annotate Discovery/Src/externCPU2bootloader.c @ 250:822416168585 bm-2

Buelmann: new implementation for ceiling Since my first functional fix in the ceiling computation in commit ceecabfddb57, I noticed that the computation used a linear search, that became rather computational expensive after that commit. The simple question is: why not a binary search? So, this commit implements the binary search. But there is a long story attached to this. Comparing ceiling results from hwOS and this OSTC4 code were very different. Basically, the original OSTC4 algorithm computed the ceiling using the same GFlow to GFhigh slope, in such a way, that the ceiling was in sync with the presented deco stops, where the hwOS code presents a GFhigh based ceiling. This said, it is more logical when the OSTC4 and hwOS code give similar results. This new recursive algorithm gives very similar results for the ceiling compared to hwOS. To be complete here, the Buelmann ceiling is the depth to which you can ascend, so that the leading tissue reaches GFhigh. This also explains why the deepest deco stop is normally deeper than the ceiling (unless one dives with GF like 80/80). The code implemented here is rather straightforward recursion. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Thu, 11 Apr 2019 17:48:48 +0200
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