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Pancam Rev2_3 firmware servo home fwd/rev values

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The Pancam works great!

My project is a 10 ft Blimp.

Has two brushless motors with Proportional pitch

(servo controls fwd and reverse pitch) and another

servo to control up/down movements( like a camera).

However, servo's need to swing reverse of one another.

The Pancam rev2_3 seems to support the above requirements.

however: I think the readme.pdf file may not have been updated

with latest compile?

The Center/Min/Max values, I think, are located at 0x20c--0x20e

vice 0x20a--0x20c (see below)

also

The last code is at 0x3d3 vice 0x3ff -

unable to locate 0x3f1 & 0x3f2. (see below)

reference:

http://www.rc-cam.com/pancam.htm

http://www.rc-cam.com/imagespc/firmware/pc2_3.zip

readme.pdf

-----------------------------------------------------------------

;USER CUSTOMIZATION: ROM EDITS

;ADDRESS DEFAULT VALUE DESCRIPTION

;0x20A 0x884 Home/Center position servo pulse, default = 1500uS.

;0x20B 0x836 Minimum servo pulse value, default = 870uS

;0x20C 0x8D3 Maximum servo pulse value, default = 2130uS

;The stored values can be converted into microseconds as follows:

;pulse = ((stored hex value-0x800) * 8uS) + 440uS

from the rev3_2.hex file:

Address: 0x208

:10 0410 00 530B A304 B10B E201 8208 3608 D308 FF0F 87

-----------------------------------------------------------------

from the rev3_2.hex file, last code, no 0x3f1 or 0x3f2 :

Address: 0x3D0

:08 07A0 00 2604 3E04 D40A 0300 04

;Swapping the 0x3F1 and 0x3F2 values will reverse the servo’s travel direction. The values

;are loosely checked for sane entries and will be firm limited if less than 750mS or

;greater than 2.25mS. Any values (including the defaults) that are used should be checked

;to ensure the servo does not stall at the end of travel.

------------------------------------------------------------------

Any and all help greatly desired and appreciated.

Thanks Richard

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Thanks for the detailed information. I'll look into this and report back what I find. I'll need some time to do that because of my swamped schedule.

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Just as you suspected, PanCam's V2.3 readme file had old information in it. Please download the project file again to obtain the corrected readme doc. For sure, please report back on how the revised information worked out for you.

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Just as you suspected, PanCam's V2.3 readme file had old information in it. Please download the project file again to obtain the corrected readme doc. For sure, please report back on how the revised information worked out for you.

Thank you very much! Works great!

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