/** ****************************************************************************** * @file EXTI/EXTI_Config/main.c * @author MCD Application Team * @version V3.5.0 * @date 08-April-2011 * @brief Main program body ****************************************************************************** * @attention * * 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. * * ?COPYRIGHT 2011 STMicroelectronics ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32f10x.h" #include "stm32_eval.h" //#include "delay.h" #includevolatile int flag; #define Set_B20() GPIO_SetBits(GPIOC, GPIO_Pin_12) #define Reset_B20() GPIO_ResetBits(GPIOC, GPIO_Pin_12) #define Read_B20() GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_12) unsigned char Error_Flag=0; unsigned char zf=0; void SysTick_Configuration(void) { /* Setup SysTick Timer for 10 msec interrupts */ if (SysTick_Config(48000)) //SysTick?? { /* Capture error */ while (1); } /* Configure the SysTick handler priority */ NVIC_SetPriority(SysTick_IRQn, 0x0); //SysTick????? } /** @addtogroup STM32F10x_StdPeriph_Examples * @{ */ /** @addtogroup EXTI_Config * @{ */ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; USART_ClockInitTypeDef USART_ClockInitStructure; void RCC_Configuration(void) { RCC_DeInit(); RCC_HSICmd(ENABLE); while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET); RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI); RCC_HSEConfig(RCC_HSE_OFF); RCC_LSEConfig(RCC_LSE_OFF); //******48MHZ*******// RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_6);//6*8=24MHz //************************************// RCC_PLLCmd(ENABLE); while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); //检查指定的RCC标志位（PLL）设置与否 RCC_ADCCLKConfig(RCC_PCLK2_Div4); //设置ADC时钟频率 RCC_PCLK2Config(RCC_HCLK_Div1); // APB2=HCLK/1 PCLK2=HCLK/1 RCC_PCLK1Config(RCC_HCLK_Div2); /// APB1=HCLK/2 PCLK1=HCLK/2 RCC_HCLKConfig(RCC_SYSCLK_Div1); // AHB使用系统时钟 HCLK=SYSCLK RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); // 配置系统时钟 while(RCC_GetSYSCLKSource() != 0x08) //检查是否将HES 6倍频后作为系统时钟 // SystemInit(); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE); GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE); GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOD, &GPIO_InitStructure); GPIO_ResetBits(GPIOD,GPIO_Pin_2); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE); GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;//LED GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOC, &GPIO_InitStructure); GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7); RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); //TIM2 } void USART_int(long BaudRate) { RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOA, &GPIO_InitStructure); /* PA10 USART1_Rx */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; GPIO_Init(GPIOA, &GPIO_InitStructure); /* USARTx configured as follow: - BaudRate = 115200 baud - Word Length = 8 Bits - One Stop Bit - No parity - Hardware flow control disabled (RTS and CTS signals) - Receive and transmit enabled */ USART_InitStructure.USART_BaudRate = BaudRate; USART_InitStructure.USART_WordLength = USART_WordLength_8b; USART_InitStructure.USART_StopBits = USART_StopBits_1; USART_InitStructure.USART_Parity = USART_Parity_No; USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; USART_ClockInitStructure.USART_Clock = USART_Clock_Disable; USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low; USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge; USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable; USART_ClockInit(USART1, &USART_ClockInitStructure); USART_Init(USART1, &USART_InitStructure); USART_Cmd(USART1, ENABLE); USART_ITConfig(USART1, USART_IT_RXNE, ENABLE); USART_Cmd(USART1, ENABLE); } void delay_18b20(u32 nus) //18b20延时 { u16 i; while(nus--) for(i=12;i>0;i--); } void delay_us(u32 n) //延时 { u8 j; while(n--) for(j=0;j<10;j++); } void delay_ms(u32 n) { while(n--) delay_us(1000); } void Init18B20(void) //18B20 { u8 aa=0; u8 count =0; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);//使能GPIOC时钟 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;//开漏输出 GPIO_Init(GPIOC, &GPIO_InitStructure); Set_B20() ; // GPIO_SetBits(GPIOC, GPIO_Pin_12) delay_18b20(1); Reset_B20(); // GPIO_ResetBits(GPIOC, GPIO_Pin_12) delay_18b20(480); Set_B20(); // delay_18b20(500); delay_18b20(480); count=0; aa=Read_B20(); //读取温度 while(!aa && count<100) //温度不宜超过99°C { aa=Read_B20(); count++; } if(count>=99) Error_Flag=1; else Error_Flag=0; } unsigned char Read18B20(void)//读数据 { unsigned char i=0; unsigned char date=0; u8 tempp; for(i=8;i>0;i--) { Reset_B20(); // GPIO_ResetBits(GPIOC, GPIO_Pin_12) date>>=1; //右移一位 delay_18b20(1); Set_B20(); //置1 delay_18b20(1); tempp=Read_B20(); //读取温度 if(tempp) date|=0x80;// 1000 0000将最高位填1 ，然后右移，每次最高位由0变1，使8位全部传递完毕 0xff = 1111 1111 delay_18b20(60); } return(date); } void Write18B20(unsigned char date)//写数据 { unsigned char i=0; for (i=8; i>0; i--) { Reset_B20(); //置0 delay_18b20(1); if(date & 0x01) { Set_B20(); } else { Reset_B20();} delay_18b20(60); date>>=1; //数据右移一位 Set_B20(); delay_18b20(1); } delay_18b20(15); } float Read_T()//读温度 { unsigned char TUp,TDown; unsigned char fTemp; u8 TT=0; float Temp = 0; Init18B20(); //18B20的初始化 Write18B20(0xcc);//写指令：跳过ROM,仅一个DS18B20 Write18B20(0x44);//启动温度转换 Init18B20(); Write18B20(0xcc);//写指令：跳过ROM,仅一个DS18B20 Write18B20(0xbe);//读暂存寄存器 TDown = Read18B20();//低字节 TUp = Read18B20();//高字节 if(TUp>0x7f) { TDown=~TDown; TUp=~TUp+1; TUp/=8; zf=1; } else zf=0; fTemp=TDown&0x0f; TUp<<=4; TDown>>=4; TT=TUp|TDown; Temp=TT+(float)fTemp/16; return(Temp); } int main(void) { /*!< 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 */ /* System Clocks Configuration */ char ID[8]; int i; RCC_Configuration(); USART_int(115200); SysTick_Configuration(); printf(" config done...\r\n"); delay_ms(1000); Init18B20(); Write18B20(0x33); delay_18b20(20); for(i=0;i<8;i++) { ID[i] = Read18B20(); } while(1) { if(flag == 300) { printf("At the moment of ID is:");// 每300ms输出ID for(i=0;i<8;i++) { printf("%x",ID[i]); } printf("\r\n") ; } if(flag == 500) { printf("The Temperature is:%f\r\n",Read_T());//每500ms输出温度 printf("===================================================\r\n"); } } } #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 /** * @} */ /** * @} */ #ifdef __GNUC__ /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf set to 'Yes') calls __io_putchar() */ #define PUTCHAR_PROTOTYPE int __io_putchar(int ch) #else #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f) #endif /* __GNUC__ */ /** * @brief Retargets the C library printf function to the USART. * @param None * @retval None */ PUTCHAR_PROTOTYPE { /* Place your implementation of fputc here */ /* e.g. write a character to the USART */ USART_SendData(EVAL_COM1, (uint8_t) ch); /* Loop until the end of transmission */ while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET) {} return ch; } #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 2011 STMicroelectronics *****END OF FILE****/
时钟滴答：
用ADC写满一页，全部输出：
#include#include "stm32_eval.h" #include #include "spi_flash.h" #define VREF 3.3 #define TxBufferSize1 (countof(TxBuffer1) - 1) #define RxBufferSize1 (countof(TxBuffer1) - 1) #define countof(a) (sizeof(a) / sizeof(*(a))) #define BufferSize (countof(Tx_Buffer)-1) typedef enum { FAILED = 0, PASSED = !FAILED} TestStatus; #define FLASH_WriteAddress 0x00000 #define FLASH_ReadAddress FLASH_WriteAddress #define FLASH_SectorToErase FLASH_WriteAddress #define sFLASH_ID 0xEF3015 //W25X16 //#define sFLASH_ID 0xEF4015 //W25Q16 #define buff_size 16; char rx_buff_count=0; uint8_t Tx_Buffer[4096] ; //???? uint8_t Rx_Buffer[BufferSize]; //???? __IO uint32_t DeviceID = 0; //??ID __IO uint32_t FlashID = 0; //??ID __IO TestStatus TransferStatus1 = FAILED; //???? /**************????*******************/ void delay_us(u32 n) { u8 j; while(n--) for(j=0;j<10;j++); } void delay_ms(u32 n) { while(n--) delay_us(1000); } void Delay(__IO uint32_t nCount); TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength); GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; USART_ClockInitTypeDef USART_ClockInitStructure; char *int_to_string(int number,char *strnum)//?????????? { int j=0,i=0,n=0; char temp; while(number>0) { *(strnum+j)=number%10+48; j++; number=number/10; n++; } for(i=0;i Libraries->Small printf set to 'Yes') calls __io_putchar() */ #define PUTCHAR_PROTOTYPE int __io_putchar(int ch) #else #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f) #endif /* __GNUC__ */ PUTCHAR_PROTOTYPE { /* Place your implementation of fputc here */ /* e.g. write a character to the USART */ USART_SendData(EVAL_COM1, (uint8_t) ch); /* Loop until the end of transmission */ while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET) {} return ch; } #ifdef USE_FULL_ASSERT void assert_failed(uint8_t* file, uint32_t line) { while (1) { } } #endif