Re: BuyDisplay (EastRising) Display ER-TFTM070-5V4 connections

#33813

开云体育

That is…. Check the pins wired on each end to make SURE they match…

?

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 K9HZ
Sent: Saturday, May 10, 2025 8:30 PM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] BuyDisplay (EastRising) Display ER-TFTM070-5V4 connections

?

The correct connector to use for interface is the 40 PIN connector.?? I cut pins 11 and 12 off the connector and then a 10 pin header fits on the first 10 pins of the 40 pins perfectly.? Make sure you wire them properly to match the display connector or you will blow out the RA 8875 Controller chip on the display board.

?

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@...

?

From: [email protected] <[email protected]> On Behalf Of John Owens K1JO via groups.io
Sent: Saturday, May 10, 2025 8:19 PM
To: [email protected]
Subject: [SoftwareControlledHamRadio] BuyDisplay (EastRising) Display ER-TFTM070-5V4 connections

?

[Edited Message Follows]

I've been wrestling with the datasheet for this 7" display. I checked all the jumpers and it is configured as 4-wire serial.
It seems like there is a typo in the datasheet, as they have two J2 connectors, one with 10 pins and the other with 40 pins (labeled Parallel/Serial Interface and CTP (capacitive touch panel) interface.
I want to double check if my assumptions are correct in the following connections to the display:

Use only the first 8 pins of the 40 pin connector
Pin Number (J2 AKA J3 on the device)
1 and 2 VSSGroundGND
3 and 4 VDDPower SupplyVCC
5 /SCS Serial Mode Chip Select (/CS), Low activeC/S
6 SDO 4-wire SPI Data Output (MISO)MISO
7 SDI 4-wire SPI Data Input (MOSI)MOSI
8 SCLK SPI Clock (SCLK)SCLK

I've attached the datasheet.
Thanks for you help.

Re: BuyDisplay (EastRising) Display ER-TFTM070-5V4 connections

#33812

开云体育

The correct connector to use for interface is the 40 PIN connector.?? I cut pins 11 and 12 off the connector and then a 10 pin header fits on the first 10 pins of the 40 pins perfectly.? Make sure you wire them properly to match the display connector or you will blow out the RA 8875 Controller chip on the display board.

?

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 John Owens K1JO via groups.io
Sent: Saturday, May 10, 2025 8:19 PM
To: [email protected]
Subject: [SoftwareControlledHamRadio] BuyDisplay (EastRising) Display ER-TFTM070-5V4 connections

?

[Edited Message Follows]

I've been wrestling with the datasheet for this 7" display. I checked all the jumpers and it is configured as 4-wire serial.
It seems like there is a typo in the datasheet, as they have two J2 connectors, one with 10 pins and the other with 40 pins (labeled Parallel/Serial Interface and CTP (capacitive touch panel) interface.
I want to double check if my assumptions are correct in the following connections to the display:

Use only the first 8 pins of the 40 pin connector
Pin Number (J2 AKA J3 on the device)
1 and 2 VSSGroundGND
3 and 4 VDDPower SupplyVCC
5 /SCS Serial Mode Chip Select (/CS), Low activeC/S
6 SDO 4-wire SPI Data Output (MISO)MISO
7 SDI 4-wire SPI Data Input (MOSI)MOSI
8 SCLK SPI Clock (SCLK)SCLK

I've attached the datasheet.
Thanks for you help.

Re: BuyDisplay (EastRising) Display ER-TFTM070-5V4 connections

#33811

BuyDisplay (EastRising) Display ER-TFTM070-5V4 connections

#33810
Edited

I've been wrestling with the datasheet for this 7" display. I checked all the jumpers and it is configured as 4-wire serial.
It seems like there is a typo in the datasheet, as they have two J2 connectors, one with 10 pins and the other with 40 pins (labeled Parallel/Serial Interface and CTP (capacitive touch panel) interface.
I want to double check if my assumptions are correct in the following connections to the display:

Use only the first 8 pins of the 40 pin connector
Pin Number (J2 AKA J3 on the device)
1 and 2 VSSGroundGND
3 and 4 VDDPower SupplyVCC
5 /SCS Serial Mode Chip Select (/CS), Low activeC/S
6 SDO 4-wire SPI Data Output (MISO)MISO
7 SDI 4-wire SPI Data Input (MOSI)MOSI
8 SCLK SPI Clock (SCLK)SCLK

I've attached the datasheet.
Thanks for you help.

ER-TFTM070-5V4_Datasheet.pdf

Re: Initial Test of Main V12.6 board

#33809

开云体育

Ah yes, the old switcher-roo…everyone does that.? At least you didn’t plug the teensy backwards like I did on one of my 4 T41’s…

?

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 John Owens K1JO via groups.io
Sent: Saturday, May 10, 2025 11:31 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] Initial Test of Main V12.6 board

?

Embarrassed grin... I soldered the Audio Adapter board on reversed.
Good news, so far, is that it now recognizes WIRE at 0x0A on both boards. Hopefully, I didn't fry anything.

John K1JO?

Re: Initial Test of Main V12.6 board

#33808

Embarrassed grin... I soldered the Audio Adapter board on reversed.
Good news, so far, is that it now recognizes WIRE at 0x0A on both boards. Hopefully, I didn't fry anything.

John K1JO?

Re: Codec & ADC's

#33807

Interesting.? The Tympan library is still converting from/to I16.? Its quad object looks similar to mine.

Re: Codec & ADC's

#33806

I think the 2-channel works up to 32-bits without that "#define I2S_BUFFER_TO_USE_BYTES(...) ".??? That define? may be old code that got left behind, I'm not sure.?? Looking at the begin() for the I2S in it seems to address getting 32 bits per sample. I confess to not looking up the? hardware settings. ?? But, when I put in the PCM1808 to the unmodified code, it gives 24-bit data (see the histogram in my Codec study).? So, far, I'm just looking at the 2-channel.?

Re: Codec & ADC's

#33805

I tried the 2-channel Open Audio I2S objects as 32-bit but the output was distorted.? I might be missing something, but it appears to need more than just changing a define.? I found the Tympan library yesterday, but those are similar to the Open Audio library, set to 16-bit data.? I didn't notice anything different about the quad-channel object to indicate any other work had been done, so I don't think they'll be of help here.

Re: Codec & ADC's

#33804

Hi Greg and Terrance -? I'm catching up on this.? And, not looking at the begin() end() issue, but just at the Quad I/O in F32.? I'm reading as I get time today, but here are a couple of thoughts.

?

* I believe the 2-channel handles any number of I2S bits up to 32.

?

*I just looked at

?and he has 2, 4, 6, and 8 channel F32 I2S.? Knowing Chip, these are probably clean, and we may be able to save time and testing by just moving these over.?? Chip is the owner and creator of the OpenAudio_ArduinoLibrary.? The Tympan is the same thing with an emphasis on Hearing Aid technology.

?

More later, but I wanted to get this note out.? Bob? W7PUA

Re: Codec & ADC's

#33803

As we know the documentation is a bit sparse.? You can get some of the designer's intent from looking at the examples.? I guess I need to go back and look at more of them.

Beyond that and simply trying things out, it's a mystery.

?

--

73 Greg KF5N

Re: Codec & ADC's

#33802

I couldn't find the source, but I thought I read that the intent of the begin and end functions was to provide a quick, efficient way to start/stop the data flow.? The processing of the data, however, continued in the background.? The disconnect function had to be used to stop the processing.? Also, not many objects have a begin method and some that do, don't have an end method.

?

I want to examine how the intermediate objects in a long string of object behave when the lead object is stopped or disconnected.? My guess is that many continue doing something in either case.? Looking at this is on my to do list, but I've whittled down my audio configuration to such a minimum that it isn't an issue right now.

Re: Codec & ADC's

#33801

It would seem that the interface should be consistent, where applicable, to all of the objects.? So that means any sort of complex data consuming function should have a begin() and end() function.

An alternative would be that any data producing object should have begin() and end() functions, with the assumption that any consumer of data automatically goes into an idle state if the data stream ceases.

That could be how it was intended to be, but I have written code that breaks it.? The investigation continues.

?

--

73 Greg KF5N

Re: Codec & ADC's

#33800

Some OpenAudio library objects, AudioConvertxx for example, can't be disabled.? They continue to process as long they receive data.? It wouldn't be difficult to derive a class that could be enabled/disabled, thus replacing the need for a switch.

Re: Codec & ADC's

#33799

Hi Mark-

?

I use a combination of switches and mixers because some things have to be both disabled and bypassed.? For example, the receiver equalizer can be active, or inactive and bypassed.

So I do something similar with the gains and port selections.? Where I am doing something special is switches which have only a single output connected.? This appears to be necessary

in the case of some supposedly inactive devices continuing to use CPU resources.? It's not trivial as it has an impact on the quality of the receiver.? This is a work in progress and

T41EEE will continue to be updated as the code continues to evolve.

?

--

73 Greg KF5N

Re: Codec & ADC's

#33798

Greg:

I haven't been following closely along, but I thought it might be helpful to pass along the method that I have successfully employed in my TeensyMIDIPolySynth project (a MIDI-driven 3-voice, 12-poly digital audio synthesizer with modulators, filters, envelopes, reverb, glide, etc.):? for effects that can be enabled/disabled (e.g. filters, reverb, etc.), I run the shared signal which goes to the input to the effect (the feed) into input 0 of a mixer, and the output signal from the effect (the result) into input 1 of the same mixer.? If/when the effect is enabled, input 0 of the mixer is set to a level of 0.0 & input 1 of the mixer is set to 1.0.? Similarly, if/when the effect is disabled, input 0 of the mixer is set to a level of 1.0 & input 1 of the mixer is set to 0.0.? This may be what you are describing, but I can't tell for sure that you're using mixers (for your "switch").

Hope this helps . . .

Mark J Culross
KD5RXT

On Thursday, May 8, 2025 at 03:40:11 PM CDT, Greg KF5N via groups.io <greg.electricity@...> wrote:

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: Undefined reference to. . . When compiling

#33797

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:

?

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