Post by thread:[PIC]: Has any had any luck with a usb to rs232 co

I recently purchased a usb to rs-232 converter in order to interface to my MPLAD-ICD test kit. My laptop has no rs-232 port, only usb. Unfortunately, I can't get the converter to work, nor can I get any information on the converter because the company went out of business. I think the MPLAB interface is hard coded for an interrupt that is not on the converter, or something to do with the virtual driver for the converter. Can you recommend a USB to rs-232 converter that is known to work with the MPLAB kit? -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email spam_OUTlistservTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

I'm not sure, but I think that MPLAB may do more than write to the "port" in a generic way. It either bypasses drivers and writes to hardware (does it toggle some odd lines, perhaps?), or writes serial data in a way that the OS can not redirect to a USB/serial converter. I'd do what I can to solve this problem, but I'd need the help of this list. It might be "unsolvable" if MPLAB is uncooperative. Anyone have any insight? -Robert Severson http://www.usbmicro.com http://usbsimm.home.att.net http://www.jged.com http://www.annatechnology.com {Quote hidden}> I recently purchased a usb to rs-232 converter in order to > interface to my > MPLAD-ICD test kit. My laptop has no rs-232 port, only usb. > Unfortunately, I > can't get the converter to work, nor can I get any information on the > converter because the company went out of business. I think the MPLAB > interface is hard coded for an interrupt that is not on the > converter, or > something to do with the virtual driver for the converter. > Can you recommend > a USB to rs-232 converter that is known to work with the MPLAB kit? > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email .....listservKILLspam@spam@mitvma.mit.edu with SET PICList DIGEST in the body > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listservKILLspammitvma.mit.edu with SET PICList DIGEST in the body

On Tue, 6 Mar 2001 10:03:58 -0600, you wrote: Yes - I played around with an entrega unit - I can't remember if I tried it on MPLAB-ICD or Picstart Plus. The only problem was that MPLAB didn't see the new (usb) COM port number (COM3), so you couldn't select it - it was greyed-out onscreen. However by editing the port number directly in MPLAB.INI it worked fine. If you have no luck with this and really need to use it on a laptop with no serial port, a PCMCIA serial adapter will almost certainly work as it is a 'real' uart chip mapped into the PC's address space. RS232-PCMCIA adapters are significantly more expensive and harder to find though. {Quote hidden}>I'm not sure, but I think that MPLAB may do more than write to the "port" in >a generic way. It either bypasses drivers and writes to hardware (does it >toggle some odd lines, perhaps?), or writes serial data in a way that the OS >can not redirect to a USB/serial converter. > >I'd do what I can to solve this problem, but I'd need the help of this list. >It might be "unsolvable" if MPLAB is uncooperative. > >Anyone have any insight? > >-Robert Severson >http://www.usbmicro.com >http://usbsimm.home.att.net >http://www.jged.com >http://www.annatechnology.com > > >> I recently purchased a usb to rs-232 converter in order to >> interface to my >> MPLAD-ICD test kit. My laptop has no rs-232 port, only usb. >> Unfortunately, I >> can't get the converter to work, nor can I get any information on the >> converter because the company went out of business. I think the MPLAB >> interface is hard coded for an interrupt that is not on the >> converter, or >> something to do with the virtual driver for the converter. >> Can you recommend >> a USB to rs-232 converter that is known to work with the MPLAB kit? >> >> -- >> http://www.piclist.com#nomail Going offline? Don't AutoReply us! >> email .....listservKILLspam.....mitvma.mit.edu with SET PICList DIGEST in the body >> -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email EraseMElistservspam_OUTTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

on 3/6/01 7:47 AM, Ed Bockhoefer at e.bockhoeferspam_OUTpatamerica.com wrote: > I recently purchased a usb to rs-232 converter in order to interface to my > MPLAD-ICD test kit. My laptop has no rs-232 port, only usb. Unfortunately, I > can't get the converter to work, nor can I get any information on the > converter because the company went out of business. I think the MPLAB > interface is hard coded for an interrupt that is not on the converter, or > something to do with the virtual driver for the converter. Can you recommend > a USB to rs-232 converter that is known to work with the MPLAB kit? I can't speak to the MPLAB-ICD, but using the WARP-13a from Newfound Electronics (http://www.new-elect./com) I'm able to use MPLAB to connect using a uConnect-brand USB-to-serial adapter. And all this from within VirtualPC on an Apple PowerBook! ------------------------------------------------------------ Roderick Mann @spam@rmannKILLspamlatencyzero.com.sansspam -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics

At 11:37 AM 3/9/01 -0800, you wrote: >on 3/6/01 7:47 AM, Ed Bockhoefer at KILLspame.bockhoeferKILLspampatamerica.com wrote: > >> I recently purchased a usb to rs-232 converter in order to interface to my >> MPLAD-ICD test kit. My laptop has no rs-232 port, only usb. Unfortunately, I >> can't get the converter to work, nor can I get any information on the >> converter because the company went out of business. I think the MPLAB >> interface is hard coded for an interrupt that is not on the converter, or >> something to do with the virtual driver for the converter. Can you recommend >> a USB to rs-232 converter that is known to work with the MPLAB kit? > general google search: http://www.google.com/search?q=RS232+USB+converter -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics