Maxim Integrated / Mbed 2 deprecated MAXWSNENV_demo Featured

BTLE demo for MAXWSNENV.

Dependencies:   BLE_API BMP180 Si7020 mbed MaximBLE

btle_addr.c@2:6f76d6160601, 2016-08-18 (annotated)

Committer:
enginerd
Date:
Thu Aug 18 21:09:13 2016 +0000
Revision:
2:6f76d6160601
Parent:
0:f71931ae3db1 
Updated library versions.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kgills 0:f71931ae3db1 1 /*******************************************************************************
kgills 0:f71931ae3db1 2 * Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved.
kgills 0:f71931ae3db1 3 *
kgills 0:f71931ae3db1 4 * Permission is hereby granted, free of charge, to any person obtaining a
kgills 0:f71931ae3db1 5 * copy of this software and associated documentation files (the "Software"),
kgills 0:f71931ae3db1 6 * to deal in the Software without restriction, including without limitation
kgills 0:f71931ae3db1 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
kgills 0:f71931ae3db1 8 * and/or sell copies of the Software, and to permit persons to whom the
kgills 0:f71931ae3db1 9 * Software is furnished to do so, subject to the following conditions:
kgills 0:f71931ae3db1 10 *
kgills 0:f71931ae3db1 11 * The above copyright notice and this permission notice shall be included
kgills 0:f71931ae3db1 12 * in all copies or substantial portions of the Software.
kgills 0:f71931ae3db1 13 *
kgills 0:f71931ae3db1 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
kgills 0:f71931ae3db1 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
kgills 0:f71931ae3db1 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
kgills 0:f71931ae3db1 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
kgills 0:f71931ae3db1 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
kgills 0:f71931ae3db1 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
kgills 0:f71931ae3db1 20 * OTHER DEALINGS IN THE SOFTWARE.
kgills 0:f71931ae3db1 21 *
kgills 0:f71931ae3db1 22 * Except as contained in this notice, the name of Maxim Integrated
kgills 0:f71931ae3db1 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
kgills 0:f71931ae3db1 24 * Products, Inc. Branding Policy.
kgills 0:f71931ae3db1 25 *
kgills 0:f71931ae3db1 26 * The mere transfer of this software does not imply any licenses
kgills 0:f71931ae3db1 27 * of trade secrets, proprietary technology, copyrights, patents,
kgills 0:f71931ae3db1 28 * trademarks, maskwork rights, or any other form of intellectual
kgills 0:f71931ae3db1 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
kgills 0:f71931ae3db1 30 * ownership rights.
kgills 0:f71931ae3db1 31 *******************************************************************************
kgills 0:f71931ae3db1 32 */
kgills 0:f71931ae3db1 33
kgills 0:f71931ae3db1 34 #include <stdint.h>
kgills 0:f71931ae3db1 35 #include <string.h>
kgills 0:f71931ae3db1 36 #include "cmsis.h"
kgills 0:f71931ae3db1 37 #include "clkman_regs.h"
kgills 0:f71931ae3db1 38 #include "tpu_regs.h"
kgills 0:f71931ae3db1 39 #include "flc_regs.h"
kgills 0:f71931ae3db1 40
kgills 0:f71931ae3db1 41 #define BTLE_ADDR_ADDRESS (MXC_FLASH_MEM_BASE + MXC_FLASH_MEM_SIZE - 8)
kgills 0:f71931ae3db1 42 #define FLC_CTRL_UNLOCK_VALUE 0x20000000UL
kgills 0:f71931ae3db1 43
kgills 0:f71931ae3db1 44 static void getRandAddress(uint32_t address[2])
kgills 0:f71931ae3db1 45 {
kgills 0:f71931ae3db1 46 uint32_t clk_config_save = MXC_CLKMAN->clk_config;
kgills 0:f71931ae3db1 47 uint32_t clk_ctrl_10_prng_save = MXC_CLKMAN->clk_ctrl_10_prng;
kgills 0:f71931ae3db1 48 uint32_t crypt_clk_ctrl_2_prng_save = MXC_CLKMAN->crypt_clk_ctrl_2_prng;
kgills 0:f71931ae3db1 49 uint32_t clk_ctrl_save = MXC_CLKMAN->clk_ctrl;
kgills 0:f71931ae3db1 50 uint16_t *ptr = (uint16_t*)address;
kgills 0:f71931ae3db1 51
kgills 0:f71931ae3db1 52 // Enable the crypto RO if necessary
kgills 0:f71931ae3db1 53 if (!(MXC_CLKMAN->clk_config & MXC_F_CLKMAN_CLK_CONFIG_CRYPTO_ENABLE)) {
kgills 0:f71931ae3db1 54 uint32_t temp = MXC_CLKMAN->clk_config;
kgills 0:f71931ae3db1 55 temp &= ~MXC_F_CLKMAN_CLK_CONFIG_CRYPTO_STABILITY_COUNT;
kgills 0:f71931ae3db1 56 temp |= (MXC_F_CLKMAN_CLK_CONFIG_CRYPTO_RESET_N |
kgills 0:f71931ae3db1 57 MXC_F_CLKMAN_CLK_CONFIG_CRYPTO_ENABLE |
kgills 0:f71931ae3db1 58 (MXC_E_CLKMAN_STABILITY_COUNT_2_8_CLKS << MXC_F_CLKMAN_CLK_CONFIG_CRYPTO_STABILITY_COUNT_POS));
kgills 0:f71931ae3db1 59 MXC_CLKMAN->clk_config = temp;
kgills 0:f71931ae3db1 60 }
kgills 0:f71931ae3db1 61
kgills 0:f71931ae3db1 62 // Un-gate crypto RO if necessary
kgills 0:f71931ae3db1 63 if (!(MXC_CLKMAN->clk_ctrl & MXC_F_CLKMAN_CLK_CTRL_CRYPTO_GATE_N)) {
kgills 0:f71931ae3db1 64 MXC_CLKMAN->clk_ctrl |= MXC_F_CLKMAN_CLK_CTRL_CRYPTO_GATE_N;
kgills 0:f71931ae3db1 65 }
kgills 0:f71931ae3db1 66
kgills 0:f71931ae3db1 67 // Enable clock if necessary
kgills 0:f71931ae3db1 68 if (MXC_CLKMAN->clk_ctrl_10_prng == MXC_E_CLKMAN_CLK_SCALE_DISABLED) {
kgills 0:f71931ae3db1 69 MXC_CLKMAN->clk_ctrl_10_prng = MXC_E_CLKMAN_CLK_SCALE_ENABLED;
kgills 0:f71931ae3db1 70 }
kgills 0:f71931ae3db1 71
kgills 0:f71931ae3db1 72 // Enable clock if necessary
kgills 0:f71931ae3db1 73 if (MXC_CLKMAN->crypt_clk_ctrl_2_prng == MXC_E_CLKMAN_CLK_SCALE_DISABLED) {
kgills 0:f71931ae3db1 74 MXC_CLKMAN->crypt_clk_ctrl_2_prng = MXC_E_CLKMAN_CLK_SCALE_ENABLED;
kgills 0:f71931ae3db1 75 }
kgills 0:f71931ae3db1 76
kgills 0:f71931ae3db1 77 ptr[0] = MXC_TPU->prng_rnd_num;
kgills 0:f71931ae3db1 78 ptr[1] = MXC_TPU->prng_rnd_num;
kgills 0:f71931ae3db1 79 ptr[2] = MXC_TPU->prng_rnd_num;
kgills 0:f71931ae3db1 80 ptr[3] = MXC_TPU->prng_rnd_num;
kgills 0:f71931ae3db1 81
kgills 0:f71931ae3db1 82 // Restore clock settings
kgills 0:f71931ae3db1 83 MXC_CLKMAN->crypt_clk_ctrl_2_prng = crypt_clk_ctrl_2_prng_save;
kgills 0:f71931ae3db1 84 MXC_CLKMAN->clk_ctrl_10_prng = clk_ctrl_10_prng_save;
kgills 0:f71931ae3db1 85 MXC_CLKMAN->clk_ctrl = clk_ctrl_save;
kgills 0:f71931ae3db1 86 MXC_CLKMAN->clk_config = clk_config_save;
kgills 0:f71931ae3db1 87 }
kgills 0:f71931ae3db1 88
kgills 0:f71931ae3db1 89 void getBtleAddress(uint8_t *bdAddr)
kgills 0:f71931ae3db1 90 {
kgills 0:f71931ae3db1 91 uint32_t *ptr;
kgills 0:f71931ae3db1 92 uint32_t flash_value[2];
kgills 0:f71931ae3db1 93
kgills 0:f71931ae3db1 94 ptr = (uint32_t*)BTLE_ADDR_ADDRESS;
kgills 0:f71931ae3db1 95
kgills 0:f71931ae3db1 96 // Check if there is already an address written to flash
kgills 0:f71931ae3db1 97 if ((ptr[0] == 0xFFFFFFFF) && (ptr[1] == 0xFFFFFFFF)) {
kgills 0:f71931ae3db1 98
kgills 0:f71931ae3db1 99 // Get a random numbers for the address
kgills 0:f71931ae3db1 100 getRandAddress(flash_value);
kgills 0:f71931ae3db1 101
kgills 0:f71931ae3db1 102 // Set bits to indicate random static address
kgills 0:f71931ae3db1 103 flash_value[1] |= 0xFFFFC000;
kgills 0:f71931ae3db1 104
kgills 0:f71931ae3db1 105 // Write the number to flash
kgills 0:f71931ae3db1 106 MXC_FLC->ctrl = (MXC_FLC->ctrl & ~MXC_F_FLC_CTRL_FLSH_UNLOCK) | FLC_CTRL_UNLOCK_VALUE;
kgills 0:f71931ae3db1 107
kgills 0:f71931ae3db1 108 MXC_FLC->faddr = BTLE_ADDR_ADDRESS;
kgills 0:f71931ae3db1 109 MXC_FLC->fdata = flash_value[0];
kgills 0:f71931ae3db1 110 MXC_FLC->ctrl |= MXC_F_FLC_CTRL_WRITE;
kgills 0:f71931ae3db1 111 while (MXC_FLC->ctrl & MXC_F_FLC_CTRL_PENDING);
kgills 0:f71931ae3db1 112
kgills 0:f71931ae3db1 113 MXC_FLC->faddr = BTLE_ADDR_ADDRESS + 4;
kgills 0:f71931ae3db1 114 MXC_FLC->fdata = flash_value[1];
kgills 0:f71931ae3db1 115 MXC_FLC->ctrl |= MXC_F_FLC_CTRL_WRITE;
kgills 0:f71931ae3db1 116 while (MXC_FLC->ctrl & MXC_F_FLC_CTRL_PENDING);
kgills 0:f71931ae3db1 117
kgills 0:f71931ae3db1 118 MXC_FLC->ctrl &= ~MXC_F_FLC_CTRL_FLSH_UNLOCK;
kgills 0:f71931ae3db1 119 }
kgills 0:f71931ae3db1 120
kgills 0:f71931ae3db1 121 memcpy(bdAddr, (uint32_t*)BTLE_ADDR_ADDRESS, 6);
kgills 0:f71931ae3db1 122 }