lexusbest

https://drive.google.com/file/d/1yFM...ew?usp=sharing

I uploaded it again, in this case as a .zip

Blazinbeaver

Hi there, I’ve pretty much built the decoder and amp. I have programmed the cy8kit-059 using the ver 7 beta file and installed the windows certified drivers. The problem I have it that the board does not power on when connecting the micro usb. Any ideas why this is, or is it just a faulty board? I haven’t connected it to the decoder as yet. Thanks

mv4wd

if your build doesn't include at least the crystal the board will not run. Check that first, then check you don't have a short on power rails

Blazinbeaver

Thanks, have just connected it to the decoder and the pc has now detected it. time to complete the rest of the build now.

Blazinbeaver

Hi Marco, I now have the decoder, amp and 3 transponders built. When testing the voltages on the amp everything is fine, however on the decoder I am only getting 4.11 across the vcc and gnd pins when connecting the 5v supply. All other voltages are then .6v down on the one in the schematic, do you have any idea why this would be? I will try and upload some pictures tomorrow if it helps?

thanks
Pete

Snowblind

Do you have that low of a voltage on the pins when the cy8kit disconnected from everything. If so then the cable you are using not a good one or USB port is not working to spec. Try plugging into a powered USB hub. You plugged into laptop? I have seen crappy power output on USB ports on some of those.

If the voltage is closer to 5v voltage when disconnected from everything then I check your wiring over again.

Snowblind

hey mv4wd

I had some RL stuff come up I am back playing with this again...

Working on node.js app that will allow raspberry pi to serve web access to allow users to use their phone to see to lap info, stats, etc.

It works ok now, When I finish the websock part to make the page update without a refreshing the page yourself I will show it.

I have not done much with the pic programing stuff I was trying out though.

mv4wd

Either you have a under sped USB port (5 V ± 5%) , try a new USB cable or check the analog part of the circuit. Try alsodetaching the cypress board and measure voltage just like that (maybe with just the crystal connected if possible)

Blazinbeaver

that was using a 6v battery and a voltage regulator, also didn’t have the board connected. Going to have a play around with it today. Will let you know how i get on.

mv4wd

Good. I've been busy on other projects and still struggling to improve the detection logic. Just some ideas and a raw prototype, but nothing usable right now.Anyway serial interface will be the same

Blazinbeaver

so found 1 issue, i had a mistake on the wiring of Q2, all voltages are correct now when connected with the cy8kit. bad news is i still cant detect any of the transponders i have made, could i have damaged the 2n3906? whats the best thing to look at without access to a scope?

Snowblind

Are you connected directly to the cy8kit serial with terminal program. Try the MONITOR mode.

Are you sure the transponder is programed right and starting up. you have the led connected? is it blinking?

Blazinbeaver

yes the transponders are starting up and the led’s are flashing.

I’ve run putty on the com port, using the settings on the wiki, but just get a blank screen, unless I’m. Doing something wrong. Also should I be able to see data on putty without the active transponders


thanks pete

mv4wd

Does the blue led on the cpu board blink? It should turn on when you move a transponder near the loop

Blazinbeaver

no it doesn’t appear to, I would upload some pics but I don’t have enough posts yet