是一个关于C51和18B20的测温程序,大家可以参考一下.

悠景2.23oled演示代码，可以在DEMO板显示-Univision 2.23oled demo code, you can board at the DEMO show

m25p64是AT退出的一款大容量flash存储器，8Mbyte.串行通信方式，极大的节省了硬件资源。-64Mbit of flash memory.page program(up 256 byte)in 1.4ms.sector erase (512Kbit)

24系列eeprom的读写程序，绝对经典，只要根据自己需要改一改就行，采用模拟IIC总线的方式-24 Series EEPROM reading and writing process, an absolute classic, as long as the need to simply on the basis of their own line, using simulation methods IIC Bus

嵌入式开发板搭建最小系统,在嵌入式开发板上，建立内核，文件系统等等，使最小系统能够在其上运行-to build the minimun system on a board, embedded software programms.you can rely on it to impletement the basic function of an embedded system

功能： 1、作为下位机采集8255数据并将此数据通过通讯送出， 2、采集数据为BCD，先转换成二进制，处理后再转换成BCD 3、通讯采用方式3，多机通讯，上位机发地址时TB8=1，其他TB8=0 下位机SM2=1，RB8=1时产生中断后使SM2=0收发数据，结束后SM2=1-Features: 1, as under the 8255-bit machine data collection and communications sent through this data, 2, collected data for the BCD, first converted into binary, and then converted to deal with BCD 3, communication using methods 3, multi-machine communication, PC-fat address TB8 = 1, other TB8 = 0 under the digital machine SM2 = 1, RB8 = 1 when the failure to make SM2 = 0 to send and receive data, after the end of SM2 = 1

ZLG7290应用子程序，数码管显示与键盘管理芯片ZLG7290的标准80C51驱动程序C文件，此程序调试通过。-Subroutine ZLG7290 applications, digital tube display and keyboard management ZLG7290 standard 80C51 chip driver C files, this program through the debugger.

SPI是一个环形总线结构，由ss（cs）、sck、sdi、sdo构成，其时序其实很简单，主要是在sck的控制下，两个双向移位寄存器进行数据交换。 假设下面的8位寄存器装的是待发送的数据10101010，上升沿发送、下降沿接收、高位先发送。 那么第一个上升沿来的时候 数据将会是sdo=1；寄存器=0101010x。下降沿到来的时候，sdi上的电平将所存到寄存器中去，那么这时寄存器=0101010sdi，这样在8个时钟脉冲以后，两个寄存器的内容互相交换一次。这样就完成里一个spi时序。 -SPI bus is a ring structure, by ss (cs), sck, sdi, sdo composition, its timing is actually very simple, mainly under the control of the sck and two bi-directional shift register for data exchange. Assuming the following 8-bit register is loaded to send the data to be 10,101,010, rising to send, receive falling edge, high first sent. Well, the first rising edge to the time data will be sdo = 1 register = 0101010x. Falling edge comes, sdi on the level will be stored to the register, then register at this time = 0101010sdi, so 8 clock pulse later, the contents of two registers to exchange time. This will be completed in a spi timing.

大容量FLASH存储器29C040的C51读写程序 -large-capacity flash memory reader 29C040 the procedures C51

一个电子产品开发时的部分c代码B!绝对能用!-When an electronic product development part of c code B! Absolutely can!

MAX197多量程A/D转换器及应用，与8031单片机配合-MAX197 Multi-range A/D converter and application, with the 8031 single-chip microcomputer with