circuitpython/ports/stm32/boards/stm32wbxx_hal_conf_base.h
Damien George cc2a35b7b2 stm32/rtc: Validate the RTC prescaler on boot and change if incorrect.
Devices with RTC backup-batteries have been shown (very rarely) to have
incorrect RTC prescaler values.  Such incorrect values mean the RTC counts
fast or slow, and will be wrong forever if the power/backup-battery is
always present.

This commit detects such a state at start up (hard reset) and corrects it
by reconfiguring the RTC prescaler values.

Signed-off-by: Damien George <damien@micropython.org>
2020-11-13 11:23:52 +11:00

81 lines
2.8 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_STM32WBXX_HAL_CONF_BASE_H
#define MICROPY_INCLUDED_STM32WBXX_HAL_CONF_BASE_H
// Include various HAL modules for convenience
#include "stm32wbxx_hal_dma.h"
#include "stm32wbxx_hal_adc.h"
#include "stm32wbxx_hal_cortex.h"
#include "stm32wbxx_hal_flash.h"
#include "stm32wbxx_hal_gpio.h"
#include "stm32wbxx_hal_i2c.h"
#include "stm32wbxx_hal_pcd.h"
#include "stm32wbxx_hal_pwr.h"
#include "stm32wbxx_hal_rcc.h"
#include "stm32wbxx_hal_rtc.h"
#include "stm32wbxx_hal_spi.h"
#include "stm32wbxx_hal_tim.h"
#include "stm32wbxx_hal_uart.h"
#include "stm32wbxx_hal_usart.h"
#include "stm32wbxx_ll_adc.h"
#include "stm32wbxx_ll_rtc.h"
// Enable various HAL modules
#define HAL_MODULE_ENABLED
#define HAL_ADC_MODULE_ENABLED
#define HAL_CORTEX_MODULE_ENABLED
#define HAL_DMA_MODULE_ENABLED
#define HAL_FLASH_MODULE_ENABLED
#define HAL_GPIO_MODULE_ENABLED
#define HAL_I2C_MODULE_ENABLED
#define HAL_PCD_MODULE_ENABLED
#define HAL_PWR_MODULE_ENABLED
#define HAL_RCC_MODULE_ENABLED
#define HAL_RTC_MODULE_ENABLED
#define HAL_SPI_MODULE_ENABLED
#define HAL_TIM_MODULE_ENABLED
#define HAL_UART_MODULE_ENABLED
#define HAL_USART_MODULE_ENABLED
// Oscillator values in Hz
#define MSI_VALUE (4000000)
// SysTick has the highest priority
#define TICK_INT_PRIORITY (0x00)
// Miscellaneous HAL settings
#define DATA_CACHE_ENABLE 1
#define INSTRUCTION_CACHE_ENABLE 1
#define PREFETCH_ENABLE 0
#define USE_SPI_CRC 0
#define USE_RTOS 0
// HAL parameter assertions are disabled
#define assert_param(expr) ((void)0)
#endif // MICROPY_INCLUDED_STM32WBXX_HAL_CONF_BASE_H