ARM Board SW Setup

Roberro Giudici
Hello,

I just bought a new ARM 2440 mini board.

The DNW program seems to be very basic !!

USB globally works.
Ethernet works fine.
RS232 recives correctly on the Hyperterminal the echo of ARM bootstrap,
but at soon at is stops to ask to click Return, my Pc doesn not do it.
Appearentyl RS232 does not send messages.
The title bar of DNW is  COM:x USB:OK.

As I try to send programs to the ARM board 
DNW -> USBPort -> Transmit
The Download process never starts.
Is there nything I m missing out of the procedure ?
Is there any parameter I have to set up in the ARM board ?
Thanks if you could help solve my Distress.

Hope this Thread will help new Users !!

Rob

Stephan Watterott
Did you checked the Configuration from your serial port (COM1...COM4?
Do you use a USB-Seriel Bridge or a real COM port?

cledic
Hello Rob,
if the title bar is "COM:X" you must "Connect" the
"Serial Port" to the fisical port. 
Under the "Serial Port" menu, select "Connect". The
title bar must change to "COM:115000..."

I'm using DNW to send new rootfs or kernel images to the board. 

To do that you must power the board off, set the NOR switch to on, power
the board on. In this situation, using the supervivi menu, you can be able
to send kernel and rootfs images.

Clemente.

Ayhan Yanarsoy
Hello, 

I had the same problem and noticed that the male serial port connector
has
got pin 2 as TxD and pin 3 for RxD. Male serial port connectors in PC
have
pin 2 as RxD and pin 3 as TxD. So I had to replace my cross-connection
cable with a one to one direct-connection cable. It works now.

I hope this helps you solve your problem.

Ayhan.

Sie
I'd say you forgot to enter 'd' at the serial prompt to get the board into
the right mode before sending from the DNW tool.

You must:

1. Connect a serial terminal at 115Kb/s
2. Boot the board in NOR mode
3. Press 'd' in the serial terminal to put the board into download mode.
4. Send the dile from dnw.

The program should download and run automatically then.

Regards,
Sie

george
I  power the board off, set the NOR switch to on, power
the board on , I can see the supervivi menu on Hyperterminal .As I do not
have real com port so I use the usb to serial ic and us the COM:4 . The
title bar of DNW is  COM:x USB:OK , select the "connect" ,the COM 4:115200
DO NOT exits !! Can someone help me solve this problems !!!!

Stephan Watterott
You can change the COM port settings for your USB to serial converter in
the hardware configuration from Windows.

Chris Jones
As Stephan said, go into device manager, locate the USB-Serial under Ports
(COM & LPT), right click and select properties, click Advanced under the
Port Settings tab, then hopefully at the bottom left of the new page you'll
have a Com Port Number dropdown, select a free one (betwen 1 and 4) in
there.

Ideally reboot after making the change.

PL230x and CP210x chipsets certainly have this capability in their driver,
USB-CDC implementations may not.

Its also worth noting that I've had serial cables supplied with mini2440's
which work one way round, but not the other, that said, you're getting
output from the board to the PC so thats a good sign.

sameer nalawade
Hello,

"Its also worth noting that I've had serial cables supplied with mini2440's
which work one way round, but not the other, that said, you're getting
output from the board to the PC so thats a good sign."
   
I have also noticed that serial port works in the one direction only. So
anybody found out how to make it work both ways? Do i need to get new
serial cables or any other changes i need to do?

When i use gtkterm i can send data from mini2440 to PC but not the other
way round.

When I am using other serial devices like thermal printer with mini2440
there is no communication. 

Please suggest what could be the problem with serial communication.