Re: [microblaze-uclinux] "Found romfs @... klimit" message during kernel boot

[Michal Simek <michal.simek@xxxxxxxxxxxxx>]

Victor G. wrote:
>>> In the meanwhile, in my __log_buf I saw "ttyUL0 at MMIO 0x84000000
>>> (irq = 2) is a uartlite". However, I am using /dev/ttyS0. Is it the
>>> same thing?
>> No. you should use console=ttyUL0,115200 for example.
>> You should see ttyUL0 in /etc/inittab as well.
>> Uartlite use ttyUL0, uart16550 use ttyS0.
> 
> I am using /dev/ttyS0 for kermit connection. For example, my ~/.kermrc
> looks like:
> set line /dev/ttyS0
> set speed 115200
> ...etc
> 
> Can I conclude that for kermit it is ttyS0 device that needs to be
> specified as the connection line AND the kernel should output to
> console=ttyUL0,115200? It looks as this is what I currently have for
> both, the kermit and kernel. The former outputs "ttyUL0 at MMIO
> 0x84000000 (irq = 2) is a uartlite" to __log_buf, so I assume it is
> doing the right thing.


Serial cable connects two devices - your fpga board and your pc.
Your fpga(PetaLinux setting): uartlite -> ttyUL0, uart16550 -> ttyS0
your pc(kermit setting): I have serial port -> for my case ttyS0
     you have adapter ttyUSB0?

I don't have any experience with USB adapter but I expect that you have to setup
kermit to device which create your USB adapter. /dev/ttyUSB0? Look at dmesg.

Michal


> 
>> USB adapter shouldn't be a problem but I don't have/use it.
>>
>> Anyway how many people use USB/serial reduction?
> I used it all the time for connection with my laptop that does not
> have a serial connector. It uses FTDI chip.



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-- 
Michal Simek, Ing. (M.Eng)
PetaLogix - Linux Solutions for a Reconfigurable World
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