BTLE demo for MAXWSNENV.
Dependencies: BLE_API BMP180 Si7020 mbed MaximBLE
btle_addr.c@0:f71931ae3db1, 2015-07-10 (annotated)
- Committer:
- kgills
- Date:
- Fri Jul 10 21:28:56 2015 +0000
- Revision:
- 0:f71931ae3db1
Adding MAXWSNENV_demo.
Who changed what in which revision?
User | Revision | Line number | New 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 | } |