BCD325P2/BCD996P2: RH96 on a BCD996P2? Yep!

[joesheets]

OK. I just checked the first board that I I used and could not program. I took all of the leads off of it to place them on a new board.
When I tried to upload the 996 to it. it worked with no issue. So it has to be the wiring.
Here is the USB board wiring form the instructions I have...
Clearly differnt than what you have

 

[milcom_chaser]

Just for clarity, the photo on the left is from the instructions, the one on the right is a zoom in of what you posted. Should be pads 2,3,5

 

[joesheets]

OK. The instructions I have show 1,3,4

 

[joesheets]

I see now. the pics and the schematics are different. I will relocate the wires to 2,3,5

 

[joesheets]

wires relocated but still no communication with the board...
It has to be something else with the wiring

 

[milcom_chaser]

Assuming the pads from left to right are 1,2,3,4,5. I don't have a pin-out drawing of that board...

 

[joesheets]

Actually from L-R is
5, 4, 3, 2, 1

 

[milcom_chaser]

Actually from L-R is
5, 4, 3, 2, 1

Well that makes the instructions photo incorrect...

 

[joesheets]

actually the pics and schematic is correct. Look at this pic where I laid the removed connector from the board as per the instructions.
# 5 in this case would be on the R (looking from the backside instead of head on). So from R to L from above, it would be 5, 4, 3, 2, 1

 

[milcom_chaser]

actually the pics and schematic is correct. Look at this pic where I laid the removed connector from the board as per the instructions.
# 5 in this case would be on the R (looking from the backside instead of head on). So from R to L from above, it would be 5, 4, 3, 2, 1

View attachment 72509

Good catch with the connector orientation. So, is it working now?

 

[joesheets]

No! Still wont program. I am thinking about removing all wires from Nano board , program it, then solder the wires back.

 

[milcom_chaser]

Look at the upper left of this photo. Looks like a solder bridge? That may pull the TTL voltage of that data pin to 0vdc...

 

[joesheets]

Ok. I try to fix and see if that works.

 

[joesheets]

A bit of progress...maybe.. I programmed a new board successfully and then mounted the wires to it. I hooked it up to my 996 and the RH96 still says "Scanner Unconnected". On the board, the PWR light is on and the RX light is flickering. It goes off when I turn the scanner off so I assume that the Nano is receiving the scanner signal, it just isn't relaying it to the RH96. Any ideas as to why this would happen?

 

[joesheets]

Could I have wired the audio jack backwards? I could not determine which terminal was Transmit and which one was Receive. Would that make a difference? They were labeled 2 & 3, not T & R.

 

[milcom_chaser]

Try reversing the wires to solder pads 2 and 3 on RS-232 board. So, swapping TX and RX data. Or swap them at the audio jack connector if that's easier.

 

[AKJohnny]

A bit of progress...maybe.. I programmed a new board successfully and then mounted the wires to it. I hooked it up to my 996 and the RH96 still says "Scanner Unconnected". On the board, the PWR light is on and the RX light is flickering. It goes off when I turn the scanner off so I assume that the Nano is receiving the scanner signal, it just isn't relaying it to the RH96. Any ideas as to why this would happen?

On the BCD996P2 make sure you set the GPS Baud Rate to 9600 in the Menu>Settings>Set GPS Baudrate menu item.

 

[joesheets]

Thanks for the ideas...
Baud rate change did not work.
I will try reversing wires later and see if that works.

 

[joesheets]

Wholly S! I got it to work! I just by chance, pressed the reset button on the board and BOOM! It's working!

 

[milcom_chaser]

Ha! Very cool. So you didn't need to reverse the TX, RX wires?