73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2019 Matthew Lai <m@matthewlai.ca>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/cm3/assert.h>
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#include <libopencm3/stm32/dbgmcu.h>
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#include <libopencm3/stm32/desig.h>
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uint16_t desig_get_flash_size(void)
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{
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uint32_t device_id = DBGMCU_IDCODE & DBGMCU_IDCODE_DEV_ID_MASK;
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uint32_t* flash_size_base = 0;
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switch (device_id) {
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case 0x0449:
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flash_size_base = (uint32_t*) DESIG_FLASH_SIZE_BASE_449;
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break;
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case 0x0451:
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flash_size_base = (uint32_t*) DESIG_FLASH_SIZE_BASE_451;
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break;
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case 0x0452:
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flash_size_base = (uint32_t*) DESIG_FLASH_SIZE_BASE_452;
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break;
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}
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if (!flash_size_base) {
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/* We don't know the address for this device. Hang here to help debugging. */
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cm3_assert_not_reached();
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}
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return *flash_size_base;
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}
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void desig_get_unique_id(uint32_t *result)
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{
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uint32_t device_id = DBGMCU_IDCODE & DBGMCU_IDCODE_DEV_ID_MASK;
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uint32_t* uid_base = 0;
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switch (device_id) {
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case 0x0449:
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uid_base = (uint32_t*) DESIG_UNIQUE_ID_BASE_449;
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break;
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case 0x0451:
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uid_base = (uint32_t*) DESIG_UNIQUE_ID_BASE_451;
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break;
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case 0x0452:
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uid_base = (uint32_t*) DESIG_UNIQUE_ID_BASE_452;
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break;
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}
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if (!uid_base) {
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/* We don't know the address for this device. Hang here to help debugging. */
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cm3_assert_not_reached();
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}
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result[0] = uid_base[2];
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result[1] = uid_base[1];
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result[2] = uid_base[0];
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}
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