Video_Exposure_Analyzer (Introduction in shortform)


The positions of S1 to S8 are only sampled shortly after Power On or Reset. To make a change working a Power On or a Reset has to be accomplished after altering a switch.


S1, S2, S3, S4, S5
Select mode 00 - 31


S6 			
ON = Intro ON
Intro ON means that after a reset or power ON the positions of all 8 switches are shown on the first 8 of 10 leds for around 1 second. After that one led after another is lit shortly for function test. During INTRO all LEDs are lit at maximum brightness. After INTRO selected mode starts running.
OFF = Intro OFF
After power ON or reset immediate the selected mode starts running.


S7
ON = Lit LEDs on every Odd field in the mode selected by S1-S5
OFF = No LED in a Odd field


S8
ON = Lit LEDs on every Even field in the mode selected by S1-S5
OFF = No LED in a Even field


Note:
Every V_Sync also triggers a break to the running led row. So in NTSC some led rows are interrupted before finishing by the end of the field and the beginning of the next one (@16.68335ms after the last V_Sync).

LED brightness
Controlled with external Pot RP1.


G. Dangl
June 2006