Shutter speed on VEYE-MIPI-290/327

[davnec]

I'm using VEYE-MIPI-327 camera module on Raspberry Pi and i try to set the longer shutter speed as possible.

I've found the mshutter setting (section 3.10 on i2c wiki) http://wiki.veye.cc/index.php/VEYE-MIPI-290/327_i2c/

The documentation say

value is exposure time（seconds)

I need to use the 327 module to take picture with exposure time between 1 to 10 seconds.

but I don't understand how to use this settings.

in section 3.16 (aespeed) i read

AE adjust speed,p1 is agc speed, p2 is shutter speed，Slow to Fast: [0,0x64]

But seems that nothing happens (but the i2c communication works)

It's possible to know the setting to take picture with longest time and greater sensitivity as possible?

[mmxuxp]

I need to use the 327 module to take picture with exposure time between 1 to 10 seconds.
this camera do not support shutter time longer than 1 seconds. CS-MIPI-IMX307 support that feature.
It's possible to know the setting to take picture with longest time and greater sensitivity as possible?
./veye_mipi_i2c.sh -w -f mshutter -p1 0x53
which is 1 secnod.