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Yes. I am sure the pulse width is not rapidly varying. I tried with increment of "1" for "divrel1"in the below code line. The issue remains the same. So now I ordered 5V 20A SMPS to try.
if(divrel1<2100) then divrel1 <= divrel1+10;
I got stuck in my project. Small servo(MG90S) works perfectly with the above program. But when I connect little bigger servo(KS3527), it looks like the power is not enough and I can hear buzz... sound from inside the casing. In scope I am seeing the PWM signal.I am using 5V , 5A normal power...
Thanks for the clarification. I am new to VHDL , so asking silly questions. thanks.
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I have below VHDL code for RC Servo motor. I am using Spartan-6. When I execute the program the Servo moves to 180 degree position and again comes back to 0 degree position and it happens...
VHDL code flow in Xilinx ISE Design Suite 14.7
hi,
Is it possible to see code sequence in VHDL using Xilinx ISE Design Suite 14.7? I want to know which code line executes one after the other when the program is running. Hope you understood what I am trying to ask.
1) What should be the max increment we can give to divrel? How we decide that, by trial and error?
2)If I modify the program as below, it is supposed to reach the desired position with the maximum speed?.
process begin
wait until rising_edge(CLK50M);
if(ms10='1') then
if BTN(0)='0' then...
Hi,
With some research I found the below VHDL code for RC servo motor. I am using "ax309-xilinx-spartan-6" board.
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.NUMERIC_STD.ALL;
use IEEE.STD_LOGIC_unsigned.ALL;
entity SPI_Servo is
Port (
BTN : in...
Hi All,
Thank you very much for your valuable inputs. Now the program works as I wanted.
BTW I am working on a hobby robot where I am using 6 servos , so this exercise I did to understand how to create delay between the servos.
Hello VHDL Experts,
I am new to VHDL. I want to write a simple VHDL program which allows the LED to light up after 5 sec.I am using Spartan-6. The board contains 50 MHz Clock.That means my clock period should be 20 ns. So the value of delay should be equal to (5000000000 ns / 20 ns) =...
I wrote .ucf file myself and assigned the pins for each inputs/outputs.
Only Clock input pin I had some doubt. Thank you for clarifying that it should be T8. However, in .ucf file I tried with T8 as clock input and assigned pins for other inputs and outputs, but still the servo dint work. I am...
hi bking,
thank you for your reply,
No I haven't tried with Scope,I don't have one :-( . Yes I am using correct I/O pins in the FPGA. . About clock enables can you explain me bit in detail.
Also I have noticed 2 things,
1) When I compile the program in ISE design Suite 14.7 , for clock it...
Hi ,
Very recently I tried to learn VHDL using some online courses. With my limited knowledge and using the help of some experts online I wrote below code.
I am using ALINIX SPARTAN 6 XILINX board and Servo KS-3527...
oh ok...
For the above code I have hex file for Atmega 8 and 3.68 Mhz crystal .Can i use the same code with Atmega 8 and 16 Mhz crystal dev board.? Or should i replace the 16Mhz Crystal with 3.68Mhz in the a Atmega 8 dev board and use the hex file.? Please let me know.
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