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a3ka2000
Joined: 26 Feb 2010
Posts: 11
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| help with CCS TCP/IP stack tutorial |
 Posted: Sun Mar 07, 2010 11:14 pm |
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Dear friends,
I want to use CCS version of TCP/IP stack from Microchip. Now I'm using a new prototype board of my own with simply involves dsPIC30F6014 and stand alone ethernet controller ECN28J60. The circuit is attached below:
I again followed ethernet development exercise book (tutorial) from CCS, starting from MAC address, i.e. with filename "ex7a.c". The code is following the tutorial, and can be seen below:
| Code: |
#include "ccstcpip.h"
void MACDisplayHeader(MAC_ADDR *mac, int8 type) {
int8 i;
printf("\r\nMAC: ");
for (i=0;i<6;i++) {
printf("%X", mac->v[i]);
if (i!=5)
putc(':');
}
printf(" ANAN:0x08%X ",type);
if (type==MAC_IP)
printf("[IP]");
else if (type==MAC_ARP)
printf("[ARP]");
}
void main(void) {
MAC_ADDR mac;
int8 type, i = 0;
printf("\r\n\nCCS TCP/IP TUTORIAL 7A\r\n");
output_high(PIN_D7);
MACInit();
while(i<5) {
if (MACGetHeader(&mac, &type)) {
if (type!=MAC_UNKNOWN) {
MACDisplayHeader(&mac, type);
}
}
i++;
}
} |
This is the ccstcpip header code
| Code: | #define STACK_USE_CCS_PICENS 1
#define STACK_USE_CCS_PICNET 0
#define STACK_USE_CCS_PICEEC 0 //TODO
#if STACK_USE_CCS_PICENS
#define STACK_USE_MCPENC 1
#endif
#if STACK_USE_CCS_PICEEC
#define STACK_USE_MCPINC 1
#endif
#if STACK_USE_CCS_PICENS
#include <30F6014A.h>
#use delay(clock = 10000000, xtal) //define clock freq and type
#use rs232(baud = 9600, xmit = PIN_F3, rcv = PIN_F2)
#define (icd = true) //allow icd debugging?
#else
#error You need to define your custom hardware
#endif
#include "drivers/stacktsk.c" //include Microchip TCP/IP Stack
void MACAddrInit(void) {
MY_MAC_BYTE1=1;
MY_MAC_BYTE2=2;
MY_MAC_BYTE3=3;
MY_MAC_BYTE4=4;
MY_MAC_BYTE5=5;
MY_MAC_BYTE6=6;
}
void IPAddrInit(void) {
//IP address of this unit
MY_IP_BYTE1=192;
MY_IP_BYTE2=168;
MY_IP_BYTE3=100;
MY_IP_BYTE4=7;
//network gateway
MY_GATE_BYTE1=192;
MY_GATE_BYTE2=168;
MY_GATE_BYTE3=100;
MY_GATE_BYTE4=1;
//subnet mask
MY_MASK_BYTE1=255;
MY_MASK_BYTE2=255;
MY_MASK_BYTE3=255;
MY_MASK_BYTE4=0;
}
char ExampleIPDatagram[] = {
0x45, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00,
0x64, 0x11, 0x2A, 0x9D, 0x0A, 0x0B, 0x0C, 0x0D,
0x0A, 0x0B, 0x0C, 0x0E
};
char ExampleUDPPacket[] = {
0x04, 0x00, 0x04, 0x01, 0x00, 0x08, 0x00, 0x00,
0x01, 0x02, 0x03, 0x04
};
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After I compiled and programmed using PCD 4.057 (no error!), I connect the board to the network switch and from there to the PC using straight cables. After I reset the board, there's no answer at all to the HyperTerminal!! Only "CCS TCP/IP TUTORIAL 7A" and one LED lit up by output_high command!! :( 
There is something wrong with the ethernet/SPI interface? I probably misunderstood the code wrongly. Which variable to define my board MAC address?
thank you
warm wishes |
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dezso
Joined: 04 Mar 2010
Posts: 102
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| Posted: Mon Mar 08, 2010 10:02 am |
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| Code: | void MACAddrInit(void) {
MY_MAC_BYTE1=1;
MY_MAC_BYTE2=2;
MY_MAC_BYTE3=3;
MY_MAC_BYTE4=4;
MY_MAC_BYTE5=5;
MY_MAC_BYTE6=6;
} |
your mac here is 01:02:03:04:05:06
I believe this is a valid mac address.
most are look like this 00:23:AF:3C:F2:01
http://en.wikipedia.org/wiki/MAC_address
Your gateway is the same as your TCP/IP setting on your PC/Router gateway address ? 192.168.100.1 this again not the default for any router, 192.168.1.1 are the most common.
I have used ETH to RS232 module but newer compiled any code for my own TCP/IP device.
Hope you can get this working, I'm interested hows its goes, have a few 2860 chip here, maybe I can follow your development. |
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a3ka2000
Joined: 26 Feb 2010
Posts: 11
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| Posted: Mon Mar 08, 2010 8:49 pm |
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| dezso wrote: | | Code: | void MACAddrInit(void) {
MY_MAC_BYTE1=1;
MY_MAC_BYTE2=2;
MY_MAC_BYTE3=3;
MY_MAC_BYTE4=4;
MY_MAC_BYTE5=5;
MY_MAC_BYTE6=6;
} |
your mac here is 01:02:03:04:05:06
I believe this is a valid mac address.
most are look like this 00:23:AF:3C:F2:01
http://en.wikipedia.org/wiki/MAC_address
Your gateway is the same as your TCP/IP setting on your PC/Router gateway address ? 192.168.100.1 this again not the default for any router, 192.168.1.1 are the most common.
I have used ETH to RS232 module but newer compiled any code for my own TCP/IP device.
Hope you can get this working, I'm interested hows its goes, have a few 2860 chip here, maybe I can follow your development. |
Hmm... The address actually follow the example (tutorial). By right, it should be working fine.  |
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dezso
Joined: 04 Mar 2010
Posts: 102
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| Posted: Mon Mar 08, 2010 10:45 pm |
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If your gateway address is 192.168.1.1 than you have to set your ccstcpip header code to use this gateway !
I'm not expert on TCP/IP, but almost sure if your gateway is set to 192.168.100.1 then your code will be trying to send the request to the wrong address. Not sure if I making it clear or not, just change your gateway in your code for the same one as in your PC TCP/IP setting.
If the hardware is right and the rest of the code functions the way it's supposed to be it should work.
| Quote: |
I connect the board to the network switch and from there to the PC using straight cables
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You got the link/activity light "on" on your switch ?
Check your PC TCP/IP setting "ipconfig"
| Code: |
IPv4 Address. . . . . . . . . . . : 192.168.1.2
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
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monsters_inc
Joined: 18 Jan 2010
Posts: 14
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| Posted: Wed Mar 10, 2010 1:55 pm |
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| Hi. When I use mac 01:02:03:04:05:06 with "ex_st_webserver.c" and dhcp enabled it can't get IP. When I change mac to 00:02:03:04:05:06 dhcp works fine. |
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dezso
Joined: 04 Mar 2010
Posts: 102
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| Posted: Wed Mar 10, 2010 9:26 pm |
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| Quote: | | If the least significant bit of the most significant byte is set to a 0, the packet is meant to reach only one receiving NIC. This is called unicast. If the least significant bit of the most significant byte is set to a 1, the packet is meant to be sent only once but still reach several NICs. This is called multicast |
From wiki
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bkamen
Joined: 07 Jan 2004
Posts: 1615
Location: Central Illinois, USA
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| Posted: Thu Mar 11, 2010 11:19 pm |
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| monsters_inc wrote: | | Hi. When I use mac 01:02:03:04:05:06 with "ex_st_webserver.c" and dhcp enabled it can't get IP. When I change mac to 00:02:03:04:05:06 dhcp works fine. |
Either MAC should work fine.
I've used a wide variety of MAC addy's to play around or even assign a constant DHCP address..
Look on your DHCP server or with wireshark to see why.
-Ben
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D |
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a3ka2000
Joined: 26 Feb 2010
Posts: 11
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| Posted: Sun Mar 14, 2010 7:26 pm |
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Hmm... talking about my original problem, I found the root-cause to be the SPI hardware function. I'm using SPI-2 port (pin G6, G7, G8 for dsPIC30F6014).
Apparently when I used setup_spi2 and spi_read2, etc., it didn't show any pulse activities. If I change back to SPI-1 port, I shows activities. Not sure why? I don't find any conflict on the codes.
I will continue to the next tutorial.... Let's see how.
thanks |
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