/****************************************************************************** * The MIT License * * Copyright (c) 2010 Perry Hung. * * 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. *****************************************************************************/ /** * @brief generic maple board bring up: * * By default, we bring up all maple boards running on the stm32 to 72mhz, * clocked off the PLL, driven by the 8MHz external crystal. * * AHB and APB2 are clocked at 72MHz * APB1 is clocked at 36MHz */ #include "wirish.h" #include "systick.h" #include "gpio.h" #include "nvic.h" #include "usb.h" #include "rcc.h" #include "fsmc.h" #include "dac.h" #include "flash.h" void init(void) { /* make sure the flash is ready before spinning the high speed clock up */ flash_enable_prefetch(); flash_set_latency(FLASH_WAIT_STATE_2); #if NR_FSMC > 0 fsmc_native_sram_init(); #endif #if NR_DAC_PINS > 0 dac_init(); #endif /* initialize clocks */ rcc_clk_init(RCC_CLKSRC_PLL, RCC_PLLSRC_HSE, RCC_PLLMUL_9); 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); nvic_init(); systick_init(MAPLE_RELOAD_VAL); gpio_init(); adc_init(); timer_init(TIMER1, 1); timer_init(TIMER2, 1); timer_init(TIMER3, 1); timer_init(TIMER4, 1); #if NR_TIMERS >= 8 timer_init(TIMER5, 1); timer_init(TIMER8, 1); #endif setupUSB(); /* include the board-specific init macro */ BOARD_INIT; }