Mikhail Karpenko committed changes to the Elphel git project :
Production

Mikhail Karpenko committed changes to the Elphel git project :
Production

Mikhail Karpenko committed changes to the Elphel git project :
Add printed tube cap and SFE support platform

Mikhail Karpenko committed changes to the Elphel git project :
Add printed tube cap and SFE support platform

Mikhail Karpenko committed changes to the Elphel git project :
Update 0393-12-29 to Rev. B

Mikhail Karpenko committed changes to the Elphel git project :
Update 0393-12-29 to Rev. B

AndreyFilippov committed changes to the Elphel git project :
merged with framepars, fixing JP4 (added dependency memcompressor on P_COLOR)

AndreyFilippov committed changes to the Elphel git project :
merged with framepars, fixing JP4 (added dependency memcompressor on P_COLOR)

AndreyFilippov committed changes to the Elphel git project :
fixed? switch to JP4 mode

AndreyFilippov committed changes to the Elphel git project :
fixed? switch to JP4 mode

Oleg Dzhimiev committed changes to the Elphel git project :
pass filename with URL

Oleg Dzhimiev committed changes to the Elphel git project :
pass filename with URL

Mikhail Karpenko committed changes to the Elphel git project :
Add port number to JPEG file name

Mikhail Karpenko committed changes to the Elphel git project :
Add port number to JPEG file name

ERS and GRR in MT9P001 on 10393:

← Older revision Revision as of 15:49, 4 October 2016 (7 intermediate revisions not shown)Line 21: Line 21: Some CMOS sensors have "global shutter" function mentioned in the specs but it is usually far from the real snapshot ones (as in the modern CCD-based camcorders). Such mode has simultaneous erase of all pixels, but the end of exposure is still determined by the it readout, so exposure time for each pixel will be different - pixels in the bottom of the frame will be exposed longer by the exposure time. Such mode is useful with the flash lamp, when it is triggered after all the pixels are erased but before the readout starts, but usually quite useless without such lamp (or external shutter of some kind - i.e. mechanical or LCD). Some CMOS sensors have "global shutter" function mentioned in the specs but it is usually far from the real snapshot ones (as in the modern CCD-based camcorders). Such mode has simultaneous erase of all pixels, but the end of exposure is still determined by the it readout, so exposure time for each pixel will be different - pixels in the bottom of the frame will be exposed longer by the exposure time. Such mode is useful with the flash lamp, when it is triggered after all the pixels are erased but before the readout starts, but usually quite useless without such lamp (or external shutter of some kind - i.e. mechanical or LCD). -==ERS and "global" modes in MT9P001 on 10393==+==ERS and GRR in MT9P001 on 10393== -[[File:Ers ch0 exp-4ms delay-30ms LED-10us.jpeg|400px|thumb|Fig.1 ERS Mode + external LED flash: flash duration = 10us, exposure = 4ms, external signal delay = 30ms]]+[[File:Ers ch0 exp-4ms delay-30ms LED-10us.jpeg|400px|thumb|Fig.1 ERS + external LED flash: flash duration = 10us, exposure = 4ms, external signal delay (LED flash) = 30ms]] -[[File:Global ch0 exp-1line delay-10ms LED-10us.jpeg|400px|thumb|Fig.2 Global Mode + external LED flash: flash duration = 10us, exposure = 1 line, external signal delay = 10ms]]+[[File:Global ch0 exp-1line delay-10ms LED-10us.jpeg|400px|thumb|Fig.2 Global reset release shutter + external LED flash: flash duration = 10us, exposure = 1 line, external signal delay (LED flash) = 10ms]]  +   +===Setup a flash using the programmable output trigger signal for rolling and global reset release shutters===  +   +====Electronic Rolling Shutter====  +{|  +|[[File:Ers ch0 exp-4ms delay-30ms LED-10us pars.jpeg|600px|thumb|Fig.3 Parameters, TRIG[4]==0 ]]  +|}  +Example steps:  + 1. TRIG_PERIOD=25000000 (decimal,4FPS)  +    TRIG_DELAY=3000000 (for port 0 = output sync signal delay after the 1st line exposure start, for ports 1..3 - a delay from the port 0 1st line exposure start to other port's 1st line exposure)  +    EXTERN_TIMESTAMP=0x0 (not using external timestamp)  +    TRIG_BITLENGTH=0xff (max output signal width is 10us)  +    TRIG_CONDITION=0x0 (internal source for trigger)  +    <b>TRIG_OUT=0x66555</b> (enables output trigger signal)  +  + 2. TRIG=0x4  + 3. Change any parameters from 1.  +   +====Global Reset Release shutter====  +{|  +|[[File:Global ch0 exp-1line delay-10ms LED-10us pars.jpeg|600px|thumb|Fig.4 Parameters, TRIG[4]==1]]  +|}  +Example steps:  + 1. TRIG_PERIOD=25000000 (decimal,4FPS)  +    TRIG_DELAY=1000000 (for port 0 = output sync signal delay after the 1st line exposure start, for ports 1..3 - a delay from the port 0 1st line exposure start to other port's 1st line exposure)  +    EXTERN_TIMESTAMP=0x0 (not using external timestamp)  +    TRIG_BITLENGTH=0xff (max output signal width is 10us)  +    TRIG_CONDITION=0x0 (internal source for trigger)  +    TRIG_OUT=0x66555  +  + 2. TRIG=0x14  + 3. Change any parameters from 1. Oleg

AndreyFilippov committed changes to the Elphel git project :
another gtkwave save file

AndreyFilippov committed changes to the Elphel git project :
another gtkwave save file

AndreyFilippov committed changes to the Elphel git project :
another gtkwave save file

AndreyFilippov committed changes to the Elphel git project :
another gtkwave save file

AndreyFilippov committed changes to the Elphel git project :
merged with framepars