annotate Small_CPU/Src/tm_stm32f4_otp.c @ 265:a91d99265884 IPC_Sync_Improvment_2

Increase SPI com timeout for cold start and wake up There are use cases which cause the startup at Main to be longer than 300ms. In that case error reaction on RTE side would take place even if not needed. On the other hand having an longer timeout delays timeout detection and therefor the time till connection is reestablished => Added function to separate startup from common operation use case
author ideenmodellierer
date Sun, 14 Apr 2019 14:22:41 +0200
parents 5f11787b4f42
children
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38
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1 /**
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2 * |----------------------------------------------------------------------
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3 * | Copyright (C) Tilen Majerle, 2014
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4 * |
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5 * | This program is free software: you can redistribute it and/or modify
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6 * | it under the terms of the GNU General Public License as published by
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7 * | the Free Software Foundation, either version 3 of the License, or
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8 * | any later version.
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9 * |
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10 * | This program is distributed in the hope that it will be useful,
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11 * | but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * | GNU General Public License for more details.
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14 * |
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15 * | You should have received a copy of the GNU General Public License
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16 * | along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 * |----------------------------------------------------------------------
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18 */
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19 #include "tm_stm32f4_otp.h"
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20
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21 HAL_StatusTypeDef TM_OTP_Write(uint8_t block, uint8_t byte, uint8_t data)
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22 {
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23 HAL_StatusTypeDef answer;
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24
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25 /* Check input parameters */
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26 if (
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27 block >= OTP_BLOCKS ||
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28 byte >= OTP_BYTES_IN_BLOCK
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29 ) {
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30 /* Invalid parameters */
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31 return HAL_ERROR;
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32 }
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33
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34 if(*(uint8_t *)(OTP_START_ADDR + block * OTP_BYTES_IN_BLOCK + byte) != 0xFF)
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35 return HAL_ERROR;
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36
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37 /* Unlock FLASH */
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38 HAL_FLASH_Unlock();
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39
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40 answer = HAL_FLASH_Program(FLASH_TYPEPROGRAM_BYTE, (OTP_START_ADDR + block * OTP_BYTES_IN_BLOCK + byte), data);
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41
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42 /* Lock FLASH */
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43 HAL_FLASH_Lock();
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44
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45 return answer;
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46 }
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47
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48
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49 uint8_t TM_OTP_Read(uint8_t block, uint8_t byte) {
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50 uint8_t data;
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51
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52 /* Check input parameters */
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53 if (
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54 block >= OTP_BLOCKS ||
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55 byte >= OTP_BYTES_IN_BLOCK
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56 ) {
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57 /* Invalid parameters */
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58 return HAL_ERROR;
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59 }
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60
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61 /* Get value */
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62 data = *(__IO uint8_t *)(OTP_START_ADDR + block * OTP_BYTES_IN_BLOCK + byte);
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63
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64 /* Return data */
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65 return data;
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66 }