Still Can't connect k8048

Kits Microcontroller Programmer - Experimenting Project
1

Can someone please help my cause. it’s been two months and I still can’t connect my K8048. I tried on a older XP machine could not find the device saying no velleman device is attached. So I purchased a new serial port connector for my win 8.1 machine at home. I see com 1 in the device manager, the software installs just fine. but same problem can’t find device. I tried using an older serial cable that I used to use for a modem, then I tried making a cable from the instructions from the kit. Same problem. If anyone has gone through this problem could you please shine some light on me. Thank You in advance.

2

Maybe there is an assembly problem with the K8048.
If you can provide LINKS to HI-RES and SHARP pictures of both component and solderside, then we can take a look and maybe provide some feedback.
We also offer inspection/repair if you send in your kit.

3

Here is a link to some pictures, let me know if you need more pictures.

onedrive.live.com/redir?resid=8 … =folder%2c

Also is there a way to test the com port and the cable? it would be nice to know that all is working up to the connector on the PIC.

4

Hi Kid,

Maybe a silly remark but…
Are you using an usb-to-serial cable?

I see a leaflet under the 4th picture from the left “CablesToGo”

If so and the cable uses a Prolific chip (PL2303), it will not work.

The only usb-to-serial working is one with a FTDI chip.

You can buy one at conrad. see: conrad.nl/nl/usb-20-adapter … 71791.html

Hope this helped a bit.

Beer

5

No I am not using a serial to USB, Does anyone know where I can get the proper cable. At least I will be able to eliminate the cable out of the equation.

6

Just measure the cable:
1 to 1
2 to 2
3 to 3
4 to 4
and so on.

2 and 3 should not be twisted.

Make sure you don’t have a cable with only 2,3 and 5 connected (Rxd, Txd and Gnd)

7

You should be able to find one at any electronics shop or computer store.
Tell them you need a straight through cable.
not a cross over or null modem cable.

The K8048 does require a non regulated 12 volt or regulated 15 volt DC adapter center positive.