TMS320C6678: tms320c6678

user5248663

Prodigy 110 points

Part Number: TMS320C6678
Other Parts Discussed in Thread: SYSBIOS

hi.

we want to use gpio10 as an interrupt to 6678,and we use sysbios.

we config the system int to 90,host int to 2, program is as follow:

Hwi_Params params;

Hwi_Params_init(&params);

params.eventid = 62; params.arg=2;params.enableInt = true;

Hwi_create(15,&myisr,&param,&eb);

we config gpio10 to input pin, and enable rising edge intr, when I create a rising edge on gpio10 pin, it can't jump into the isr func.

over 5 years ago

0 Victor Kazmirenko over 5 years ago

Guru 13202 points

Hello!

You may want to skim through http://processors.wiki.ti.com/index.php/Configuring_Interrupts_on_Keystone_Devices.

As your HWI was created in enabled state, one thing to check is whether system event was enabled too.

0 lding over 5 years ago in reply to Victor Kazmirenko

TI__Guru* 95265 points

Hi,

You may also refer to this https://e2e.ti.com/support/processors/f/791/t/838744

Regards, Eric

0 user5248663 over 5 years ago in reply to lding

Prodigy 110 points

I did enable the system event. the function of mapping interrupt workd well for my pcie interrupt, but failed to map gpio intr. I doubt about the system event number in my call ,does system event 90 is the correct event for gpio10 interrupt?can it map to host event 2?

0 Victor Kazmirenko over 5 years ago in reply to user5248663

Guru 13202 points

Hi again,

If I remember things correctly, events sources have predefined mapping to inputs. As per SPRS691E, clause 7.10.1 Interrupt Sources and Interrupt Controller, GPINT10 event could be:

System event #84 as input to CorePack INTC;
System event #2 on CIC2;
System event #10 on CIC3.

As I understand, system event #90 is a way to signal GPIO0 to Core0, GPIO1 to Core1 and so forth. So I would try #84 as input event number. I see no troubles using host interrupt #2 as long as it was free.

Hope this helps.

0 lding over 5 years ago in reply to Victor Kazmirenko

TI__Guru* 95265 points

Hi,

Added to rrlagic's comments,

System event #2 on CIC2; ====> this is to EDMA CC2 and CC3
System event #10 on CIC3. =====> this is to EDMA CC0 and Hyperlink

So, please try using event id #84 first.

Regards, Eric

Processors

Processors forum

TMS320C6678: tms320c6678