Hello Harald and Lukas,
In my opinion regarding non-standard speed, PL2303 based cable should never succeed to load code into calypso ram... The wiki says that for some branch and/or firmwares it works, I don't understand how it can happen.
btw with my pl2303 cable what branch / firmware do i have to use for loading a GSM layer1 into my C123... with succeed?
Ps. I bought a RS232 / Jack adaptator. I wait for it... (I already have a FTDI RS232 / USB cable) - If i have a little time I can braze a jack on the RS232 as explained on the wiki
Sorry for my late answer and thank you both for your help. I didn't had time to work on my problem :( (right now I have trouble with my soft raid 10 in dual boot who drives me crazy!)
Le 29/08/2011 09:23, Harald Welte a écrit :
On Mon, Aug 29, 2011 at 01:55:59AM +0200, Lukas Kuzmiak wrote:
If I'm not mistaken pl2303 based cables have/had problems handling baudrates above 115200, there was a recent update into the kernel tree, but I've never tested it.
the problem is not "[standard] baud rates above 115200" but it is "non-standard baud-rates at all". Normal USARTs have baud-rate generators that can only generate baud-rates "input_clock / divider" where divider is either an integer, or even more: limited to a power of 2
The calypso cannot do any standard baud-rates above 115200. That's why you need a USART with more flexible baud rate generator. The most commonly known one to do this is the FTDI series of USB-serial converters.