/*******************************************************************************
STM32学习日志(19)----调试支持(Dbg)
编译环境: EWARM V5.30
硬件环境: 南京万利 EK-STM32F
主芯片 : STM32F103VBT6
STM32 FW: V3.0.0
作者 : szlihongtao
时间 : 2010-07-28
说明 : 1. 读取STM32芯片的版本
2. 读取STM32芯片的设备标志
3. FW库函数参数正确性检查,USE_FULL_ASSERT=1
*******************************************************************************/
/**
******************************************************************************
* @file Project/Template/main.c
* @author MCD Application Team
* @version V3.0.0
* @date 04/06/2009
* @brief Main program body
******************************************************************************
* @copy
*
* 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.
*
* <h2><center>© COPYRIGHT 2009 STMicroelectronics</center></h2>
*/
/* Includes ------------------------------------------------------------------*/
#include "lib_dbg.h"
#include "stm32f10x.h"
#include "stm32_m.h"
#include "lcd.h"
//******************************************************************************
bit f_tb; // 基本定时标志
static INT16U tmr_1sec,cnt_sec;
INT32U REVID;
INT32U DEVID;
//******************************************************************************
static void delayms(INT16U cnt)
{
INT16U i;
while(cnt--)
for (i=0; i<7333; i++);
}
//******************************************************************************
// 延时50ms
//******************************************************************************
static void delay(void)
{
INT32U i;
static INT32U jjj=5240*50;
for (i=0; i<jjj; i++);
}
//******************************************************************************
// 时钟设置初始化
//******************************************************************************
static void RCC_Configuration(void)
{
ErrorStatus HSEStartUpStatus;
/*
RCC_AdjustHSICalibrationValue 调整内部高速晶振(HSI)校准值
RCC_ITConfig 使能或者失能指定的RCC中断
RCC_ClearFlag 清除RCC的复位标志位
RCC_GetITStatus 检查指定的RCC中断发生与否
RCC_ClearITPendingBit 清除RCC的中断待处理位
*/
/* RCC system reset(for debug purpose) */
// 时钟系统复位
RCC_DeInit();
// 使能外部的8M晶振
// 设置外部高速晶振(HSE)
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
// 使能或者失能内部高速晶振(HSI)
RCC_HSICmd(DISABLE);
// 等待HSE起振
// 该函数将等待直到HSE就绪,或者在超时的情况下退出
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
/* HCLK = SYSCLK */
// 设置AHB时钟(HCLK)
RCC_HCLKConfig(RCC_SYSCLK_Div1); // 72 MHz
/* PCLK1 = HCLK/2 */
// 设置低速AHB时钟(PCLK1)
RCC_PCLK1Config(RCC_HCLK_Div2); // 36 MHz
/* PCLK2 = HCLK */
// 设置高速AHB时钟(PCLK2)
RCC_PCLK2Config(RCC_HCLK_Div1); // 72 MHz
/* ADCCLK = PCLK2/8 */
// 设置ADC时钟(ADCCLK)
RCC_ADCCLKConfig(RCC_PCLK2_Div8);
// 设置USB时钟(USBCLK)
// USB时钟 = PLL时钟除以1.5
RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5);
// 设置外部低速晶振(LSE)
RCC_LSEConfig(RCC_LSE_OFF);
// 使能或者失能内部低速晶振(LSI)
// LSE晶振OFF
RCC_LSICmd(DISABLE);
// 设置RTC时钟(RTCCLK)
// 选择HSE时钟频率除以128作为RTC时钟
RCC_RTCCLKConfig(RCC_RTCCLKSource_HSE_Div128);
// 使能或者失能RTC时钟
// RTC时钟的新状态
RCC_RTCCLKCmd(DISABLE);
/* Flash 2 wait state */
FLASH_SetLatency(FLASH_Latency_2);
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* PLLCLK = 8MHz * 9 = 72 MHz */
// 设置PLL时钟源及倍频系数
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
/* Enable PLL */
// 使能或者失能PLL
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
// 检查指定的RCC标志位设置与否
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}
/* Select PLL as system clock source */
// 设置系统时钟(SYSCLK)
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
// 返回用作系统时钟的时钟源
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}
// 使能或者失能AHB外设时钟
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1
|RCC_AHBPeriph_DMA2
|RCC_AHBPeriph_SRAM
|RCC_AHBPeriph_FLITF
|RCC_AHBPeriph_CRC
|RCC_AHBPeriph_FSMC
|RCC_AHBPeriph_SDIO,DISABLE);
// 使能或者失能APB1外设时钟
RCC_APB1PeriphClockCmd(RCC_APB1Periph_ALL,DISABLE);
// 强制或者释放高速APB(APB2)外设复位
RCC_APB2PeriphResetCmd(RCC_APB2Periph_ALL,ENABLE);
// 退出复位状态
RCC_APB2PeriphResetCmd(RCC_APB2Periph_ALL,DISABLE);
// 强制或者释放低速APB(APB1)外设复位
RCC_APB1PeriphResetCmd(RCC_APB1Periph_ALL,ENABLE);
// 强制或者释放后备域复位
RCC_BackupResetCmd(ENABLE);
// 使能或者失能时钟安全系统
RCC_ClockSecuritySystemCmd(DISABLE);
}
//******************************************************************************
// NVIC设置
//******************************************************************************
static void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* Configure one bit for preemption priority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
/* Enable the EXTI4 Interrupt on PD.4 */
NVIC_InitStructure.NVIC_IRQChannel = EXTI4_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
//******************************************************************************
// SysTick设置初始化
//******************************************************************************
static void SysTick_Config1(void)
{
#define SystemFreq 72000000.0 // 单位为Hz
#define TB_SysTick 2000.0 // 单位为uS
INT32U ticks;
ticks=(INT32U)((TB_SysTick/1000000.0)*SystemFreq);
ticks=ticks;
SysTick_Config(ticks);
}
//******************************************************************************
// GPIO设置
//******************************************************************************
static void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
// 使能或者失能APB2外设时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_GPIOD|RCC_APB2Periph_GPIOE, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3|GPIO_Pin_4; // key
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11;
GPIO_Init(GPIOC, &GPIO_InitStructure); // lcd_comm
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All; // lcd_seg
GPIO_Init(GPIOE, &GPIO_InitStructure);
}
//******************************************************************************
// LED5亮
//******************************************************************************
void Led_RW_ON(void)
{
GPIO_SetBits(GPIOC,GPIO_Pin_4);
}
//******************************************************************************
// LED5灭
//******************************************************************************
void Led_RW_OFF(void)
{
GPIO_ResetBits(GPIOC,GPIO_Pin_4);
}
//******************************************************************************
// pos=0-3
//******************************************************************************
static void myWrite_char(u8 pos,char car,u8 f_dot)
{
write_char(&car,f_dot,pos);
}
//******************************************************************************
static void disp_sec(INT16U cnt_sec)
{
INT8U min,sec;
char ch;
cnt_sec%=3600;
min=cnt_sec/60;
sec=cnt_sec%60;
ch=0x30+min/10;
myWrite_char(0,ch,0);
ch=0x30+min%10;
myWrite_char(1,ch,1); // 加小数点,隔开分钟与秒的显示
ch=0x30+sec/10;
myWrite_char(2,ch,0);
ch=0x30+sec%10;
myWrite_char(3,ch,0);
}
//******************************************************************************
// 主程序
//******************************************************************************
int main(void)
{
RCC_Configuration();
GPIO_Configuration();
NVIC_Configuration();
SysTick_Config1();
Led_RW_ON();
delay();
Led_RW_OFF();
//------------------------------------------------------------------------------
write_string("STM3"); /*STM32 LCD demo*/
delayms(1000);
write_string("DBG ");
delayms(1000);
//------------------------------------------------------------------------------
// 返回STM32芯片的版本
// 0x0000 = 版本 A
// 0x2000 = 版本 B
// 0x2001 = 版本 Z
//------------------------------------------------------------------------------
REVID=DBGMCU_GetREVID(); // 8193=0x00002001,版本Z
//------------------------------------------------------------------------------
// 返回STM32芯片的设备标志
// 对于STM32F10x,设备ID为0x410
//------------------------------------------------------------------------------
DEVID=DBGMCU_GetDEVID(); // 1040=0x00000410
debug();
for(;;)
{
if (f_tb) // 每隔2ms设置为1
{
f_tb=0;
if (++tmr_1sec>=(1000/2))
{
tmr_1sec=0;
disp_sec(++cnt_sec);
GPIOC->ODR ^= GPIO_Pin_6; // led3 toogle
}
}
}
}
//******************************************************************************
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval : 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
/**
* @}
*/
//******************************************************************************
/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/
//******************************************************************************
/*
LED2---------PC7
LED3---------PC6
LED4---------PC5
LED5---------PC4
KEY2---------PD3
KEY3---------PD4
*/
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