TDA4VM: GPIO bank interrupts

Zi Wang

Intellectual 415 points

Part Number: TDA4VM

Hello,

What is GPIO uses bank interrupts?

A bnak has 16 gpio
If any one of the 16 gpio triggers an interrupt, will this bank trigger an interrupt?

over 3 years ago

0 Brijesh Jadav over 3 years ago

TI__Guru**** 475745 points

Hi Zi Wang,

You can directly divide GPIO number by 16 to get the bank number. Each bank has 16 GPIOs.

Regards,

Brijesh

0 Zi Wang over 3 years ago in reply to Brijesh Jadav

Intellectual 415 points

Hello Brijesh,
What is the difference between "GPIO bank interrupts" and a single GPIO interrupt?
For example, now I want to configure GPIO0_33's interrupt for R5FSS0_CORE0

GPIO0_33 -> GPIO4 bank2 pin1 //In the pinmux register, VGPIO_SEL field (BITS[5:4]) = 2

struct tisci_msg_rm_irq_set_req rmIrqReq;
rmIrqReq.src_id = TISCI_DEV_GPIO4;
rmIrqReq.src_index = 2;
rmIrqReq.dst_id = TISCI_DEV_R5FSS0_CORE0;
rmIrqReq.dst_host_irq = 176 + 2; //CSLR_R5FSS0_CORE0_INTR_GPIOMUX_INTRTR0_OUTP_16 + bank2

or
//I don't know if I need to configure the VGPIO_SEL field in this way?

rmIrqReq.src_id = TISCI_DEV_GPIOMUX_INTRTR0;
rmIrqReq.src_index = 33;
rmIrqReq.dst_id = TISCI_DEV_GPIOMUX_INTRTR0;
rmIrqReq.dst_host_irq = 18;

What is the difference between the above two methods?

0 Brijesh Jadav over 3 years ago in reply to Zi Wang

TI__Guru**** 475745 points

Hi Zi Wang,

Zi Wang said:
What is the difference between "GPIO bank interrupts" and a single GPIO interrupt?

didn't get this question. Bank interrupt would come whenever any one of the GPIO interrupt is triggered.. Whereas single GPIO interrupt would come only if that GPIO interrupt is triggered. You could find more information in the TRM.

Regards,

Brijesh