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I understand gated clock is a bad design practice but this was done in order to "freeze" the parallel..I thought that maybe the arduino is not synchronised which arose the encountered problem...if I remove the debounce codes and the gated clock still I get no results....
Hi :)
I need to test my SIPO codes on the Nexys3 board..Actually I am using an Arduino as adc which has as an input from power supply and its output is fed to Nexys3.. The codes then convert this digital serial value to parallel value..On stimulating the codes the desired waveform are obtained...
Hi I am trying to write codes for half step for stepper motor and I am using a clock divider so as I can choose the frequency of the motor. But I am getting errors, any help would be appreciated. Thanks in advance :)
library IEEE;
use IEEE.STD_LOGIC_1164.all;
use IEEE.STD_LOGIC_unsigned.all...
so what can i use ??? is there any other option???
Problem is that I learnt C programming first then now I am learning VHDL so I tend to use C as a reference...
Hello,
I rewrote the codes for the Serial to Parallel and problem is that I need 7 8-bit parallel outputs but on stimulating I am getting only 1 8-bit parallel output..the other 6 output are similar....according to my simulation my Din (serial input) is 20 bits.. atleast 2 proper 8-bit parallel...
Hello,
I am encountering a problem with microstepping.
for full steps:
when "00" => dout <= "1000"
when "01" => dout <= "0100"
when "10" => dout <= "0010"
when "11" => dout <= "0001"
for half steps:
when "000" => dout <= "1000"
when "001" => dout <= "1100"
when "010" => dout <= "0100"
when...
Hello Everyone,
I am using a stepper motor (5V, 28BYJ-48) and the problem is that I am unable to make the motor rotate by 1 degree...I was able to rotate it at a frequency approx 94Hz (the minimum frequency I could use to enable rotation)....I think I require a gearing mechanism but my knowledge...
Even I am working on a similar project...I am using photodiodes as sensors and two stepper motors and FPGA as controller. Even I would suggest stepper motors :)
Hello Everyone,
I am working on some codes for the serial-to-parallel converter...in fact I need to convert 6 serial values ( from 6 sensors which have already been converted to digital form) to parallel form which will be later fed to a comparator... I wrote some codes but I am encountering...
From the datasheet, in order to have continuous reading, the AD7193 must be configured, what type of configuration is required?? and it also says that sufficient SCLK must be applied to ADC, what number of cycles are required?? I know I am being really annoying with my questions but i really...
Hi,
I used the clock divider to set the clock of the ADC (according to dataheet 4.8kHz)... I will input an analog signal to the ADC...problem is how to check for the end of the conversion to digital so that i can send it to the FPGA??
Thanks
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