5 replies to this topic

[baxter]

I downloaded mip0.3, but when deploying to a Netduino Mini (latest 4.2 firmware) I am having problems. Specifically, in ENC28J60Driver_MC.cs,

A first chance exception of type 'System.ArgumentException' occurred in Microsoft.SPOT.Hardware.dll
An unhandled exception of type 'System.ArgumentException' occurred in Microsoft.SPOT.Hardware.dll
 
 Uncaught exception

at,

public ENC28J60Driver(Cpu.Pin irqPin, Cpu.Pin csPin, SPI.SPI_module spiModule)
{
EXCEPTION --> irq = new InterruptPort(irqPin, true, Port.ResistorMode.PullDown, Port.InterruptMode.InterruptEdgeLevelLow
 
I am using,
 
case InterfaceProfile.NetduinoMini_ENC28:
//GPIO_PIN_5 = 59 and GPIO_PIN_7 = 61 
Start(MacAddress, name, SPI.SPI_module.SPI1, (Cpu.Pin)59, (Cpu.Pin)61); //Interrupt, /CS and Locals reports: irqPin = 59 and csPin = 61. 

I know that the ENC28J60 is hooked up correctly because the the driver posted by hanzibal runs just fine with this pin configuration and produces output such as this,

################################ Program.Main[06/01/2011 00:51:33] --> Received frame data of length 148
 ENC28j60[06/01/2011 00:51:35] --> IRQ occurred
 ENC28j60[06/01/2011 00:51:35] --> IRQ_PKT: frame(s) arrived

mIP0.3 deploys and starts execution with out any errors. Any ideas about what is wrong?

Baxter

[NooM]

its the pulldown, mini only supports pullup. //edit i also remember someone having problems with edgeLEVEL, maybe just use edge low

[baxter]

Thanks NooM, Changed Port.ResistorMode to Port.ResistorMode.Disabled and it now compiles and runs with output, Setting IP Address to 192.168.0.40 WARNING! Time out while waiting for Gateway to Respond to ARP request I think I need to check the ENC28J60 datasheet and use an external pullup on the IRQ line, but it is at least a start to getting mIP0.3 to work ... Baxter

[NooM]

external pulldown you mean. pullup you can do internally, but since its pulldown in code

[baxter]

Yes ... I Also made a stupid mistake. I had the ENC28J60 reset line plugged into the Mini, however, it is not used in the code.
Fixing this, setting a static IP and with your tip, I was able to get the web server example running. Debug output initially shows

Setting IP Address to 192.168.0.40
Link is now up
WARNING! Time out while waiting for Gateway to Respond to ARP request
Updating Gateway Mac from ARP
Dropping 0 packet(s)
Packet Count is3: 0
1*** ERXRDPT: 0
1*** ERXWRPT: 210
2*** ERXRDPT: 0
2*** ERXWRPT: 210
Packet Count is4: 0
Packet Count is5: 0

I can ping the Mini with its IP address or its name, "mip". It also shows up in the arp table. Putting http://mip in the
browser brings up the default web page. The ping seems dreadfully slow at 58ms. The ENC datasheet recommends level
shifting 3.3V to 5V between the ENC SO and /INT pins and the MCU which I haven't implemented; a possible cause of the
spurious debug output. This managed TCP/IP Stack is a remarkable achievement by Valkyrie-MT.

Baxter

[NooM]

thats good news! i also plan to add a enc module to my mini.