DSP BIOS - Configuration Tool - C2000 PIE - CAN Interrupt configuration

Krishna Allam

Expert 7985 points

Hello DSP BIOS Champs!!

Here is a brief summary of the development environment I am working with:

CCS Version: CCSV4 ( Version: 4.2.1.00004 )

Target: TMS320F28335 (eZDSP from Spectrum Digital)

Emulators: XDS510 USB and XDS100v2

Software Package: spra958i.zip (from TI)

Application: \spra958i\spra958i\CCSv4\F28335_examples_CCSv4_2010Aug10\F28335_example_BIOS_flash

Step to Reproduce:

The problem is that when I configure the CAN interrupts via the DSP BIOS configuration tool GUI, the interrupts do not work.

However, if I manually configure the interrupts via the application as shown below, the interrupts work fine:

EALLOW;

PieCtrlRegs.PIEIER9.bit.INTx5 = 1;

IER |= (1 << (8));

EDIS;

The DSP BIOS config tool automates the process of configuring the interrupts right? What could be wrong here?

Thanks,
Krishna Allam

over 14 years ago

0 Steven Connell over 14 years ago

TI__Mastermind 45025 points

Krishna,

Are you using BIOS 5 or BIOS 6? Also, which version?

Thanks,

Steve

0 Krishna Allam over 14 years ago in reply to Steven Connell

TI__Expert 7985 points

I am using BIOS 5. Specifically, it is the version that is delivered with the CCS4.2 release that I am using (bios_5_41_07_24)

Please let me know if you need any additional info.

Thanks,

Krishna

0 Karl Wechsler over 14 years ago in reply to Krishna Allam

TI__Mastermind 20805 points

Hi Krishna --

The configuration tool plugs the interrupt into the right location in the vector table. It does not enable the interrupt. You need to enable the interrupt and PIE in source code.

-Karl-

0 Krishna Allam over 14 years ago in reply to Karl Wechsler

TI__Expert 7985 points

Karl,

Thanks a lot...it makes sense now. I assume this is true for all target families and not just the C2000.

Regards,

Krishna

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DSP BIOS - Configuration Tool - C2000 PIE - CAN Interrupt configuration