/**
*********************************************************************************
* @file Peripheral.c
* @author FMD AE
* @brief Peripheral program body
* @version V1.0.0
* @data 2021-09-27
*********************************************************************************
* @attention
* COPYRIGHT (C) 2021 Fremont Micro Devices (SZ) Corporation All rights reserved.
* This software is provided by the copyright holders and contributors,and the
*software is believed to be accurate and reliable. However, Fremont Micro Devices
*(SZ) Corporation assumes no responsibility for the consequences of use of such
*software or for any infringement of patents of other rights of third parties,
*which may result from its use. No license is granted by implication or otherwise
*under any patent rights of Fremont Micro Devices (SZ) Corporation.
* ******************************************************************************
*/
/* Includes ----------------------------------------------------------------------*/
#include "Peripheral.h"
/* Private Constant --------------------------------------------------------------*/
/* Public Constant ---------------------------------------------------------------*/
const uint16_t TICK_RATE_HZ = 100;
/* Private typedef ---------------------------------------------------------------*/
/* Private variables -------------------------------------------------------------*/
uint16_t Channel1Pulse;
uint16_t TimerPeriod;
/* Public variables --------------------------------------------------------------*/
__IO uint32_t CaptureNumber, PeriodValue;
__IO uint16_t ADC1ConvertedValue = 0, ADC1ConvertedVoltage = 0;
__IO uint32_t Timecount;
__IO uint8_t usart_rx_buff[RX_SIZE];
/* Private function prototypes ---------------------------------------------------*/
static void DMA_USART_RX_Config(void);
/* Public function ------ --------------------------------------------------------*/
/**********************************************************************************
* @brief Usart_Init program
* @param None
* @note
* @retval None
*********************************************************************************
*/
void Usart_Init(void)
{
USART_InitTypeDef USART_InitStruct;
GPIO_InitTypeDef GPIO_InitStruct;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE);
/*GPIO INIT*/
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA,&GPIO_InitStruct);
GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_1);
GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_1);
USART_InitStruct.USART_BaudRate = 115200;
USART_InitStruct.USART_WordLength = USART_WordLength_8b;
USART_InitStruct.USART_StopBits = USART_StopBits_1;
USART_InitStruct.USART_Parity = USART_Parity_No;
USART_InitStruct.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_Init(USART1,&USART_InitStruct);
USART_Cmd(USART1,ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_ITConfig(USART1,USART_IT_IDLE,ENABLE);
USART_ClearFlag(USART1,USART_FLAG_IDLE);
DMA_USART_RX_Config();
USART_DMAReceptionErrorConfig(USART1,USART_DMAOnError_Enable);
USART_DMACmd(USART1,USART_DMAReq_Rx,ENABLE);
DMA_Cmd(DMA1_Channel3,ENABLE);
// printf("USART1 Init was complete!\r\n");
}
/**********************************************************************************
* @brief ADC_Config program
* @param None
* @note
* @retval None
*********************************************************************************
*/
void ADC_Config(void)
{
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 ;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOC, &GPIO_InitStructure);
ADC_DeInit(ADC1);
ADC_StructInit(&ADC_InitStructure);
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_ScanDirection = ADC_ScanDirection_Upward;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_VrefselConfig(ADC_Vrefsel_2_5V);
ADC_ChannelConfig(ADC1, ADC_Channel_10 , ADC_SampleTime_239_5Cycles);
/* ADC Calibration */
ADC_GetCalibrationFactor(ADC1);
/* Enable the ADC peripheral */
ADC_Cmd(ADC1, ENABLE);
/* Wait the ADRDY flag */
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_ADRDY));
/* ADC1 regular Software Start Conv */
ADC_StartOfConversion(ADC1);
}
/**********************************************************************************
* @brief ADC_Measure program
* @param None
* @note
* @retval None
*********************************************************************************
*/
void ADC_Measure(void)
{
uint32_t ADC_Max,ADC_Min,ADC_SUM = 0;
uint32_t ADC_Buff[10];
for(uint8_t i = 0;i<10;i++)
{
/* Test EOC flag */
while(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);
/* Get ADC1 converted data */
ADC1ConvertedValue =ADC_GetConversionValue(ADC1);
/* Compute the voltage */
ADC_Buff[i] = (ADC1ConvertedValue *2500)/0xFFF;
}
ADC_Max = ADC_Min = ADC_Buff[0];
for(uint8_t i = 0;i<10;i++)
{
ADC_SUM += ADC_Buff[i];
if(ADC_Buff[i]>ADC_Max)ADC_Max = ADC_Buff[i];
else if(ADC_Buff[i]<ADC_Min)ADC_Min = ADC_Buff[i];
}
ADC1ConvertedVoltage = (ADC_SUM - ADC_Max - ADC_Min)/8;
printf("ADC_DATA = 0x%02x\r\n",ADC1ConvertedVoltage);
}
/**********************************************************************************
* @brief TIM_PWM_Init program
* @param None
* @note
* @retval None
*********************************************************************************
*/
void TIM_PWM_Init(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
GPIO_Init(GPIOB, &GPIO_InitStructure); /* GPIOA Configuration: Channel 1 */
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_2);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_Init(GPIOB, &GPIO_InitStructure); /* GPIOB Configuration: Channel 1N*/
GPIO_PinAFConfig(GPIOB, GPIO_PinSource8, GPIO_AF_2);
/* Compute the value to be set in ARR regiter to generate signal frequency at 20 Khz */
TimerPeriod = (SystemCoreClock / 20000 ) - 1;
/* Compute CCR1 value to generate a duty cycle at 50% for channel 1 and 1N */
Channel1Pulse = (uint16_t) (((uint32_t) 5 * (TimerPeriod - 1)) / 10);
/* TIM1 clock enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM16 , ENABLE);
/* Time Base configuration */
TIM_TimeBaseStructure.TIM_Prescaler = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_Period = TimerPeriod;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM16, &TIM_TimeBaseStructure);
/* Channel 1, 2,3 and 4 Configuration in PWM mode */
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OCInitStructure.TIM_Pulse = Channel1Pulse;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low;
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset;
TIM_OC1Init(TIM16, &TIM_OCInitStructure);
/* TIM1 counter enable */
TIM_Cmd(TIM16, ENABLE);
/* Enable the CC2 Interrupt Request */
/* Enable the TIM1 global Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = TIM16_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
TIM_ITConfig(TIM16, TIM_IT_Update, ENABLE);
TIM_ClearITPendingBit(TIM16, TIM_IT_Update);
/* TIM1 Main Output Enable */
TIM_CtrlPWMOutputs(TIM16, ENABLE);
}
/**********************************************************************************
* @brief Iwdg_Init program
* @param None
* @note
* @retval None
*********************************************************************************
*/
void Iwdg_Init(void)
{
RCC_LSICmd(ENABLE);
while((RCC ->CSR & RCC_CSR_LSIRDY) == 0); //wait LSI ready
for(uint32_t i=1000;i>0;i--)
{
__ASM("NOP");
}
IWDG_Enable();
IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
IWDG_SetPrescaler(IWDG_Prescaler_16);
while(IWDG_GetFlagStatus(IWDG_FLAG_PVU) == SET);
IWDG_SetReload(500);
while(IWDG_GetFlagStatus(IWDG_FLAG_RVU) == SET);
IWDG_ReloadCounter();
}
/**********************************************************************************
* @brief LED_Flash program
* @param None
* @note
* @retval None
*********************************************************************************
*/
void LED_Flash(void)
{
LED_Toggle(LED_PORT,LED3_PIN);
}
/**********************************************************************************
* @brief Key_Pro program
* @param Key_Value
* @note
* @retval None
*********************************************************************************
*/
void Key_Pro(uint8_t Key_Value)
{
if(Key_Value)
{
switch(Key_Value)
{
case KEY1_Data:
LED_Toggle(LED_PORT,LED4_PIN);
if(Channel1Pulse<TimerPeriod-100)Channel1Pulse += 100;
TIM_SetCompare1(TIM16,Channel1Pulse);
printf("KEY1 PRESS, PWMPeriod = %02x, PWMPulse = %02x\r\n",TimerPeriod,Channel1Pulse);
break;
case KEY2_Data:
LED_Toggle(LED_PORT,LED4_PIN);
if(Channel1Pulse>100)Channel1Pulse -= 100;
TIM_SetCompare1(TIM16,Channel1Pulse);
printf("KEY2 PRESS, PWMPeriod = %02x, PWMPulse = %02x\r\n",TimerPeriod,Channel1Pulse);
break;
}
}
}
/**********************************************************************************
* @brief fputc program
* @param int ch, FILE *f
* @note
* @retval None
*********************************************************************************
*/
int fputc(int ch, FILE *f)
{
while(USART_GetFlagStatus(USART1,USART_FLAG_TC)==RESET)
{
}
USART_SendData(USART1,(uint8_t) ch);
return ch;
}
/* Private function ------ -------------------------------------------------------*/
/**********************************************************************************
* @brief DMA_USART_RX_Config program.
* @param None
* @note
* @retval None
*********************************************************************************
*/
static void DMA_USART_RX_Config(void)
{
DMA_InitTypeDef DMA_InitStruct;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1,ENABLE);
DMA_InitStruct.DMA_BufferSize = RX_SIZE;
DMA_InitStruct.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStruct.DMA_M2M = DMA_M2M_Disable;
DMA_InitStruct.DMA_MemoryBaseAddr = (uint32_t)&usart_rx_buff[0];
DMA_InitStruct.DMA_MemoryDataSize = 8;
DMA_InitStruct.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStruct.DMA_Mode = DMA_Mode_Normal;
DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&USART1->RDR;
DMA_InitStruct.DMA_PeripheralDataSize = 8;
DMA_InitStruct.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStruct.DMA_Priority = DMA_Priority_Low;
DMA_Init(DMA1_Channel3,&DMA_InitStruct);
}
/************************* (C) COPYRIGHT FMD *****END OF FILE*********************/