Re: Undefined reference to. . . When compiling

I think there's a conflict. In the SDT.h header file around line 50 is the note:

// ============ AFP 09-04-23 #include modified Si5351 library
// == Modified Si library must be included in folder with T41 code
#include "si5351.h"

Try copying the Si5351Arduino-master library that's in the Teensy library to some temporary folder and then remove it from the library. That is, you end up erasing Si5351Arduino-master. There should be an si5351.cpp and si5351.h file in the project directory. That's why it is surrounded with double quotes.

Jack, W8TEE

On Thursday, May 8, 2025 at 10:19:39 PM EDT, Duane B via groups.io <dbrantley@...> wrote:

Hi Jack.? Thanks for the reply.

?

Even though I have:

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I'm still getting:

?

I forgot just how challenging it can be getting everything in the right places. . .

?

Duane - K5CA

--
Jack, W8TEE

Re: Undefined reference to. . . When compiling

#33796

Hi Jack.? Thanks for the reply.

?

Even though I have:

?

I'm still getting:

?

I forgot just how challenging it can be getting everything in the right places. . .

?

Duane - K5CA

Re: Undefined reference to. . . When compiling

#33795

Duane:

Those are function calls that the linker cannot find. This is usually caused by forgetting to #include some specific library. Look in the SDT.h header file, near the top, to see a list of the #includes. The last 5 errors seem to be the Si5351 library. The linker should find the Teensy libraries on path:

Some of the libraries are also found in the Arduino package. Look under packages in the path above to see the Arduino libraries.

Jack, W8TEE

On Thursday, May 8, 2025 at 07:34:14 PM EDT, Duane B via groups.io <dbrantley@...> wrote:

Hi everyone.? Its been a LONG time since I've done any compiling, so I don't know how to go about understanding the meaning of :

?

undefined reference to. . .

?

Would someone be so kind to enlighten me?

?

Thanks,

Duane - K5CA

--
Jack, W8TEE

Undefined reference to. . . When compiling

#33794

Hi everyone.? Its been a LONG time since I've done any compiling, so I don't know how to go about understanding the meaning of :

?

undefined reference to. . .

?

Would someone be so kind to enlighten me?

?

Thanks,

Duane - K5CA

Re: Codec & ADC's

#33791

So in the Teensy library you can do connect/disconnect.? But to do that, you have to use the name of the connection.? That's painful if you rearrange things and are forced to rename the connections.

Open Audio is reliant on begin() and end() functions.? I find that easier to deal with.? However, due to some possible issues, I'm having to use switches on the input of some device types.

I'm switching to an unused port when a particular object needs to become inactive.? This is a work in progress and I'm still not sure what is happening.

?

--

73 Greg KF5N

Re: Codec & ADC's

#33790

As long as you stay within the OpenAudio library.? However, that library has some limitations.? For example, the AudioConnection_F32 class doesn't have a disconnect method and the connect method is protected.? I don't think that works with your version (mine either at this point).

?

I also see that the 2-channel objects are doing 16-bit transfers as well.? I recompiled the library with 32-bit transfers defined but got distorted output.? Perhaps I'm doing something wrong, or maybe this isn't operational yet.? I'm scratching my head now, since my goal here was to get 24-bits from/to the ADC/DAC.? I was hoping that if 32-bit transfers worked for two channels, going to four channels would be straightforward.

Re: Codec & ADC's

#33789

Hi Terrance, so at this point at least the I16 to F32 converters would not be required?

If so, that would be a nice simplification that would be? worth it even without the I32 IO.

?

--

73 Greg KF5N

Re: Codec & ADC's

#33788

On Sat, May 3, 2025 at 08:24 PM, Bob Larkin wrote:

Terrance, I believe you are correct, it is straightforward.

Porting the I16 quad I2S objects over to the OpenAudio library wasn't too hard if you ignore the configuration change needed for I32 input and output.? Here is the output from a PassThroughQuad_F32 sketch using two new objects, AudioInputI2SQuad_F32 and AudioOutputI2SQuad_F32, with input into channels 1-4 at 1kHz, 2kHz, 3kHz and 4kHz respectively.

?

Getting 32-bit integer input and output requires digging into the processor manual to get the DMA configuration correct.? I'm hoping that the I16 version provides all of the hints I need but know from experience that there are often little gotchas when making these low-level changes.

?

Boards and Kits to the UK/EU

#33787

开云体育

I shipped the UK/EU T41 V12 /K9HZ /K9HZ+KI3P boards and kits order to Andy Rutter today for sales and distribution in that region.?? Thanks Andy!? And I really appreciate everyone’s patients with me in solving the shipping issues in crazy times.? The tracking says the package should arrive in 4 days.? Please take it easy on Andy over there as I know what it’s like when boards and kits are announced for sale…? The emails never stop!

?

Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Re: BPF and Teensy Problem

#33786

开云体育

Yeah I did that too… was because my eyes are not that good anymore…

?

Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Tom Schulte via groups.io
Sent: Tuesday, May 6, 2025 4:22 PM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] BPF and Teensy Problem

?

Well I got my problem fixed. Watch the cable connections on the IDC . What I thought was pin 1 was not, check the boards. Made correct cable and it works.

?

Tom AB9EK

Re: BPF and Teensy Problem

#33785

开云体育

Looks good…

?

Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Tim via groups.io
Sent: Tuesday, May 6, 2025 1:24 PM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] BPF and Teensy Problem

?

[Edited Message Follows]

also try

quality stuff, nice OM also?

Tim W4YN

?

He also has some cool Teensy STUFF!?

Re: BPF and Teensy Problem

#33784

Well I got my problem fixed. Watch the cable connections on the IDC . What I thought was pin 1 was not, check the boards. Made correct cable and it works.

?

Tom AB9EK

Re: BPF and Teensy Problem

#33783

Well they arrived, but are shy of the specified pin dimensions. Instead of 0.40mm they are 0.34 mm. At least they are the full row, so I don't need to patch two together.

John K1JO

Re: BPF and Teensy Problem

#33782

I see he sells header pins with different colors. I find these really handy for identifying test points on a board (e.g., red for voltage TPs, yellow for general purpose TP's, etc.)

Jack, W8TEE

On Tuesday, May 6, 2025 at 02:23:43 PM EDT, Tim via groups.io <w4yn@...> wrote:

[Edited Message Follows]

also try

quality stuff, nice OM also?

Tim W4YN

?

He also has some cool Teensy STUFF!?

--
Jack, W8TEE

Re: BPF and Teensy Problem

#33781

This is the stacking header that is arriving today, for the Teensy to Audio Hat adapter. I hope it is better than what I got from Tayda Electronics.

Re: BPF and Teensy Problem

#33780
Edited

also try

quality stuff, nice OM also?

Tim W4YN

?

He also has some cool Teensy STUFF!?

Re: BPF and Teensy Problem

#33779

开云体育

That’s not bad… about $0.14 per stick.

?

Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Dan Quigg via groups.io
Sent: Tuesday, May 6, 2025 11:58 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] BPF and Teensy Problem

?

It took me 3 tries to get these.

?

There's probably a better price for a bigger quantity, too.

?

Good luck

73

Re: BPF and Teensy Problem

#33778

It took me 3 tries to get these.

?

There's probably a better price for a bigger quantity, too.

?

Good luck

73

Re: BPF and Teensy Problem

#33777

开云体育

Hi Tom, sorry for the troubles.? Several people have reported trouble with the Chinese pins not making contact because the quality control is poor.? That is a great place to start.? Also check the cables closely to make sure they are built correctly.? Even I made a couple of mistakes while building the cables getting them inverted or off by one pin at times (the privilege of getting old).? ?

?

When I return from Hamvention, I’ll see if I can find a cheap source for prime pins… and carry them too.

?

Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Tom Schulte via groups.io
Sent: Tuesday, May 6, 2025 6:56 AM
To: [email protected]
Subject: [SoftwareControlledHamRadio] BPF and Teensy Problem

?

? ?I put together the BPF board, only three bands, powered up and had no connection between the teensy and computer. Disconnected the board and had connection with computer. Replaced teensy, now on fifth one, put back together and had connection. Teensy can not find the BPF board.?
I checked and rechecked the solder connections still nothing.?

?

? ? Where or what should be looking for?

?

Tom AB9EK

Re: BPF and Teensy Problem

#33776

Ah, that's good to know. That may have been the issue I was having of the Teensy not seeing WIRE on the Audio Hat. My stacked header pins were made with that thin metal.
I have some new ones on order.?

John K1JO