[time-nuts] Re: TimeHat

Robert DiRosario ka3zyx at comcast.net
Tue Jul 6 02:41:24 UTC 2021


I'll post this so people know what the problem was.  I forgot the older 
Raspberry Pi's are 32 bit.  I looked in my junk box and found a pair of 
"Raspberry Pi Model B+", old 32 bit systems.  It works fine with the 64 
bit code on a 64 bit Raspberry Pi 3B.

Robert


On 07/05/2021 07:01 PM, John Miller via time-nuts wrote:
> Curious…. feel free to reach out to me directly and I can send you the TimeHat image and you can re-flash it. For what it’s worth, the cards I all sent out initially were 64bit, so the would only work on the Pi2 and newer. If you want to run it on a first gen Pi or a Zero-W, you need the 32 bit image, and I have that as well.
>
> Regards,
> John
>
>> On Jul 5, 2021, at 4:16 PM, Robert DiRosario <ka3zyx at comcast.net> wrote:
>>
>> After more checking I do get video out, but it's blank. The keyboard and mouse don't work.  The Ethernet link is never activated.  If I stick a memory card with a valid OS in the system comes up just fine and everything works, video, keyboard and mouse and Ethernet.  So it's not a hardware problem with the Raspberry Pi or the TimeHat.
>>
>> If I put a blank memory card in then I get no video output.  At first it looks the same as what the TimeHat memory card is doing, but if I go into the menu on the monitor there is a difference.
>>
>> Robert
>>
>>
>> On 07/05/2021 07:04 AM, John Miller via time-nuts wrote:
>>> Robert,
>>> If an HDMI display is connected when the board is booted, video should be displayed. If no display is connected when the system is booted, the HDMI port is not activated, and you cannot attach a monitor to it after the fact.
>>>
>>> If this is something you and others would like to do, I can work out a method to reconfigure it such that video is output all the time. Just keep in mind this will take consume some system resources and add some CPU overhead.
>>>
>>> Regards,
>>> John
>>>
>>>> On Jul 5, 2021, at 12:23 AM, Robert DiRosario <ka3zyx at comcast.net> wrote:
>>>>
>>>> On the Raspberry Pi TimeHat is there output to the HDMI connector, or is it configured to just use a serial console?
>>>> I'm using the preconfigured SDHC card, so the software should be fine.  If I swap out the SDHC card with a different one the systems boots fine, so the hardware works.
>>>>
>>>> With the card with the software there is never any output to the HDMI connector.
>>>>
>>>> Based on the LED on the GPS module it's locking up on the GPS signals just fine.  After the initial lockup, it locks up again in only a few seconds after a power cycle.
>>>>
>>>> Robert
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