// 写入数据到备份寄存器 BKP_WriteBackupRegister(BKP_DR1, writeData[0]); BKP_WriteBackupRegister(BKP_DR2, writeData[1]); // 读取数据从备份寄存器 readData[0] = BKP_ReadBackupRegister(BKP_DR1); readData[1] = BKP_ReadBackupRegister(BKP_DR2); // 在此处可以添加代码来验证读取的数据是否正确 ...
在BKP_DATA函数中打开PWR时钟,使能BKP, 先通过WriteToBackupReg函数写入数据,在通过CheckBackupReg读取写入的数据是否正确。两个函数代码如下:
* @brief Writes user data to the specified Data Backup Register. * @param BKP_DR: specifies the Data Backup Register. * This parameter can be BKP_DRx where x:[1, 42] * @param Data: data to write * @retval None */ void BKP_WriteBackupRegister(uint16_t BKP_DR, uint16_t Data) ...
* This parameter can be BKP_DRx where x:1, 42 * param Data: data to write * retval None */void BKP_WriteBackupRegister(uint16_t BKP_DR, uint16_t 9、Data) _IO uint32_t tmp = 0; /* Check the parameters */ assert_param(IS_BKP_DR(BKP_DR); tmp = (uint32_t)BKP_BASE; ...
void BKP_WriteBackupRegister(uint16_t BKP_DR, uint16_t Data) { __IO uint32_t tmp = 0; /* Check the parameters */ assert_param(IS_BKP_DR(BKP_DR)); tmp = (uint32_t)BKP_BASE; tmp += BKP_DR; *(__IO uint32_t *) tmp = Data; ...
void BKP_WriteBackupRegister(uint16_t BKP_DR, uint16_t Data) { __IO uint32_t tmp = 0; /* Check the parameters */ assert_param(IS_BKP_DR(BKP_DR)); tmp = (uint32_t)BKP_BASE; tmp += BKP_DR; *(__IO uint32_t *) tmp = Data; ...
可以输出RTC校准时钟、RTC闹钟或秒脉冲voidBKP_RTCOutputConfig(uint16_tBKP_RTCOutputSource);// 设置RTC校准值voidBKP_SetRTCCalibrationValue(uint8_tCalibrationValue);// 写指定的BKP数据寄存器voidBKP_WriteBackupRegister(uint16_tBKP_DR,uint16_tData);// 读指定的BKP数据寄存器uint16_tBKP_ReadBackupRegister...
*(__IO uint32_t *) tmp = Data; } 即只需要提供两个参数,第一个是BKP地址,第二个是数据,两个都是16位的数据。第二个参数没有问题,第一个参数如何提供呢?看例子中的代码: /** * @brief Writes data Backup DRx registers. * @param FirstBackupData: data to be written to Backup data register...
bkp_writebackupregister函数的语法如下所示: ```c++ void bkp_writebackupregister(uint32_t reg, uint16_t data); ``` 在这个函数中,有两个参数: 1. reg:要写入数据的备份寄存器的编号。备份寄存器是用于存储关键数据以便在系统重启后恢复的特殊寄存器。 2. data:要写入备份寄存器的数据。 下面是一些关于...
Currently, we can read from the Backup Data Register (for example DR1) using: let device = pac::Peripherals::take().unwrap(); let _ = device.BKP.dr1.read().bits(); However, this will not be possible after calling rcc.bkp.constrain, becau...