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annotate BootLoader/Src/externCPU2bootloader_mini.c @ 987:45a2bd04b156 BootloaderOstc5

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Removed Font144 references because Font cause a linker problem and is not used by Bootloader
author Ideenmodellierer
date Sun, 30 Mar 2025 21:39:52 +0200 (5 weeks ago)
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children
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1 /**
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2 ******************************************************************************
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3 * @file externCPU2bootloader.c Template
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4 * @author heinrichs weikamp gmbh
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5 * @version V0.0.1
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6 * @date 23-Oct-2014
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7 * @version V0.0.1
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8 * @since 23-Oct-2014
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9 * @brief Main Template to communicate with the second CPU in bootloader mode
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10 * bootloader ROM build by ST and defined in AN4286
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11 *
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12 @verbatim
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13 ==============================================================================
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14 ##### How to use #####
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15 ==============================================================================
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16 @endverbatim
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17 ******************************************************************************
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18 * @attention
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19 *
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20 * <h2><center>&copy; COPYRIGHT(c) 2016 heinrichs weikamp</center></h2>
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21 *
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22 ******************************************************************************
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23 */
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24
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25 /* Includes ------------------------------------------------------------------*/
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26 #include "stm32f4xx_hal.h"
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27 #include "stdio.h"
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28 #include "ostc.h"
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29 #include "settings.h"
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30 #include "externCPU2bootloader.h"
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31 #include "externLogbookFlash.h"
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32 #include "tComm.h"
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33
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34
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35 /* Exported variables --------------------------------------------------------*/
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36
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37 /* Private types -------------------------------------------------------------*/
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38
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39 /* Private variables ---------------------------------------------------------*/
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40
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41 /* Private function prototypes -----------------------------------------------*/
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42
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43 static uint8_t boot_sync_frame(void);
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44 static uint8_t boot_ack(void);
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45 static uint8_t boot_get_id(uint8_t *RxBuffer);
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46 static uint8_t boot_get_version(uint8_t *RxBuffer);
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47 static uint8_t boot_write_memory(uint32_t address, uint8_t length_minus_1, uint8_t *data);
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48 static uint8_t boot_erase_memory(void);
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49 static void Bootloader_send_command(uint8_t command);
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50 static void Bootloader_spi_single(uint8_t TxByte);
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51 static void Bootloader_spi(uint16_t lengthData, uint8_t *aTxBuffer, uint8_t *aRxBuffer);
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52
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53
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54 /* Exported functions --------------------------------------------------------*/
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55
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56 uint8_t extCPU2bootloader_start(uint8_t *version, uint16_t *chipID)
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57 {
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58 uint8_t aRxBuffer[256] = { 0 };
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59
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60 HAL_GPIO_WritePin(SMALLCPU_CSB_GPIO_PORT,SMALLCPU_CSB_PIN,GPIO_PIN_RESET);
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61
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62 boot_sync_frame();
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63 boot_get_version(aRxBuffer);
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64 *version = aRxBuffer[1];
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65 HAL_Delay(10);
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66 boot_get_id(aRxBuffer);
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67 *chipID = ((uint16_t)aRxBuffer[2]) << 8;
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68 *chipID += (uint16_t)aRxBuffer[3];
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69 HAL_Delay(10);
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70 if((*chipID == 0x431) && (*version > 10) && (*version < 32))
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71 return 1;
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72 else
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73 return 0;
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74 }
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75
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76
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77 uint8_t extCPU2bootloader_internal(uint8_t* buffer, uint32_t length, char* display_text)
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78 {
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79 uint8_t version = 0;
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80 uint16_t chipID = 0;
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81
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82 if(!extCPU2bootloader_start(&version,&chipID))
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83 return 0;
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84 if(!boot_erase_memory())
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85 return 0;
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86 HAL_Delay(100);
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87 uint16_t i=0;
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88 uint32_t lengthsave = length;
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89 uint8_t percent = 0;
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90
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91 while(length)
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92 {
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93 percent = (100 * (i * 256)) /lengthsave;
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94 tComm_verlauf(percent);
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95
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96 if(length > 256)
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97 {
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98 if( !boot_write_memory(0x08000000 + (i * 256), 255, &buffer[i * 256]) )
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99 return 0;;
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100 length -= 256;
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101
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102 }
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103 else
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104 {
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105 if(!boot_write_memory(0x08000000 + (i * 256), length - 1, &buffer[i * 256]))
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106 return 0;
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107 length = 0;
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108 }
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109 i++;
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110 }
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111 return 2;
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112 }
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113
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114
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115 uint8_t extCPU2bootloader(uint8_t* buffer, uint32_t length, char* display_text)
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116 {
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117 uint8_t result = 0;
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118
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119 MX_SmallCPU_Reset_To_Boot();
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120 result = extCPU2bootloader_internal(buffer,length,display_text);
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121 MX_SmallCPU_Reset_To_Standard();
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122 return result;
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123 }
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124
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125 /* Private functions --------------------------------------------------------*/
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126
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127 static uint8_t boot_sync_frame(void)
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128 {
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129 Bootloader_spi_single(0x5a);
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130 return boot_ack();
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131 }
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132
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133 static uint8_t boot_get_version(uint8_t *RxBuffer)
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134 {
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135 Bootloader_spi_single(0x5a);
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136 Bootloader_send_command(0x01);
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137 if(!boot_ack())
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138 return 0;
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139 Bootloader_spi(3, NULL, RxBuffer);
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140 return boot_ack();
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141 }
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142
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143
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144 static uint8_t boot_get_id(uint8_t *RxBuffer)
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145 {
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146 Bootloader_spi_single(0x5a);
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147 Bootloader_send_command(0x02);
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148 if(!boot_ack())
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149 return 0;
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150 Bootloader_spi(5, NULL, RxBuffer);
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151 return boot_ack();
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152 }
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153
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154
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155 uint8_t boot_write_memory(uint32_t address, uint8_t length_minus_1, uint8_t *data)
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156 {
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157 uint8_t addressNew[4];
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158 uint8_t checksum = 0;
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159 uint16_t length;
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160
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161 Bootloader_spi_single(0x5a);
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162 Bootloader_send_command(0x31);
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163 if(!boot_ack())
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164 return 1;
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165 HAL_Delay(5);
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166 addressNew[0] = (uint8_t)((address >> 24) & 0xFF);
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167 addressNew[1] = (uint8_t)((address >> 16) & 0xFF);
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168 addressNew[2] = (uint8_t)((address >> 8) & 0xFF);
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169 addressNew[3] = (uint8_t)((address >> 0) & 0xFF);
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170 Bootloader_spi(4, addressNew, NULL);
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171 checksum = 0;
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172 checksum ^= addressNew[0];
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173 checksum ^= addressNew[1];
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174 checksum ^= addressNew[2];
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175 checksum ^= addressNew[3];
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176 Bootloader_spi_single(checksum);
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177 if(!boot_ack())
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178 return 0;
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179 HAL_Delay(1);
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180 Bootloader_spi_single(length_minus_1);
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181 length = ((uint16_t)length_minus_1) + 1;
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182 Bootloader_spi(length, data, NULL);
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183 HAL_Delay(26);
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184 checksum = 0;
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185 checksum ^= length_minus_1;
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186 for(int i=0;i<length;i++)
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187 checksum ^= data[i];
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188 Bootloader_spi_single(checksum);
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189
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190 if(!boot_ack())
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191 return 0;
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192 HAL_Delay(1);
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193 return 1;
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194 }
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195
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196 static uint8_t boot_erase_memory(void)
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197 {
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198 uint8_t special_erase_with_checksum[3] = {0xFF, 0xFF, 0x00};
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199
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200 Bootloader_spi_single(0x5a);
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201 Bootloader_send_command(0x44);
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202 if(!boot_ack())
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203 return 0;
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204 Bootloader_spi(3, special_erase_with_checksum, NULL);
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205 HAL_Delay(11000); /* 5.5 to 11 seconds */
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206 if(!boot_ack())
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207 return 0;
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208 return 1;
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209 }
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210
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211 /* write unprotect does reset the system !! */
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212 uint8_t boot_write_unprotect(void)
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213 {
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214 Bootloader_spi_single(0x5a);
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215 Bootloader_send_command(0x73);
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216 if(!boot_ack())
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217 return 0;
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218 return boot_ack();
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219 }
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220
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221 static uint8_t boot_ack(void)
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222 {
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223 uint8_t answer = 0;
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224
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225 Bootloader_spi_single(0x00);
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226 for(int i=0; i< 1000; i++)
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227 {
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228 Bootloader_spi(1, NULL, &answer);
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229 if((answer == 0x79) || (answer == 0x1F))
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230 {
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231 Bootloader_spi_single(0x79);
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232 break;
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233 }
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234 HAL_Delay(10);
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235 }
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236 if(answer == 0x79)
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237 return 1;
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238 else
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239 return 0;
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240 }
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241
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242 static void Bootloader_send_command(uint8_t command)
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243 {
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244 uint8_t send[2];
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245 uint8_t receive[2];
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246
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247 send[0] = command;
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248 send[1] = 0xFF ^ command;
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249 Bootloader_spi(2, send, receive);
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250 }
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251
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252 static void Bootloader_spi_single(uint8_t TxByte)
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253 {
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254 Bootloader_spi(1,&TxByte, 0);
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255 }
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256
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257
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258 static void Bootloader_spi(uint16_t lengthData, uint8_t *aTxBuffer, uint8_t *aRxBuffer)
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259 {
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260 uint8_t dummy[256] = { 0 };
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261 uint8_t *tx_data;
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262 uint8_t *rx_data;
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263
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264 tx_data = aTxBuffer;
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265 rx_data = aRxBuffer;
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266
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267 if(aTxBuffer == NULL)
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268 tx_data = dummy;
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269 if(aRxBuffer == NULL)
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270 rx_data = dummy;
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271
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272 //HAL_GPIO_WritePin(OSCILLOSCOPE_GPIO_PORT,OSCILLOSCOPE_PIN,GPIO_PIN_RESET); // only for testing with Oscilloscope
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273
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274
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275 HAL_SPI_TransmitReceive(&cpu2DmaSpi, (uint8_t *)tx_data, (uint8_t *)rx_data, (uint16_t)lengthData,1000);
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276 /*
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277 if(HAL_SPI_TransmitReceive_DMA(&cpu2DmaSpi, (uint8_t *)tx_data, (uint8_t *)rx_data, (uint16_t)lengthData) != HAL_OK)
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278 if(HAL_SPI_TransmitReceive_DMA(&cpu2DmaSpi, (uint8_t *)tx_data, (uint8_t *)rx_data, (uint16_t)lengthData) != HAL_OK)
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279 Bootloader_Error_Handler();
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280
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281 while (HAL_SPI_GetState(&cpu2DmaSpi) != HAL_SPI_STATE_READY)// only for testing with Oscilloscope
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282 {
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283 }
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284 HAL_GPIO_WritePin(OSCILLOSCOPE_GPIO_PORT,OSCILLOSCOPE_PIN,GPIO_PIN_SET); // only for testing with Oscilloscope
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285 */
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286 }
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287
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288
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289 /*
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290 static void Bootloader_Error_Handler(void)
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291 {
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292 while(1);
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293 }
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294 */