On Thu, Jan 10, 2013 at 11:33 PM, Heiko Besemann heiko@noordsee.de wrote:
Hello Alex,
You should send mail to the mailing list, instead of specific individuals. This way, i) you may get a responder quicker, and ii) information can reach other interested people.
I read on Osmocom-BB mailing-list that you are using a GTA02 with cross-compiled tools. Well, I did cross-compiling of the sylvain/burst_ind branch for the OpenMoko, but starting osmocon I get an error that the higher non-standard baudrate can not be set to /dev/ttySAC0.
On the GTA02 the calypso is wired to one internal UART of the application processor SoC. AFAIR the SoC only supports up to 115200 bps so it won't be usable with burst_ind.
Cheers, Alex
Hi all,
On Fri, Jan 11, 2013 at 11:31:28AM +0200, Alex Badea wrote:
On the GTA02 the calypso is wired to one internal UART of the application processor SoC. AFAIR the SoC only supports up to 115200 bps so it won't be usable with burst_ind.
1) the IRDA UART is wired to the 2.5mm headset plug, so _if_ the IRDA UART supports higher baudrates, you can simply output the samples there.
2) The s3c2440 user manual provides at full reference on the UART of the application processor. If you're willing to re-configure some of the internal PLLs, then you can achieve baud rates up to 921.6kbps. So I'm quite sure using the s3c2440 manual you can compute a PCLK suitable for the non-standard high baudrate of burst_ind, and then compute PLL parameters for ensuring the s3c2440 PLL generates that PCLK.
Regards, Harald
Hi,
On Fri, 11 Jan 2013 13:01:08 +0100 Harald Welte laforge@gnumonks.org wrote:
- The s3c2440 user manual provides at full reference on the UART of
the application processor. If you're willing to re-configure some of the internal PLLs, then you can achieve baud rates up to 921.6kbps. So I'm quite sure using the s3c2440 manual you can compute a PCLK suitable for the non-standard high baudrate of burst_ind, and then compute PLL parameters for ensuring the s3c2440 PLL generates that PCLK.
http://lists.infradead.org/pipermail/linux-arm-kernel/2012-February/083151.h...
Note that it probably didn't go into mainline according to the comments of this patch.
Also do higer baudrates require an external clock(I didn't check in the SC32442B datasheet)? (and I guess the GTA02 has an internal clock,but I didn't check myself on the schematics).
Denis.
baseband-devel@lists.osmocom.org
-
Alex Badea -
Denis 'GNUtoo' Carikli -
Harald Welte