PGA450-Q1: PGA450 - LIN firmware ver 2.9 problems

Krzysztof Pranga

Part Number: PGA450-Q1
Other Parts Discussed in Thread: TIDA-00151

Dear Support,

I have two questions regarding using PGA450 with LIN firmware:

1. Its not obvious for me what is the difference between pre compiled firmware OTP LIN version in output folder (PGA450-Q1_TIDA-00151_OTP-LIN.hex) and version compiled with defining linEnabled and deactivating uartEnabled in PGA450-Q1_TIDA-00151_OTP project. Precompiled project is working ok. When we use our compilation of fresh project we dont get response from device. What is the difference and what could be the problem? We are using Keil uVision 5.2 and Toolchain: K51 Prof. Develpers Kit Version: 9.60.0.0

2. Is there need to change anything other than switch cases in linPID_ISR and linSciRxData_ISR to provide addressing of device?

Thanks in advance for response.

over 3 years ago

0 Mekre Mesganaw over 3 years ago

TI__Expert 6855 points

Hi Krzysztof,

Is this for the EVM-S board or another board?

Regards,

Mekre

0 Krzysztof Pranga over 3 years ago in reply to Mekre Mesganaw

Prodigy 80 points

Dear Mekre,

I made a custom board with PGA450. With precompiled firmware everything works ok (communication and measurements).
Edit: I mean on configuration: pristine PGA450 + precompiled firmware (PGA450-Q1_TIDA-00151_OTP - LIN.hex) its ok. On pristine PGA450 + PGA450-Q1_TIDA-00151_OTP.hex (linEnabled) its not working.

0 Mekre Mesganaw over 3 years ago in reply to Krzysztof Pranga

TI__Expert 6855 points

Hi Krzysztof,

I will need to check internally on this. I should get back to you with my next update on Thursday or Friday.

Regards,

Mekre

0 Mekre Mesganaw over 3 years ago in reply to Mekre Mesganaw

TI__Expert 6855 points

Hi Krzysztof,

The pre-compiled and source code versions should be the same. Please note that once the OTP memory is programmed the first time, it cannot be modified/reprogrammed, so it is recommended to start your development/evaluation with the DEVRAM version. The following document should also have more guidance on working with the software: PGA450-Q1 Software Development Guide.

Regards,

Mekre

0 Krzysztof Pranga over 3 years ago in reply to Mekre Mesganaw

Prodigy 80 points

Please be adviced that I have read all of the documents related to PGA450. I know how to program OTP, Devram and eeprom via SPI with my custom made programmer.

Reagarding 1st question, what tollchain version did you used to compile this code? In any setting I don't get same output like in output folder. I managed to compile working version when I removed keilTrialVer, linEnabled definition and commands 4, 6, 7. But I still don't undestand why should I do that.

Regarding 2nd question now I have another problem when I added adressing to isrs. Have you encountered problem that when there is i.e. 4 device connected to LIN command2 (burst etc) needs to be send 2 times. I make proper delays like 50ms to wait for executing this command. When I have only one device connected to LIN it works ok with only one command2 sent.

Regards, Krzysztof

0 Mekre Mesganaw over 3 years ago in reply to Krzysztof Pranga

TI__Expert 6855 points

Hi Krzysztof,

I will check internally on the second question.

Regards,

Mekre

0 Krzysztof Pranga over 3 years ago in reply to Mekre Mesganaw

Prodigy 80 points

Dear Mekre,
Have you got any update.

Regards

0 Mekre Mesganaw over 2 years ago in reply to Krzysztof Pranga

TI__Expert 6855 points

Hi Krzysztof,

I was not able to find any cases in the past of what you mentioned in question 2. As a sanity check, could you try this on our EVMs to see if you observe the same issue? Please also try both versions of the code to see if you are observing the same issue you are referring to in question 1.

Regards,

Mekre

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PGA450-Q1: PGA450 - LIN firmware ver 2.9 problems