I'd like to talk to anyone who has worked with the C-MAX CME800-BUS WWVB receiver board. I have tried working with this part to the point of wanting to smash it with a mallet. I am trying to use it with a PIC 18F microprocessor and all I can get the thing to do is echo characters right back to the PIC. Anyway, any help is welcomed. Thanks! Mike Harpe
C-MAX CME8000-BUS problems
Started by ●December 19, 2006
Reply by ●February 2, 20072007-02-02
Can you give me any more details? I'm working on the C-MAX CME8000BUS-LP-01 right now and I may be able to help you out. On Dec 19 2006, 6:29 pm, Michael Harpe <m...@ple-technology.com> wrote:> I'd like to talk to anyone who has worked with theC-MAXCME800-BUS > WWVB receiver board. > > I have tried working with this part to the point of wanting to smash it > with a mallet. I am trying to use it with a PIC 18F microprocessor and > all I can get the thing to do is echo characters right back to the PIC. > > Anyway, any help is welcomed. > > Thanks! > > Mike Harpe
Reply by ●February 6, 20072007-02-06
I connected the CME-8000 to the serial port of a PIC 18F. All I get is the characters I sent looped back to me. If you need more information please email me directly. Thanks! Mike Harpe On 2007-02-02 20:09:31 -0500, amitpaulsingh@gmail.com said:> Can you give me any more details? > > I'm working on the C-MAX CME8000BUS-LP-01 right now and I may be able > to help you out. > > On Dec 19 2006, 6:29 pm, Michael Harpe <m...@ple-technology.com> > wrote: >> I'd like to talk to anyone who has worked with theC-MAXCME800-BUS >> WWVB receiver board. >> >> I have tried working with this part to the point of wanting to smash it >> with a mallet. I am trying to use it with a PIC 18F microprocessor and >> all I can get the thing to do is echo characters right back to the PIC. >> >> Anyway, any help is welcomed. >> >> Thanks! >> >> Mike Harpe
Reply by ●February 6, 20072007-02-06
If you connect the CME-8000 module directly to the PIC's serial port (assuming you take care of the voltage converter circuitry), you will only get loopback characters. I have another module from C-MAX that sits between the CME-8000 and my PIC, and this takes care of the weird one-wire serial interface that C- MAX seems to have implemented. I was trying to look for the part number on the C-MAX website, but I couldn't find it. There is, however, a schematic for this circuit at the link below. (Click on CME8000-BUS - RS232 converter -> download : the file is a pdf) http://c-maxgroup.com/downloads/search.php?search=CME8000-BUS&PHPSESSID=786b7279122b4582117aeaa046bebed4 Another thing I noticed was that using their PC demo software (also available on the page I linked to) failed when using my laptop and a USB->Serial Port converter. I had to use a desktop computer with a "real" serial port to get the CME8000 to respond. Hope that helped, Amit Singh On Feb 6, 5:29 pm, Michael Harpe <m...@ple-technology.com> wrote:> I connected the CME-8000 to the serial port of a PIC 18F. All I get is > the characters I sent looped back to me. > > If you need more information please email me directly. > > Thanks! > > Mike Harpe > > On 2007-02-02 20:09:31 -0500, amitpaulsi...@gmail.com said: > > > Can you give me any more details? > > > I'm working on the C-MAX CME8000BUS-LP-01 right now and I may be able > > to help you out. > > > On Dec 19 2006, 6:29 pm, Michael Harpe <m...@ple-technology.com> > > wrote: > >> I'd like to talk to anyone who has worked with theC-MAXCME800-BUS > >> WWVB receiver board. > > >> I have tried working with this part to the point of wanting to smash it > >> with a mallet. I am trying to use it with a PIC 18F microprocessor and > >> all I can get the thing to do is echo characters right back to the PIC. > > >> Anyway, any help is welcomed. > > >> Thanks! > > >> Mike Harpe