TDA4VM: How to implement the timeout or parity errors detect function on csirx module?

I don't if the ASF function has been enable default in csirx module?

Hi fugang zhen,

Could you please provide some more information on timeout and parity errors? Is the time out on frame capture? What are the parity errors that you would like to monitor?

Regards,

Brijesh 

Hi brijesh,

Thanks for your reply. The explanation of timeout and parity error i want to detect as below:

timeout error: transaction timeout

parity error: data and address paths parity

According to J721E_DRA829_TDA4VM_AM752x_SR1.0_NDA_TRM_VA.pdf, I made the following attempts：

1. clear the bit 2 and bit 4 of the register CSI_RX_IF_VBUS2APB_INT_MASK, i can enable the interrupt of timeout error and parity error

2. write one to bit 2 and bit 4 of the register CSI_RX_IF_VBUS2APB_ASF_INT_TEST, i can emulate hardware error event

3. then i read the register CSI_RX_IF_VBUS2APB_ASF_INT_STATUS, the value of bit 2 and bit 4 will be set to 1

However, after i tried the 3 steps above, i cound't get the expect result, the value of register CSI_RX_IF_VBUS2APB_ASF_INT_STATUS is still zero.

Hi fugang zhen,

Do you see any thing in the CSI_RX_IF_VBUS2APB_ASF_INT_RAW_STATUS register? Also is the CSIRX module itself enabled? 

Regards,

Brijesh

Hi brijesh,

The value of CSI_RX_IF_VBUS2APB_ASF_INT_RAW_STATUS register is also zero. The csirx module is already enabled, the camera works correctlly.

Hi brijesh,

Do you have any idea about this question?

Hi fugang zhen,

I tried it on SDK8.2, by connecting mcu2_0 using CCS. I see than when i write 0x14 (bit2 and bit4) on CSI_RX_IF_VBUS2APB_ASF_INT_TEST register, i do see these bits getting set in CSI_RX_IF_VBUS2APB_ASF_INT_RAW_STATUS and CSI_RX_IF_VBUS2APB_ASF_INT_STATUS registers. So this feature is working fine.. 

From which core are you trying to set these bits? 

Regards,

Brijesh

Hi brijesh,

I try on mcu2_0 core but on sdk7.3. Is this function support on sdk7.3?

Hi fungang zhen,

These are HW register, nothing to do with SDK. I just used SDK, so that it can enable mcu2_0 and poweron CSIRX. As long as, this is taken care, it should work. 

Also which exactly device are you using? is it TDA4VM, GP or HS device? 

I checked it on GP device.

Regards,

Brijesh

Hi brijesh,

I'm using TDA4VM device.

Hi,

How do you check it? I used CCS memory browser to check it. 

Regards,

Brijesh

Hi brijesh,

I read back the register with the API provided in the code.

Hi brijesh,

I fixed a bug with my code and solved this problem. Thank you for your patient reply.