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/******************************************************************************
* The MIT License
*
* Copyright (c) 2012 LeafLabs, LLC.
*
* 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.
*****************************************************************************/
/**
* @file wirish/stm32f1/boards_setup.cpp
* @author Marti Bolivar <mbolivar@leaflabs.com>
* @brief STM32F1 chip setup.
*
* This file controls how init() behaves on the STM32F1. Be very
* careful when changing anything here. Many of these values depend
* upon each other.
*/
#include "boards_private.h"
#include <libmaple/gpio.h>
#include <libmaple/timer.h>
#include <boards.h>
#include <usb_serial.h>
// Allow boards to provide a PLL multiplier. This is useful for
// e.g. STM32F100 value line MCUs, which use slower multipliers.
// (We're leaving the default to RCC_PLLMUL_9 for now, since that
// works for F103 performance line MCUs, which is all that LeafLabs
// currently officially supports).
#ifndef BOARD_RCC_PLLMUL
#if !USE_HSI_CLOCK
#if F_CPU==128000000
#define BOARD_RCC_PLLMUL RCC_PLLMUL_16
#elif F_CPU==72000000
#define BOARD_RCC_PLLMUL RCC_PLLMUL_9
#elif F_CPU==48000000
#define BOARD_RCC_PLLMUL RCC_PLLMUL_6
#elif F_CPU==16000000
#define BOARD_RCC_PLLMUL RCC_PLLMUL_2
#endif
#else
#define BOARD_RCC_PLLMUL RCC_PLLMUL_16
#endif
#endif
namespace wirish {
namespace priv {
static stm32f1_rcc_pll_data pll_data = {BOARD_RCC_PLLMUL};
#if !USE_HSI_CLOCK
__weak rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data};
#else
__weak rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSI_DIV_2, &pll_data};
#endif
__weak adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_6;
__weak adc_smp_rate w_adc_smp = ADC_SMPR_55_5;
__weak void board_reset_pll(void) {
// TODO
}
__weak void board_setup_clock_prescalers(void) {
rcc_set_prescaler(RCC_PRESCALER_AHB, RCC_AHB_SYSCLK_DIV_1);
rcc_set_prescaler(RCC_PRESCALER_APB1, RCC_APB1_HCLK_DIV_2);
rcc_set_prescaler(RCC_PRESCALER_APB2, RCC_APB2_HCLK_DIV_1);
rcc_clk_disable(RCC_USB);
#if F_CPU == 72000000
rcc_set_prescaler(RCC_PRESCALER_USB, RCC_USB_SYSCLK_DIV_1_5);
#elif F_CPU == 48000000
rcc_set_prescaler(RCC_PRESCALER_USB, RCC_USB_SYSCLK_DIV_1);
#endif
}
__weak void board_setup_gpio(void) {
/**
* PA14 is a pull up pin. But, some V5 boards it start with LOW state! And just behave properly when the Z- PROBE is actived at least once.
* So, if the sensor isnt actived, the PA14 pin will be forever in LOW state, telling Marlin the probe IS ALWAYS ACTIVE, that isnt the case!
* Chitu original firmware seems to start with every pullup PIN with HIGH to workaround this.
* So we are doing the same here.
* This hack only works if applied *before* the GPIO Init, it's the reason I did it here.
*/
#ifdef CHITU_V5_Z_MIN_BUGFIX
GPIOA->regs->BSRR = (1U << PA14);
#endif
gpio_init_all();
}
__weak void board_setup_usb(void) {
#ifdef SERIAL_USB
#ifdef GENERIC_BOOTLOADER
// Reset the USB interface on generic boards - developed by Victor PV
gpio_set_mode(PIN_MAP[PA12].gpio_device, PIN_MAP[PA12].gpio_bit, GPIO_OUTPUT_PP);
gpio_write_bit(PIN_MAP[PA12].gpio_device, PIN_MAP[PA12].gpio_bit,0);
for (volatile unsigned int i = 0; i < 512; i++); // Only small delay seems to be needed, and USB pins will get configured in Serial.begin
gpio_set_mode(PIN_MAP[PA12].gpio_device, PIN_MAP[PA12].gpio_bit, GPIO_INPUT_FLOATING);
#endif
Serial.begin(); // Roger Clark. Changed SerialUSB to Serial for Arduino sketch compatibility
#endif
}
__weak void series_init(void) {
// Initialize AFIO here, too, so peripheral remaps and external
// interrupts work out of the box.
afio_init();
}
}
}
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