From afbb4cc73c44b6321cae39dbe46b97155805097d Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Sun, 13 Dec 2015 21:03:11 +0100 Subject: wip --- .../RTC/Calendar/main.c | 410 +++++++++++++++++++++ 1 file changed, 410 insertions(+) create mode 100644 tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/RTC/Calendar/main.c (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/RTC/Calendar/main.c') diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/RTC/Calendar/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/RTC/Calendar/main.c new file mode 100644 index 0000000..e2e18ec --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/RTC/Calendar/main.c @@ -0,0 +1,410 @@ +/** + ****************************************************************************** + * @file RTC/Calendar/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 + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup RTC_Calendar + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +#define RTCClockOutput_Enable /* RTC Clock/64 is output on tamper pin(PC.13) */ + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +__IO uint32_t TimeDisplay = 0; +USART_InitTypeDef USART_InitStructure; + +/* Private function prototypes -----------------------------------------------*/ +void RTC_Configuration(void); +void NVIC_Configuration(void); +uint32_t Time_Regulate(void); +void Time_Adjust(void); +void Time_Show(void); +void Time_Display(uint32_t TimeVar); +uint8_t USART_Scanf(uint32_t value); + +#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__ */ + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program. + * @param None + * @retval None + */ +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 + */ + + /* Initialize LED1 mounted on STM3210X-EVAL board */ + STM_EVAL_LEDInit(LED1); + + /* 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 = 115200; + 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; + + STM_EVAL_COMInit(COM1, &USART_InitStructure); + + + /* NVIC configuration */ + NVIC_Configuration(); + + if (BKP_ReadBackupRegister(BKP_DR1) != 0xA5A5) + { + /* Backup data register value is not correct or not yet programmed (when + the first time the program is executed) */ + + printf("\r\n\n RTC not yet configured...."); + + /* RTC Configuration */ + RTC_Configuration(); + + printf("\r\n RTC configured...."); + + /* Adjust time by values entered by the user on the hyperterminal */ + Time_Adjust(); + + BKP_WriteBackupRegister(BKP_DR1, 0xA5A5); + } + else + { + /* Check if the Power On Reset flag is set */ + if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET) + { + printf("\r\n\n Power On Reset occurred...."); + } + /* Check if the Pin Reset flag is set */ + else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET) + { + printf("\r\n\n External Reset occurred...."); + } + + printf("\r\n No need to configure RTC...."); + /* Wait for RTC registers synchronization */ + RTC_WaitForSynchro(); + + /* Enable the RTC Second */ + RTC_ITConfig(RTC_IT_SEC, ENABLE); + /* Wait until last write operation on RTC registers has finished */ + RTC_WaitForLastTask(); + } + +#ifdef RTCClockOutput_Enable + /* Enable PWR and BKP clocks */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE); + + /* Allow access to BKP Domain */ + PWR_BackupAccessCmd(ENABLE); + + /* Disable the Tamper Pin */ + BKP_TamperPinCmd(DISABLE); /* To output RTCCLK/64 on Tamper pin, the tamper + functionality must be disabled */ + + /* Enable RTC Clock Output on Tamper Pin */ + BKP_RTCOutputConfig(BKP_RTCOutputSource_CalibClock); +#endif + + /* Clear reset flags */ + RCC_ClearFlag(); + + /* Display time in infinite loop */ + Time_Show(); +} + + +/** + * @brief Configures the nested vectored interrupt controller. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* Configure one bit for preemption priority */ + NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); + + /* Enable the RTC Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = RTC_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); +} + +/** + * @brief Configures the RTC. + * @param None + * @retval None + */ +void RTC_Configuration(void) +{ + /* Enable PWR and BKP clocks */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE); + + /* Allow access to BKP Domain */ + PWR_BackupAccessCmd(ENABLE); + + /* Reset Backup Domain */ + BKP_DeInit(); + + /* Enable LSE */ + RCC_LSEConfig(RCC_LSE_ON); + /* Wait till LSE is ready */ + while (RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET) + {} + + /* Select LSE as RTC Clock Source */ + RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE); + + /* Enable RTC Clock */ + RCC_RTCCLKCmd(ENABLE); + + /* Wait for RTC registers synchronization */ + RTC_WaitForSynchro(); + + /* Wait until last write operation on RTC registers has finished */ + RTC_WaitForLastTask(); + + /* Enable the RTC Second */ + RTC_ITConfig(RTC_IT_SEC, ENABLE); + + /* Wait until last write operation on RTC registers has finished */ + RTC_WaitForLastTask(); + + /* Set RTC prescaler: set RTC period to 1sec */ + RTC_SetPrescaler(32767); /* RTC period = RTCCLK/RTC_PR = (32.768 KHz)/(32767+1) */ + + /* Wait until last write operation on RTC registers has finished */ + RTC_WaitForLastTask(); +} + +/** + * @brief Returns the time entered by user, using Hyperterminal. + * @param None + * @retval Current time RTC counter value + */ +uint32_t Time_Regulate(void) +{ + uint32_t Tmp_HH = 0xFF, Tmp_MM = 0xFF, Tmp_SS = 0xFF; + + printf("\r\n==============Time Settings====================================="); + printf("\r\n Please Set Hours"); + + while (Tmp_HH == 0xFF) + { + Tmp_HH = USART_Scanf(23); + } + printf(": %d", Tmp_HH); + printf("\r\n Please Set Minutes"); + while (Tmp_MM == 0xFF) + { + Tmp_MM = USART_Scanf(59); + } + printf(": %d", Tmp_MM); + printf("\r\n Please Set Seconds"); + while (Tmp_SS == 0xFF) + { + Tmp_SS = USART_Scanf(59); + } + printf(": %d", Tmp_SS); + + /* Return the value to store in RTC counter register */ + return((Tmp_HH*3600 + Tmp_MM*60 + Tmp_SS)); +} + +/** + * @brief Adjusts time. + * @param None + * @retval None + */ +void Time_Adjust(void) +{ + /* Wait until last write operation on RTC registers has finished */ + RTC_WaitForLastTask(); + /* Change the current time */ + RTC_SetCounter(Time_Regulate()); + /* Wait until last write operation on RTC registers has finished */ + RTC_WaitForLastTask(); +} + +/** + * @brief Displays the current time. + * @param TimeVar: RTC counter value. + * @retval None + */ +void Time_Display(uint32_t TimeVar) +{ + uint32_t THH = 0, TMM = 0, TSS = 0; + + /* Reset RTC Counter when Time is 23:59:59 */ + if (RTC_GetCounter() == 0x0001517F) + { + RTC_SetCounter(0x0); + /* Wait until last write operation on RTC registers has finished */ + RTC_WaitForLastTask(); + } + + /* Compute hours */ + THH = TimeVar / 3600; + /* Compute minutes */ + TMM = (TimeVar % 3600) / 60; + /* Compute seconds */ + TSS = (TimeVar % 3600) % 60; + + printf("Time: %0.2d:%0.2d:%0.2d\r", THH, TMM, TSS); +} + +/** + * @brief Shows the current time (HH:MM:SS) on the Hyperterminal. + * @param None + * @retval None + */ +void Time_Show(void) +{ + printf("\n\r"); + + /* Infinite loop */ + while (1) + { + /* If 1s has been elapsed */ + if (TimeDisplay == 1) + { + /* Display current time */ + Time_Display(RTC_GetCounter()); + TimeDisplay = 0; + } + } +} + + +/** + * @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; +} + +/** + * @brief Gets numeric values from the hyperterminal. + * @param None + * @retval None + */ +uint8_t USART_Scanf(uint32_t value) +{ + uint32_t index = 0; + uint32_t tmp[2] = {0, 0}; + + while (index < 2) + { + /* Loop until RXNE = 1 */ + while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_RXNE) == RESET) + {} + tmp[index++] = (USART_ReceiveData(EVAL_COM1)); + if ((tmp[index - 1] < 0x30) || (tmp[index - 1] > 0x39)) + { + printf("\n\rPlease enter valid number between 0 and 9"); + index--; + } + } + /* Calculate the Corresponding value */ + index = (tmp[1] - 0x30) + ((tmp[0] - 0x30) * 10); + /* Checks */ + if (index > value) + { + printf("\n\rPlease enter valid number between 0 and %d", value); + return 0xFF; + } + return index; +} + +#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****/ -- cgit v1.2.3