Audio (voice) - Stock 9X PCB

[LTMNO]

Hi Oliver, I have finally completed your board (See Attached). I have for some reason forgot to order one piece....

C18 4n7 C1206 resistor (2.065 0.875) R270

Not sure how that happened, but when I look online at Digi-Key it says (See Attached). Is this the right component for this Line Item?

I was wondering if you or anyone else could assist?

Thanks.

[Kilrah]

Not sure how that happened, but when I look online at Digi-Key it says (See Attached).

It simply says it's out of stock. You probably ordered it without noticing, and it will arrive to you one day...

You should be able to find another similar component from another manufacturer.

[pcipri76]

Can you tell me where I find the file to be loaded on board ATMEGA 328 Oliver? And if possible how to do this and with which program? EEPE? or another?

[Oliver]

Oliver would like to know if I drew well: So MicroSD card connects to the ISP interface? If not correct, you could please put files in eagle and wiring diagram MicroSD card?

pcipri76, your wiring looking right, but text names near pads on micro-sd side are with mistakes: MISO is not MISO but GND and etc.

[Oliver]

About firmware for bootloader and main program:
+ I added some files into repository. Now it contains:
Bootloader
Main firmware
Fuses
Instructions from MikeB
.bat files for using with avrdude

[HC1969]

If I do not want to use the bootloader, you can directly flash to the main firmware, this will work?

[Oliver]

If I do not want to use the bootloader, you can directly flash to the main firmware, this will work?

Yes, you only lose the ability to update firmware with serial later, only with ISP.
UPD: and, of course, you need to set another BOOTRST fuse.

[HC1969]

If I do not want to use the bootloader, you can directly flash to the main firmware, this will work?

Yes, you only lose the ability to update firmware with serial later, only with ISP.
UPD: and, of course, you need to set another BOOTRST fuse.

Thanks!
What do you use to burn the ATMega328 (USBASP with command line AVRDUDE)?
If yes, please write command line for main FW burn and command line Fuses burn!

[LTMNO]

Not sure how that happened, but when I look online at Digi-Key it says (See Attached).

It simply says it's out of stock. You probably ordered it without noticing, and it will arrive to you one day...

You should be able to find another similar component from another manufacturer.

Hi Kilrah, thx for the reply. I was able to source another through hole component locally. I was confused by the fact that Digi-Key only had Polarized Caps of that value. Thanks again.

[MikeB]

Looks like on my circuit and board I have pins 1 and 5 of the programming header swapped. I didn't notice this I used the '328 I had already programmed in the stripboard so didn't need to use the header!

Mike.

[Oliver]

Update: with further investigation...

is this correct?

4700pF = 4.7nF or 4n7nF = 0.0047uF

Exactly!

[LTMNO]

Update: with further investigation...

is this correct?

4700pF = 4.7nF or 4n7nF = 0.0047uF

Exactly!

Thanks Oliver, I am starting to get the hang of this stuff. You guys are just genius...
I am trying to figure out the way to program this board.
I have this cable -


and this adapter -


And I have the SmartieParts Board in my radio that has the built in USBasp device. It would be cool to be able to wire that to the Sound Module with a switch that allows you to program the Sound Module or the T9x Board.

Anyway,

I think I remember Mike saying that I can't use the Serial Adapter and that I had to use USBasp. I was trying to find the msg in the thread but couldn't.

What shall I do? So close to hearing my baby speak...

[LTMNO]

no takers?
do i have to get a USBasp?
can i leverage the SmartieParts Board?

Bueller, Bueller...

[jhsa]

My opinion is keep it simple.. flash the bootloader with a USBasp or other programmer, and then use the serial cable to flash the fw to the atmega128.. why do you want to wire a switch? you only need the USBasp once for the bootloader...

The serial cable you show in the picture should work if you have an old computer.. new computers don't seem to have that port/connector anymore.. if you have the serial cable you will not need the little level converter (frsky upgrade lite) as the sound module talks RS232..

Just keep it simple..

[MikeB]

I don't have a smartieparts board, but from pictures I have seen it might have places for a 10-pin programming header. So you might be able to remove the SP board from the Tx, add the header, use it to program the bootloader into the sound board, then put everything back.

Then proceed as Jhsa says.

Mike.

[LTMNO]

Gents thanks for posting... I am probably mistaken but I thought Mike said at one point I could not use the RS232 with Olivers Board. Glad to be wrong about that. I have an old computer with Serial Port so that is good to go. I don't have a USBasp other than what is on the SmartieParts Board.

More importantly, what connects to what on the Sound Board to the Serial Cable? Is there a step by step guide I can follow? If I can use the Serial Cable, then that is the route I will go. If I can't becuase I chose to build out Oliver's Board then I will remove the SmartieParts Board and try that route.

If you can help out by pointing me in the right direction on the wiring, that would be a great help. I will be sure to pay it forward to the next newbie.

Thanks in advance...

[hageha]

The unused charging socket I have replaced with a 3.5 mm stereo jack.

[tigar]

I have made 3 boards for the Oliver's design.
Waiting for the parts to star building...
I got a little confused about the programming. Usbasp would be enough to flash the board or not?
Thanks

[jhsa]

It looks like the sp board has the connections for 2 ISP headers.. And if I'm not mistaken the little dot indicates pin 1..
Here is a link for the 10 pin ISP connector pinout

http://www.batsocks.co.uk/readme/isp_headers.htm

[jhsa]

Oh, guys wait a second.. I think Oliver's board doesn't use RS232 as a serial connection.. It uses TTL.. You must use for example an FTDI programmer and not the RS232 cable..

In that case Pino, you would need your RS232 cable and the frsky upgrade lite level converter.. disregard my other post above. I didn't remember that Oliver's board is not RS232..
This is getting a bit confusing

[LTMNO]

Oh, guys wait a second.. I think Oliver's board doesn't use RS232 as a serial connection.. It uses TTL.. You must use for example an FTDI programmer and not the RS232 cable..

In that case Pino, you would need your RS232 cable and the frsky upgrade lite level converter.. disregard my other post above. I didn't remember that Oliver's board is not RS232..
This is getting a bit confusing

Hence my hesitation and understanding... I remember Mike describing this to me in a previous post and for the life of me, I cant find it in the 86 pages of posts.

Thanks for confirming Joao.

[jhsa]

the little frsky upgrade lite plugs directly to the RS232 cable.. they were designed to work together, so, no adapters for them..

[MikeB]

Yes, very confusing!
I do have an error on my board, pins 1 and 5 of the programming header are swapped! I've highlighted this on my post of the circuit. I have now cut some tracks and added a couple of wires. The board now works using the 10-pin header for programming,m so I think it is all functionally tested, just the mechanics to check.

Mike.

[jhsa]

Hmm, does that mean that we are closer to have models on the SD Card??

I'm just joking Mike, thanks for your time..

João

[LTMNO]

the little frsky upgrade lite plugs directly to the RS232 cable.. they were designed to work together, so, no adapters for them..

Okay, so here is the pin out on the FrySky Lite Adapter.
Where do I connect the VCC to on the Sound Module? RxD,TxD & GND are clearly marked.

Thanks.

[jhsa]

actually, I don't trust the pinouts on this photo.. will check..
The big pins connect directly to the serial cable as stated on the picture..

EDIT: As I suspected on that picture the TX and RX are swapped.. well done frsky

From left to right it should be:
VCC, TX, RX, GND

[jhsa]

So: If I'm not mistaken (please someone confirm this)
based on the photo above:
Pin1 Connect to VCC 5V
Pin2 Connect to JP13 on the board (Board's RXD)
Pin3 Connect to JP16 on the board (Board's TXD)
Pin4 Connects to GND
IMPORTANT: These are the small pins of the level converter.. The VCC must be connected to 5V to power the converter

I hope this helps.. Oliver can you please have a look too?
Thanks

[tigar]

Just to make clear. For what we need the serial for? To load the program on the atmel? Can't this be done with USB asp? Or the serial is for easier upgrades or something else ?

[jhsa]

well, it is like this, the serial connection is necessary if you want to be able to access the SD Card from your computer. (Coming soon ) and it can be used to upgrade the atmega as well..
If you don't want this you can just program the mega with a normal usbasp programmer but you will have to set the correct fuses.
Using the serial makes it easier (speaking for myself) as the sd card is now inside the radio and I don't want to open it to access the card. Don't even have to think about cutting slots in the tx case for the card..

João

[tigar]

Thanks. That made it perfectly clear. I am probably going for the serial then.