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OMAP-L138 GPIO cann't interrupt on DSP side when using DSPLINK?

Jiangfeng Xiao
Prodigy 10 points

Hello,

          I want  run into an  issue with the GPIO interrupt handling between the Linux kernel and my DSP application with dsplink on my EVM-L138.


         My DSP application is built using the following tool versions..     using  dvsdk_omapl138-evm_04_03_00_06_setuplinux

CGT: 6.1.14

DSP/BIOS: 5.41.3.17

DSPLINK: 1.65.01.05

BIOSPSP: 1.30.01

The ARM side kernel is from psp2.6.37.sdk

The DSP application has registered for a rising edge interrupt for pins GP8[5],and it can interrupt  on DSP side in the CCS without DSPLINK.it's event number is 75.


I tried the use the ARM and dsplink to triggered timer64 interrupt on DSP side ，and it's success.

Why dsplink support timer64 interrupt ,              but   didn't response GPIO interrupt?                

Is there something magical about bank 8 that we should avoid?


Any help would be appreciated!



thanks,

Xiao