pic18f4620 and enc28j60 don't get ip and no output on serial

[OpenSys]

Hello,

I just compile ex_st_webserver.c tcp/ip example and program the 18f4620, then tested with my enc28j60 module, but I don't get any ip by dhcp.
I reread the pic data and is there.
I tested the ethernet with sniffer and no data was sent, seems that the pic is dead.
I use a 10MHz external crystal, I check the voltages of pic, enc and 74hc125, is all fine.
From serial port at 9600 I don't get any data also. What could be wrong ?
If I connect the pic without any lcd, or enc28j60 could I get any data from serial?

Please help me, to move on.

Thank you.

VS

[OpenSys]

simple serial code loop like this don't work:

#include <18f4620.h>
#use delay(clock=40000000)
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8)

#fuses MCLR
#fuses NOPROTECT
#fuses INTRC_IO
#fuses NOWDT
#fuses NOPUT
#fuses NOLVP
#fuses NOBROWNOUT
#fuses NOCPD
#fuses WRT
#fuses NOWRTD
#fuses NOEBTR
#fuses NOCPB
#fuses NOEBTRB
#fuses WRTB


void main(void)
{
while (TRUE) {
DELAY_MS(100);
printf("ok 123\r\n");
}

}

[Rocket]

If you want to work at 40Mhz, you need a 10Mhz Xtal and the fuse statement "#fuses INTRC_IO" replaced with "
#FUSES H4 //High speed osc with HW enabled 4X PLL
_________________
J.I.L.

[bkamen]

[OpenSys]

yes I miss the #FUSES H4 :( serial is working, so programmer is ok, and connections also ok.

So i programmer again the example code.
I found that is dhcp that is the problem, he is unable the send any udp packet to network, so i put with static ip address and was worked!

to dhpc i need this:

#define STACK_USE_DHCP TRUE
#define STACK_USE_UDP TRUE
#define STACK_USE_ARP TRUE

in main:


MACAddrInit();
// IPAddrInit();

MACInit();


init_user_io();

StackInit();

while(TRUE) {
StackTask();

}


is correct ?

thank for all your help.

VS

[bkamen]

I've used the DHCP feature before and found it to work fairly well.

The question I have for you is:

What is providing your DHCP service?

-Ben
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D

[OpenSys]

[OpenSys]

hello again,

After a while working, pic makes resets. I found that if remove the 74hc125 the resets stops so may have some problems with enc28j60 ?
The enc28j60 init's ok, the lead blink ok.
seams to be from enc28j60 (SO) to pin23 pic18f4620 that i get the loop.
What tests can I do more?

VS

[OpenSys]

[OpenSys]

I found something interesting i have a web server on pic, if i activate it with
#define STACK_USE_HTTP 1

the dhcp don't work, and freeze the pic if is:

#define STACK_USE_HTTP 0

dhcp works fine.

the http code is simple like the example.

What could be the problem ?

found something more, dhcp use udp so if:

#define STACK_USE_UDP 1

pic freeze, so something with http and udp.


found more things....

the problem is the STACK_USE_HTTP 1

if web server is activated lcd don't work and dhcp the same way.

if webserver is disabled all things works fine.

[OpenSys]

found it, it seams that is the rom of the pic, if pass over 50% occupied, pic freeze....


i will open a new post