Resetting CW305

1

Hi,
I don’t have a background in working with FPGA boards. Previously, when I used the CW305 board, the default setting was that VCC-INT was set to 100 and the JTAG LED light was blinking. However, it’s been a few months since I last used the board, and when I tried to use it again, I noticed that VCC-INT was set to 015, the JTAG LED light was blinking, and LED LE302 is always on, even after turning the power off and on again. I would like to revert to the previous default settings, as this current setting conflicts with the bitstream implementation. I would appreciate your help with this issue.

2

How are your powering it, and what are the switch positions? Any chance this switch is in the “up” position?

3

I am powering through USB.
Yes, I had it up position. Even if I change this switch it is not changing anything. Please find the below picture of my CS305 board setting.

cw305
cw305960×1280 326 KB

Thank you so much for offering to help with this issue.

4

It’s supposed to be down. What are the LEDs showing when it’s in the correct (down) position?

5

When it is down, it is still same. LE03 light is on, which I have circled in the previous image.

6

Ah, you need to set SW5 to the on (left) position!

8

I tried in the left most position. It is still same. Can I keep it in the middle position?

9

No. To cut down on the back-and-forth, carefully follow the instructions below.
First, let’s define our switches:

  • switch 1, power supply: next to the USB jack (picture)
  • switch 2, external supply: next to the banana jacks (picture)
  • switch 3, FPGA power (picture)
  1. Orient the board so that the USB and DC jacks are on the left-hand side (like this).
  2. Always keep switch 3 to its left-most position.
  3. Always keep switch 2 to its down position.
  4. Connect a USB cable and put switch 1 in its down position.
    (a) What is the status of all LEDs?
    (b) If the LCD display does not show 1.00, try a different USB cable, then a different USB port, then a different computer.
  5. If (3) doesn’t work, power the board from the 5V DC jack. Set switch 1 to the up position. What is the status of all the LEDs?