On Wed, Feb 19, 2003 at 11:36:38PM +0100, Holger Waechtler wrote: > Hi everybody, > > good news: finally the components and PCBs are arrived and we built a > first prototype of the FX2 based USB2.0 DVB Receiver. > > The DC/DC converters are working stable at input voltages between > ~7...~12V. We uploaded and started a simple firmware to the FX2 (which > just start some disco on the onboard LEDs) without troubles. Johannes' > firmware source skeleton in CVS is not yet working, after servicing the > first USB interrupt it hangs.
Any chance you're not re-arming the endpoint properly? This happened to me already when programming my ezusb chip. If you can send me the firmware and downloaded I can try it on my FX2 devel board. > So the board is basically working and now > we can start to write+debug firmware and kernel driver and watch out for > remaining hardware bugs. > > We had to apply the following patches in order to get it working: on all > 3 LT1940s the VC1 and VC2 error amp outputs pins were accidentally > connected to the POWERUP signal instead to a compensation R/C network. > We had to insert this network manually. > > The pads for the FX2 are a tick too narrow, for our board the FX2 pins > have been bended a little to fit better on the PCB pads. > > I'll fix these issues in the schematic and PCB files on > http://linuxtv.org/cgi-bin/cvsweb.cgi/dvb-hw/ as soon I find some time > to do it... > > Next we'll work on the firmware to get the irq problem fixed and write a > i2c driver in the firmware so that we can talk to EEPROM and tuner. I already have interrupt-based i2c communication working for (non-fx2) ezusb. If that'd be of any help ... -- Vojtech Pavlik SuSE Labs -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
