hw_config.c

00001 /******************** (C) COPYRIGHT 2011 STMicroelectronics ********************
00002  * File Name          : hw_config.c
00003  * Author             : MCD Application Team
00004  * Version            : V3.3.0
00005  * Date               : 21-March-2011
00006  * Description        : Hardware Configuration & Setup
00007  ********************************************************************************
00008  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
00009  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
00010  * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
00011  * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
00012  * CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
00013  * INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
00014  *******************************************************************************/
00015 
00016 #include "stm32f10x_it.h"
00017 
00018 #include "usb_lib.h"
00019 #include "usb_prop.h"
00020 #include "usb_desc.h"
00021 #include "hw_config.h"
00022 #include "platform_config.h"
00023 #include "usb_pwr.h"
00024 #include "stm32f10x_rcc.h"
00025 #include "misc.h"
00026 
00027 ErrorStatus HSEStartUpStatus;
00028 
00029 static void IntToUnicode(uint32_t value, uint8_t *pbuf, uint8_t len);
00030 
00031 /*******************************************************************************
00032  * Description    : Configures Main system clocks & power
00033  *******************************************************************************/
00034 void Set_System(void)
00035 {
00036 }
00037 
00038 /*******************************************************************************
00039  * Description    : Configures USB Clock input (48MHz)
00040  *******************************************************************************/
00041 void Set_USBClock(void)
00042 {
00043     /* Select USBCLK source */
00044     RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5);
00045 
00046     /* Enable the USB clock */
00047     RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
00048 }
00049 
00050 /*******************************************************************************
00051  * Description    : Power-off system clocks and power while entering suspend mode
00052  *******************************************************************************/
00053 void Enter_LowPowerMode(void)
00054 {
00055     /* Set the device state to suspend */
00056     bDeviceState = SUSPENDED;
00057 }
00058 
00059 /*******************************************************************************
00060  * Description    : Restores system clocks and power while exiting suspend mode
00061  *******************************************************************************/
00062 void Leave_LowPowerMode(void)
00063 {
00064     DEVICE_INFO *pInfo = &Device_Info;
00065 
00066     /* Set the device state to the correct state */
00067     if (pInfo->Current_Configuration != 0)
00068     {
00069         /* Device configured */
00070         bDeviceState = CONFIGURED;
00071     }
00072     else
00073     {
00074         bDeviceState = ATTACHED;
00075     }
00076 }
00077 
00078 /*******************************************************************************
00079  * Description    : Configures the USB interrupts
00080  *******************************************************************************/
00081 void USB_Interrupts_Config(void)
00082 {
00083     NVIC_InitTypeDef NVIC_InitStructure;
00084 
00085     NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
00086 
00087     NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
00088     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
00089     NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
00090     NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
00091     NVIC_Init(&NVIC_InitStructure);
00092 }
00093 
00094 /*******************************************************************************
00095  * Description    : Software Connection/Disconnection of USB Cable
00096  *******************************************************************************/
00097 void USB_Cable_Config(FunctionalState NewState)
00098 {
00099 }
00100 
00101 /*******************************************************************************
00102  * Description    : Create the serial number string descriptor.
00103  *******************************************************************************/
00104 void Get_SerialNum(void)
00105 {
00106     uint32_t Device_Serial0, Device_Serial1, Device_Serial2;
00107 
00108     Device_Serial0 = *(__IO uint32_t*) (0x1FFFF7E8);
00109     Device_Serial1 = *(__IO uint32_t*) (0x1FFFF7EC);
00110     Device_Serial2 = *(__IO uint32_t*) (0x1FFFF7F0);
00111 
00112     Device_Serial0 += Device_Serial2;
00113 
00114     if (Device_Serial0 != 0)
00115     {
00116         IntToUnicode(Device_Serial0, &Virtual_Com_Port_StringSerial[2], 8);
00117         IntToUnicode(Device_Serial1, &Virtual_Com_Port_StringSerial[18], 4);
00118     }
00119 }
00120 
00121 /*******************************************************************************
00122  * Description    : Convert Hex 32Bits value into char.
00123  *******************************************************************************/
00124 static void IntToUnicode(uint32_t value, uint8_t *pbuf, uint8_t len)
00125 {
00126     uint8_t idx = 0;
00127 
00128     for (idx = 0; idx < len; idx++)
00129     {
00130         if (((value >> 28)) < 0xA)
00131         {
00132             pbuf[2 * idx] = (value >> 28) + '0';
00133         }
00134         else
00135         {
00136             pbuf[2 * idx] = (value >> 28) + 'A' - 10;
00137         }
00138 
00139         value = value << 4;
00140 
00141         pbuf[2 * idx + 1] = 0;
00142     }
00143 }