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V&A VA18B multimeter cable, serial communication
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This is a set of example captures of the serial (UART) communication and
its timings on a USB cable for the V&A VA18B digital multimeter.
The UART parameters are 2400 baud, with 8n1 settings.
Details:
TODO.
Logic analyzer setup
--------------------
The logic analyzer used was a Saleae Logic (at 16MHz):
Probe USB cable PCB
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1 (black) IR LED
2 (brown) TX (PL2303HX)
3 (red) RX (PL2303HX)
4 (orange) USB DM
5 (yellow) UBS DP
Data
----
The sigrok command line used was:
sigrok-cli -d fx2lafw:samplerate=16mhz -p '1=IR LED,2=TX,3=RX,4=DM,5=DP' \
-o v_and_a_va18b_cable_ir_serial_usb.sr --time 10s
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