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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/Smartcard/main.c @ 8:58d76cf522ff

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Split out code into separate files.
author Daniel O'Connor <darius@dons.net.au>
date Sat, 04 Feb 2012 13:29:31 +1030
parents c59513fd84fb
children
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1 /**
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2 ******************************************************************************
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3 * @file USART/Smartcard/main.c
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4 * @author MCD Application Team
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5 * @version V3.5.0
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6 * @date 08-April-2011
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7 * @brief Main program body
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8 ******************************************************************************
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9 * @attention
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10 *
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11 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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12 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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13 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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14 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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15 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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16 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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17 *
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18 * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
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19 ******************************************************************************
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20 */
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21
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22 /* Includes ------------------------------------------------------------------*/
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23 #include "stm32f10x.h"
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24 #include "platform_config.h"
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25
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26 /* Private define ------------------------------------------------------------*/
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27 #define T0_PROTOCOL 0x00 /* T0 PROTOCOL */
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28 #define SETUP_LENGHT 20
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29 #define HIST_LENGHT 20
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30 #define SC_Receive_Timeout 0x4000 /* direction to reader */
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31
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32 /** @addtogroup STM32F10x_StdPeriph_Examples
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33 * @{
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34 */
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35
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36 /** @addtogroup USART_Smartcard
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37 * @{
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38 */
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39
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40 /* Private typedef -----------------------------------------------------------*/
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41 /* ATR STRUCTURE - ANSWER TO RESET */
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42 typedef struct
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43 {
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44 uint8_t TS; /* Bit Convention */
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45 uint8_t T0; /* High Nibble = N. of setup byte; low nibble = N. of historical byte */
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46 uint8_t T[SETUP_LENGHT]; /* Setup array */
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47 uint8_t H[HIST_LENGHT]; /* Historical array */
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48 uint8_t Tlenght; /* Setup array dimension */
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49 uint8_t Hlenght; /* Historical array dimension */
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50 } SC_ATR;
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51
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52 typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
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53
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54 /* Private macro -------------------------------------------------------------*/
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55 /* Private variables ---------------------------------------------------------*/
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56 USART_InitTypeDef USART_InitStructure;
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57 USART_ClockInitTypeDef USART_ClockInitStructure;
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58 SC_ATR SC_A2R;
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59 __IO uint32_t index = 0, Counter = 0;
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60 volatile TestStatus ATRDecodeStatus = FAILED;
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61 __IO uint32_t CardInserted = 0, CardProtocol = 1;
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62
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63 __IO uint8_t DST_Buffer[50]= {
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64 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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65 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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66 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
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67
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68 /* Private function prototypes -----------------------------------------------*/
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69 /* Private functions ---------------------------------------------------------*/
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70 void RCC_Configuration(void);
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71 void GPIO_Configuration(void);
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72 void EXTI_Configuration(void);
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73 void NVIC_Configuration(void);
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74 uint8_t SC_decode_Answer2reset(__IO uint8_t *card);
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75
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76 /**
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77 * @brief Main program
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78 * @param None
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79 * @retval None
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80 */
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81 int main(void)
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82 {
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83 /*!< At this stage the microcontroller clock setting is already configured,
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84 this is done through SystemInit() function which is called from startup
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85 file (startup_stm32f10x_xx.s) before to branch to application main.
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86 To reconfigure the default setting of SystemInit() function, refer to
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87 system_stm32f10x.c file
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88 */
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89
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90 /* System Clocks Configuration */
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91 RCC_Configuration();
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92
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93 /* NVIC configuration */
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94 NVIC_Configuration();
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95
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96 /* Configure the GPIO ports */
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97 GPIO_Configuration();
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98
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99 /* Configure the EXTI Controller */
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100 EXTI_Configuration();
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101
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102
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103 /* SC_USART configuration ----------------------------------------------------*/
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104 /* SC_USART configured as follow:
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105 - Word Length = 9 Bits
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106 - 0.5 Stop Bit
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107 - Even parity
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108 - BaudRate = 12096 baud
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109 - Hardware flow control disabled (RTS and CTS signals)
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110 - Tx and Rx enabled
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111 - USART Clock enabled
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112 - USART CPOL Low
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113 - USART CPHA on first edge
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114 - USART Last Bit Clock Enabled
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115 */
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116
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117 /* SC_USART Clock set to 4.5MHz (PCLK1 = 36 MHZ / 8) */
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118 USART_SetPrescaler(SC_USART, 0x04);
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119 /* SC_USART Guard Time set to 2 Bit */
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120 USART_SetGuardTime(SC_USART, 0x2);
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121
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122 USART_ClockInitStructure.USART_Clock = USART_Clock_Enable;
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123 USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;
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124 USART_ClockInitStructure.USART_CPHA = USART_CPHA_1Edge;
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125 USART_ClockInitStructure.USART_LastBit = USART_LastBit_Enable;
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126 USART_ClockInit(SC_USART, &USART_ClockInitStructure);
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127
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128 USART_InitStructure.USART_BaudRate = 12096;
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129 USART_InitStructure.USART_WordLength = USART_WordLength_9b;
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130 USART_InitStructure.USART_StopBits = USART_StopBits_1_5;
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131 USART_InitStructure.USART_Parity = USART_Parity_Even;
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132 USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
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133 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
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134 USART_Init(SC_USART, &USART_InitStructure);
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135
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136 /* Enable the SC_USART Parity Error Interrupt */
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137 USART_ITConfig(SC_USART, USART_IT_PE, ENABLE);
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138
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139 /* Enable SC_USART */
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140 USART_Cmd(SC_USART, ENABLE);
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141
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142 /* Enable the NACK Transmission */
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143 USART_SmartCardNACKCmd(SC_USART, ENABLE);
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144
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145 /* Enable the Smartcard Interface */
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146 USART_SmartCardCmd(SC_USART, ENABLE);
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147
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148 /* Loop while no Smartcard is detected */
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149 while(CardInserted == 0)
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150 {
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parents:
diff changeset
151 }
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152
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153 /* Read Smartcard ATR response */
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154 for(index = 0; index < 40; index++, Counter = 0)
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155 {
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156 while((USART_GetFlagStatus(SC_USART, USART_FLAG_RXNE) == RESET) && (Counter != SC_Receive_Timeout))
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157 {
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158 Counter++;
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159 }
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160
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diff changeset
161 if(Counter != SC_Receive_Timeout)
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162 {
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163 DST_Buffer[index] = USART_ReceiveData(SC_USART);
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164 }
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165 }
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166
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167 /* Decode ATR */
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168 CardProtocol = SC_decode_Answer2reset(DST_Buffer);
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169
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170 /* Test if the inserted card is ISO7816-3 T=0 compatible */
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171 if(CardProtocol == 0)
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172 {
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173 /* Inserted card is ISO7816-3 T=0 compatible */
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174 ATRDecodeStatus = PASSED;
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175 }
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176 else
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177 {
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178 /* Inserted Smartcard is not ISO7816-3 T=0 compatible */
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179 ATRDecodeStatus = FAILED;
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180 }
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181
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182 while (1)
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183 {
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184 }
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185 }
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186
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187 /**
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188 * @brief Configures the different system clocks.
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189 * @param None
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190 * @retval None
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191 */
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192 void RCC_Configuration(void)
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193 {
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194 /* Enable GPIO_3_5V, SC_USART_GPIO_CLK, GPIO_CMDVCC, GPIO_RESET, GPIO_OFF and
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195 AFIO clocks */
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196 RCC_APB2PeriphClockCmd(RCC_APB2Periph_3_5V | SC_USART_GPIO_CLK | RCC_APB2Periph_RESET |
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197 RCC_APB2Periph_CMDVCC | RCC_APB2Periph_OFF | RCC_APB2Periph_AFIO, ENABLE);
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198
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199 /* Enable SC_USART clocks */
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200 RCC_APB1PeriphClockCmd(SC_USART_CLK, ENABLE);
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201 }
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202
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203 /**
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204 * @brief Configures the different GPIO ports.
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205 * @param None
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206 * @retval None
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207 */
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208 void GPIO_Configuration(void)
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209 {
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210 GPIO_InitTypeDef GPIO_InitStructure;
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211
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212 #ifdef USE_STM3210C_EVAL
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213 /* Enable the USART3 Pins Software Full Remapping */
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214 GPIO_PinRemapConfig(GPIO_FullRemap_USART3, ENABLE);
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215 #endif
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216 /* Configure SC_USART CK as alternate function push-pull */
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217 GPIO_InitStructure.GPIO_Pin = SC_USART_ClkPin;
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218 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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219 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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220 GPIO_Init(SC_USART_GPIO, &GPIO_InitStructure);
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diff changeset
221
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diff changeset
222 /* Configure SC_USART Tx as alternate function open-drain */
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223 GPIO_InitStructure.GPIO_Pin = SC_USART_TxPin;
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224 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
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225 GPIO_Init(SC_USART_GPIO, &GPIO_InitStructure);
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diff changeset
226
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diff changeset
227 /* Configure Smartcard Reset */
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228 GPIO_InitStructure.GPIO_Pin = SC_RESET;
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229 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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230 GPIO_Init(GPIO_RESET, &GPIO_InitStructure);
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diff changeset
231
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diff changeset
232 /* Set RSTIN HIGH */
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diff changeset
233 GPIO_SetBits(GPIO_RESET, SC_RESET);
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diff changeset
234
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diff changeset
235 /* Configure Smartcard 3/5V */
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236 GPIO_InitStructure.GPIO_Pin = SC_3_5V;
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diff changeset
237 GPIO_Init(GPIO_3_5V, &GPIO_InitStructure);
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diff changeset
238
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diff changeset
239 /* Select 5 V */
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240 GPIO_SetBits(GPIO_3_5V, SC_3_5V);
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241
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diff changeset
242 /* Configure Smartcard CMDVCC */
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diff changeset
243 GPIO_InitStructure.GPIO_Pin = SC_CMDVCC;
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diff changeset
244 GPIO_Init(GPIO_CMDVCC, &GPIO_InitStructure);
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diff changeset
245
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
246 /* Select Smartcard CMDVCC */
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diff changeset
247 GPIO_SetBits(GPIO_CMDVCC, SC_CMDVCC);
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diff changeset
248
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
249 /* Select Smartcard OFF */
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diff changeset
250 GPIO_InitStructure.GPIO_Pin = SC_OFF;
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diff changeset
251 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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diff changeset
252 GPIO_Init(GPIO_OFF, &GPIO_InitStructure);
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diff changeset
253 }
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
254
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
255 /**
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parents:
diff changeset
256 * @brief Configures the External Interrupts controller.
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diff changeset
257 * @param None
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diff changeset
258 * @retval None
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diff changeset
259 */
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diff changeset
260 void EXTI_Configuration(void)
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diff changeset
261 {
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diff changeset
262 EXTI_InitTypeDef EXTI_InitStructure;
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diff changeset
263
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diff changeset
264 /* Smartcard OFF */
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diff changeset
265 GPIO_EXTILineConfig(SC_PortSource, SC_PinSource);
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diff changeset
266
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diff changeset
267 EXTI_StructInit(&EXTI_InitStructure);
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diff changeset
268 EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
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diff changeset
269 EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
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diff changeset
270 EXTI_InitStructure.EXTI_Line = SC_EXTI;
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diff changeset
271 EXTI_InitStructure.EXTI_LineCmd = ENABLE;
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diff changeset
272 EXTI_Init(&EXTI_InitStructure);
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diff changeset
273
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parents:
diff changeset
274 /* Clear SC EXTI Line Pending Bit */
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diff changeset
275 EXTI_ClearITPendingBit(SC_EXTI);
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parents:
diff changeset
276 }
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diff changeset
277
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
278 /**
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parents:
diff changeset
279 * @brief Configures the nested vectored interrupt controller.
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diff changeset
280 * @param None
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diff changeset
281 * @retval None
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diff changeset
282 */
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diff changeset
283 void NVIC_Configuration(void)
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parents:
diff changeset
284 {
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diff changeset
285 NVIC_InitTypeDef NVIC_InitStructure;
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diff changeset
286
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parents:
diff changeset
287 /* Configure the NVIC Preemption Priority Bits */
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diff changeset
288 NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
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diff changeset
289 /* Clear the SC_EXTI IRQ Pending Bit */
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diff changeset
290 NVIC_ClearPendingIRQ(SC_EXTI_IRQ);
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parents:
diff changeset
291
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
292 NVIC_InitStructure.NVIC_IRQChannel = SC_EXTI_IRQ;
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diff changeset
293 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
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diff changeset
294 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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diff changeset
295 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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diff changeset
296 NVIC_Init(&NVIC_InitStructure);
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diff changeset
297
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
298 NVIC_InitStructure.NVIC_IRQChannel = SC_USART_IRQn;
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diff changeset
299 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
c59513fd84fb Initial commit of STM32 test code.
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300 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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301 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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302 NVIC_Init(&NVIC_InitStructure);
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303 }
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304
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305 /**
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306 * @brief Decode the Card ATR Response.
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307 * @param card: pointer to the buffer containing the Card ATR.
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308 * @retval Card protocol
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309 */
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310 uint8_t SC_decode_Answer2reset(__IO uint8_t *card)
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311 {
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312 uint32_t i = 0, flag = 0, buf = 0, protocol = 0;
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313
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314 SC_A2R.TS = 0;
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315 SC_A2R.T0 = 0;
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316 for (i = 0; i < SETUP_LENGHT; i++)
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317 {
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318 SC_A2R.T[i] = 0;
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319 }
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320 for (i = 0;i < HIST_LENGHT; i++)
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321 {
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322 SC_A2R.H[i] = 0;
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323 }
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324 SC_A2R.Tlenght = 0;
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325 SC_A2R.Hlenght = 0;
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326
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327 SC_A2R.TS = card[0]; /* INITIAL CHARACTER */
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328 SC_A2R.T0 = card[1]; /* FORMAT CHARACTER */
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329
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330 SC_A2R.Hlenght = SC_A2R.T0 & 0x0F;
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331
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332 if((SC_A2R.T0 & 0x80) == 0x80) flag = 1;
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333
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334 for(i = 0; i < 4; i++)
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335 {
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336 SC_A2R.Tlenght = SC_A2R.Tlenght + (((SC_A2R.T0 & 0xF0) >> (4 + i)) & 0x1);
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337 }
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338
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339 for(i = 0; i < SC_A2R.Tlenght; i++)
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340 {
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341 SC_A2R.T[i] = card[i + 2];
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342 }
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343
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344 protocol = SC_A2R.T[SC_A2R.Tlenght - 1] & 0x0F;
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345
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346 while(flag)
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347 {
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348 if ((SC_A2R.T[SC_A2R.Tlenght-1] & 0x80)== 0x80)
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349 {
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350 flag = 1;
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351 }
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352 else
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353 {
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354 flag = 0;
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355 }
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356 buf = SC_A2R.Tlenght;
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357 SC_A2R.Tlenght = 0;
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358
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359 for(i = 0; i < 4; i++)
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360 {
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361 SC_A2R.Tlenght = SC_A2R.Tlenght + (((SC_A2R.T[buf - 1] & 0xF0) >> (4 + i)) & 0x1);
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362 }
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363 for(i = 0; i < SC_A2R.Tlenght; i++)
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364 {
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365 SC_A2R.T[buf + i] = card[i + 2 + buf];
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366 }
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367 SC_A2R.Tlenght += buf;
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368 }
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369
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370 for(i = 0;i < SC_A2R.Hlenght; i++)
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diff changeset
371 {
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372 SC_A2R.H[i] = card[i + 2 + SC_A2R.Tlenght];
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373 }
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374
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375 return ((uint8_t)protocol);
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376 }
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377
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378 #ifdef USE_FULL_ASSERT
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379
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380 /**
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381 * @brief Reports the name of the source file and the source line number
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382 * where the assert_param error has occurred.
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383 * @param file: pointer to the source file name
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384 * @param line: assert_param error line source number
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385 * @retval None
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386 */
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387 void assert_failed(uint8_t* file, uint32_t line)
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diff changeset
388 {
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diff changeset
389 /* User can add his own implementation to report the file name and line number,
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diff changeset
390 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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diff changeset
391
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diff changeset
392 /* Infinite loop */
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diff changeset
393 while (1)
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parents:
diff changeset
394 {
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parents:
diff changeset
395 }
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Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
396 }
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diff changeset
397
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diff changeset
398 #endif
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399
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diff changeset
400 /**
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diff changeset
401 * @}
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diff changeset
402 */
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diff changeset
403
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Daniel O'Connor <darius@dons.net.au>
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diff changeset
404 /**
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diff changeset
405 * @}
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diff changeset
406 */
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407
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diff changeset
408 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/