[nos-bbs] Help w/ serial port on Pi2b - tncpi

jerome schatten romers at shaw.ca
Mon Jun 5 17:33:58 EDT 2017


Cmdline.txt was OK, but inittab had an instance of ttyAMA0 which I got rid of. All working fine now -- many thanks Chris!
Best
Jerome

Sent from my iPhone

> On Jun 5, 2017, at 14:12, Lists <lists at g1fef.co.uk> wrote:
> 
> Actually I made a mistake - /dev/ttyS0 appears on the pi 3 not the pi 2, afaik it’s still /dev/ttyAMA0 on the 2
> 
> Have your tried running minicom on ttyAMA0 to test the connectivity to your TNC?
> 
> Also, you may need to remove access to the serial port by the operating system, e.g. look in /boot/cmdline.txt for entries like console=ttyAMA0,115200 and in /etc/inittab for entries like /sbin/getty -L ttyAMA0
> 
> Chris
> 
> 
>> On 5 Jun 2017, at 21:39, jerome schatten <romers at shaw.ca> wrote:
>> 
>> Nope... but there still is  /dev/ttyAMA0
>> j
>> 
>> Sent from my iPhone
>> 
>>> On Jun 5, 2017, at 13:20, lists at g1fef.co.uk wrote:
>>> 
>>> Is there a /dev/serial0 ?
>>> 
>>> 
>>> 
>>>> On 5 Jun 2017, at 21:04, jerome schatten <romers at shaw.ca> wrote:
>>>> 
>>>> Looking at /dev/ on the Pi2B, there is no ‘ttyS0', but there is a ‘tty0’.
>>>> j.
>>>> 
>>>>> On Jun 5, 2017, at 12:52, lists at g1fef.co.uk wrote:
>>>>> 
>>>>> I believe the new terminal is ttyS0 now rather than ttyAMA0 
>>>>> 
>>>>> Regards
>>>>> Chris - G1FEF
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> Sent from my iPhone
>>>>>> On 5 Jun 2017, at 20:30, jerome schatten <romers at shaw.ca> wrote:
>>>>>> 
>>>>>> Hi all...
>>>>>> 
>>>>>> I moved my pi-tnc from my original Pi (first generation) to a Pi2B and now can’t get the serial port to work.  Running Jessie on the Pi2B.  
>>>>>> 
>>>>>> Worked perfectly on the Pi1 but running 'sudo ./pitnc_getparams’ on the Pi2B ends up retrying forever. 
>>>>>> 
>>>>>> I was using ttyAMA0 on the P1.  
>>>>>> 
>>>>>> Can someone tell me what to changes need to be made to the configs get the tnc going on the Pi2B? 
>>>>>> 
>>>>>> Thanks,
>>>>>> jerome - ve7ass
>>>>>> vancouver
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