/**
******************************************************************************
* @file hw_config.c
* @author MCD Application Team
* @version V4.0.0
* @date 21-January-2013
* @brief Hardware Configuration & Setup
******************************************************************************
* @attention
*
*
© COPYRIGHT 2013 STMicroelectronics
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "hw_config.h"
#include "usb_lib.h"
#include "usb_desc.h"
#include "usb_pwr.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
ErrorStatus HSEStartUpStatus;
uint32_t ADC_ConvertedValueX = 0;
uint32_t ADC_ConvertedValueX_1 = 0;
__IO uint16_t ADC1ConvertedValue = 0, ADC1ConvertedVoltage = 0, calibration_value = 0;
/* Extern variables ----------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void IntToUnicode (uint32_t value , uint8_t *pbuf , uint8_t len);
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : Set_System
* Description : Configures Main system clocks & power.
* Input : None.
* Return : None.
*******************************************************************************/
void Set_System(void)
{
#if defined (STM32F37X) || defined (STM32F30X)
GPIO_InitTypeDef GPIO_InitStructure;
#endif /*STM32L1XX_XD */
#if defined(USB_USE_EXTERNAL_PULLUP)
GPIO_InitTypeDef GPIO_InitStructure;
#endif /* USB_USE_EXTERNAL_PULLUP */
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32xxx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32xxx.c file
*/
#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS) || defined (STM32F37X) || defined (STM32F30X)
/* Enable the SYSCFG module clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
#endif /* STM32L1XX_XD */
#if !defined(STM32L1XX_MD) && !defined(STM32L1XX_HD) && !defined(STM32L1XX_MD_PLUS) && !defined(STM32F37X) && !defined(STM32F30X)
/* Enable USB_DISCONNECT GPIO clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_DISCONNECT, ENABLE);
/* ADCCLK = PCLK2/8 */
RCC_ADCCLKConfig(RCC_PCLK2_Div8);
#endif /* STM32L1XX_XD */
/* Configure the used GPIOs*/
GPIO_Configuration();
#if defined(USB_USE_EXTERNAL_PULLUP)
/* Enable the USB disconnect GPIO clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIO_DISCONNECT, ENABLE);
/* USB_DISCONNECT used as USB pull-up */
GPIO_InitStructure.GPIO_Pin = USB_DISCONNECT_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(USB_DISCONNECT, &GPIO_InitStructure);
#endif /* USB_USE_EXTERNAL_PULLUP */
#if defined(STM32F37X) || defined(STM32F30X)
/* Enable the USB disconnect GPIO clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIO_DISCONNECT, ENABLE);
/*Set PA11,12 as IN - USB_DM,DP*/
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/*SET PA11,12 for USB: USB_DM,DP*/
GPIO_PinAFConfig(GPIOA, GPIO_PinSource11, GPIO_AF_14);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource12, GPIO_AF_14);
/* USB_DISCONNECT used as USB pull-up */
GPIO_InitStructure.GPIO_Pin = USB_DISCONNECT_PIN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(USB_DISCONNECT, &GPIO_InitStructure);
#endif
#if defined(STM32L1XX_MD)
/* Configure the LEFT button in EXTI mode */
STM_EVAL_PBInit(Button_LEFT, Mode_EXTI);
/* Configure the RIGHT button in EXTI mode */
STM_EVAL_PBInit(Button_RIGHT, Mode_EXTI);
#else
/* Configure the KEY button in EXTI mode */
STM_EVAL_PBInit(Button_KEY, Mode_EXTI);
#if !defined(STM32L1XX_HD)&& !defined(STM32L1XX_MD_PLUS) && !defined(STM32F37X) && !defined(STM32F30X)
/* Configure the Tamper button in EXTI mode */
STM_EVAL_PBInit(Button_TAMPER, Mode_EXTI);
#endif /* STM32L1XX_XD */
#endif
/* Additional EXTI configuration (configure both edges) */
EXTI_Configuration();
/* Configure the LEDs */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
#if defined (STM32F30X)
ADC30x_Configuration();
#else
/* Configure the ADC*/
ADC_Configuration();
#endif
}
/*******************************************************************************
* Function Name : Set_USBClock
* Description : Configures USB Clock input (48MHz).
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void Set_USBClock(void)
{
#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS)
/* Enable USB clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
#else
/* Select USBCLK source */
RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5);
/* Enable the USB clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
#endif /* STM32L1XX_MD */
}
/*******************************************************************************
* Function Name : Enter_LowPowerMode.
* Description : Power-off system clocks and power while entering suspend mode.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void Enter_LowPowerMode(void)
{
/* Set the device state to suspend */
bDeviceState = SUSPENDED;
}
/*******************************************************************************
* Function Name : Leave_LowPowerMode.
* Description : Restores system clocks and power while exiting suspend mode.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void Leave_LowPowerMode(void)
{
DEVICE_INFO *pInfo = &Device_Info;
/* Set the device state to the correct state */
if (pInfo->Current_Configuration != 0)
{
/* Device configured */
bDeviceState = CONFIGURED;
}
else
{
bDeviceState = ATTACHED;
}
/*Enable SystemCoreClock*/
SystemInit();
#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS)
/* Enable The HSI (16Mhz) */
RCC_HSICmd(ENABLE);
#endif
#if defined(STM32F30X)
ADC30x_Configuration();
#endif
}
/*******************************************************************************
* Function Name : USB_Interrupts_Config.
* Description : Configures the USB interrupts.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void USB_Interrupts_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* 2 bit for pre-emption priority, 2 bits for subpriority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS)
NVIC_InitStructure.NVIC_IRQChannel = USB_LP_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Enable the USB Wake-up interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USB_FS_WKUP_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
#elif defined(STM32F37X)
/* Enable the USB interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USB_LP_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Enable the USB Wake-up interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USBWakeUp_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
#else
/* Enable the USB interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Enable the USB Wake-up interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USBWakeUp_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
#endif /* STM32L1XX_XD */
/* Enable the EXTI9_5 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_Init(&NVIC_InitStructure);
/* Enable the EXTI15_10 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_Init(&NVIC_InitStructure);
/* Enable the DMA1 Channel1 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
NVIC_Init(&NVIC_InitStructure);
}
/*******************************************************************************
* Function Name : USB_Cable_Config.
* Description : Software Connection/Disconnection of USB Cable.
* Input : NewState: new state.
* Output : None.
* Return : None
*******************************************************************************/
void USB_Cable_Config (FunctionalState NewState)
{
#if defined(STM32L1XX_MD) || defined (STM32L1XX_HD)|| (STM32L1XX_MD_PLUS)
if (NewState != DISABLE)
{
STM32L15_USB_CONNECT;
}
else
{
STM32L15_USB_DISCONNECT;
}
#else /* USE_STM3210B_EVAL or USE_STM3210E_EVAL */
if (NewState != DISABLE)
{
GPIO_ResetBits(USB_DISCONNECT, USB_DISCONNECT_PIN);
}
else
{
GPIO_SetBits(USB_DISCONNECT, USB_DISCONNECT_PIN);
}
#endif /* STM32L1XX_MD */
}
/*******************************************************************************
* Function Name : GPIO_Configuration
* Description : Configures the different GPIO ports.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS) || defined (STM32F37X) || defined (STM32F30X)
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIO_DISCONNECT |
RCC_AHBPeriph_GPIO_IOAIN , ENABLE);
#else
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_DISCONNECT |
RCC_APB2Periph_GPIO_IOAIN , ENABLE);
/* USB_DISCONNECT used as USB pull-up */
GPIO_InitStructure.GPIO_Pin = USB_DISCONNECT_PIN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
GPIO_Init(USB_DISCONNECT, &GPIO_InitStructure);
#endif /* STM32L1XX_XD */
/* Configure Potentiometer IO as analog input */
GPIO_InitStructure.GPIO_Pin = GPIO_IOAIN_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIO_IOAIN, &GPIO_InitStructure);
}
/*******************************************************************************
* Function Name : EXTI_Configuration.
* Description : Configure the EXTI lines for Key and Tamper push buttons.
* Input : None.
* Output : None.
* Return value : The direction value.
*******************************************************************************/
void EXTI_Configuration(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
#if defined (USE_STM32L152_EVAL)
/* Configure RIGHT EXTI line to generate an interrupt on rising & falling edges */
EXTI_InitStructure.EXTI_Line = RIGHT_BUTTON_EXTI_LINE;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Clear the RIGHT EXTI line pending bit */
EXTI_ClearITPendingBit(RIGHT_BUTTON_EXTI_LINE);
/* Configure LEFT EXTI Line to generate an interrupt rising & falling edges */
EXTI_InitStructure.EXTI_Line = LEFT_BUTTON_EXTI_LINE;
EXTI_Init(&EXTI_InitStructure);
/* Clear the LEFT EXTI line pending bit */
EXTI_ClearITPendingBit(LEFT_BUTTON_EXTI_LINE);
#else
/* Configure Key EXTI line to generate an interrupt on rising & falling edges */
EXTI_InitStructure.EXTI_Line = KEY_BUTTON_EXTI_LINE;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Clear the Key EXTI line pending bit */
EXTI_ClearITPendingBit(KEY_BUTTON_EXTI_LINE);
/* Configure Tamper EXTI Line to generate an interrupt rising & falling edges */
#if !defined (USE_STM32L152D_EVAL) && !defined (STM32F30X)
EXTI_InitStructure.EXTI_Line = TAMPER_BUTTON_EXTI_LINE;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Clear the Tamper EXTI line pending bit */
EXTI_ClearITPendingBit(TAMPER_BUTTON_EXTI_LINE);
#endif
#endif /* USE_STM32L152_EVAL */
/* Configure the EXTI line 18 connected internally to the USB IP */
EXTI_ClearITPendingBit(EXTI_Line18);
EXTI_InitStructure.EXTI_Line = EXTI_Line18;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}
#if !defined (STM32F30X)
/*******************************************************************************
* Function Name : ADC_Configuration.
* Description : Configure the ADC and DMA.
* Input : None.
* Output : None.
* Return value : The direction value.
*******************************************************************************/
void ADC_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
/* Enable DMA1 clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
/* Enable ADC1 clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
/* DMA1 channel1 configuration ---------------------------------------------*/
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&ADC_ConvertedValueX;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = 1;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel1, &DMA_InitStructure);
/* Enable DMA1 channel1 */
DMA_Cmd(DMA1_Channel1, ENABLE);
/* Enable the DMA1 Channel1 Transfer complete interrupt */
DMA_ITConfig(DMA1_Channel1, DMA_IT_TC, ENABLE);
#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS)
/* Enable the HSI for the ADC operations */
RCC_HSICmd(ENABLE);
/* ADC1 configuration ------------------------------------------------------*/
ADC_StructInit(&ADC_InitStructure);
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 1;
ADC_Init(ADC1, &ADC_InitStructure);
#if defined (USE_STM32L152D_EVAL)
/* ADC1 regular channel31 configuration */
ADC_RegularChannelConfig(ADC1, ADC_Channel_31, 1, ADC_SampleTime_384Cycles);
#else
/* ADC1 regular channel18 configuration */
ADC_RegularChannelConfig(ADC1, ADC_Channel_18, 1, ADC_SampleTime_384Cycles);
#endif
#if !defined (USE_STM32373C_EVAL)
/* Enable the request after last transfer for DMA Circular mode */
ADC_DMARequestAfterLastTransferCmd(ADC1, ENABLE);
#endif
/* Enable ADC1 DMA */
ADC_DMACmd(ADC1, ENABLE);
/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);
#else
/* ADC1 configuration ------------------------------------------------------*/
#if !defined (USE_STM32373C_EVAL)
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
#endif
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 1;
ADC_Init(ADC1, &ADC_InitStructure);
/* ADC1 regular channel configuration */
ADC_RegularChannelConfig(ADC1, ADC_AIN_CHANNEL, 1, ADC_SampleTime_55Cycles5);
/* Enable ADC1 DMA */
ADC_DMACmd(ADC1, ENABLE);
/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);
/* Enable ADC1 reset calibration register */
ADC_ResetCalibration(ADC1);
/* Check the end of ADC1 reset calibration register */
while(ADC_GetResetCalibrationStatus(ADC1));
/* Start ADC1 calibration */
ADC_StartCalibration(ADC1);
/* Check the end of ADC1 calibration */
while(ADC_GetCalibrationStatus(ADC1));
#endif /* STM32L1XX_XD */
}
#endif /* STM32F30x */
/*******************************************************************************
* Function Name : Get_SerialNum.
* Description : Create the serial number string descriptor.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void Get_SerialNum(void)
{
uint32_t Device_Serial0, Device_Serial1, Device_Serial2;
Device_Serial0 = *(uint32_t*)ID1;
Device_Serial1 = *(uint32_t*)ID2;
Device_Serial2 = *(uint32_t*)ID3;
Device_Serial0 += Device_Serial2;
if (Device_Serial0 != 0)
{
IntToUnicode (Device_Serial0, &CustomHID_StringSerial[2] , 8);
IntToUnicode (Device_Serial1, &CustomHID_StringSerial[18], 4);
}
}
/*******************************************************************************
* Function Name : HexToChar.
* Description : Convert Hex 32Bits value into char.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
static void IntToUnicode (uint32_t value , uint8_t *pbuf , uint8_t len)
{
uint8_t idx = 0;
for( idx = 0 ; idx < len ; idx ++)
{
if( ((value >> 28)) < 0xA )
{
pbuf[ 2* idx] = (value >> 28) + '0';
}
else
{
pbuf[2* idx] = (value >> 28) + 'A' - 10;
}
value = value << 4;
pbuf[ 2* idx + 1] = 0;
}
}
/*******************************************************************************
* Function Name : ADC30x_Configuration
* Description : Configure the ADC and DMA.
* Input : None.
* Output : None.
* Return value : The direction value.
*******************************************************************************/
#if defined (STM32F30X)
void ADC30x_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
DMA_InitTypeDef DMA_InitStructure;
/* Enable DMA1 clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
/* DMA1 channel1 configuration ---------------------------------------------*/
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&ADC_ConvertedValueX;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = 1;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_Medium;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel1, &DMA_InitStructure);
/* Enable DMA1 channel1 */
DMA_Cmd(DMA1_Channel1, ENABLE);
/* Enable the DMA1 Channel1 Transfer complete interrupt */
DMA_ITConfig(DMA1_Channel1, DMA_IT_TC, ENABLE);
/* Configure the ADC clock */
RCC_ADCCLKConfig(RCC_ADC12PLLCLK_Div2);
/* ADC1 Periph clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ADC12, ENABLE);
ADC_DeInit(ADC1);
ADC_StructInit(&ADC_InitStructure);
/* Calibration procedure */
ADC_VoltageRegulatorCmd(ADC1, ENABLE);
ADC_SelectCalibrationMode(ADC1, ADC_CalibrationMode_Single);
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1) != RESET );
calibration_value = ADC_GetCalibrationValue(ADC1);
/* Configure the ADC1 in continuous mode */
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Clock = ADC_Clock_AsynClkMode;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_DMAMode = ADC_DMAMode_OneShot;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = 0;
ADC_CommonInit(ADC1, &ADC_CommonInitStructure);
/* ADC1 DMA Enable */
ADC_DMACmd(ADC1, ENABLE);
ADC_DMAConfig(ADC1, ADC_DMAMode_Circular);
ADC_InitStructure.ADC_ContinuousConvMode = ADC_ContinuousConvMode_Enable;
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ExternalTrigConvEvent = ADC_ExternalTrigConvEvent_0;
ADC_InitStructure.ADC_ExternalTrigEventEdge = ADC_ExternalTrigEventEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_OverrunMode = ADC_OverrunMode_Disable;
ADC_InitStructure.ADC_AutoInjMode = ADC_AutoInjec_Disable;
ADC_InitStructure.ADC_NbrOfRegChannel = 1;
ADC_Init(ADC1, &ADC_InitStructure);
/* ADC1 regular channel7 configuration */
ADC_RegularChannelConfig(ADC1, ADC_Channel_7, 1, ADC_SampleTime_7Cycles5);
/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);
/* wait for ADRDY */
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_RDY));
/* Start ADC1 Software Conversion */
ADC_StartConversion(ADC1);
/* Test EOC flag */
while(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);
/* Get ADC1 converted data */
ADC_ConvertedValueX =ADC_GetConversionValue(ADC1);
}
#endif
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