lora-car/libopencm3/lib/stm32/f7/desig.c

73 lines
2.0 KiB
C
Raw Normal View History

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