外设芯片一般将通信协议封装在内部，DS1302应该是I2C通信的吧。MCU先发送一串起始信号（通过DS1302_WRITE_BYTE实现），对芯片进行初始化，这个很简单，只是MCU发送数据控制DS1302，DS1302内部的电路识别到这个数据，就回个应答信号（注意这个是DS1302的应答，不要你写什么程序）；DS1302_READ_BYTE是MCU读取...
write_ds1302_byte(add)for(i=0;i>1sck=0if(io)value=value|0x80;//?sck=1为什么value=value|0x80如果是1就把最高位置1如果是0就不置1,最高位为0(右移的时候是最高位填充的是0)?如果是0或0x80最高位还是1啊?初值value=00000000右移还是00000000判断0,1如果这个bit是0那0或10000000最高位还是1啊...
Data can be transferred to and from the clock/RAM 1 byte at a time or in a burst of up to 31 bytes. The DS1302 is designed to operate on very low power and retain data and clock information on less than 1μW.LibDriver DS1302 is a full function driver of ds1302 launched by Lib...
);void SendByte(u8 dat);voidRead_RTC(u8 *p);void Set_RTC(u8 *p 看得开就会开2019-10-11 01:35:07 为什么DS1302时间初始化是从00:00:00开始的? #include "ds1302.h"uchar codeREAD_RTC_ADDR[7] = {0x81, 0x83, 0x85, 0x87, 0x89, 0x8b ...
开发者ID:openube,项目名称:android_kernel_sony_c2305,代码行数:58,代码来源:rtc-ds1305.c 示例4: eeprom_status ▲点赞 1▼ /* eeprom_status - read the status register */chareeprom_status(){charbyte; EE_CS =0;/* active eeprom */spi_write_then_read(EE_RDSR);/* send read-status-regis...
Micropython_TinyRTC - Driver for DS1307 RTC. micropython-mcp7940 - Driver for the Microchip MCP7940 RTC. micropython-ds1302-rtc - DS1302 RTC Clock driver for MicroPython. DS3231micro - MicroPython library for DS3231. micropython-ds1307 - MicroPython driver for DS1307 RTC. esp-ds3231-micropytho...