CCS/TMS320C6418: Gpio Interrupt confguration without DSP-Bios .tcf file

Stefano Carlesi

Part Number: TMS320C6418

Tool/software: Code Composer Studio

Hi there,

I'm new with C6418 target and I'm not able to find good examples codes for my issue.

I simply want to configure a GPIO interrupt on the GP0[4] pin. It is clear to me how to configure the DSP registers GPEN/GPDIR, but how do I associate on my c-code an interrupt funcion to the GPIO event? (GpioIsr())

How is the vector table initialized? Does it have to be defined into the linker command?

I'm not using in my project DSP-Bios and a .tcf file.

Thank you

Regards

over 7 years ago

0 Yordan Kovachev over 7 years ago

TI__Guru**** 161600 points

Just to clarify, you are planning on creating a custom bare metal (no OS) application, right?

Best Regards,
Yordan

0 Stefano Carlesi over 7 years ago in reply to Yordan Kovachev

Expert 1325 points

Hi Yordan,
yes, I'm planning to create a custom bare metal (no OS) application.

0 Sahin Okur over 7 years ago in reply to Stefano Carlesi

TI__Mastermind 27355 points

Hello,

Please see if the following document helps resolve your issue:

processors.wiki.ti.com/.../Configuring_GPIO_Interrupts

If you have any questions please let me know.

0 Stefano Carlesi over 7 years ago in reply to Sahin Okur

Expert 1325 points

Hello Sahin,
thank you for your answer!
I get the process of configuring an interrupt, but I'm trying to understand how to Plug the ISR into the interrupt vector table, if I'm NOT using a DSP-Bios. With Dsp-Bios it is pretty easy with the .tcf configuration tool.
There is not an example where I can see how to do that? Is there a .cmd file to set up? How do I Plug the ISR into the interrupt vector table if I'm not using Dsp-Bios?

Thank you
Regards

0 Stefano Carlesi over 7 years ago in reply to Sahin Okur

Expert 1325 points

Hi Sahin,
have you been able to read my last comment?

Thank you!
Regards

0 Rahul Prabhu over 7 years ago

TI__Guru** 116830 points

Karles,

you are looking for code on a legacy DSP. We would recommend migration to one of the newer DSPs like C674x or C66x DSP family for better software support. However if you plan to continue to use the older DSP then we will need to point you to legacy software that was validated at the time of its release.

The register and functional CSL libraries for this devices were used for non-OS based development :

CSL Download:
processors.wiki.ti.com/.../Chip_support_library

Documentation :
www.ti.com/.../spru401j.pdf

(Appendix A provides non BIOS example usage of the IP modules)

LED example in C6418 BSL package:
c6000.spectrumdigital.com/.../install_xds510pp.html

Other than these, we are not aware of any examples that can be provided to enable this usecase as we don`t have the HW to provide any new examples.

Regards,
Rahul

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CCS/TMS320C6418: Gpio Interrupt confguration without DSP-Bios .tcf file