On Mon, Apr 14, 2008 at 07:10:11PM +0100, Andy Green wrote: > | At least in GTA01/02, the issue is also that the CPU has to receive > | things on the UART, so almost no dead time is allowed. This may be > | similar also in GTA04, just with protocols that aren't quite as easy to > | handle as UART (which the MPU could do just fine, of course). > > I'm not sure this is the case. When I asked Erin and Sean Chiang about > this they made it sound like the CPU is polling for status, not waiting > for async response. And that fits what I understood about the +++AT > - -based command set of these things. In that case, we are just > periodically waking and polling from CPU and there is no issue.
please dont' try to design hardware fixes for something that sounds like a software design or implementaiton problem (polling an UART for data) -- - Harald Welte <[EMAIL PROTECTED]> http://openmoko.org/ ============================================================================ Software for the world's first truly open Free Software mobile phone
