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annotate Discovery/Src/externCPU2bootloader.c @ 586:bb5ce239741f
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| author | Ideenmodellierer |
|---|---|
| date | Sun, 13 Dec 2020 18:31:40 +0100 |
| parents | 5ca177d2df5d |
| children | 01f40cb1057e |
| rev | line source |
|---|---|
| 38 | 1 /** |
| 2 ****************************************************************************** | |
| 3 * @file externCPU2bootloader.c Template | |
| 4 * @author heinrichs weikamp gmbh | |
| 5 * @version V0.0.1 | |
| 6 * @date 23-Oct-2014 | |
| 7 * @version V0.0.1 | |
| 8 * @since 23-Oct-2014 | |
| 9 * @brief Main Template to communicate with the second CPU in bootloader mode | |
| 10 * bootloader ROM build by ST and defined in AN4286 | |
| 11 * | |
| 12 @verbatim | |
| 13 ============================================================================== | |
| 14 ##### How to use ##### | |
| 15 ============================================================================== | |
| 16 @endverbatim | |
| 17 ****************************************************************************** | |
| 18 * @attention | |
| 19 * | |
| 20 * <h2><center>© COPYRIGHT(c) 2016 heinrichs weikamp</center></h2> | |
| 21 * | |
| 22 ****************************************************************************** | |
| 23 */ | |
| 24 | |
| 25 /* Includes ------------------------------------------------------------------*/ | |
| 26 #include "stm32f4xx_hal.h" | |
| 27 #include "stdio.h" | |
| 28 #include "ostc.h" | |
| 29 #include "settings.h" | |
| 30 #include "externCPU2bootloader.h" | |
| 31 #include "externLogbookFlash.h" | |
| 32 #include "tComm.h" | |
| 33 | |
| 34 | |
| 35 /* Exported variables --------------------------------------------------------*/ | |
| 36 | |
| 37 /* Private types -------------------------------------------------------------*/ | |
| 38 | |
| 39 /* Private variables ---------------------------------------------------------*/ | |
| 40 | |
| 41 /* Private function prototypes -----------------------------------------------*/ | |
| 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 static void Bootloader_Error_Handler(void); |
| 38 | 53 |
| 54 /* Exported functions --------------------------------------------------------*/ | |
| 55 | |
| 56 uint8_t extCPU2bootloader_start(uint8_t *version, uint16_t *chipID) | |
| 57 { | |
| 58 uint8_t aRxBuffer[256] = { 0 }; | |
| 59 | |
| 60 HAL_GPIO_WritePin(SMALLCPU_CSB_GPIO_PORT,SMALLCPU_CSB_PIN,GPIO_PIN_RESET); | |
| 61 | |
| 62 boot_sync_frame(); | |
| 63 boot_get_version(aRxBuffer); | |
| 64 *version = aRxBuffer[1]; | |
| 65 HAL_Delay(10); | |
| 66 boot_get_id(aRxBuffer); | |
| 67 *chipID = ((uint16_t)aRxBuffer[2]) << 8; | |
| 68 *chipID += (uint16_t)aRxBuffer[3]; | |
| 69 HAL_Delay(10); | |
| 70 if((*chipID == 0x431) && (*version > 10) && (*version < 32)) | |
| 71 return 1; | |
| 72 else | |
| 73 return 0; | |
| 74 } | |
| 75 | |
| 76 | |
| 53 | 77 uint8_t extCPU2bootloader_internal(uint8_t* buffer, uint32_t length, char* display_text) |
| 38 | 78 { |
| 79 uint8_t version = 0; | |
| 80 uint16_t chipID = 0; | |
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81 |
| 38 | 82 if(!extCPU2bootloader_start(&version,&chipID)) |
| 83 return 0; | |
| 84 if(!boot_erase_memory()) | |
| 85 return 0; | |
| 86 HAL_Delay(100); | |
| 87 uint16_t i=0; | |
| 53 | 88 uint32_t lengthsave = length; |
| 38 | 89 uint8_t percent = 0; |
| 90 | |
| 91 while(length) | |
| 92 { | |
| 93 percent = (100 * (i * 256)) /lengthsave; | |
| 94 tComm_verlauf(percent); | |
| 95 | |
| 96 if(length > 256) | |
| 97 { | |
| 98 if( !boot_write_memory(0x08000000 + (i * 256), 255, &buffer[i * 256]) ) | |
| 99 return 0;; | |
| 100 length -= 256; | |
| 101 | |
| 102 } | |
| 103 else | |
| 104 { | |
| 105 if(!boot_write_memory(0x08000000 + (i * 256), length - 1, &buffer[i * 256])) | |
| 106 return 0; | |
| 107 length = 0; | |
| 108 } | |
| 109 i++; | |
| 110 } | |
| 111 return 2; | |
| 112 } | |
| 113 | |
| 114 | |
| 53 | 115 uint8_t extCPU2bootloader(uint8_t* buffer, uint32_t length, char* display_text) |
| 38 | 116 { |
| 117 uint8_t result = 0; | |
| 118 | |
| 119 MX_SmallCPU_Reset_To_Boot(); | |
| 120 result = extCPU2bootloader_internal(buffer,length,display_text); | |
| 121 MX_SmallCPU_Reset_To_Standard(); | |
| 122 return result; | |
| 123 } | |
| 124 | |
| 125 /* Private functions --------------------------------------------------------*/ | |
| 126 | |
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127 static uint8_t boot_sync_frame(void) |
| 38 | 128 { |
| 129 Bootloader_spi_single(0x5a); | |
| 130 return boot_ack(); | |
| 131 } | |
| 132 | |
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133 static uint8_t boot_get_version(uint8_t *RxBuffer) |
| 38 | 134 { |
| 135 Bootloader_spi_single(0x5a); | |
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136 Bootloader_send_command(0x01); |
| 38 | 137 if(!boot_ack()) |
| 138 return 0; | |
| 139 Bootloader_spi(3, NULL, RxBuffer); | |
| 140 return boot_ack(); | |
| 141 } | |
| 142 | |
| 143 | |
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144 static uint8_t boot_get_id(uint8_t *RxBuffer) |
| 38 | 145 { |
| 146 Bootloader_spi_single(0x5a); | |
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147 Bootloader_send_command(0x02); |
| 38 | 148 if(!boot_ack()) |
| 149 return 0; | |
| 150 Bootloader_spi(5, NULL, RxBuffer); | |
| 151 return boot_ack(); | |
| 152 } | |
| 153 | |
| 154 | |
| 155 uint8_t boot_write_memory(uint32_t address, uint8_t length_minus_1, uint8_t *data) | |
| 156 { | |
| 157 uint8_t addressNew[4]; | |
| 158 uint8_t checksum = 0; | |
| 159 uint16_t length; | |
| 160 | |
| 161 Bootloader_spi_single(0x5a); | |
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162 Bootloader_send_command(0x31); |
| 38 | 163 if(!boot_ack()) |
| 164 return 1; | |
| 165 HAL_Delay(5); | |
| 166 addressNew[0] = (uint8_t)((address >> 24) & 0xFF); | |
| 167 addressNew[1] = (uint8_t)((address >> 16) & 0xFF); | |
| 168 addressNew[2] = (uint8_t)((address >> 8) & 0xFF); | |
| 169 addressNew[3] = (uint8_t)((address >> 0) & 0xFF); | |
| 170 Bootloader_spi(4, addressNew, NULL); | |
| 171 checksum = 0; | |
| 172 checksum ^= addressNew[0]; | |
| 173 checksum ^= addressNew[1]; | |
| 174 checksum ^= addressNew[2]; | |
| 175 checksum ^= addressNew[3]; | |
| 176 Bootloader_spi_single(checksum); | |
| 177 if(!boot_ack()) | |
| 178 return 0; | |
| 179 HAL_Delay(1); | |
| 180 Bootloader_spi_single(length_minus_1); | |
| 181 length = ((uint16_t)length_minus_1) + 1; | |
| 182 Bootloader_spi(length, data, NULL); | |
| 183 HAL_Delay(26); | |
| 184 checksum = 0; | |
| 185 checksum ^= length_minus_1; | |
| 186 for(int i=0;i<length;i++) | |
| 187 checksum ^= data[i]; | |
| 188 Bootloader_spi_single(checksum); | |
| 189 | |
| 190 if(!boot_ack()) | |
| 191 return 0; | |
| 192 HAL_Delay(1); | |
| 193 return 1; | |
| 194 } | |
| 195 | |
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196 static uint8_t boot_erase_memory(void) |
| 38 | 197 { |
| 198 uint8_t special_erase_with_checksum[3] = {0xFF, 0xFF, 0x00}; | |
| 199 | |
| 200 Bootloader_spi_single(0x5a); | |
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201 Bootloader_send_command(0x44); |
| 38 | 202 if(!boot_ack()) |
| 203 return 0; | |
| 204 Bootloader_spi(3, special_erase_with_checksum, NULL); | |
| 205 HAL_Delay(11000); /* 5.5 to 11 seconds */ | |
| 206 if(!boot_ack()) | |
| 207 return 0; | |
| 208 return 1; | |
| 209 } | |
| 210 | |
| 211 /* write unprotect does reset the system !! */ | |
| 212 uint8_t boot_write_unprotect(void) | |
| 213 { | |
| 214 Bootloader_spi_single(0x5a); | |
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215 Bootloader_send_command(0x73); |
| 38 | 216 if(!boot_ack()) |
| 217 return 0; | |
| 218 return boot_ack(); | |
| 219 } | |
| 220 | |
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221 static uint8_t boot_ack(void) |
| 38 | 222 { |
| 223 uint8_t answer = 0; | |
| 224 | |
| 225 Bootloader_spi_single(0x00); | |
| 226 for(int i=0; i< 1000; i++) | |
| 227 { | |
| 228 Bootloader_spi(1, NULL, &answer); | |
| 229 if((answer == 0x79) || (answer == 0x1F)) | |
| 230 { | |
| 231 Bootloader_spi_single(0x79); | |
| 232 break; | |
| 233 } | |
| 234 HAL_Delay(10); | |
| 235 } | |
| 236 if(answer == 0x79) | |
| 237 return 1; | |
| 238 else | |
| 239 return 0; | |
| 240 } | |
| 241 | |
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242 static void Bootloader_send_command(uint8_t command) |
| 38 | 243 { |
| 244 uint8_t send[2]; | |
| 245 uint8_t receive[2]; | |
| 246 | |
| 247 send[0] = command; | |
| 248 send[1] = 0xFF ^ command; | |
| 249 Bootloader_spi(2, send, receive); | |
| 250 } | |
| 251 | |
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252 static void Bootloader_spi_single(uint8_t TxByte) |
| 38 | 253 { |
| 254 Bootloader_spi(1,&TxByte, 0); | |
| 255 } | |
| 256 | |
| 257 | |
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258 static void Bootloader_spi(uint16_t lengthData, uint8_t *aTxBuffer, uint8_t *aRxBuffer) |
| 38 | 259 { |
| 260 uint8_t dummy[256] = { 0 }; | |
| 261 uint8_t *tx_data; | |
| 262 uint8_t *rx_data; | |
| 263 | |
| 264 tx_data = aTxBuffer; | |
| 265 rx_data = aRxBuffer; | |
| 266 | |
| 267 if(aTxBuffer == NULL) | |
| 268 tx_data = dummy; | |
| 269 if(aRxBuffer == NULL) | |
| 270 rx_data = dummy; | |
| 271 | |
| 272 //HAL_GPIO_WritePin(OSCILLOSCOPE_GPIO_PORT,OSCILLOSCOPE_PIN,GPIO_PIN_RESET); // only for testing with Oscilloscope | |
| 273 | |
| 274 | |
| 275 HAL_SPI_TransmitReceive(&cpu2DmaSpi, (uint8_t *)tx_data, (uint8_t *)rx_data, (uint16_t)lengthData,1000); | |
| 276 /* | |
| 277 if(HAL_SPI_TransmitReceive_DMA(&cpu2DmaSpi, (uint8_t *)tx_data, (uint8_t *)rx_data, (uint16_t)lengthData) != HAL_OK) | |
| 278 if(HAL_SPI_TransmitReceive_DMA(&cpu2DmaSpi, (uint8_t *)tx_data, (uint8_t *)rx_data, (uint16_t)lengthData) != HAL_OK) | |
| 279 Bootloader_Error_Handler(); | |
| 280 | |
| 281 while (HAL_SPI_GetState(&cpu2DmaSpi) != HAL_SPI_STATE_READY)// only for testing with Oscilloscope | |
| 282 { | |
| 283 } | |
| 284 HAL_GPIO_WritePin(OSCILLOSCOPE_GPIO_PORT,OSCILLOSCOPE_PIN,GPIO_PIN_SET); // only for testing with Oscilloscope | |
| 285 */ | |
| 286 } | |
| 287 | |
| 288 | |
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289 static void Bootloader_Error_Handler(void) |
| 38 | 290 { |
| 291 while(1); | |
| 292 } |