的各种操作和程序、RS23应用MSP430的例子…

急救车与交通灯）（1）南北与东西方向，每个方面由红黄绿三个灯控制（2）南北向：　红（30秒），黄（5秒），绿（25秒）　　　东西向： 红（35秒），黄（5秒），绿（25秒）　　　上述基本参数可以根据实际情况自行调整，灯的变化规律与实际路口规律相同，绿灯在最后5秒钟时，黄灯亮，然后红灯亮，不允许两个方面同时亮绿灯。（3）绿灯的时间显示在数码管上进行显示。（4）可以通过一个开关控制，当开关信号为0时，整个交通灯全灭提高要求：（1）设计一个紧急控制开关信号，当紧急开关信号为1时，两个方向的灯全为红灯。紧急开关撤消后，按照开关按下之前的状态继续运行（其参数要保存）。（2）设计一个夜间行车开关，当开关按下后，两个方向都只有黄灯闪烁，其它灯熄灭。（3）设计两个方向的亮时时间可调。-emergency vehicles and traffic lights) (1) North and South and east-west direction, each with three yellow-green from red lights control (2) to the north and south : red (30 seconds), yellow (5 seconds), Green (25 seconds) to things : red (35 seconds), yellow (5 seconds) Green (25 seconds) above basic parameters can be adjusted to the actual situation, the light changes with the actual law of the same intersection, the green light in the final five seconds, the yellow light is on, and then a red light, bright, not two fronts simultaneously bright green. (3) the green light at the time displayed on the digital display control. (4) can be controlled by a

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.

MAX7219用于键盘控制和led控制的专用芯片，对于初学者有很大的帮助。-MAX7219 uses in the keyboard control and the led control special-purpose chip, has the very big help regarding the beginner.

modbus的51单片机程序,C语言写成的,测试过了-Modbus 51 Singlechip process, C language, and tested the

关于电子热表的单片机原程序，该程序是利尔达公司在沈阳的技术研讨会上宣讲的例程-hot on the electronic table of SCM original program, which is the cellphone company in Shenyang technical seminar lectures on the routines

51单片机C语言应用程序实例精讲,讲解了大量51单片机的应用知识,并附有程序和电路图.-51 Single-chip C language application instance精讲, on a large number of 51 single-chip application of knowledge, together with the procedures and circuit diagrams.

51单片机的端口应用，绝对能用的，直接是开发板的程序，来下吧-51 port MCU applications, the absolute can be used, direct the development of board process to the next bar

单片机系统软件抗干扰方法，在设计大规模系统中需要主义的问题方法！-SCM software anti-jamming system, the large-scale system design needs of Marxist methods!

arm lpc2132 driver for GPIO_Leds8

单片机与MAX485通信子程序，供需要的人参考-SCM and MAX485 communication subroutines, for those who need it for reference