CCS/AM3352: EDMA interrupt

user5954100

Expert 1690 points

Part Number: AM3352
Other Parts Discussed in Thread: SYSBIOS

Tool/software: Code Composer Studio

I want to create a hwi interrupt to EDMACOMPINT interrupt,which interrupt number is 12.

How to configure HWI parameters to generate the hwi tie to EDMACOMPINT .

My PDK version is pdk_am335x_1_0_13 and the sysbios version is bios_6_73_01_01

over 6 years ago

0 Frank Livingston over 6 years ago

TI__Mastermind 30108 points

Hi,

The UART DMA test application provides an example of configuring the EDMA3 LLD. Please see: http://software-dl.ti.com/processor-sdk-rtos/esd/docs/06_01_00_08/rtos/index_device_drv.html#examples,

The code for creating a HWI interrupt for EDMACOMPINT (ARM interrupt 12) is contained in file <PDK>\packages\ti\drv\uart\soc\am335x\sample_am335x_arm_int_reg.c, function registerEdma3Interrupts().

Please see the following locations for additional documentation on the EDMA3 LLD:

<PRSDK>\edma3_lld_2_12_05_30E\packages\ti\sdo\edma3\drv\docs
https://processors.wiki.ti.com/index.php/Programming_the_EDMA3_using_the_Low-Level_Driver_(LLD)

Regards,
Frank

0 user5954100 over 6 years ago in reply to Frank Livingston

Expert 1690 points

Thank you for your suggestion.

I found register EDMA3 interrupt is called in edma3init function,is it means edma3int has registered the hwi.

when I request a channel use api

EDMA3_DRV_requestChannel (EDMA3_DRV_Handle hEdma,
uint32_t *pLCh,
uint32_t *pTcc,
EDMA3_RM_EventQueue evtQueue,
EDMA3_RM_TccCallback tccCb,
void *cbData)

the EDMA3_RM_TccCallback tccCb is the hwi matched pLCh?

so ir means tccCb is the isr which the user can call?

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CCS/AM3352: EDMA interrupt