6 replies to this topic

[bane]

Hi, netduino community, I got a netduino plus board and I have some problems. I removed .NETMF from netduino because i want to use IAR compiler ( C language ) to generate .bin file which i download on the board using SAM-BA. And there is a problem. I try to make my led blinking, but it doesn't work. When i rebuild my project, compiler don't report any errors. I used at91sam7x-ek example, which I modify because of LED on different pin. Can I even use IAR compiler or i need to exactly use .NETMF ? Can anyone help me, please?

[Chris Walker]

Hi bane, You can certainly erase your Netduino and deploy native firmware. IAR should work fine. What pin # are you trying to use to illuminate the LED? Chris

[bane]

Hi bane,

You can certainly erase your Netduino and deploy native firmware. IAR should work fine. What pin # are you trying to use to illuminate the LED?

Chris

Hi Chris,

Well, I use pin PB23 to illuminate the LED. In attachment there is SAM-BA window, which I used for downloading of .bin file.
After downloading of .bin file i reconnect cable, but my led still doesn't blinking.

Bane

Attached Files

•  SAM-BA after download .bin file.png   238.68KB   23 downloads

[CW2]

After downloading of .bin file i reconnect cable, but my led still doesn't blinking.

Have you executed "Boot from Flash (GPNVM2)" script (the 'Execute' button)? You need to set GPNVM2 bit to boot from flash, otherwise the board boots from ROM and SAM-BA is being executed again.

[bane]

Hi CW2, Yes, i haven't executed GPNVM2 script, so this was main problem why my led wasn't blinking. Thanks a lot. But now after this it happend something strange. After executed GPNVM2 script everything work fine ( my led is blinking ) but when i reconnect cable i recive message: USB Device Not Recognized and in Device Manager/Ports i can't see any more AT91 USB to serial Converter. My LED is still blinking and work fine but my computer do not recognize netduino attached to computer. Is this normal? In attachment there is error message i recive when reconnect cable. Bane

Attached Files

•  error message.JPG   21.05KB   11 downloads
•  same error message.JPG   32.63KB   13 downloads

[CW2]

USB Device Not Recognized and in Device Manager/Ports i can't see any more AT91 USB to serial Converter. My LED is still blinking and work fine but my computer do not recognize netduino attached to computer. Is this normal?

Yes, this is normal - you'd need to either implement a USB device in your code (e.g. use one of USB sample projects from the AT91SAM7X-EK software package), or perform full erase so the board boots to SAM-BA, which enumerates as USB virtual serial port. In neither case the board will be detected as Netduino, you'd have to flash the Netduino firmware for that.

[Geancarlo]

That's normal..if you erase it again Windows and SAM-BA will detect it as usual.