Re: [beagleboard] PB LCD

2019-07-05 Thread Venkatesh Vadde 
Hello Dave,

I echo the same interest. We wish to work with a pocket beagle also. An LCD
screen would be nice to get visual feedback. Who is the maker/ vendor and
what is the part number of the board?

Regards.

On Sat, Jul 6, 2019, 5:53 AM  wrote:

> Hi Dave,
>
> Did you succeed to make the LCD work on your board?
>
> Can you send me details of your board? Where did you buy it? I also would
> like to have a pocketbeagle board, with LCD.
>
> I bought a pocketbeagle and I'm waiting it to arrive, but I found that the
> LCD pins are not connected to the expansion headers after buying it. Since
> they are the same pins connected to the boot configuration, we have them
> exposed on the board connected to the resistors close to the main chip and
> I hope I can hook some wires to connect an LCD, but I don't know if there
> something else that I have to do, like in the software side (apart of the
> BBB driver) to say to the board that I want video output to the LCD pins.
>
> Best
>
> Em segunda-feira, 11 de fevereiro de 2019 07:32:16 UTC+1, Dave escreveu:
>>
>> The board is PocketBeagle derived - it is not a PocketBeagle.
>> It just starts with the PcoketBeagle design rather than the BBB.
>>
>> It removes lots of things that are not used - such as P1 and P2,
>> And adds a bunch of things that are needed - such as the LCD.
>>
>> Some of what is added is added similar or even identical to how it is in
>> the BBB rather than the PB.
>>
>> One of the software headaches I have with this project is that the
>> software development and prototypes were all BBB's and BBBW's.
>>
>>
>> But the first spin production boards are PB design derivatives - but with
>> things like the rough equivalent of a BBB 4.3 LCD display CAPE added.
>>
>> To get the board to boot - I am using the PB base device Tree. It will
>> not boot using a BBB deviceTree.
>>
>> But it appears I need to go further and strip out of the PB device tree
>> stuff like P1 and P2 that I do not have.
>>
>>
>>
>>
>>
>>
>> --
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Re: [beagleboard] PB LCD

2019-07-05 Thread joaoman 
Hi Dave,

Did you succeed to make the LCD work on your board?

Can you send me details of your board? Where did you buy it? I also would 
like to have a pocketbeagle board, with LCD.

I bought a pocketbeagle and I'm waiting it to arrive, but I found that the 
LCD pins are not connected to the expansion headers after buying it. Since 
they are the same pins connected to the boot configuration, we have them 
exposed on the board connected to the resistors close to the main chip and 
I hope I can hook some wires to connect an LCD, but I don't know if there 
something else that I have to do, like in the software side (apart of the 
BBB driver) to say to the board that I want video output to the LCD pins.

Best

Em segunda-feira, 11 de fevereiro de 2019 07:32:16 UTC+1, Dave escreveu:
>
> The board is PocketBeagle derived - it is not a PocketBeagle. 
> It just starts with the PcoketBeagle design rather than the BBB. 
>
> It removes lots of things that are not used - such as P1 and P2, 
> And adds a bunch of things that are needed - such as the LCD. 
>
> Some of what is added is added similar or even identical to how it is in 
> the BBB rather than the PB. 
>
> One of the software headaches I have with this project is that the 
> software development and prototypes were all BBB's and BBBW's. 
>
>
> But the first spin production boards are PB design derivatives - but with 
> things like the rough equivalent of a BBB 4.3 LCD display CAPE added. 
>
> To get the board to boot - I am using the PB base device Tree. It will not 
> boot using a BBB deviceTree. 
>
> But it appears I need to go further and strip out of the PB device tree 
> stuff like P1 and P2 that I do not have. 
>
>
>
>
>
>
>

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Re: [beagleboard] PB LCD

2019-02-10 Thread Dave 
The board is PocketBeagle derived - it is not a PocketBeagle. 
It just starts with the PcoketBeagle design rather than the BBB. 

It removes lots of things that are not used - such as P1 and P2, 
And adds a bunch of things that are needed - such as the LCD. 

Some of what is added is added similar or even identical to how it is in 
the BBB rather than the PB. 

One of the software headaches I have with this project is that the software 
development and prototypes were all BBB's and BBBW's. 


But the first spin production boards are PB design derivatives - but with 
things like the rough equivalent of a BBB 4.3 LCD display CAPE added. 

To get the board to boot - I am using the PB base device Tree. It will not 
boot using a BBB deviceTree. 

But it appears I need to go further and strip out of the PB device tree 
stuff like P1 and P2 that I do not have. 






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RE: [beagleboard] PB LCD

2019-02-10 Thread Graham Stott 
Dave,

 

I presume by PB you mean Pocketbeagle.

 

Assuming the above and looking at the .dts file, I do not think this will work. 
I could easily be wrong, but the way I read the .dts file, you are trying to 
use the LCD output pins from the am335x (mode 0). On the Pocketbeagle those 
pins do not go to any connector output pins (P1 or p2).  You said a PB derived 
board, so maybe on that board the LCD pins do go to the output pins but I 
cannot tell without seeing a copy of that board’s schematic.

 

Graham

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On 
Behalf Of Dave
Sent: Sunday, February 10, 2019 1:21 AM
To: BeagleBoard 
Subject: [beagleboard] PB LCD

 

I am trying to get an LCD - the same one as the 4.3" CAPE working on a PB 
derived board. 

Everything is hooked up the same. 

I have copied  BB-CAPE-DISP-CT4-00A0.dts

and changed the pins to match PB

It is loading but no display, no backlight. 

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