Hi, It might be the reset signal, the standard sample is configured to work with an external reset, either try to add a 4k7 pull up resistor to the reset pin, or change the JAL file by changing the pragma target MCLR to INTERNAL Albert
On May 23, 6:24 pm, j j <[email protected]> wrote: > Hi, > I want to set up a 18F14K50 as a serial port... I've tried compiling > & programming (with my pickit2) the hex file generated by the file > 18f14k50_usb_serial.jal using the defaults in JalEdit. > > I have my 18f14K50 set up as described in the .jal file.... (on a > breadboard) > > -- A 12 MHz external crystal and 15pf caps connected to OSC1/2 > -- pin 17 (Vusb) with a 220 nF capacitor to the ground > -- The connection between PC and the 18F14k50 > -- +5v to power the board (don't forget 100nf decoupling cap > -- data- wire to pin 18 (D-) > -- data+ wire to pin 19 (D+) > -- ground wire to the Vss of the PIC > > I have 5v at vdd and vss all my connections are good. > > After programming, I plug in my USB cable and my PC had no reaction at > all (not even USB device not recognized) > > The same setup works with the sample serial program in MPLab--- I get > a device found and once driver is loaded, a virtual serial port. > > I'd rather use JAL for simplicity... > > What might I be doing wrong? > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group > athttp://groups.google.com/group/jallib?hl=en. -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
