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Tommy Tyler Expert
Joined: 21 Sep 2003 Posts: 412 Location: Denver mountains |
Posted: Tue Nov 21, 2006 7:27 pm Post subject: |
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kupakai wrote: | A bit off topic, but will the JP1 serial cable work with the adapter as well? I know there is a USB version as well, but with parts I have around, serial version would be simpler to make, and I'd try it if there's a possibility. |
Sorry, the JP1 cable will not work with a serial to USB adapter because, rather than using true RS232 serial communications as a JP1.x cable does, JP1 uses a couple of control lines in "bit bang" mode to clock data directly to/from the EEPROM, and the USB port wouldn't have a clue what the signals are.
Thanks for letting us know about your success with the USB adapter.
Tommy |
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tommysingh
Joined: 28 Nov 2006 Posts: 1
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Posted: Tue Nov 28, 2006 4:31 pm Post subject: HUGE PINE USB to SERIAL, HELP!!!!! |
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Guys...
please help - im no technical expert in the area...
i've got a brother card reader that is meant to connect via serial...
bought this hugepine usb to rs232 cable off ebay... i have xp service pack 1 (i think)... what the hell is wrong with it because it wont work... the software i use says nothing is connected... i tried it on win2000 and it works fine...
any ideas?
(another Tommy surely will confuse the matter further) |
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prelude JP1 Vendor
Joined: 26 Jun 2004 Posts: 119 Location: Canada |
Posted: Tue Nov 28, 2006 10:25 pm Post subject: |
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can you identify the chipset? is it a PL2303? _________________ Get the coolest diy gadgets from http://www.diygadget.com today! |
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cywelchjr
Joined: 14 Oct 2006 Posts: 33 Location: Sacramento, California, USA |
Posted: Sat Dec 23, 2006 3:56 am Post subject: |
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Here is something I have found that I have not noticed anywhere else. I can only use the serial cable with my USB to serial adapter if I plug in the adapter before I boot the computer. If I plug it in aftwards, it can't open the port, even though other programs seem to be able to. As long as I plug it in before I boot, or I restart after plugging it in, then it work fine (at least with the JP1.2 cable I bought from DIYGadgets, the 1.x cable that I got to modify I appear to have damaged while modifying it, and just haven't gotten around to having the time to figure it out yet (it was frankly cheaper for me to just buy a good one that didn't need modded)).
Hope this helps,
Cy
1 9910, 3 Millenium 4's, 3 Comcast 1067A's and one Visio OEM 1.2 remote. |
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cursedgriffin
Joined: 02 Feb 2007 Posts: 11
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Posted: Sat Feb 03, 2007 5:18 pm Post subject: |
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i was having the problem where IR7beta3 kept saying "failed to open JP1.2 interface" when i was using my jp1.2 serial cable, so i went to radioshack and bought a usb->serial adapter, and after installing drivers i still get the failed to open jp1.2 interface eventhough the tester detects my jp1.2 remote....any advice? |
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prelude JP1 Vendor
Joined: 26 Jun 2004 Posts: 119 Location: Canada |
Posted: Mon Feb 19, 2007 4:39 pm Post subject: |
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I bought 3 different brands of USB to Serial adapter, none of them work. One I believe has PL2303 chip, but it is a custom firmware made by Alcor Micro (PID = 9720). Here is the tester.exe result:
Code: |
D:\jp12.test>debugtester.exe COM6
tester version 0.01
jp12io.dll version 0.01
Parsing command list file tester.dat
Openning COM6
DCB paramaters:
DCBlength=28
BaudRate=38400
fBinary=1
fParity=0
fOutxCtsFlow=0
fOutxDsrFlow=0
fDtrControl=1
fDsrSensitivity=0
fTXContinueOnXoff=0
fOutX=0
fInX=0
fErrorChar=0
fNull=0
fRtsControl=1
fAbortOnError=0
fDummy2=0
wReserved=0
XonLim=0
XoffLim=0
ByteSize=8
Parity=0
StopBits=2
XonChar=17
XoffChar=19
ErrorChar=0
EofChar=0
EvtChar=0
wReserved1=0
Unable to connect
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_________________ Get the coolest diy gadgets from http://www.diygadget.com today! |
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jherrick JP1 Vendor
Joined: 31 Dec 2003 Posts: 225 Location: South Berwick, ME |
Posted: Fri Feb 23, 2007 3:31 pm Post subject: |
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I just tested the jp1.x cables that I build with a Parallax USB to 232 Adapter #28030. It uses the FTDI FT232RL chip and drivers. The cables work fine on my XP Pro machine w/SP2.
Jim |
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fpreston
Joined: 11 Jan 2007 Posts: 51
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Posted: Sun Mar 25, 2007 4:21 pm Post subject: JP1.2 USB |
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I tried a serial to USB adapter at first. (My Cassiopeia was using my only standard serial port). I couldn't get the JP1.2 to work. Even swapping to the real serial port didn't help. I had to disable the ActiveSync connection to it first and reboot.
Now, I use the USB adapter for my ActiveSync (to save swapping cables), but it still interferes with the JP1.2 when activated.
Fred |
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