这是用asm编写的IOA口使用程序，是用16位的凌阳单片机汇编

高精度实时时钟－SD2001驱动程序 [文件名] Sd.c [功能] 对sd2001时钟进行时实读写，并对其内部的ram进行操作-high-precision real-time clock-SD2001 driver [Name] Sd.c [function] sd2001 real-time clock for literacy, and its internal operations for the ram

用8个数码管，用一片48和一片138控制 的子程序，-with eight digital control with a 48 and a control subroutine 138,

单片机播放音乐 通过控制高低电平让蜂鸣器发出不同的声音 做相应的延时实现节拍 开发环境是keil-SCM music by controlling the high-low so that the buzzer sounds different delay accordingly to achieve the beat

FAT32文件系统在51单片机上实现，CPU类型是sst89c58-FAT32 file system in the 51 SCM to achieve, CPU type is SST89C58

51单片机对 siemens4442卡的底层驱动程序 把.rar改成.C即可-51 Singlechip siemens4442 card on the bottom of the driver. Rar changed. C can be

lcd 1602A 底层函数，方便使用。基本功能函数都已具备。-the underlying function lcd 1602

采用UART方式0与LM74通信。 用C8051f020的P0.7作片选，主机通过TXD发送时钟信号，实现同步通信,半双工.RXD 作双向数据线.用六位数码管显示LM74采集的温度值-The use of UART communication mode 0 and LM74. P0.7 used for the C8051F020 chip select, host TXD sent through the clock signal, to achieve synchronous communication, half-duplex. RXD for bi-directional data line. With six digital tube display LM74 temperature collected

毕业设计 可编程控制器 可以设定时间控制设备 程序和电路图都是正确得 -Graduation programmable controller can be set to the time control equipment, process and circuit diagrams are correct too

TMS302F2812 的 EVM 很好的硬件设计参考资料-TMS302F2812 the EVM good hardware reference design

CYGNAL单片机，C8051FXXX应用例程4-CYGNAL microcontroller, C8051FXXX routines 4