SCM and compilation called examples

用软件模拟I2C的源代码，内有说明-I2C software simulation source code, which is described

4X4键盘扫描源程序 适用于基于Keil80C51 -4X4 Mirror扫captured Tai-ying, the most序适using quilt prices quilt Keil80C51

LPC的一个小试验源码,你不妨可以试试，-lpc xiaoshiyandeyuanma nikeyishishi

USBASP制作、驱动安装、程序下载全过程. 固件+驱动+pcb。-USBASP production, driver installation, download the entire process. Firmware+ Driver+ Pcb.

STM32 FSMC 驱动TFT LCD-STM32 FSMC drive TFT LCD

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.

这是GPS全球卫星定位系统授时的下位机部分，对于单片机初学者应该很有帮助吧-This is the GPS satellite global positioning system when awarding the next crew, for SCM beginners should it helpful

用keil51开发的7219程序实现led显示-7219 with the development of procedures keil51 realize led display

FM12864液晶显示程序驱动，可以实现简单的数字，图像的显示-FM12864 process-driven liquid crystal display, you can realize simple figures, images are displayed

应用actel公司的a3p030进行调试通过的LCD1602显示程序 可以应用此程序进行网站显示 等-Application a3p030 company actel debug LCD1602 display program adopted this procedure can be applied to web display.