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Found 2 results

  1. This projects implements a custom function generator (FuncGen) implemented in VHDL on Nexys 4 DDR board using PmodDA4 and PmodAD2. Command signal to the function generator is supplied from Matlab through on-board UART bridge as a 16-bit long command word (unsigned integer). Digital command signal is converted into corresponding voltage signal by DAC (Pmod DA4), which can be used to drive external device. Feedback, implemented on the ADC (PmodAD2), allows user to read the actual level of the voltage signal. The feedback signal is sent back to the DTE (PC, Matlab), using the same UART bridge. Note, that ADC used external reference voltage of 2.5V to match the reference voltage of DAC. The current level of the voltage feedback signal is displayed on the on-board 8-digit seven segment display. a2d.vhd brgen.vhd clock.vhd dig2an.vhd disp.vhd fbin2bcd.vhd func_gen.vhd ibin2bcd.vhd rx.vhd ssd.vhd tx.vhd Nexys4DDR_Master.ucf func_gen.m
  2. Hello , i want to purchase PmodAD2 from digilent (link below) , to convert 3 analog voltage inputs rated at 50v (inputs for the spartan 3e board) i wonder if will i need to get a voltage module adapter or sensor to reduce the 50 volts to suitable voltage that can be converted by the PmodAD2. If so, what component do you recommend me to buy. Thank you With best Regards PmodAD2 link: http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,401,933&Prod=PMOD-AD2 Spartan 3E board link: http://www.digilentinc.com/Products/Detail.cfm?NavTop=2&NavSub=451&Prod=NEXYS2&CFID=7596564&CFTOKEN=fa03a7672cc367fb-F841DD50-5056-0201-029071F4B91BCA6E