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no serial data when first using dev kit
Added by Mike Costa about 13 years ago
Hi,
I am just starting to get my Dev kit up and running with the L138f Module. I am used to the Embedded Linux dev environment, and was under the impression that I should be able to get a Bootloader running right out of the box over RS232. But I am having a very basic problem where I am not getting any data out of the serial port.
I guess my fist question is if J502 is the default RS232 port?
Am I to connect the packaged DB9 ribbon cable to J502 to get a terminal?
Does the device boot up with a default IP address that I can try to access via ssh?
I tried holding to BOOT button and pressing reset and am not getting any output. I also tried multiple serial ports on my machine.
My comm port is set to 115200 no flow control, no parity 1 stop bit
serial number is 110790
thanks,
Mike
Replies (3)
RE: no serial data when first using dev kit - Added by Gregory Gluszek about 13 years ago
Hi Mike,
J502 is the default RS232 port and the ribbon cable is meant to be used on this port for RS232 communication.
My guess is that you are not using a Null Modem cable and that is the reason you see nothing over RS232. Let us know if this is not the case.
As far as an IP address the device should boot up using DHCP.
\Greg
RE: no serial data when first using dev kit - Added by Mike Costa about 13 years ago
Hi Greg,
That was it! I did not use the cable supplied because I always have serial cables connected to my computer.
On that note, the DVD should really have a simple getting started pdf explaining things such as the null modem cable. The only reason I knew to start using the serial port is out of experience.
Thanks,
Mike
RE: no serial data when first using dev kit - Added by Thomas Catalino about 13 years ago
Mike -
Glad you are up and running. Good point about the out of box experience.
Thanks,
Tom
