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Topic: Transport Control via RS232 (Read 2 times) previous topic - next topic

AWOL

Your next step should be to find and post a link to the card reader device.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.


AWOL

OK, that looks fairly conclusive that you need RS232 converters.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

PeterH


The shield that I am using


Is this the CF reader, or something else -and if so, what?
I only provide help via the forum - please do not contact me for private consultancy.

Loren



The shield that I am using


Is this the CF reader, or something else -and if so, what?


The shield that I'm using is a TTL to serial converter.  I did find some information.  I cant find a schematic but I think I have some stuff figured out.  Here is a picture:



Here is a close schematic of what I think is going on:


The main difference is that R1 and R2  pictured in the first image (both 1k) are between the TTL and the 232 chip.  The rest of the circuit looks to be the same as the second image.  Would those resisters be throwing a wrench in my works?


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