Paul Chang

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  1. Dear sir, I would like to know Analog Outputs limitation. Does it can support the requirement ? AC Freq range 0.05 Hz~120Hz AC voltage range: -10mV ~ +10mV AC resolution : <0.1mV DC offset is greater than -1000mV ~ +1000mV: DC offset resolution 5mV special AC AC overload test : 1 Vpp @50Hz/60Hz Another question: Can it measure input loop current <0.1uA? Best Regards Paul
  2. Dear Sir, I took my NB and tried to read the JTAG-SMT2-NC module via USB, but I always had the error "usb device descriptor failure code" Is there any way to solve this problem? Best Regards Paul
  3. Hi Jon, Thanks for your answer. Best Regards, Paul
  4. Dear Sir, I don't know why can not assign the XADC package pin to my port. It is assign F19 and G19 automation. Please see my attach file. How to define the constraint ? runme.log CRITICAL WARNING: [Vivado 12-1411] Cannot set LOC property of ports, Could not legally place instance vauxn6_IBUF_inst at E16 (IOB_X1Y147) since it belongs to a shape containing instance u_xadc/inst/u_xadc/inst. The shape requires relative placement between vauxn6_IBUF_inst and u_xadc/inst/u_xadc/inst that can not be honoured because it would result in an invalid location for u_xadc/inst/u_xadc/inst. [D:/Basys3_test/lab4_zed/project_1/project_1.srcs/constrs_1/imports/zed.xdc:72] CRITICAL WARNING: [Vivado 12-1411] Cannot set LOC property of ports, Could not legally place instance vauxp6_IBUF_inst at F16 (IOB_X1Y148) since it belongs to a shape containing instance u_xadc/inst/u_xadc/inst. The shape requires relative placement between vauxp6_IBUF_inst and u_xadc/inst/u_xadc/inst that can not be honoured because it would result in an invalid location for u_xadc/inst/u_xadc/inst. [D:/Basys3_test/lab4_zed/project_1/project_1.srcs/constrs_1/imports/zed.xdc:75] Best Regards, Paul osc_top.rar
  5. Hi attila, Thanks for your help. Best Regards Paul
  6. Dear Sir, Please see the attach picture. Sorry, I don't know its noun. (yellow background) Can I hide it? Best Regards, Paul
  7. Hi Jon, We also test the AD5 Arduino example project : https://reference.digilentinc.com/reference/pmod/pmodad5/start#example_projects https://www.hackster.io/56488/using-the-pmod-ad5-with-arduino-uno-b3527d AD7193 library : https://github.com/annem/AD7193/tree/master/examples It can work,but ADC value is always zero . We also change the board and it is same situation. AVDD & DVDD are 3.2v,input signal is 1V amplitude 。 Best Regards Paul
  8. Hi Jon, I use the programming Script without any modify. https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD5/bin Best Regards Paul
  9. Paul Chang

    PMODAD5 test

    Dear Sir, I have tested zedboard and PMODAD5. (Refer as https://wiki.analog.com/resources/fpga/xilinx/pmod/ad7193) But the status of PMODAD5 seems strange. After download the bit and elf file . The putty show : >>> Initial Register Values for AD7193 <<< Status Register: 0x1 Mode Register: 0xFFFFFF Config Register: 0x3FD23F ID Register: 0xA2 GPOCON Register: 0x0 Offset Register: 0x800000 Full scale Register: 0x554320 Press any key to continue... When I push any key and I need to wait 2.5~4 min. Is it normal? My setting (IMG_1607.jpg) I also use the AD2 to generate signal (square wave 1hz,500mv) But the PMODAD5 seems capture the wrong data. (Please see the PMOD AD5.txt Best Regards, Paul PMOD AD5.txt