000
* AHB Prescaler = 1
* APB1 Prescaler = 2
* APB2 Prescaler = 1
* HSE Frequency(Hz) = 25000000
* HSE PREDIV1 = 5
* HSE PREDIV2 = 5
* PLL2MUL = 8
* Flash Latency(WS) = 2
* @param None
* @retval None
*/
void SystemClock_Config(void)
{
RCC_ClkInitTypeDef clkinitstruct = {0};
RCC_OscInitTypeDef oscinitstruct = {0};
/* Configure PLLs ------------------------------------------------------*/
/* PLL2 configuration: PLL2CLK = (HSE / HSEPrediv2Value) * PLL2MUL = (25 / 5) * 8 = 40 MHz */
/* PREDIV1 configuration: PREDIV1CLK = PLL2CLK / HSEPredivValue = 40 / 5 = 8 MHz */
/* PLL configuration: PLLCLK = PREDIV1CLK * PLLMUL = 8 * 9 = 72 MHz */
/* Enable HSE Oscillator and activate PLL with HSE as source */
oscinitstruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
oscinitstruct.HSEState = RCC_HSE_ON;
oscinitstruct.HSEPredivValue = RCC_HSE_PREDIV_DIV5;
oscinitstruct.Prediv1Source = RCC_PREDIV1_SOURCE_PLL2;
oscinitstruct.PLL.PLLState = RCC_PLL_ON;
oscinitstruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
oscinitstruct.PLL.PLLMUL = RCC_PLL_MUL9;
oscinitstruct.PLL2.PLL2State = RCC_PLL2_ON;
oscinitstruct.PLL2.PLL2MUL = RCC_PLL2_MUL8;
oscinitstruct.PLL2.HSEPrediv2Value = RCC_HSE_PREDIV2_DIV5;
if (HAL_RCC_OscConfig(&oscinitstruct)!= HAL_OK)
{
/* Initialization Error */
while(1);
}
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
clocks dividers */
clkinitstruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
clkinitstruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
clkinitstruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
clkinitstruct.APB2CLKDivider = RCC_HCLK_DIV1;
clkinitstruct.APB1CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&clkinitstruct, FLASH_LATENCY_2)!= HAL_OK)
{
/* Initialization Error */
while(1);
}
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* Toggle LED_RED */
while (1)
{
BSP_LED_Toggle(LED_RED);
HAL_Delay(1000);
}
}
/**
* @brief EXTI line detection callbacks
* @param GPIO_Pin: Specifies the pins connected EXTI line
* @retval None
*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if(GPIO_Pin == SC_OFF_PIN)
{
/* Toggle LED2..4 */
BSP_LED_Toggle(LED2);
BSP_LED_Toggle(LED3);
BSP_LED_Toggle(LED4);
if (CardInserted == 0)
{
/* Smartcard detected */
CardInserted = 1;
/* Enable CMDVCC */
SC_PowerCmd(ENABLE);
/* Reset the card */
SC_Reset(GPIO_PIN_RESET);
}
else
{
/* Smartcard removed */
CardInserted = 0;
/* Enable CMDVCC */
SC_PowerCmd(DISABLE);
}
}
else
{
/* Smartcard removed */
CardInserted = 0;
}
}
/**
* @brief SMARTCARD error callbacks
* @param hsc: usart handle
* @retval None
*/
void HAL_SMARTCARD_ErrorCallback(SMARTCARD_HandleTypeDef *hsc)
{
if(HAL_SMARTCARD_GetError(hsc) & HAL_SMARTCARD_ERROR_FE)
{
__HAL_SMARTCARD_FLUSH_DRREGISTER(hsc);
/* Resend the byte that failed to be received (by the Smartcard) correctly */
SC_ParityErrorHandler();
}
if(HAL_SMARTCARD_GetError(hsc) & HAL_SMARTCARD_ERROR_PE)
{
/* Enable SC_USART RXNE Interrupt (until receiving the corrupted byte) */
__HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_RXNE);
/* Flush the SC_USART DR register */
__HAL_SMARTCARD_FLUSH_DRREGISTER(hsc);
}
if(HAL_SMARTCARD_GetError(hsc) & HAL_SMARTCARD_ERROR_NE)
{
__HAL_SMARTCARD_FLUSH_DRREGISTER(hsc);
}
if(HAL_SMARTCARD_GetError(hsc) & HAL_SMARTCARD_ERROR_ORE)
{
__HAL_SMARTCARD_FLUSH_DRREGISTER(hsc);
}
}
/**
* @brief Rx Transfer completed callbacks
* @param hsc: usart handle
* @retval None
*/
void HAL_SMARTCARD_RxCpltCallback(SMARTCARD_HandleTypeDef *hsc)
{
/* Disable SC_USART RXNE Interrupt */
__HAL_SMARTCARD_DISABLE_IT(hsc, SMARTCARD_IT_RXNE);
hsc->Instance->DR;
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
#if defined(HAL_UART_MODULE_ENABLED)
/**
* @brief Configures the USARTx and associated pins.
* @param None
* @retval None
*/
void UART_Config(void)
{
/* UARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
huart.Init.BaudRate = 115200;
huart.Init.Mode = UART_MODE_TX_RX;
huart.Init.Parity = UART_PARITY_NONE;
huart.Init.StopBits = UART_STOPBITS_1;
huart.Init.WordLength = UART_WORDLENGTH_8B;
huart.Init.HwFlowCtl = UART_HWCONTROL_NONE;
BSP_COM_Init(COM1, &huart);
}
/**
* @brief Retargets the C library printf function to the USART2.
* @param ch: character to send
* @param f: pointer to file (not used)
* @retval The character transmitted
*/
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the EVAL_COM1 and Loop until the end of transmission */
HAL_UART_Transmit(&huart, (uint8_t *)&ch, 1, UART_TIMEOUT_VALUE);
return ch;
}
/**
* @brief Retargets the C library scanf function to the USART2.
* @param f: pointer to file (not used)
* @retval The character received
*/
int fgetc(FILE * f)
{
uint8_t ch = 0;
/* We received the charracter on the handler of the USART2 */
/* The handler must be initialise before */
HAL_UART_Receive(&huart, (uint8_t *)&ch, 1, UART_TIMEOUT_VALUE);
return ch;
}
#endif /* HAL_UART_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
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