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init.c
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#include <stm32f10x_flash.h>
#include <stm32f10x_rcc.h>
#include <stm32f10x_gpio.h>
#include <stm32f10x_tim.h>
#include <stm32f10x_usart.h>
#include <stm32f10x_adc.h>
#include <stm32f10x.h>
#include <stm32f10x_dma.h>
#include <stm32f10x_spi.h>
#include <misc.h>
#include "init.h"
SPI_InitTypeDef SPI_InitStructure;
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_Conf;
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
#define ADC1_DR_Address ((uint32_t)0x4001244C)
void NVIC_Conf(void)
{
#ifdef VECT_TAB_RAM
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else // VECT_TAB_FLASH
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
}
void RCC_Conf(void)
{
ErrorStatus HSEStartUpStatus;
RCC_DeInit();
RCC_HSEConfig(RCC_HSE_ON);
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
FLASH_SetLatency(FLASH_Latency_2);
RCC_HCLKConfig(RCC_SYSCLK_Div4);
RCC_PCLK2Config(RCC_HCLK_Div4);
RCC_PCLK1Config(RCC_HCLK_Div2);
RCC_SYSCLKConfig(RCC_SYSCLKSource_HSE);
while(RCC_GetSYSCLKSource() != 0x04);
}
}
void init_port(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
GPIO_Conf.GPIO_Pin = GPIO_Pin_12;
GPIO_Conf.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Conf.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOA, &GPIO_Conf);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_Conf.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 ;//| GPIO_Pin_10;
GPIO_Conf.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Conf.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOB, &GPIO_Conf);
TIM_TimeBaseInitTypeDef TIM2_TimeBaseInitStruct;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM2,DISABLE);
TIM2_TimeBaseInitStruct.TIM_Prescaler = 1000;
TIM2_TimeBaseInitStruct.TIM_CounterMode = TIM_CounterMode_Up;
TIM2_TimeBaseInitStruct.TIM_Period = 6;
TIM2_TimeBaseInitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
TIM2_TimeBaseInitStruct.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM2,&TIM2_TimeBaseInitStruct);
TIM_ClearITPendingBit(TIM2,TIM_IT_Update);
TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);
NVIC_InitTypeDef NVIC_InitStructure; //create NVIC structure
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
TIM_Cmd(TIM2,ENABLE);
GPIO_Conf.GPIO_Pin = GPIO_Pin_13 |GPIO_Pin_15;
GPIO_Conf.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Conf.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOB, &GPIO_Conf);
GPIO_Conf.GPIO_Pin = GPIO_Pin_14;
GPIO_Conf.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_Conf);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
GPIO_Conf.GPIO_Pin = GPIO_Pin_13;
GPIO_Conf.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Conf.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOC,&GPIO_Conf);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_16b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_16;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI2, &SPI_InitStructure);
SPI_SSOutputCmd(SPI2, ENABLE);
SPI_Cmd(SPI2, ENABLE);
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_Init(SPI2, &SPI_InitStructure);
GPIO_Conf.GPIO_Pin = GPIO_Pin_9;
GPIO_Conf.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Conf.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOA, &GPIO_Conf);
GPIO_Conf.GPIO_Pin = GPIO_Pin_10;
GPIO_Conf.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_Conf);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);// | RCC_APB2Periph_AFIO, ENABLE);
USART_InitStructure.USART_BaudRate = 9600; //0x9c4;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
NVIC_EnableIRQ(USART1_IRQn);
GPIO_Conf.GPIO_Pin = GPIO_Pin_10;
GPIO_Conf.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Conf.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOB, &GPIO_Conf);
GPIO_Conf.GPIO_Pin = GPIO_Pin_11;
GPIO_Conf.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_Conf);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);// | RCC_APB2Periph_AFIO, ENABLE);
USART_InitStructure.USART_BaudRate = 19200; //0x9c4;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
USART_Init(USART3, &USART_InitStructure);
USART_Cmd(USART3, ENABLE);
RCC_AHBPeriphClockCmd ( RCC_AHBPeriph_DMA1 , ENABLE ) ;
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_BufferSize = 2;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t) &ADCVal;
ADC_DMACmd(ADC1, ENABLE);
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_Init(DMA1_Channel1, &DMA_InitStructure);
DMA_Cmd(DMA1_Channel1, ENABLE);
GPIO_Conf.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Conf.GPIO_Pin = GPIO_Pin_6 ; // that's ADC1 (PA5 on STM32)
GPIO_Init(GPIOA, &GPIO_Conf);
GPIO_Conf.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Conf.GPIO_Pin = GPIO_Pin_5 ; // that's ADC1 (PA3 on STM32)
GPIO_Init(GPIOA, &GPIO_Conf);
RCC_ADCCLKConfig (RCC_PCLK2_Div2);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE; // we work in continuous sampling mode
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 2;
ADC_Init ( ADC1, &ADC_InitStructure); //set config of ADC1
ADC_RegularChannelConfig(ADC1,ADC_Channel_5, 1,ADC_SampleTime_28Cycles5); // define regular conversion config
ADC_RegularChannelConfig(ADC1,ADC_Channel_6, 2,ADC_SampleTime_28Cycles5); // define regular conversion config
ADC_DMACmd(ADC1, ENABLE);
ADC_Cmd (ADC1,ENABLE); //enable ADC
ADC_ResetCalibration(ADC1); // Reset previous calibration
while(ADC_GetResetCalibrationStatus(ADC1));
ADC_StartCalibration(ADC1); // Start new calibration (ADC must be off at that time)
while(ADC_GetCalibrationStatus(ADC1));
ADC_SoftwareStartConvCmd(ADC1, ENABLE); // start conversion (will be endless as we are in continuous mode)
}