Hi: Here is a open source GPIB project that developed by some Chinese amateurs, the developer released all of the information about hardware and software, including circuit diagram, PCB diagram, firmware source code, communication protocol and upper computer PC program (late on). The project name is CARE.If you are interested you can build your own CARE, but please don’t use this open source project for commercial purpose.
Specifications: WiFi expand interface （6 IOs + 3.3V power supply） Sensor expand interface (2 IOs + 3.3V power supply) j-link SWD mode interface TF Card slot RJ-45 connector (100Mbps) USB (via CP2102 connect to LPC1768, can be set to ARM inside USB connect by jumper) Mode Switch (Online or offline acquire) MCU: LPC1768 USB TO 232: CP2102 Network PHY: LAN8720A Temperature sensor: DS18B20, DHT22 and other model single bus sensor will be support at late version. GPIB interface chip: SN75160，SN75162 PCB size：60mm*100mm CARE firmware: https://git.oschina.net/gpib/CARE.git Upper Compter program: https://git.oschina.net/xknife/MonitorKnife.git (Under Construction) Circuit diagram and PCB: https://git.oschina.net/gpib/CARE-DXP.git BOM list: http://bbs.38hot.net/forum.php?mod=viewthread&tid=115514 BOM_GPIB.rar (will put file in GIT late) Protocol mode: 1, Transport protocol transfer mode, the GPIB address of equipment can be user define of LAN USB and WIFI port 2, The developers defined GPIB protocol, support multi-address and multi-equipment, the protocol file is (so far, only Chinese language version) http://bbs.38hot.net/forum.php?mod=viewthread&tid=115514 Care通讯协议说明-b1.v150410.2.rar Testing tool” 1, Some Serial port tools like as sscom 3.2; send HEX or ASCII command to CARE via serial port; 2,TPC&UDP testing tools, send control or SCPI command to CARE via Ethernet port; 3,ASCII code converting tool The project is not over, so far, the hardware part is OK, but the code of offline acquire and Talk Only function is not finish. (coming soon….), some various equipments were tested by SCPI or old HP GPIB command, they work very well. The Care Project Post in Chinese 38hot forum, many pics: http://bbs.38hot.net/forum.php?mod=viewthread&tid=115514 This open source project can't be used for commercial purpose. The main developer’s email: [email protected] Have a fun! Hui Zhang /BA6IT _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
