51 Single-chip skewers on the driving design of the light emitting diode

"1. Experimental design Timing interrupt program, serial port P3.0 and P3.1 output, and 74LS164 shift register is used to drive the LED Timer 0 is in mode 1, 16 bits, and is interrupted once in 10ms 40h10ms timing counting unit The initial value of 41h is 01101b Bit address 00h = 1 Timing mode 1 is 10ms: thx = 0ech, TLX = 78h The serial port works in mode 0 without initialization 2. Reference procedure LPOUTEQU41H; Output buffer DISPEQU0DE00H; Display subroutine entry ORG0000H START:AJMPMAIN ORG000BH; Timer 0 interrupt service AJMPTINT0; Service program entry ORG0030H MAIN:MOVR0，#39H; Display buffer initialization MAIN_ 0: MOV@R0 ，#0 INCR0 CJNER0，#40H，MAIN_ 0 MOVLPOUT，#01101101B SETB00H MOVTMOD，#01H; MOVIE，#10000010B MOVTH0，#0ECH; 10ms:EC78H MOVTL0，#78H SETBTR0 MAIN_ 1:ACALLCONT; Main program loop SJMPMAIN_ one CONT:MOV3FH，LPOUT LCALLDISP; control program MOVSBUF，LPOUT; Serial port output RET Timer 0 interrupt service routine TINT0:MOVTH0，#0ECH MOVTL0，#78H PUSHACC; Protect the site PUSHPSW INC40H MOVA，40H CJNEA，#50，TINT0R MOV40H，#0 MOVA，41H MOVC，00H RRCA MOV41H，A MOV00H，C MOV3FH，A; Output display buffer TINT0R:POPPSW; Restore site POPACC Reti, read the full text, technical section Music playing program design of 51 single chip microcomputer Driving design of led by serial port of 51 single chip microcomputer PIC MCU realizes LCD1602 to display letter A Serial port connection with Proteus in 51 single chip microcomputer Explain the MCU stack in detail and download the enthusiast app Create an electronic circle of your contacts Pay attention to wechat of electronic enthusiasts Interesting and informative information and technology dry goods Focus on enthusiast class Lock in the latest course activities and technology live broadcast Electronic enthusiast observation Front line report, in-depth observation, latest information, collected 2 people collection Share:, comment Lin Chaowen PCB Design: pads tutorial, pads video tutorial, Zheng Zhenyu teacher: Altium designer tutorial, Altium designer video tutorial, Zhang Fei actual combat electronic video tutorial, Zhu Youpeng teacher: Hisilicon hi3518e tutorial, hi3518e video tutorial, Li Zeng teacher: signal integrity tutorial, high-speed circuit simulation tutorial, Huawei Hongmeng system tutorial, harmonyos video tutorial, saisheng: EMC design tutorial, EMC video tutorial Mr. Du Yang: STM32 tutorial, STM32 video tutorial, Tang zuolin: basic C language tutorial, basic C language video tutorial, Zhang Fei: Buck Power tutorial, buck power video tutorial, punctual atom: FPGA tutorial, FPGA video tutorial, Mr. Wei Dongshan: embedded tutorial, Embedded video tutorial Zhang Xianfeng: C language basic video tutorial Xu Xiaogang: Modbus communication video tutorial Wang Zhentao: NB IOT development video tutorial mill: FPGA tutorial, zynq video tutorial c language video tutorial linux driver development video tutorial Zhu Youpeng: u-boot source code analysis video tutorial harmonyos,  Press and hold the slider and drag to the far right Learn about new features Published, relevant recommendations Music playing program design of 51 single chip microcomputer Music score storage format unsigned char code musicname {pitch, length, pitch, length Published at 16:21, December 17, 2018 • 0 readings 51 MCU examples 35 - circuit and software Published at 14:28, December 17, 2018 • 1 Reading Analysis of characteristics and application method of P0 port of 51 single chip microcomputer Port P0 is a three state bidirectional I / O port. 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