MibSPI GIO Trigger

Manuel Fuchs

Other Parts Discussed in Thread: HALCOGEN

Hi,

how do I have to setup the TMS570 using HALCOGEN to trigger MibSPI1 by GIOA0? I configured the the transfer group 0 with trigger source TRG_GIOA0 and tried different trigger events. I also configured GIOA0 as an input.

My application initializes MibSPI and the GIO port using

mibspiInit();
gioInit();

as well as the mibspi data format by

mibspiSetData( mibspiREG1, 0, data );

If I change the input on GIOA0, nothing happens. Do I have to enable any interrupts? What did I miss?

Thanks in advance

Manuel

over 13 years ago

0 Chuck Davenport over 13 years ago

TI__Guru 59540 points

Hello Manuel:

Reviewing the driver code that Halcogen creates, I believe the issue might be that the TG is not yet enabled. I believe you also need to call the function

mibspiTransfer(mibspiBASE_t *mibspi, uint32_t group) in order to enable the TG which will then perform the transfer upon receiving the trigger eevent.

0 Manuel Fuchs over 13 years ago in reply to Chuck Davenport

Prodigy 170 points

Hello Chuck,

that was the right hint, thanks much. Now it works as expected.

Manuel

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MibSPI GIO Trigger