基于STM32虚拟示波器的制作 -

/*
* Copyright (c) 2010 仪星电子
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* 著作权所有(C) 2010 仪星电子
*
* 本程序为自由软件；您可依据自由软件基金会所发表的GNU通用公共授权条款规定，
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* 任一日后发行的版本。
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* 目的适用性所为的默示性担保。详情请参照GNU通用公共授权。
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*/
/******************** (C) COPYRIGHT 2009 STMicroelectronics ********************
* File Name : main.c
* Author : MCD Application Team
* Version : V3.1.0
* Date : 10/30/2009
* Description : Virtual Com Port Demo main file
********************************************************************************
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32f10x_gpio.h"
#include "usb_lib.h"
#include "usb_desc.h"
#include "usb_pwr.h"
#include "qdmx_usb.h"
#include "qdmx_adc.h"
#define SEND 32
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Extern variables ----------------------------------------------------------*/
extern __IO uint32_t count_in;
extern uint8_t Controla_a;
extern uint8_t Controla_b;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
void Set_System(void);
void Callback(uint8_t *p);
void Delay(__IO uint32_t nCount);
void GPIO_configure(void);
/*******************************************************************************
* Function Name : main.
* Description : Main routine.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
int main(void)
{
vu8 s;
/*设置系统时钟*/
Set_System();
/*初始化USB模块*/
Set_USBClock();
USB_Interrupts_Config();
USB_Init();
/*初始化AD模块*/
m_adc_clk_config();
m_adc_gpio_config();
m_adc_Interrupts_Config();
m_adc_init();
/*初始化GPIO引脚作为放大控制引脚*/
GPIO_configure();
count_in=0;
/*默认初始值为放大1倍*/
GPIO_ResetBits(GPIOA,GPIO_Pin_0);
GPIO_ResetBits(GPIOA,GPIO_Pin_1);
GPIO_ResetBits(GPIOA,GPIO_Pin_2);
GPIO_ResetBits(GPIOB,GPIO_Pin_12);
GPIO_ResetBits(GPIOB,GPIO_Pin_13);
GPIO_ResetBits(GPIOB,GPIO_Pin_14);
while (1)
{
}
}
void GPIO_configure(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA , ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB , ENABLE);
RCC_AHBPeriphClockCmd(RCC_APB2Periph_GPIOA , ENABLE);
RCC_AHBPeriphClockCmd(RCC_APB2Periph_GPIOB , ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void Delay(__IO uint32_t nCount)
{
for(; nCount != 0; nCount--);
}
void Callback(uint8_t *p)
{
if (GetENDPOINT(ENDP1) & EP_DTOG_RX)
{
FreeUserBuffer(ENDP1, EP_DBUF_IN);
UserToPMABufferCopy((uint8_t*) p, ENDP1_TX1ADDR, SEND);
SetEPDblBuf1Count(ENDP1,EP_DBUF_IN,SEND);
}
else
{
FreeUserBuffer(ENDP1, EP_DBUF_IN);
UserToPMABufferCopy((uint8_t*) p, ENDP1_TX0ADDR, SEND);
SetEPDblBuf0Count(ENDP1,EP_DBUF_IN,SEND);
}
}
#ifdef USE_FULL_ASSERT
/*******************************************************************************
* Function Name : assert_failed
* Description : Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* Input : - file: pointer to the source file name
* - line: assert_param error line source number
* Output : None
* Return : None
*******************************************************************************/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{}
}
#endif
/*******************************************************************************
* Function Name : Set_System
* Description : Configures Main system clocks & power
* Input : None.
* Return : None.
*******************************************************************************/
void Set_System(void)
{
ErrorStatus HSEStartUpStatus;
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration -----------------------------*/
/* RCC system reset(for debug purpose) */
RCC_DeInit();
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if (HSEStartUpStatus == SUCCESS)
{
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* Flash 2 wait state */
FLASH_SetLatency(FLASH_Latency_2);
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK/2 */
RCC_PCLK1Config(RCC_HCLK_Div2);
#ifdef STM32F10X_CL
/* Configure PLLs *********************************************************/
/* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */
RCC_PREDIV2Config(RCC_PREDIV2_Div5);
RCC_PLL2Config(RCC_PLL2Mul_8);
/* Enable PLL2 */
RCC_PLL2Cmd(ENABLE);
/* Wait till PLL2 is ready */
while (RCC_GetFlagStatus(RCC_FLAG_PLL2RDY) == RESET)
{}
/* PLL configuration: PLLCLK = (PLL2 / 5) * 9 = 72 MHz */
RCC_PREDIV1Config(RCC_PREDIV1_Source_PLL2, RCC_PREDIV1_Div5);
RCC_PLLConfig(RCC_PLLSource_PREDIV1, RCC_PLLMul_9);
#else
/* PLLCLK = 8MHz * 9 = 72 MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
#endif
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock configuration.
User can add here some code to deal with this error */
/* Go to infinite loop */
while (1)
{
}
}
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