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I am using a PIC18F87J50 and the RS232 is not working. I am using the same hardware setup as the PIC18F4550 USB Diagnostic board for the RS232. I also got RS232 working on the PIC18F4550 USB Diagnos ...

so i took another look at my code and i realized the CCPMP.C never sets any tris bits probably because of the pic chips that they use dont need to worry about that. I use a 4550 which has two lines f ...

so here is the thing I got everything working for the CCPMP.c example, but this week things started going wrong. so i tried changing the isr code to only using one capture line. the problem here is ...

this is how my pic is setup

#include <18F4550.h>
#define ICD = TRUE
#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN
#use delay(clock=48000000)
#use rs232(baud=9600, ...

Describe the input signal in detail:
1. What device is producing the signal ? frequency generator
2. Is it an analog or digital signal ? 60hz square wave with 5Vpp
3. Describe the waveform. Freque ...

Can I use the same signal for CPP1 and CPP2 where CCP1 is set up for rising edge and CCP2 is setup for falling edge? I used the CCPMP.c example to do this but it didn't work.

I am using the following setup

setup_ccp1(CCP_CAPTURE_RE); // Configure CCP1 to capture rise
setup_timer_1(T1_INTERNAL|T1_DIV_BY_4); // Start timer 1

enable_interrupts(INT_CCP1); ...

i did the following and everything worked fine for fast mode

Vusb connected to D+ with a 1.5k resistor.
.1uf capacitor from Vusb to ground

This may help on the hardware end.

So this is what my code looks like now

#include <18F4550.h>
#device ICD = TRUE
#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN
#use delay(clock=48000000)
#use rs232 ...

I am using the EX_CCPMP.C example to get the delay of a 60Hz square wave from falling edge to rising edge. I have the following setup in my code.

#include <18F4550.h>
#device ICD = TRUE
...

I have seen various sample code for the 18F2550. it looks to me that a 20MHz external clock can give you a 48MHz clock with the following code

#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL ...