GTA02 Burst_ind baudrate

Harald Welte laforge at
Fri Jan 11 12:01:08 UTC 2013

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

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


- Harald Welte <laforge at> 
"Privacy in residential applications is a desirable marketing option."
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