home *** CD-ROM | disk | FTP | other *** search
- From: stan@hprpcd.rose.hp.com (Stan Witherspoon)
- [1] Re: FT-530 Communications Port Info
- Date: Sat Aug 28 23:25:55 EDT 1993
- Organization: Hewlett Packard Roseville Site
- Lines: 27
- X-Newsreader: TIN [version 1.2 PL1]
-
- If the Ft-530 uses a similiar scheme as the Ft-411, I have has success
- with the following:
-
- If you look at the schematic, the mike jack is a STEREO 2.5mm
- jack. I found a stereo 2.5 mm plug as a electronics distributor.
- The middle ring is connected to an I/O pin on the processor
- through a (I think) 10K resistor. I found that when you put the
- 411 in the "clone" mode, you get 4800 baud rs232 with ttl
- levels. I hooked up a ttl to rs-232 converter and was able to
- copy the data to a file on my pc.
-
- Someone on the net had written a translation program in ADA. I
- haven't gotten around to translating it into C yet. Basically
- the data is sent in nibbles with the nibbles swapped in each
- byte. The whole record is 544 bytes long. I would guess that the
- data itself is much different for the ft-530, but this would be
- a good place to start.
-
- stan--
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- ~ Stan Witherspoon N6SCE ~ Disclaimer ~
- ~ Systems Technology Div. of Hewlett Packard ~ These are my personal opinions ~
- ~ 8010 Foothills Blvd. ~ and do not represent the views ~
- ~ Roseville Ca. 95678 (916) 785-5071 ~ of anyone or anything else. ~
- ~ Email: ucbvax!hplabs!hprpcd!stan or stan@hprpcd.rose.hp.com ~
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-