No message on the minicom using (serial port)

jadonk / beagleboard

Automatically exported from code.google.com/p/beagleboard

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No message on the minicom using (serial port) #107

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago

CONTEXT :
--> SD-CARD contains MLO, uboot.
--> minicom /dev/ttyS0 115200
--> LEDs are on (on beagleboard xM)

PROBLEM MANIFEST:
--> No msg on minicom
--> dmesg on host shows:
[  850.935098] serial8250: too much work for irq4

ADDITIONAL INFOS:
--> using serialstat : no activity shown (guess serial considered stuck).

Original issue reported on code.google.com by mohamet....@gmail.com on 3 Dec 2011 at 2:55

GoogleCodeExporter commented 9 years ago

Problem related to linux:
Solution --> in  linux/drivers/char/8250.c modify the PASS_LIMIT to an upper 
value or get an UsbSerialAdapter.

Original comment by mohamet....@gmail.com on 3 Dec 2011 at 1:47