diff options
Diffstat (limited to 'src/stm32lib/examples/USART/Smartcard/main.c')
| -rwxr-xr-x | src/stm32lib/examples/USART/Smartcard/main.c | 444 |
1 files changed, 444 insertions, 0 deletions
diff --git a/src/stm32lib/examples/USART/Smartcard/main.c b/src/stm32lib/examples/USART/Smartcard/main.c new file mode 100755 index 0000000..5f26ba4 --- /dev/null +++ b/src/stm32lib/examples/USART/Smartcard/main.c @@ -0,0 +1,444 @@ +/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
+* File Name : main.c
+* Author : MCD Application Team
+* Version : V2.0.1
+* Date : 06/13/2008
+* Description : Main program body
+********************************************************************************
+* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
+* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
+* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
+* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
+* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+*******************************************************************************/
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x_lib.h"
+#include "platform_config.h"
+
+/* Private define ------------------------------------------------------------*/
+#define T0_PROTOCOL 0x00 /* T0 PROTOCOL */
+#define SETUP_LENGHT 20
+#define HIST_LENGHT 20
+#define SC_Receive_Timeout 0x4000 /* direction to reader */
+
+/* Private typedef -----------------------------------------------------------*/
+/* ATR STRUCTURE - ANSWER TO RESET */
+typedef struct
+{
+ u8 TS; /* Bit Convention */
+ u8 T0; /* high nibble = N. of setup byte; low nibble = N. of historical byte */
+ u8 T[SETUP_LENGHT]; /* setup array */
+ u8 H[HIST_LENGHT]; /* historical array */
+ u8 Tlenght; /* setup array dimension */
+ u8 Hlenght; /* historical array dimension */
+} SC_ATR;
+
+typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+USART_InitTypeDef USART_InitStructure;
+USART_ClockInitTypeDef USART_ClockInitStructure;
+SC_ATR SC_A2R;
+vu32 index = 0, Counter = 0;
+volatile TestStatus ATRDecodeStatus = FAILED;
+vu32 CardInserted = 0, CardProtocol = 1;
+ErrorStatus HSEStartUpStatus;
+vu8 DST_Buffer[50]= {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+void RCC_Configuration(void);
+void GPIO_Configuration(void);
+void EXTI_Configuration(void);
+void NVIC_Configuration(void);
+u8 SC_decode_Answer2reset(vu8 *card);
+
+/*******************************************************************************
+* Function Name : main
+* Description : Main program
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+int main(void)
+{
+#ifdef DEBUG
+ debug();
+#endif
+
+ /* System Clocks Configuration */
+ RCC_Configuration();
+
+ /* NVIC configuration */
+ NVIC_Configuration();
+
+ /* Configure the GPIO ports */
+ GPIO_Configuration();
+
+ /* Configure the EXTI Controller */
+ EXTI_Configuration();
+
+
+/* USART3 configuration -------------------------------------------------------*/
+ /* USART3 configured as follow:
+ - Word Length = 9 Bits
+ - 0.5 Stop Bit
+ - Even parity
+ - BaudRate = 12096 baud
+ - Hardware flow control disabled (RTS and CTS signals)
+ - Tx and Rx enabled
+ - USART Clock enabled
+ - USART CPOL Low
+ - USART CPHA on first edge
+ - USART Last Bit Clock Enabled
+ */
+
+ /* USART Clock set to 4.5MHz (PCLK1 = 36 MHZ / 8) */
+ USART_SetPrescaler(USART3, 0x04);
+ /* USART Guard Time set to 2 Bit */
+ USART_SetGuardTime(USART3, 0x2);
+
+ USART_ClockInitStructure.USART_Clock = USART_Clock_Enable;
+ USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;
+ USART_ClockInitStructure.USART_CPHA = USART_CPHA_1Edge;
+ USART_ClockInitStructure.USART_LastBit = USART_LastBit_Enable;
+ USART_ClockInit(USART3, &USART_ClockInitStructure);
+
+ USART_InitStructure.USART_BaudRate = 12096;
+ USART_InitStructure.USART_WordLength = USART_WordLength_9b;
+ USART_InitStructure.USART_StopBits = USART_StopBits_1_5;
+ USART_InitStructure.USART_Parity = USART_Parity_Even;
+ USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
+ USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
+ USART_Init(USART3, &USART_InitStructure);
+
+ /* Enable the USART3 Parity Error Interrupt */
+ USART_ITConfig(USART3, USART_IT_PE, ENABLE);
+
+ /* Enable USART3 */
+ USART_Cmd(USART3, ENABLE);
+
+ /* Enable the NACK Transmission */
+ USART_SmartCardNACKCmd(USART3, ENABLE);
+
+ /* Enable the Smartcard Interface */
+ USART_SmartCardCmd(USART3, ENABLE);
+
+
+ /* Loop while no Smartcard is detected */
+ while(CardInserted == 0)
+ {
+ }
+
+ /* Read Smartcard ATR response */
+ for(index = 0; index < 40; index++, Counter = 0)
+ {
+ while((USART_GetFlagStatus(USART3, USART_FLAG_RXNE) == RESET) && (Counter != SC_Receive_Timeout))
+ {
+ Counter++;
+ }
+
+ if(Counter != SC_Receive_Timeout)
+ {
+ DST_Buffer[index] = USART_ReceiveData(USART3);
+ }
+ }
+
+ /* Decode ATR */
+ CardProtocol = SC_decode_Answer2reset(DST_Buffer);
+
+ /* Test if the inserted card is ISO7816-3 T=0 compatible */
+ if(CardProtocol == 0)
+ {
+ /* Inserted card is ISO7816-3 T=0 compatible */
+ ATRDecodeStatus = PASSED;
+ }
+ else
+ {
+ /* Inserted Smartcard is not ISO7816-3 T=0 compatible */
+ ATRDecodeStatus = FAILED;
+ }
+
+ while (1)
+ {
+ }
+}
+
+/*******************************************************************************
+* Function Name : RCC_Configuration
+* Description : Configures the different system clocks.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void RCC_Configuration(void)
+{
+ /* RCC system reset(for debug purpose) */
+ RCC_DeInit();
+
+ /* Enable HSE */
+ RCC_HSEConfig(RCC_HSE_ON);
+
+ /* Wait till HSE is ready */
+ HSEStartUpStatus = RCC_WaitForHSEStartUp();
+
+ if(HSEStartUpStatus == SUCCESS)
+ {
+ /* Enable Prefetch Buffer */
+ FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
+
+ /* Flash 2 wait state */
+ FLASH_SetLatency(FLASH_Latency_2);
+
+ /* HCLK = SYSCLK */
+ RCC_HCLKConfig(RCC_SYSCLK_Div1);
+
+ /* PCLK2 = HCLK */
+ RCC_PCLK2Config(RCC_HCLK_Div1);
+
+ /* PCLK1 = HCLK/2 */
+ RCC_PCLK1Config(RCC_HCLK_Div2);
+
+ /* PLLCLK = 8MHz * 9 = 72 MHz */
+ RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
+
+ /* Enable PLL */
+ RCC_PLLCmd(ENABLE);
+
+ /* Wait till PLL is ready */
+ while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
+ {
+ }
+
+ /* Select PLL as system clock source */
+ RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
+
+ /* Wait till PLL is used as system clock source */
+ while(RCC_GetSYSCLKSource() != 0x08)
+ {
+ }
+ }
+
+ /* Enable GPIO_3_5V, GPIOB, GPIO_CMDVCC, GPIO_RESET, GPIO_OFF and AFIO clocks */
+ RCC_APB2PeriphClockCmd(RCC_APB2Periph_3_5V | RCC_APB2Periph_GPIOB | RCC_APB2Periph_RESET |
+ RCC_APB2Periph_CMDVCC | RCC_APB2Periph_OFF | RCC_APB2Periph_AFIO, ENABLE);
+
+ /* Enable USART3 clocks */
+ RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
+}
+
+/*******************************************************************************
+* Function Name : GPIO_Configuration
+* Description : Configures the different GPIO ports.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void GPIO_Configuration(void)
+{
+ GPIO_InitTypeDef GPIO_InitStructure;
+
+ /* Configure USART3 CK(PB12) as alternate function push-pull */
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+ GPIO_Init(GPIOB, &GPIO_InitStructure);
+
+ /* Configure USART3 Tx (PB10) as alternate function open-drain */
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
+ GPIO_Init(GPIOB, &GPIO_InitStructure);
+
+ /* Configure Smartcard Reset */
+ GPIO_InitStructure.GPIO_Pin = SC_RESET;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
+ GPIO_Init(GPIO_RESET, &GPIO_InitStructure);
+
+ /* Set RSTIN HIGH */
+ GPIO_SetBits(GPIO_RESET, SC_RESET);
+
+ /* Configure Smartcard 3/5V */
+ GPIO_InitStructure.GPIO_Pin = SC_3_5V;
+ GPIO_Init(GPIO_3_5V, &GPIO_InitStructure);
+
+ /* Select 5 V */
+ GPIO_SetBits(GPIO_3_5V, SC_3_5V);
+
+ /* Configure Smartcard CMDVCC */
+ GPIO_InitStructure.GPIO_Pin = SC_CMDVCC;
+ GPIO_Init(GPIO_CMDVCC, &GPIO_InitStructure);
+
+ /* Select Smartcard CMDVCC */
+ GPIO_SetBits(GPIO_CMDVCC, SC_CMDVCC);
+
+ /* Select Smartcard OFF */
+ GPIO_InitStructure.GPIO_Pin = SC_OFF;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+ GPIO_Init(GPIO_OFF, &GPIO_InitStructure);
+}
+
+/*******************************************************************************
+* Function Name : EXTI_Configuration
+* Description : Configures the External Interrupts controller.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void EXTI_Configuration(void)
+{
+ EXTI_InitTypeDef EXTI_InitStructure;
+
+ /* Smartcard OFF */
+ GPIO_EXTILineConfig(SC_PortSource, SC_PinSource);
+
+ EXTI_StructInit(&EXTI_InitStructure);
+ EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
+ EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
+ EXTI_InitStructure.EXTI_Line = SC_EXTI;
+ EXTI_InitStructure.EXTI_LineCmd = ENABLE;
+ EXTI_Init(&EXTI_InitStructure);
+
+ /* Clear SC EXTI Line Pending Bit */
+ EXTI_ClearITPendingBit(SC_EXTI);
+}
+
+/*******************************************************************************
+* Function Name : NVIC_Configuration
+* Description : Configures the nested vectored interrupt controller.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void NVIC_Configuration(void)
+{
+ NVIC_InitTypeDef NVIC_InitStructure;
+
+#ifdef VECT_TAB_RAM
+ /* Set the Vector Table base location at 0x20000000 */
+ NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
+#else /* VECT_TAB_FLASH */
+ /* Set the Vector Table base location at 0x08000000 */
+ NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
+#endif
+
+ /* Configure the NVIC Preemption Priority Bits */
+ NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
+ /* Clear the SC_EXTI IRQ Pending Bit */
+ NVIC_ClearIRQChannelPendingBit(SC_EXTI_IRQ);
+
+ NVIC_InitStructure.NVIC_IRQChannel = SC_EXTI_IRQ;
+ NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
+ NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+ NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+ NVIC_Init(&NVIC_InitStructure);
+
+ NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQChannel;
+ NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
+ NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+ NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+ NVIC_Init(&NVIC_InitStructure);
+}
+
+/*******************************************************************************
+* Function Name : SC_decode_Answer2reset
+* Description : Decode the Card ATR Response.
+* Input : - card: pointer to the buffer containing the Card ATR.
+* Output : None
+* Return : Card protocol
+*******************************************************************************/
+u8 SC_decode_Answer2reset(vu8 *card)
+{
+ u32 i = 0, flag = 0, buf = 0, protocol = 0;
+
+ SC_A2R.TS = 0;
+ SC_A2R.T0 = 0;
+ for (i = 0; i < SETUP_LENGHT; i++)
+ {
+ SC_A2R.T[i] = 0;
+ }
+ for (i = 0;i < HIST_LENGHT; i++)
+ {
+ SC_A2R.H[i] = 0;
+ }
+ SC_A2R.Tlenght = 0;
+ SC_A2R.Hlenght = 0;
+
+ SC_A2R.TS = card[0]; /* INITIAL CHARACTER */
+ SC_A2R.T0 = card[1]; /* FORMAT CHARACTER */
+
+ SC_A2R.Hlenght = SC_A2R.T0 & 0x0F;
+
+ if((SC_A2R.T0 & 0x80) == 0x80) flag = 1;
+
+ for(i = 0; i < 4; i++)
+ {
+ SC_A2R.Tlenght = SC_A2R.Tlenght + (((SC_A2R.T0 & 0xF0) >> (4 + i)) & 0x1);
+ }
+
+ for(i = 0; i < SC_A2R.Tlenght; i++)
+ {
+ SC_A2R.T[i] = card[i + 2];
+ }
+
+ protocol = SC_A2R.T[SC_A2R.Tlenght - 1] & 0x0F;
+
+ while(flag)
+ {
+ if ((SC_A2R.T[SC_A2R.Tlenght-1] & 0x80)== 0x80)
+ {
+ flag = 1;
+ }
+ else
+ {
+ flag = 0;
+ }
+ buf = SC_A2R.Tlenght;
+ SC_A2R.Tlenght = 0;
+
+ for(i = 0; i < 4; i++)
+ {
+ SC_A2R.Tlenght = SC_A2R.Tlenght + (((SC_A2R.T[buf - 1] & 0xF0) >> (4 + i)) & 0x1);
+ }
+ for(i = 0; i < SC_A2R.Tlenght; i++)
+ {
+ SC_A2R.T[buf + i] = card[i + 2 + buf];
+ }
+ SC_A2R.Tlenght += buf;
+ }
+
+ for(i = 0;i < SC_A2R.Hlenght; i++)
+ {
+ SC_A2R.H[i] = card[i + 2 + SC_A2R.Tlenght];
+ }
+
+ return ((u8)protocol);
+}
+
+#ifdef DEBUG
+/*******************************************************************************
+* Function Name : assert_failed
+* Description : Reports the name of the source file and the source line number
+* where the assert_param error has occurred.
+* Input : - file: pointer to the source file name
+* - line: assert_param error line source number
+* Output : None
+* Return : None
+*******************************************************************************/
+void assert_failed(u8* file, u32 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
+
+/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/
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