Driverless mode 393

Description

Instructions on how to disable sensor driver and get images from image sensor (for MT9F002 sensor)

Instructions

pre

• to load bitstream for MT9F002 appropriate changes need to be made to:
  • device tree

set sensors to mt9f002 in elphel393-detect_sensors,sensors entry

• • /etc/elphel393/default_10389.xml for setup w/o 10389 or 10389's eeprom otherwise write MT9F002 as application
• Disable driver

root@elphel393~# touch /etc/elphel393/disable_driver
# then reboot

init

• start python session:

root@elphel393~# cd /usr/local/verilog/; test_mcntrl.py @hargs-after

• init (if the driver is not disabled the i2c writes will not work):

setup_all_sensors True None 0x1 False 4384 3280

write_sensor_i2c 0 1 0 0x31c08000 # hispi timing
write_sensor_i2c 0 1 0 0x030600b4 # pll multiplier
write_sensor_i2c 0 1 0 0x31c68400 # hispi control status
write_sensor_i2c 0 1 0 0x306e9280 # datapath select
write_sensor_i2c 0 1 0 0x301a001c # reset and start streaming

hispi_phases_adjust 0

write_sensor_i2c 0 1 0 0x301a001c # reset and start streaming

setup_all_sensors True None 0x1 False 4384 3280
compressor_control all None None None None None 2
program_gamma all 0 0.57 0.04

write_sensor_i2c 0 1 0 0x3028000a # global gain
write_sensor_i2c 0 1 0 0x302c000d # some gain
write_sensor_i2c 0 1 0 0x302e0010 # some gain
write_sensor_i2c 0 1 0 0x30120080 # coarse exposure

jpeg_acquire_write

#write_sensor_i2c 0 1 0 0x301a0018 # put to standby

• inspect image:

http://192.168.0.9/img.jpeg

Example: 1600x1200 window

8-bit compress to jpeg

• setup:

write_sensor_i2c 0 1 0 0x3002001e
write_sensor_i2c 0 1 0 0x300604f5
write_sensor_i2c 0 1 0 0x034e04d8
write_sensor_i2c 0 1 0 0x300a056a
write_sensor_i2c 0 1 0 0x30040090
write_sensor_i2c 0 1 0 0x300806cf
write_sensor_i2c 0 1 0 0x034c0640
write_sensor_i2c 0 1 0 0x300c04c8

setup_all_sensors True None 0x1 False 1600 1200
compressor_control all None None None None None 2

write_sensor_i2c 0 1 0 0x301a001c
# wait
write_sensor_i2c 0 1 0 0x301a0018

jpeg_acquire_write

• inspect:

refresh http://192.168.0.9/img.jpeg

8-bit raw

• setup

same as above, no need to repeat if already done

• capture (copy-pasting the code below with comments will work)

setup_all_sensors True None 0x1 False 1600 1200

write_sensor_i2c 0 1 0 0x301a001c
# wait
write_sensor_i2c 0 1 0 0x301a0018

# notice membridge_start (under Setting membridge for sensor 0)
# it can be different: 0x2e000000 or 0x2dc00000

membridge_start
mem_save "/usr/local/verilog/sensor_dump" 0x2e000000 0x400000

• copy (from an ssh session in another terminal)

scp /usr/local/verilog/sensor_dump ip@host:/path/1600x1200_8bit.raw

• open:

Use imagej: File > Import > Raw...

16-bit raw

• setup

same as above, no need to repeat if already done

• capture (copy-pasting the code below with comments will work)

# Notice that the window width in 16 bit mode is 2x
setup_all_sensors True 18 0x1 False 3200 1200
set_sensor_mode 0 1 1 True True
enable_memcntrl_en_dis 12 True

write_sensor_i2c 0 1 0 0x301a001c
# wait
write_sensor_i2c 0 1 0 0x301a0018
 
# notice membridge_start (under Setting membridge for sensor 0)
# it can be different: 0x2e000000 or 0x2dc00000

membridge_start
mem_save "/usr/local/verilog/sensor_dump" 0x2e000000 0x400000

• copy (from an ssh session in another terminal)

scp /usr/local/verilog/sensor_dump ip@host:/path/1600x1200_16bit.raw

• open:

Use imagej: File > Import > Raw...

Example: other window sizes

• Download and run mt9f002_window_generator.py
• Then edit the code snippets for 1600x1200 according to the new window size
• If getting raw sensor data 8-bit and 16-bit the membridge buffer is 4MB, so calculate accordingly:

for 8-bit : WxH < 4M
for 16-bit: WxH < 2M
If not then - the buffer is circular which will result in overwriting of the beginning of the image