/**
******************************************************************************
* @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 "stm32_it.h"
#include "usb_lib.h"
#include "usb_prop.h"
#include "usb_desc.h"
#include "hw_config.h"
#include "usb_pwr.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
ErrorStatus HSEStartUpStatus;
EXTI_InitTypeDef EXTI_InitStructure;
extern __IO uint32_t packet_sent;
extern __IO uint8_t Send_Buffer[VIRTUAL_COM_PORT_DATA_SIZE] ;
extern __IO uint32_t packet_receive;
extern __IO uint8_t Receive_length;
uint8_t Receive_Buffer[64];
uint32_t Send_length;
static void IntToUnicode (uint32_t value , uint8_t *pbuf , uint8_t len);
/* Extern variables ----------------------------------------------------------*/
extern LINE_CODING linecoding;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : Set_System
* Description : Configures Main system clocks & power
* Input : None.
* Return : None.
*******************************************************************************/
void Set_System(void)
{
#if !defined(STM32L1XX_MD) && !defined(STM32L1XX_HD) && !defined(STM32L1XX_MD_PLUS)
GPIO_InitTypeDef GPIO_InitStructure;
#endif /* STM32L1XX_MD && 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_stm32f10x_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f10x.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);
/* Configure USB pull-up pin */
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_MD && STM32L1XX_XD */
#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 /* STM32F37X && STM32F30X)*/
/* 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);
}
/*******************************************************************************
* Function Name : Set_USBClock
* Description : Configures USB Clock input (48MHz)
* Input : 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.
* 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.
* 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();
}
/*******************************************************************************
* Function Name : USB_Interrupts_Config
* Description : Configures the USB interrupts
* Input : 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)
/* Enable the USB interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USB_LP_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
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 = 1;
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 = 2;
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 = 1;
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 = 2;
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 = 1;
NVIC_Init(&NVIC_InitStructure);
#endif
}
/*******************************************************************************
* Function Name : USB_Cable_Config
* Description : Software Connection/Disconnection of USB Cable
* Input : None.
* Return : Status
*******************************************************************************/
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 : 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, &Virtual_Com_Port_StringSerial[2] , 8);
IntToUnicode (Device_Serial1, &Virtual_Com_Port_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 : Send DATA .
* Description : send the data received from the STM32 to the PC through USB
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
uint32_t CDC_Send_DATA (uint8_t *ptrBuffer, uint8_t Send_length)
{
/*if max buffer is Not reached*/
if(Send_length < VIRTUAL_COM_PORT_DATA_SIZE)
{
/*Sent flag*/
packet_sent = 0;
/* send packet to PMA*/
UserToPMABufferCopy((unsigned char*)ptrBuffer, ENDP1_TXADDR, Send_length);
SetEPTxCount(ENDP1, Send_length);
SetEPTxValid(ENDP1);
}
else
{
return 0;
}
return 1;
}
/*******************************************************************************
* Function Name : Receive DATA .
* Description : receive the data from the PC to STM32 and send it through USB
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
uint32_t CDC_Receive_DATA(void)
{
/*Receive flag*/
packet_receive = 0;
SetEPRxValid(ENDP3);
return 1 ;
}
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/