there is an it8712f com1 on this board I have. superiotool says this: LDN 0x01 (COM1) idx 30 60 61 70 f0 f1 f2 f3 val 01 03 f8 04 00 50 00 7f def 00 03 f8 04 00 50 00 7f
linux says this: serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:05: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A setserial says this: sudo setserial /dev/ttyS0 [sudo] password for rminnich: /dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
minicom is happy. I just can't talk to it. I figure I ought to be able to short pins 2,3 and at least get loopback. No good.
Connection is to a 10 pin header on the board. I've got nice clips shorting things together on that header and ... no good.
My mental toolbox is running empty. Any ideas? Is this chip so benighted that it actually demands modem control signals (null modem is somewhere else but I guess I can start twisting wires together).
Anybody got a handy dandy 'short wires logically' program lying around? I am running out of time ....
ron
ron minnich wrote:
there is an it8712f com1 on this board I have. superiotool says this: LDN 0x01 (COM1) idx 30 60 61 70 f0 f1 f2 f3 val 01 03 f8 04 00 50 00 7f def 00 03 f8 04 00 50 00 7f
linux says this: serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:05: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A setserial says this: sudo setserial /dev/ttyS0 [sudo] password for rminnich: /dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
minicom is happy. I just can't talk to it. I figure I ought to be able to short pins 2,3 and at least get loopback. No good.
Check that minicom is set up for no flow control. Also check if you get interrupts when sending some keystrokes across the loopback.
Connection is to a 10 pin header on the board. I've got nice clips shorting things together on that header and ... no good.
Should work.
My mental toolbox is running empty. Any ideas? Is this chip so benighted that it actually demands modem control signals (null modem is somewhere else but I guess I can start twisting wires together).
Shouldn't be needed, unless flow control is enabled..
Anybody got a handy dandy 'short wires logically' program lying around? I am running out of time ....
What would that program do? Sorry, don't understand.
//Peter
On Sun, Oct 12, 2008 at 10:49 AM, Peter Stuge peter@stuge.se wrote:
What would that program do? Sorry, don't understand.
Sometimes on some chips you can force loopback on modem signals ... I'm just running out of ideas.
ron
ron minnich wrote:
there is an it8712f com1 on this board I have.
..
minicom is happy. I just can't talk to it.
Oh wait - it doesn't work when booting with a BIOS either?
Never mind the PCI register I just mentioned here then; http://www.coreboot.org/pipermail/coreboot/2008-October/040161.html
//Peter
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Peter Stuge -
ron minnich