这个里面有max3140的配置初始化,到发送数据,用的是查询方式,(可以改为中断方式) RS232-RS485的串口通信问题,通信成功,在单片机里可以直接用,只需要自己配置引脚 通信中用的是SPI协议。
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rs232 rs485等 串口操作控件 含完整源码 试过很多该类控件,就这个好用,已经在项目上用了4-5年 没有发现任何问题
2021-08-29 20:56:55 6.58MB rs232 rs485
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· 单片机:ATmega32A · 软件 :Atmel Studio 7.0 · 硬件 :RS485 · 功能 :实现modbus协议 03功能码 06功能码
2021-08-29 12:02:50 1.41MB modbus AVR RS485 AtmelStudio7.0
行业分类-外包设计-家具包装封箱机PLC与变频器之间RS485通讯控制系统结构.zip
485集线器,485HUB,九汉科技485集线器,采用全光电隔离,使电源,信号全部隔离开,在485总线中更加稳定。。
2021-08-28 20:25:13 98KB 485体线器 485HUB
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16路DI开关量/干接点信号转RS485/232zip,16路DI开关量/干接点信号转RS485/232
2021-08-28 07:58:09 422KB 综合资料
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c语言操作串口支持485/232 c语言操作串口支持485/232 c语言操作串口支持485/232 c语言操作串口支持485/232 c语言操作串口支持485/232
2021-08-26 21:06:59 5KB uart示例代码 RS232 RS485 switch
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DS1302N DS2460 RS232 RS485 CH340G W25Q80B ALTIUM原理图库封装库(AD集成库)39个合集,PcbLib+SchLib格式,Altium Designer原理图库+PCB封装库, Library Component Count : 39 Name Description ---------------------------------------------------------------------------------------------------- 74HC123D 74HC123D 74HC14 74HC14 74HC573 74HC573 74LS74A Dual D-Type posotive-edge-triggered flip-flops with preset and clear 93LC46B EEPROM SPI AT24C16 EEPROM I2C AT45DB041D Flash IC BL55076 LCD Driver CAN CAN 5V CD4066B Imported CH340G USB to TTL Serial / UART CH340G- USB to TTL Serial / UART CP2102GMR CP2102GMR DAC2904 DAC2904 DAC8541 DAC8541 DM9161AE Ethernet PHY DP83848I Ethernet PHY DS1302N Trickle Charge Timekeeping Chip DS18B20 DS2460 FE2.1 FRAM FRAM FM25L64 FT2232D FT2232D Usb Jtag Uart IS62WV51216 MAX811 4-Pin Voltage Monitors with Manual Reset Input MAX812 4-Pin Voltage Monitors with Manual Reset Input MCP41010 MCP41010 MT9D111 MT9D111 PCF8575 PCF8575 PCF8583 RTC RS232 RS232 IC 3.3V RS485 RS485 IC 3.3V SHT21 SHT21 SN74LVC125A Quadruple Bus Buffer Gate With 3-State Outputs TLV320AIC3254 TLV320AIC3254 TPS3823-33 ULN2003A ULN2803A W25Q80BLUXIG W25Q80BLUXIG Component Count : 25 Component Name ----------------------------------------------- DFN-6 LQFP48 MT9D111 QFN20 QFN28 QFN32 QFP64A SO-8 so-16 SOIC-4 SOIC8 SOIC14 SOIC18 SOP-4 SOP-14 SOP-20 SOT-23-5 SOT-143 SSOP14 SSOP24 TO-92 TQFP48 TSOP44 TSQFP32 USON
驱动包含 1.HXSP-2108D USB To RS-232 2.HXSP-2108F USB To RS-485 3.HXSP-2108G USB To RS-485 RS-422 4.PL2303 ReadMe [Root] Driver for Windows operating system: PL-2303 Driver Installer PL-2303 Vista Driver Installer [Folder] WinCE: Driver for WIN CE Win98_ME: Driver remover for Win98, WIN ME Win2K_XP: Driver remover for Win 2K, Win XP mac: Driver for MAC linux: Driver for Linux, some useful tips for the driver
2021-08-26 17:00:25 15.69MB HXSP-2108x PL2303驱动 USB转RS232 USB转RS485
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门禁类其它代码有其它需求可以发给我,本程序使用的mega128单片机,与上位机通讯是RS485方式
2021-08-26 09:54:18 26KB 门禁
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