AM62P-Q1: Eth-DMA interrupt in MCAL

Hi,

Do you want to operate in interrupt mode rather than polling mode for Ethernet DMA? Are you working with any existing example? or Are you bringing up your own application to work with?

Regards,
Teja.

Yes, i am working with mcal example eth_load_app. But how can i know the whether the interrup number configured is availale for MCU and how they are mappped to HW resources? 

Last question, what 's t he function 

Hi,

Can you please run the eth_test_app for testing the interrupt mode? This uses interrupts for DMA for packet handling. 

Changxing Du said:

vTaskStartScheduler() do, without it the interrupt cannot be triggered.

This is the OS call to start the scheduler to begin scheduling the tasks, and start the rest of the operating system into action.

Regards,
Teja.

Yes, i have bring the demo work. Can you please answer my questesion:

1) How the interrup number configured is availale for MCU and how they are mappped to HW resources

2) why without the vTaskStartScheduler(), the interrupt doesnot work?

Hi,

Please let me check with our expert for more details and get back to you on this.

Thanks and regards,
Teja.

1) You can refer to TRM for AM62P session 10.4.2 - Interrupts (Outputs) to see how maps between DMASS virt irq to core IRQ

but the pre-configure IRQ number for ETH should always works i.e: 68 for Tx and 69 for Rx

2) this is the needed function to start FreeRtos OS, so user should always call it