Seeed / Mbed 2 deprecated Seeed_Tiny_BLE_Get_Started

To get started with Seeed Tiny BLE, include detecting motion, button and battery level.

Dependencies:   BLE_API eMPL_MPU6050 mbed nRF51822

nRF51822/nordic-sdk/components/drivers_nrf/ble_flash/ble_flash.c@1:fc2f9d636751, 2015-04-22 (annotated)

Committer:
yihui
Date:
Wed Apr 22 07:47:17 2015 +0000
Revision:
1:fc2f9d636751
update libraries; ; delete nRF51822/nordic-sdk/components/gpiote/app_gpiote.c to solve GPIOTE_IRQHandler multiply defined issue. temperarily change nRF51822 library to folder

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 1:fc2f9d636751 1 /* Copyright (c) 2012 Nordic Semiconductor. All Rights Reserved.
yihui 1:fc2f9d636751 2 *
yihui 1:fc2f9d636751 3 * The information contained herein is property of Nordic Semiconductor ASA.
yihui 1:fc2f9d636751 4 * Terms and conditions of usage are described in detail in NORDIC
yihui 1:fc2f9d636751 5 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
yihui 1:fc2f9d636751 6 *
yihui 1:fc2f9d636751 7 * Licensees are granted free, non-transferable use of the information. NO
yihui 1:fc2f9d636751 8 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
yihui 1:fc2f9d636751 9 * the file.
yihui 1:fc2f9d636751 10 *
yihui 1:fc2f9d636751 11 */
yihui 1:fc2f9d636751 12
yihui 1:fc2f9d636751 13 #include "ble_flash.h"
yihui 1:fc2f9d636751 14 #include <stdlib.h>
yihui 1:fc2f9d636751 15 #include <stdint.h>
yihui 1:fc2f9d636751 16 #include <string.h>
yihui 1:fc2f9d636751 17 #include "nrf_soc.h"
yihui 1:fc2f9d636751 18 #include "nordic_common.h"
yihui 1:fc2f9d636751 19 #include "nrf_error.h"
yihui 1:fc2f9d636751 20 #include "nrf.h"
yihui 1:fc2f9d636751 21 #include "nrf51_bitfields.h"
yihui 1:fc2f9d636751 22 #include "app_util.h"
yihui 1:fc2f9d636751 23
yihui 1:fc2f9d636751 24
yihui 1:fc2f9d636751 25 static volatile bool m_radio_active = false; /**< TRUE if radio is active (or about to become active), FALSE otherwise. */
yihui 1:fc2f9d636751 26
yihui 1:fc2f9d636751 27
yihui 1:fc2f9d636751 28 uint16_t ble_flash_crc16_compute(uint8_t * p_data, uint16_t size, uint16_t * p_crc)
yihui 1:fc2f9d636751 29 {
yihui 1:fc2f9d636751 30 uint16_t i;
yihui 1:fc2f9d636751 31 uint16_t crc = (p_crc == NULL) ? 0xffff : *p_crc;
yihui 1:fc2f9d636751 32
yihui 1:fc2f9d636751 33 for (i = 0; i < size; i++)
yihui 1:fc2f9d636751 34 {
yihui 1:fc2f9d636751 35 crc = (unsigned char)(crc >> 8) | (crc << 8);
yihui 1:fc2f9d636751 36 crc ^= p_data[i];
yihui 1:fc2f9d636751 37 crc ^= (unsigned char)(crc & 0xff) >> 4;
yihui 1:fc2f9d636751 38 crc ^= (crc << 8) << 4;
yihui 1:fc2f9d636751 39 crc ^= ((crc & 0xff) << 4) << 1;
yihui 1:fc2f9d636751 40 }
yihui 1:fc2f9d636751 41 return crc;
yihui 1:fc2f9d636751 42 }
yihui 1:fc2f9d636751 43
yihui 1:fc2f9d636751 44
yihui 1:fc2f9d636751 45 /**@brief Function for erasing a page in flash.
yihui 1:fc2f9d636751 46 *
yihui 1:fc2f9d636751 47 * @param[in] p_page Pointer to first word in page to be erased.
yihui 1:fc2f9d636751 48 */
yihui 1:fc2f9d636751 49 static void flash_page_erase(uint32_t * p_page)
yihui 1:fc2f9d636751 50 {
yihui 1:fc2f9d636751 51 // Turn on flash erase enable and wait until the NVMC is ready.
yihui 1:fc2f9d636751 52 NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Een << NVMC_CONFIG_WEN_Pos);
yihui 1:fc2f9d636751 53 while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
yihui 1:fc2f9d636751 54 {
yihui 1:fc2f9d636751 55 // Do nothing.
yihui 1:fc2f9d636751 56 }
yihui 1:fc2f9d636751 57
yihui 1:fc2f9d636751 58 // Erase page.
yihui 1:fc2f9d636751 59 NRF_NVMC->ERASEPAGE = (uint32_t)p_page;
yihui 1:fc2f9d636751 60 while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
yihui 1:fc2f9d636751 61 {
yihui 1:fc2f9d636751 62 // Do nothing.
yihui 1:fc2f9d636751 63 }
yihui 1:fc2f9d636751 64
yihui 1:fc2f9d636751 65 // Turn off flash erase enable and wait until the NVMC is ready.
yihui 1:fc2f9d636751 66 NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);
yihui 1:fc2f9d636751 67 while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
yihui 1:fc2f9d636751 68 {
yihui 1:fc2f9d636751 69 // Do nothing
yihui 1:fc2f9d636751 70 }
yihui 1:fc2f9d636751 71 }
yihui 1:fc2f9d636751 72
yihui 1:fc2f9d636751 73
yihui 1:fc2f9d636751 74 /**@brief Function for writing one word to flash. Unprotected write, which can interfere with radio communication.
yihui 1:fc2f9d636751 75 *
yihui 1:fc2f9d636751 76 * @details This function DOES NOT use the m_radio_active variable, but will force the write even
yihui 1:fc2f9d636751 77 * when the radio is active. To be used only from @ref ble_flash_page_write.
yihui 1:fc2f9d636751 78 *
yihui 1:fc2f9d636751 79 * @note Flash location to be written must have been erased previously.
yihui 1:fc2f9d636751 80 *
yihui 1:fc2f9d636751 81 * @param[in] p_address Pointer to flash location to be written.
yihui 1:fc2f9d636751 82 * @param[in] value Value to write to flash.
yihui 1:fc2f9d636751 83 */
yihui 1:fc2f9d636751 84 static void flash_word_unprotected_write(uint32_t * p_address, uint32_t value)
yihui 1:fc2f9d636751 85 {
yihui 1:fc2f9d636751 86 // Turn on flash write enable and wait until the NVMC is ready.
yihui 1:fc2f9d636751 87 NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos);
yihui 1:fc2f9d636751 88 while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
yihui 1:fc2f9d636751 89 {
yihui 1:fc2f9d636751 90 // Do nothing.
yihui 1:fc2f9d636751 91 }
yihui 1:fc2f9d636751 92 *p_address = value;
yihui 1:fc2f9d636751 93
yihui 1:fc2f9d636751 94 // Wait flash write to finish
yihui 1:fc2f9d636751 95 while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
yihui 1:fc2f9d636751 96 {
yihui 1:fc2f9d636751 97 // Do nothing.
yihui 1:fc2f9d636751 98 }
yihui 1:fc2f9d636751 99
yihui 1:fc2f9d636751 100 // Turn off flash write enable and wait until the NVMC is ready.
yihui 1:fc2f9d636751 101 NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);
yihui 1:fc2f9d636751 102 while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
yihui 1:fc2f9d636751 103 {
yihui 1:fc2f9d636751 104 // Do nothing.
yihui 1:fc2f9d636751 105 }
yihui 1:fc2f9d636751 106 }
yihui 1:fc2f9d636751 107
yihui 1:fc2f9d636751 108
yihui 1:fc2f9d636751 109 /**@brief Function for writing one word to flash.
yihui 1:fc2f9d636751 110 *
yihui 1:fc2f9d636751 111 * @note Flash location to be written must have been erased previously.
yihui 1:fc2f9d636751 112 *
yihui 1:fc2f9d636751 113 * @param[in] p_address Pointer to flash location to be written.
yihui 1:fc2f9d636751 114 * @param[in] value Value to write to flash.
yihui 1:fc2f9d636751 115 */
yihui 1:fc2f9d636751 116 static void flash_word_write(uint32_t * p_address, uint32_t value)
yihui 1:fc2f9d636751 117 {
yihui 1:fc2f9d636751 118 // If radio is active, wait for it to become inactive.
yihui 1:fc2f9d636751 119 while (m_radio_active)
yihui 1:fc2f9d636751 120 {
yihui 1:fc2f9d636751 121 // Do nothing (just wait for radio to become inactive).
yihui 1:fc2f9d636751 122 (void) sd_app_evt_wait();
yihui 1:fc2f9d636751 123 }
yihui 1:fc2f9d636751 124
yihui 1:fc2f9d636751 125 // Turn on flash write enable and wait until the NVMC is ready.
yihui 1:fc2f9d636751 126 NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos);
yihui 1:fc2f9d636751 127 while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
yihui 1:fc2f9d636751 128 {
yihui 1:fc2f9d636751 129 // Do nothing.
yihui 1:fc2f9d636751 130 }
yihui 1:fc2f9d636751 131
yihui 1:fc2f9d636751 132 *p_address = value;
yihui 1:fc2f9d636751 133 // Wait flash write to finish
yihui 1:fc2f9d636751 134 while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
yihui 1:fc2f9d636751 135 {
yihui 1:fc2f9d636751 136 // Do nothing.
yihui 1:fc2f9d636751 137 }
yihui 1:fc2f9d636751 138 // Turn off flash write enable and wait until the NVMC is ready.
yihui 1:fc2f9d636751 139 NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);
yihui 1:fc2f9d636751 140 while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
yihui 1:fc2f9d636751 141 {
yihui 1:fc2f9d636751 142 // Do nothing
yihui 1:fc2f9d636751 143 }
yihui 1:fc2f9d636751 144 }
yihui 1:fc2f9d636751 145
yihui 1:fc2f9d636751 146
yihui 1:fc2f9d636751 147 uint32_t ble_flash_word_write(uint32_t * p_address, uint32_t value)
yihui 1:fc2f9d636751 148 {
yihui 1:fc2f9d636751 149 flash_word_write(p_address, value);
yihui 1:fc2f9d636751 150 return NRF_SUCCESS;
yihui 1:fc2f9d636751 151 }
yihui 1:fc2f9d636751 152
yihui 1:fc2f9d636751 153
yihui 1:fc2f9d636751 154 uint32_t ble_flash_block_write(uint32_t * p_address, uint32_t * p_in_array, uint16_t word_count)
yihui 1:fc2f9d636751 155 {
yihui 1:fc2f9d636751 156 uint16_t i;
yihui 1:fc2f9d636751 157
yihui 1:fc2f9d636751 158 for (i = 0; i < word_count; i++)
yihui 1:fc2f9d636751 159 {
yihui 1:fc2f9d636751 160 flash_word_write(p_address, p_in_array[i]);
yihui 1:fc2f9d636751 161 p_address++;
yihui 1:fc2f9d636751 162 }
yihui 1:fc2f9d636751 163
yihui 1:fc2f9d636751 164 return NRF_SUCCESS;
yihui 1:fc2f9d636751 165 }
yihui 1:fc2f9d636751 166
yihui 1:fc2f9d636751 167
yihui 1:fc2f9d636751 168 uint32_t ble_flash_page_erase(uint8_t page_num)
yihui 1:fc2f9d636751 169 {
yihui 1:fc2f9d636751 170 uint32_t * p_page = (uint32_t *)(BLE_FLASH_PAGE_SIZE * page_num);
yihui 1:fc2f9d636751 171 flash_page_erase(p_page);
yihui 1:fc2f9d636751 172
yihui 1:fc2f9d636751 173 return NRF_SUCCESS;
yihui 1:fc2f9d636751 174 }
yihui 1:fc2f9d636751 175
yihui 1:fc2f9d636751 176
yihui 1:fc2f9d636751 177 uint32_t ble_flash_page_write(uint8_t page_num, uint32_t * p_in_array, uint8_t word_count)
yihui 1:fc2f9d636751 178 {
yihui 1:fc2f9d636751 179 int i;
yihui 1:fc2f9d636751 180 uint32_t * p_page;
yihui 1:fc2f9d636751 181 uint32_t * p_curr_addr;
yihui 1:fc2f9d636751 182 uint16_t in_data_crc;
yihui 1:fc2f9d636751 183 uint16_t flash_crc;
yihui 1:fc2f9d636751 184 uint32_t flash_header;
yihui 1:fc2f9d636751 185
yihui 1:fc2f9d636751 186 p_page = (uint32_t *)(BLE_FLASH_PAGE_SIZE * page_num);
yihui 1:fc2f9d636751 187 p_curr_addr = p_page;
yihui 1:fc2f9d636751 188
yihui 1:fc2f9d636751 189 // Calculate CRC of the data to write.
yihui 1:fc2f9d636751 190 in_data_crc = ble_flash_crc16_compute((uint8_t *)p_in_array,
yihui 1:fc2f9d636751 191 word_count * sizeof(uint32_t),
yihui 1:fc2f9d636751 192 NULL);
yihui 1:fc2f9d636751 193
yihui 1:fc2f9d636751 194 // Compare the calculated to the one in flash.
yihui 1:fc2f9d636751 195 flash_header = *p_curr_addr;
yihui 1:fc2f9d636751 196 flash_crc = (uint16_t)flash_header;
yihui 1:fc2f9d636751 197
yihui 1:fc2f9d636751 198 if (flash_crc == in_data_crc)
yihui 1:fc2f9d636751 199 {
yihui 1:fc2f9d636751 200 // Data is the same as the data already stored in flash, return without modifying flash.
yihui 1:fc2f9d636751 201 return NRF_SUCCESS;
yihui 1:fc2f9d636751 202 }
yihui 1:fc2f9d636751 203
yihui 1:fc2f9d636751 204 // Erase flash page
yihui 1:fc2f9d636751 205 flash_page_erase(p_page);
yihui 1:fc2f9d636751 206
yihui 1:fc2f9d636751 207 // Reserve space for magic number (for detecting if flash content is valid).
yihui 1:fc2f9d636751 208 p_curr_addr++;
yihui 1:fc2f9d636751 209
yihui 1:fc2f9d636751 210 // Reserve space for saving word_count.
yihui 1:fc2f9d636751 211 p_curr_addr++;
yihui 1:fc2f9d636751 212
yihui 1:fc2f9d636751 213 // Write data
yihui 1:fc2f9d636751 214 for (i = 0; i < word_count; i++)
yihui 1:fc2f9d636751 215 {
yihui 1:fc2f9d636751 216 flash_word_unprotected_write(p_curr_addr, p_in_array[i]);
yihui 1:fc2f9d636751 217 p_curr_addr++;
yihui 1:fc2f9d636751 218 }
yihui 1:fc2f9d636751 219
yihui 1:fc2f9d636751 220 // Write number of elements.
yihui 1:fc2f9d636751 221 flash_word_write(p_page + 1, (uint32_t)(word_count));
yihui 1:fc2f9d636751 222
yihui 1:fc2f9d636751 223 // Write magic number and CRC to indicate that flash content is valid.
yihui 1:fc2f9d636751 224 flash_header = BLE_FLASH_MAGIC_NUMBER | (uint32_t)in_data_crc;
yihui 1:fc2f9d636751 225 flash_word_write(p_page, flash_header);
yihui 1:fc2f9d636751 226
yihui 1:fc2f9d636751 227 return NRF_SUCCESS;
yihui 1:fc2f9d636751 228 }
yihui 1:fc2f9d636751 229
yihui 1:fc2f9d636751 230
yihui 1:fc2f9d636751 231 uint32_t ble_flash_page_read(uint8_t page_num, uint32_t * p_out_array, uint8_t * p_word_count)
yihui 1:fc2f9d636751 232 {
yihui 1:fc2f9d636751 233 int byte_count;
yihui 1:fc2f9d636751 234 uint32_t * p_page;
yihui 1:fc2f9d636751 235 uint32_t * p_curr_addr;
yihui 1:fc2f9d636751 236 uint32_t flash_header;
yihui 1:fc2f9d636751 237 uint32_t calc_header;
yihui 1:fc2f9d636751 238 uint16_t calc_crc;
yihui 1:fc2f9d636751 239 uint32_t tmp;
yihui 1:fc2f9d636751 240
yihui 1:fc2f9d636751 241 p_page = (uint32_t *)(BLE_FLASH_PAGE_SIZE * page_num);
yihui 1:fc2f9d636751 242 p_curr_addr = p_page;
yihui 1:fc2f9d636751 243
yihui 1:fc2f9d636751 244 // Check if block is valid
yihui 1:fc2f9d636751 245 flash_header = *p_curr_addr;
yihui 1:fc2f9d636751 246 tmp = flash_header & 0xFFFF0000;
yihui 1:fc2f9d636751 247 if (tmp != BLE_FLASH_MAGIC_NUMBER)
yihui 1:fc2f9d636751 248 {
yihui 1:fc2f9d636751 249 *p_word_count = 0;
yihui 1:fc2f9d636751 250 return NRF_ERROR_NOT_FOUND;
yihui 1:fc2f9d636751 251 }
yihui 1:fc2f9d636751 252 p_curr_addr++;
yihui 1:fc2f9d636751 253
yihui 1:fc2f9d636751 254 // Read number of elements
yihui 1:fc2f9d636751 255 *p_word_count = (uint8_t)(*(p_curr_addr));
yihui 1:fc2f9d636751 256 p_curr_addr++;
yihui 1:fc2f9d636751 257
yihui 1:fc2f9d636751 258 // Read data
yihui 1:fc2f9d636751 259 byte_count = (*p_word_count) * sizeof(uint32_t);
yihui 1:fc2f9d636751 260 memcpy(p_out_array, p_curr_addr, byte_count);
yihui 1:fc2f9d636751 261
yihui 1:fc2f9d636751 262 // Check CRC
yihui 1:fc2f9d636751 263 calc_crc = ble_flash_crc16_compute((uint8_t *)p_out_array,
yihui 1:fc2f9d636751 264 (*p_word_count) * sizeof(uint32_t),
yihui 1:fc2f9d636751 265 NULL);
yihui 1:fc2f9d636751 266 calc_header = BLE_FLASH_MAGIC_NUMBER | (uint32_t)calc_crc;
yihui 1:fc2f9d636751 267
yihui 1:fc2f9d636751 268 if (calc_header != flash_header)
yihui 1:fc2f9d636751 269 {
yihui 1:fc2f9d636751 270 return NRF_ERROR_NOT_FOUND;
yihui 1:fc2f9d636751 271 }
yihui 1:fc2f9d636751 272
yihui 1:fc2f9d636751 273 return NRF_SUCCESS;
yihui 1:fc2f9d636751 274 }
yihui 1:fc2f9d636751 275
yihui 1:fc2f9d636751 276
yihui 1:fc2f9d636751 277 uint32_t ble_flash_page_addr(uint8_t page_num, uint32_t ** pp_page_addr)
yihui 1:fc2f9d636751 278 {
yihui 1:fc2f9d636751 279 *pp_page_addr = (uint32_t *)(BLE_FLASH_PAGE_SIZE * page_num);
yihui 1:fc2f9d636751 280 return NRF_SUCCESS;
yihui 1:fc2f9d636751 281 }
yihui 1:fc2f9d636751 282
yihui 1:fc2f9d636751 283
yihui 1:fc2f9d636751 284 void ble_flash_on_radio_active_evt(bool radio_active)
yihui 1:fc2f9d636751 285 {
yihui 1:fc2f9d636751 286 m_radio_active = radio_active;
yihui 1:fc2f9d636751 287 }