RTOS/TMS320F28379D: SYS/BIOS SCI Rx interrupt

Adria Perez Martinez

Part Number: TMS320F28379D
Other Parts Discussed in Thread: CONTROLSUITE, C2000WARE

Tool/software: TI-RTOS

Hi,

I want to configure an SCI Rx interrupt in a SYS/BIOS project. Right now I have implemented it by integrating driverlib into the SYS/BIOS project and using driverlib routines following driverlib sci loopback example.

But I have seen within SYS/BIOS pie example the next function header:

/*
 *  ======== PIE_post ========
 *  This function is used to manually trigger a PIE interrupt by writing
 *  directly to the PIEIFR register.
 *
 *  Calling this function will simulate the triggering of a peripheral
 *  interrupt.  In a real world app, this function would not be needed as the
 *  interrupt would be triggered automatically by the hardware peripheral
 *  itself.
 */

Then I wonder how can I configure the pie to trigger my ISR when anything is received through some SCI port without using driverlib (only using SYS/BIOS). Can anyone tell how?

I don't want to use neither C2000Ware bitfield support nor ControlSUITE.

Thanks in advance!

Best regards,

Adria

over 7 years ago

0 ToddMullanix over 7 years ago

TI__Guru* 96960 points

Hi Adria,

You need to use the Hwi to plug the interrupt if it is going to be making SYS/BIOS calls.

Todd

0 Adria Perez Martinez over 6 years ago in reply to ToddMullanix

Expert 1280 points

Hi Todd,

Okay, then I understand that it is possible to configure an Rx SCI interrupt without using neither driverlib nor bitfiled support, only with SYS/BIOS APIs. Then can you also tell me how can it be done as there is only one example with SYS/BIOS interruptions and they are not triggered by any peripheral?

Best regards,

Adria

0 Adria Perez Martinez over 6 years ago in reply to Adria Perez Martinez

Expert 1280 points

Hi,

My last answer (Jan 24, 2019 6:32 PM) has been edited. I mention it just in case anyone read it before being edited.

Best regards,

Adria

0 Adria Perez Martinez over 6 years ago in reply to Adria Perez Martinez

Expert 1280 points

Hi,

I have got to configure the SCI RX interrupt using driverlib APIs (only from SCI module, avoiding to call any API from Interrupt module, which I guess is already being done by SYS/BIOS and it conflicts with driverlib in case both are used).

The problem I have now is that within the Hwi ISR I cannot call 2 necessary functions:

SCI_clearOverflowStatus(SCIB_BASE);
SCI_clearInterruptStatusSCIB_BASE, SCI_INT_RXFF);

I know I can accomplish that by, for example, posting an event within the Hwi and another tasks waits for this event and executes those 2 lines, but if there is a way to execute the 2 lines within the Hwi I really prefer it. Is there any way to do it within the Hwi?

Best regards,

Adria

0 ToddMullanix over 6 years ago in reply to Adria Perez Martinez

TI__Guru* 96960 points

This looks like a duplicate thread to e2e.ti.com/.../766316

I'm marking this one as TI Thinks Resolved. Let's deal with this question on the other thread.

Todd

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RTOS/TMS320F28379D: SYS/BIOS SCI Rx interrupt