Wiznet5100 ethernet shield on nRF52840

[ToasTer86]

Dear Nordic Devzone,

I want to run an Arduino Ethernet Shield with the Wiznet5100 on the nRF52840. I was wondering if there was an easier way to do this then having to rewrite the SPI code by myself.

www.arduino.cc/.../ArduinoEthernetShieldV1

Currently I am using the Keil IAR /uVision to compile my code and can easily compile and run all the examples included. I am just a bit lost on how to use the ethernet shield with the nRF52840.

I thought I would be able to use some Arduino library to easily get it working.

Any help or direction in which to start would be much appreciated.

ToasTer

[ToasTer86]

Was able to verify my data with the logic analyzer, after doing some study in the Wiznet5100 datasheet I found an important detail I forgot. Wiz5100 does not communicate on SPI mode 3 but only mode 0. So after changing that I got my ethernet working and was able to ping the Wiznet 5100.

[Sigurd]

Great to hear that the issue is solved :)

[Amigo]

i connected W5100 shield to nrf52832 sev board. Here is my sources you can try. W5100.rar NRF5x_SPI.c NRF5x_SPI.h mian code:

#include "NRF5x_SPI.h"
#include "w5100.h"
#include "socket.h"
#include "tcpclient.h"

W5100_CFG my_cfg = {
{0x8A, 0x26, 0xF4, 0x1A, 0xD0, 0x93},		// MAC address
{192, 168, 1, 3},						// IP address
{255, 255, 255, 0},							// Subnet mask
{192, 168, 1, 1},							// Gateway

{192, 168, 1, 127},// Dest iP
SOCKET_PORT // Dest port};

extern uint8_t destip[4];
extern uint16_t destport;
extern uint8_t data_buf_rx[255];
extern uint8_t data_buf_tx[255];
uint8_t ip[4];
uint8_t sn[4];
uint8_t gw[4];
uint8_t mac[6];
uint8_t mode = 1; //0 - DHCP, 1 - no DHCP
uint8_t my_socket = 0;
uint8_t err;
uint8_t tcpdata[] = {0x01, 0x02, 0x03, 0x0A, 0x6B, 0x0C};
uint8_t counter = 0; 

int main(void)
{
....
SPI_Init();
ethernet_config();
    ...
}

void ethernet_config(void)
{
Serial_Print((uint8_t*)"\r\nConfig static IP mode...\r\n");

iinchip_init();
nrf_delay_ms(1000);
sysinit(1, 1);
nrf_delay_ms(1000);

setSIPR(my_cfg.ip_addr);
setGAR( my_cfg.gtw_addr);
setSUBR(my_cfg.sub_mask);
setSHAR(my_cfg.mac_addr);
nrf_delay_ms(100);

getSIPR(ip);
getSUBR(sn);
getGAR(gw);
getSHAR(mac);

memcpy(destip, my_cfg.remip, 4);
destport = my_cfg.remport;

sprintf(debug_str, "\r\nMY IP: %d.%d.%d.%d\r\n", ip[0], ip[1], ip[2], ip[3]);
Serial_Print((uint8_t*)debug_str);

sprintf(debug_str, "SUB NET: %d.%d.%d.%d\r\n", sn[0], sn[1], sn[2], sn[3]);
Serial_Print((uint8_t*)debug_str);

sprintf(debug_str, "GW: %d.%d.%d.%d\r\n", gw[0], gw[1], gw[2], gw[3]);
Serial_Print((uint8_t*)debug_str);

sprintf(debug_str, "MAC: %2X:%2X:%2X:%2X:%2X:%2X\r\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
Serial_Print((uint8_t*)debug_str);	

Serial_Print((uint8_t*)"\r\nW5100 configured!\r\n");

}

[ToasTer86]

Hey thanks for the response, I have been working on this the last few weeks. Got DHCP and DNS working, and got the application layer (HTTP post&get) working last week.

One thing I noticed with that when using socket 3, I can't send and receive data correctly. Have you had any problems with this?

Thanks for any response, will take a look at your code.

ToasTer

[ToasTer86]

I checked out the code, did you make any alterations in "socket.c / dhcp.c "? Thanks in advance