cc28a31a5b
This lets users override them conveniently if our decisions don't suit. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
90 lines
3.1 KiB
C++
90 lines
3.1 KiB
C++
/******************************************************************************
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* The MIT License
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*
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* Copyright (c) 2012 LeafLabs, LLC.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*****************************************************************************/
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/**
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* @file wirish/stm32f1/boards_setup.cpp
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* @author Marti Bolivar <mbolivar@leaflabs.com>
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* @brief STM32F1 chip setup.
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*
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* This file controls how init() behaves on the STM32F1. Be very
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* careful when changing anything here. Many of these values depend
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* upon each other.
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*/
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#include "boards_private.h"
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#include <libmaple/gpio.h>
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#include <libmaple/timer.h>
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#include <wirish/boards.h>
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#include <wirish/usb_serial.h>
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// Allow boards to provide a PLL multiplier. This is useful for
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// e.g. STM32F100 value line MCUs, which use slower multipliers.
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// (We're leaving the default to RCC_PLLMUL_9 for now, since that
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// works for F103 performance line MCUs, which is all that LeafLabs
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// currently officially supports).
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#ifndef BOARD_RCC_PLLMUL
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#define BOARD_RCC_PLLMUL RCC_PLLMUL_9
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#endif
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namespace wirish {
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namespace priv {
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static stm32f1_rcc_pll_data pll_data = {BOARD_RCC_PLLMUL};
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__weak rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data};
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__weak adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_6;
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__weak adc_smp_rate w_adc_smp = ADC_SMPR_55_5;
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__weak void board_reset_pll(void) {
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// TODO
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}
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__weak void board_setup_clock_prescalers(void) {
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rcc_set_prescaler(RCC_PRESCALER_AHB, RCC_AHB_SYSCLK_DIV_1);
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rcc_set_prescaler(RCC_PRESCALER_APB1, RCC_APB1_HCLK_DIV_2);
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rcc_set_prescaler(RCC_PRESCALER_APB2, RCC_APB2_HCLK_DIV_1);
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}
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__weak void board_setup_gpio(void) {
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gpio_init_all();
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}
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__weak void board_setup_usb(void) {
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#if BOARD_HAVE_SERIALUSB
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SerialUSB.begin();
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#endif
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}
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__weak void series_init(void) {
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// Initialize AFIO here, too, so peripheral remaps and external
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// interrupts work out of the box.
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afio_init();
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}
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}
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}
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