Hi all, I have been using the Jetson NX devkit along with the Sony IMX219 sensor. And I have encounterd problem on the exposure control function.
There is littile change in coarse_time and exposure times, while I was taking several pictures with source light changed significantly. The tools I used to take pics was nvgstcapture-1.0 command line tools, and the driver function is “imx219_set_exposure(…)”.
I want to know where the paoblem is (it seems like the exposure time has always been largest and unchanged), and how can I fix it. (When I say fix it I mean to make the exposure time change Linearly)
Below are the log information I filtered with “exposure”, and the log I added specially has “mine” word in the it. Full log file are enclosed.
[ 66.161388] imx219 9-0010: sensor_common_parse_control_props:mine: get exposure_factor : 1000000
[ 66.161472] imx219 9-0010: sensor_common_parse_control_props:mine: get exposure_factor : 1000000
[ 66.161551] imx219 9-0010: sensor_common_parse_control_props:mine: get exposure_factor : 1000000
[ 66.161689] imx219 9-0010: sensor_common_parse_control_props:mine: get exposure_factor : 1000000
[ 66.161777] imx219 9-0010: sensor_common_parse_control_props:mine: get exposure_factor : 1000000
[ 66.193250] imx219 10-0010: sensor_common_parse_control_props:mine: get exposure_factor : 1000000
[ 66.193321] imx219 10-0010: sensor_common_parse_control_props:mine: get exposure_factor : 1000000
[ 66.193387] imx219 10-0010: sensor_common_parse_control_props:mine: get exposure_factor : 1000000
[ 66.193453] imx219 10-0010: sensor_common_parse_control_props:mine: get exposure_factor : 1000000
[ 66.193561] imx219 10-0010: sensor_common_parse_control_props:mine: get exposure_factor : 1000000
[ 107.322599] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 107.322606] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 107.322613] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 107.322619] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 107.347318] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 107.347326] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 107.347333] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 107.347339] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 107.556983] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 107.556992] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 107.557003] imx219 10-0010: imx219_set_exposure: val: 33329 [us], coarse_time: 1635 [lines]
[ 107.557008] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 107.597810] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 107.597819] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 107.597825] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 107.597831] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 107.633652] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 107.633658] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 107.633666] imx219 10-0010: imx219_set_exposure: val: 33329 [us], coarse_time: 1635 [lines]
[ 107.633671] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 107.695105] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 107.695111] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 107.695121] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 107.695126] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 107.801040] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 107.801046] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 107.801054] imx219 10-0010: imx219_set_exposure: val: 33329 [us], coarse_time: 1635 [lines]
[ 107.801059] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 107.836852] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 107.836861] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 107.836871] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 107.836878] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 107.870294] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 107.870303] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 107.870310] imx219 10-0010: imx219_set_exposure: val: 33329 [us], coarse_time: 1635 [lines]
[ 107.870315] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 107.901015] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 107.901026] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 107.901036] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 107.901042] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 108.009176] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 108.009184] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 108.009194] imx219 10-0010: imx219_set_exposure: val: 33329 [us], coarse_time: 1635 [lines]
[ 108.009199] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 108.040800] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 108.040809] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 108.040820] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 108.040826] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 166.071667] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 166.071674] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 166.071683] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 166.071689] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 166.350305] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 166.350312] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 166.350321] imx219 10-0010: imx219_set_exposure: val: 33329 [us], coarse_time: 1635 [lines]
[ 166.350326] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 166.456769] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 166.456778] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 166.456785] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 166.456790] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 166.522148] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 166.522158] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 166.522169] imx219 10-0010: imx219_set_exposure: val: 33329 [us], coarse_time: 1635 [lines]
[ 166.522175] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 166.556766] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 166.556798] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 166.556808] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 166.556813] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 166.728886] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 166.728895] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 166.728904] imx219 10-0010: imx219_set_exposure: val: 33329 [us], coarse_time: 1635 [lines]
[ 166.728910] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
[ 166.969356] imx219 10-0010: imx219_set_exposure:mine: coarse_time before min max : 1639[lines]
[ 166.969366] imx219 10-0010: imx219_set_exposure: exposure limited by frame_length: 1635 [lines]
[ 166.969378] imx219 10-0010: imx219_set_exposure: val: 33330 [us], coarse_time: 1635 [lines]
[ 166.969384] imx219 10-0010: imx219_set_exposure:mine: coarse_time converts to register type:ct_regs[0]: 6, [1]: 99
torch_imx219.txt (25.9 KB)