annotate Discovery/Src/externCPU2bootloader.c @ 121:0d97971b771b FlipDisplay

Use 32bit operations for buffer fills
author Ideenmodellierer
date Sun, 13 Jan 2019 18:58:23 +0100
parents f64cf099a7f5
children 5ca177d2df5d
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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 #define BOOTLOADSPITIMEOUT 5000
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39
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40 /* Private variables ---------------------------------------------------------*/
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41
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42 /* Private function prototypes -----------------------------------------------*/
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43
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44 uint8_t boot_sync_frame(void);
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45 uint8_t boot_ack(void);
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46 uint8_t boot_get(uint8_t *RxBuffer);
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47 uint8_t boot_get_id(uint8_t *RxBuffer);
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48 uint8_t boot_get_version(uint8_t *RxBuffer);
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49 //uint8_t boot_go(uint32_t address);
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50 uint8_t boot_write_memory(uint32_t address, uint8_t length_minus_1, uint8_t *data);
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51 //uint8_t boot_erase_memory(uint16_t data_frame, uint16_t *page_numbers);
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52 uint8_t boot_erase_memory(void);
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53 uint8_t boot_write_protect(uint8_t number_of_sectors_minus_one, uint8_t *sector_codes);
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54 /*
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55 uint8_t boot_write_unprotect(void);
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56 uint8_t boot_readout_protect(void);
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57 uint8_t boot_readout_unprotect(void);
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58 */
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59 void Bootoader_send_command(uint8_t command);
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60 void Bootloader_spi_single(uint8_t TxByte);
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61 void Bootloader_spi(uint16_t lengthData, uint8_t *aTxBuffer, uint8_t *aRxBuffer);
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62 void Bootloader_Error_Handler(void);
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63
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64 /* Exported functions --------------------------------------------------------*/
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65
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66 uint8_t extCPU2bootloader_start(uint8_t *version, uint16_t *chipID)
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67 {
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68 // uint8_t aTxBuffer[256] = { 0 };
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69 uint8_t aRxBuffer[256] = { 0 };
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70
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71 HAL_GPIO_WritePin(SMALLCPU_CSB_GPIO_PORT,SMALLCPU_CSB_PIN,GPIO_PIN_RESET);
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72
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73 boot_sync_frame();
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74 boot_get_version(aRxBuffer);
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75 *version = aRxBuffer[1];
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76 HAL_Delay(10);
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77 boot_get_id(aRxBuffer);
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78 *chipID = ((uint16_t)aRxBuffer[2]) << 8;
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79 *chipID += (uint16_t)aRxBuffer[3];
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80 HAL_Delay(10);
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81 if((*chipID == 0x431) && (*version > 10) && (*version < 32))
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82 return 1;
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83 else
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84 return 0;
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85 }
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86
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87
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88 uint8_t extCPU2bootloader_internal(uint8_t* buffer, uint32_t length, char* display_text)
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89 {
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90 uint8_t version = 0;
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91 uint16_t chipID = 0;
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92 // uint8_t ret;
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93 if(!extCPU2bootloader_start(&version,&chipID))
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94 return 0;
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95 if(!boot_erase_memory())
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96 return 0;
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97 HAL_Delay(100);
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98 uint16_t i=0;
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99 uint32_t lengthsave = length;
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100 uint8_t percent = 0;
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101
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102 while(length)
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103 {
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104 percent = (100 * (i * 256)) /lengthsave;
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105 tComm_verlauf(percent);
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106
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107 if(length > 256)
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108 {
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109 if( !boot_write_memory(0x08000000 + (i * 256), 255, &buffer[i * 256]) )
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110 return 0;;
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111 length -= 256;
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112
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113 }
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114 else
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115 {
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116 if(!boot_write_memory(0x08000000 + (i * 256), length - 1, &buffer[i * 256]))
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117 return 0;
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118 length = 0;
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119 }
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120 i++;
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121 }
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122 return 2;
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123 }
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124
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125
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126 uint8_t extCPU2bootloader(uint8_t* buffer, uint32_t length, char* display_text)
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127 {
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128 uint8_t result = 0;
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129
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130 MX_SmallCPU_Reset_To_Boot();
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131 result = extCPU2bootloader_internal(buffer,length,display_text);
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132 MX_SmallCPU_Reset_To_Standard();
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133 return result;
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134 }
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135
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136 /* Private functions --------------------------------------------------------*/
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137
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138 uint8_t boot_sync_frame(void)
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139 {
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140 Bootloader_spi_single(0x5a);
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141 return boot_ack();
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142 }
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143
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144
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145 uint8_t boot_get(uint8_t *RxBuffer)
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146 {
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147 Bootloader_spi_single(0x5a);
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148 Bootoader_send_command(0x00);
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149 if(!boot_ack())
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150 return 0;
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151 Bootloader_spi(14, NULL, RxBuffer);
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152 return boot_ack();
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153 }
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154
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155
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156 uint8_t boot_get_version(uint8_t *RxBuffer)
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157 {
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158 Bootloader_spi_single(0x5a);
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159 Bootoader_send_command(0x01);
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160 if(!boot_ack())
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161 return 0;
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162 Bootloader_spi(3, NULL, RxBuffer);
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163 return boot_ack();
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164 }
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165
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166
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167 uint8_t boot_get_id(uint8_t *RxBuffer)
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168 {
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169 Bootloader_spi_single(0x5a);
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170 Bootoader_send_command(0x02);
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171 if(!boot_ack())
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172 return 0;
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173 Bootloader_spi(5, NULL, RxBuffer);
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174 return boot_ack();
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175 }
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176
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177 /*
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178 uint8_t boot_go(uint32_t address)
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179 {
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180
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181 }
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182 */
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183
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184
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185 uint8_t boot_write_memory(uint32_t address, uint8_t length_minus_1, uint8_t *data)
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186 {
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187 uint8_t addressNew[4];
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188 uint8_t checksum = 0;
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189 uint16_t length;
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190
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191 Bootloader_spi_single(0x5a);
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192 Bootoader_send_command(0x31);
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193 if(!boot_ack())
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194 return 1;
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195 HAL_Delay(5);
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196 addressNew[0] = (uint8_t)((address >> 24) & 0xFF);
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197 addressNew[1] = (uint8_t)((address >> 16) & 0xFF);
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198 addressNew[2] = (uint8_t)((address >> 8) & 0xFF);
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199 addressNew[3] = (uint8_t)((address >> 0) & 0xFF);
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200 Bootloader_spi(4, addressNew, NULL);
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201 checksum = 0;
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202 checksum ^= addressNew[0];
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203 checksum ^= addressNew[1];
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204 checksum ^= addressNew[2];
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205 checksum ^= addressNew[3];
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206 Bootloader_spi_single(checksum);
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207 if(!boot_ack())
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208 return 0;
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209 HAL_Delay(1);
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210 Bootloader_spi_single(length_minus_1);
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211 length = ((uint16_t)length_minus_1) + 1;
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212 Bootloader_spi(length, data, NULL);
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213 HAL_Delay(26);
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214 checksum = 0;
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215 checksum ^= length_minus_1;
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216 for(int i=0;i<length;i++)
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217 checksum ^= data[i];
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218 Bootloader_spi_single(checksum);
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219
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220 if(!boot_ack())
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221 return 0;
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222 HAL_Delay(1);
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223 return 1;
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224 }
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225
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226 //uint8_t boot_erase_memory(uint16_t data_frame, uint16_t *page_numbers)
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227 uint8_t boot_erase_memory(void)
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228 {
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229 uint8_t special_erase_with_checksum[3] = {0xFF, 0xFF, 0x00};
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230
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231 Bootloader_spi_single(0x5a);
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232 Bootoader_send_command(0x44);
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233 if(!boot_ack())
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234 return 0;
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235 Bootloader_spi(3, special_erase_with_checksum, NULL);
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236 HAL_Delay(11000); /* 5.5 to 11 seconds */
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237 if(!boot_ack())
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238 return 0;
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239 return 1;
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240 }
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241
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242 /* write unprotect does reset the system !! */
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243 uint8_t boot_write_unprotect(void)
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244 {
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245 Bootloader_spi_single(0x5a);
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246 Bootoader_send_command(0x73);
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247 if(!boot_ack())
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248 return 0;
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249 return boot_ack();
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250 }
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251
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252 /*
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253 uint8_t boot_write_protect(uint8_t number_of_sectors_minus_one, uint8_t *sector_codes)
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254 {
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255
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256 }
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257
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258 uint8_t boot_readout_protect(void)
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259 {
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260
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261 }
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262
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263 uint8_t boot_readout_unprotect(void)
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264 {
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265
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266 }
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267 */
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268
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269 uint8_t boot_ack(void)
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270 {
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271 uint8_t answer = 0;
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272
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273 Bootloader_spi_single(0x00);
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274 for(int i=0; i< 1000; i++)
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275 {
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276 Bootloader_spi(1, NULL, &answer);
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277 if((answer == 0x79) || (answer == 0x1F))
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278 {
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279 Bootloader_spi_single(0x79);
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280 break;
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281 }
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282 HAL_Delay(10);
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283 }
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284 if(answer == 0x79)
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285 return 1;
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286 else
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287 return 0;
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288 }
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289
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290 void Bootoader_send_command(uint8_t command)
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291 {
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292 uint8_t send[2];
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293 uint8_t receive[2];
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294
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295 send[0] = command;
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296 send[1] = 0xFF ^ command;
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297 Bootloader_spi(2, send, receive);
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298 }
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299
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300 void Bootloader_spi_single(uint8_t TxByte)
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301 {
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302 Bootloader_spi(1,&TxByte, 0);
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303 }
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304
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305
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306 void Bootloader_spi(uint16_t lengthData, uint8_t *aTxBuffer, uint8_t *aRxBuffer)
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307 {
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308 uint8_t dummy[256] = { 0 };
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309 uint8_t *tx_data;
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310 uint8_t *rx_data;
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311
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312 tx_data = aTxBuffer;
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313 rx_data = aRxBuffer;
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314
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315 if(aTxBuffer == NULL)
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316 tx_data = dummy;
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317 if(aRxBuffer == NULL)
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318 rx_data = dummy;
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319
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320 //HAL_GPIO_WritePin(OSCILLOSCOPE_GPIO_PORT,OSCILLOSCOPE_PIN,GPIO_PIN_RESET); // only for testing with Oscilloscope
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321
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322
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323 HAL_SPI_TransmitReceive(&cpu2DmaSpi, (uint8_t *)tx_data, (uint8_t *)rx_data, (uint16_t)lengthData,1000);
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324 /*
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325 if(HAL_SPI_TransmitReceive_DMA(&cpu2DmaSpi, (uint8_t *)tx_data, (uint8_t *)rx_data, (uint16_t)lengthData) != HAL_OK)
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326 if(HAL_SPI_TransmitReceive_DMA(&cpu2DmaSpi, (uint8_t *)tx_data, (uint8_t *)rx_data, (uint16_t)lengthData) != HAL_OK)
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327 Bootloader_Error_Handler();
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328
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329 while (HAL_SPI_GetState(&cpu2DmaSpi) != HAL_SPI_STATE_READY)// only for testing with Oscilloscope
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330 {
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331 }
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332 HAL_GPIO_WritePin(OSCILLOSCOPE_GPIO_PORT,OSCILLOSCOPE_PIN,GPIO_PIN_SET); // only for testing with Oscilloscope
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333 */
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334 }
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335
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336
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337 void Bootloader_Error_Handler(void)
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338 {
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339 while(1);
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340 }
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341
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342
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343