Saving VeyeMIPI parameters

Reply to Saving VeyeMIPI parameters on Thu, 23 Oct 2025 06:46:03 GMT

veye_xumm — Thu, 23 Oct 2025 06:46:03 GMT

@nimadibaj
You have implemented the function of writing 0xff to 0x000b. Similarly, proceed to write the subsequent registers as well.
The method for writing the subsequent registers is the same as that for writing the 0x0b register, but they must be written in sequence.
Addr--->data
0x10 0xDE
0x11 0xC2
0x12 0x00
0x13 0x00

Reply to Saving VeyeMIPI parameters on Wed, 22 Oct 2025 13:20:19 GMT

nimadibaj — Wed, 22 Oct 2025 13:20:19 GMT

@veye_xumm

Dear Xumm, I tried all commands and I can not change the frame rate from 30 to 25 fps.

Please let's forget the veye_mipi_i2c.sh script and forget the Raspberry.

And please give me the hexadecimal values which I can send via I2c bus to imx462 module to change it's frame rate.
You said I should write 0xff to 0x000b for HS mode. And it works perfect. Now give me the such hex values for frame rate please.
Thank you.

Reply to Saving VeyeMIPI parameters on Tue, 21 Oct 2025 07:08:41 GMT

veye_xumm — Tue, 21 Oct 2025 07:08:41 GMT

@nimadibaj

@nimadibaj said in Saving VeyeMIPI parameters:

1_ Writing 0xff to 0x000b solved our problem and now the CSI-2 output of the module is in HS mode not LP mode. Thank you. Please give us a command to save this change.

Sorry, this command cannot save settings during a power outage.

@nimadibaj said in Saving VeyeMIPI parameters:

2_ We are trying to change video frame rate (now is 30fps and we need 25fps).
by these commands we cannot do this :
0x10 0xDE
0x11 0xC2
0x12 0x00
0x13 0x00
(sending Two byte, then sending next two byte and ... ).

write_videoformat()
{
	local videoformat=0;
	local res=0;
	res=$(./i2c_write $I2C_DEV $I2C_ADDR  0x10 0xDE );
	res=$(./i2c_write $I2C_DEV $I2C_ADDR  0x11 0xC2 );
	if [ $PARAM1 = "PAL" ] ; then
		res=$(./i2c_write $I2C_DEV $I2C_ADDR  0x12 0x0);
	elif [ $PARAM1 = "NTSC" ] ; then
		res=$(./i2c_write $I2C_DEV $I2C_ADDR  0x12 0x1);
	fi
	
	res=$(./i2c_write $I2C_DEV $I2C_ADDR  0x13 0x00 );
	printf "w videoformat is %s\n" $PARAM1;
}

The detailed code of the i2c_write function in the above example shows the actual bytecode it sends. Specifically, i2c_write sends multiple bytes in a single standard I2C transaction to modify register values.The specific steps are the same as writing 0xff to 0x000b.