Stop working on Mega 2560

[dmx-rdm]

I use dmxserial2 on Arduino Mega platform.
Ttestsketch is RdmSericalRec.ino
Now RDM stopped working (City Theatrical DMXcat is the DMX/RDM master)

• DMX data is received
• RDM devices are not found any more.

When I compile for and upload on a UNO everything is working like expected.

I tried to use UART1 on the Mega, different enable pins, Arduino IDE1.8 and 2.1.1, behavoir is alwas the same.
Does anyone have an idea?

Attached are Logic analyser measurements. RDM Data on Mega looks totally messed up - but why?

I'd really appreciate any help - I even registered a rdm manufacturer ID.

[riwalker]

I have used MEGA in the past with no issues Did you change the #def in the CPP ? // For using the serial port 1 on a Arduino MEGA 2560 board, enable the DMX_USE_PORT1 definition. //#define DMX_USE_PORT1 From: dmx-rdm ***@***.***> Sent: Monday, July 24, 2023 10:07 AM To: mathertel/DmxSerial2 ***@***.***> Cc: Subscribed ***@***.***> Subject: [mathertel/DmxSerial2] Stop working on Mega 2560 (Issue #48) I use dmxserial2 on Arduino Mega platform. Ttestsketch is RdmSericalRec.ino Now RDM stopped working (City Theatrical DMXcat is the DMX/RDM master) * DMX data is received * RDM devices are not found any more. When I compile for and upload on a UNO everything is working like expected. I tried to use UART1 on the Mega, different enable pins, Arduino IDE1.8 and 2.1.1, behavoir is alwas the same. Does anyone have an idea? Attached are Logic analyser measurements. RDM Data on Mega looks totally messed up - but why? I'd really appreciate any help - I even registered a rdm manufacturer ID. <https://user-images.githubusercontent.com/140413195/255614147-9086f136-6427-495b-9e40-4790e8e3b071.JPG> <https://user-images.githubusercontent.com/140413195/255614217-576608ad-7f0f-4703-9e88-2b559f90f942.JPG> <https://user-images.githubusercontent.com/140413195/255614237-cd4ccf59-99d2-4f64-a194-f192726e1d19.JPG> <https://user-images.githubusercontent.com/140413195/255614254-c76b1c4d-ea93-40ff-8929-8f5faba61250.JPG> — Reply to this email directly, view it on GitHub <#48> , or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABIKT5V7XBKLO6ZGAIST2TDXRZ6QFANCNFSM6AAAAAA2VUQQ6A> . You are receiving this because you are subscribed to this thread. <https://github.com/notifications/beacon/ABIKT5RANIAH3YB6ZBTTWC3XRZ6QFA5CNFSM6AAAAAA2VUQQ6CWGG33NNVSW45C7OR4XAZNFJFZXG5LFVJRW63LNMVXHIX3JMTHGYZBOSM.gif> Message ID: ***@***.*** ***@***.***> >

[dmx-rdm]

mega with dmxserial2 was working for me until some days ago!
yes, I have changed the #definition. I also tried the simple way using UART0: Works on uno, not on mega.

The strange thing is: My mega-testboard wich I programmed some month ago is working fine.

I have used MEGA in the past with no issues Did you change the #def in the CPP ? // For using the serial port 1 on a Arduino MEGA 2560 board, enable the DMX_USE_PORT1 definition. //#define DMX_USE_PORT1