Hello everybody
some fresh news from the pinout !! with some patience i identified a good number of the pins. http://f4eru.free.fr/8701/ if we can finish this task, the (brute force) finding of the JTAG could be very close !! seems there are around 30 new pins, due to the muxing of the NOR flash and the RAM. This muxing is cool for us, coz we can emulate the flash + sdram with less connections to the emulating fpga.... a lot of pin patterns correspond exactly to the 8700 order! I also wonder of the 1.5V instead of 1.2V, and the "PWR C"(as i called it, because i don't have the value) Also, the main XTAL is an active oscillator, strange for me, this probably costs more than a naked crystal.... also, as some pads are wiped off, on my board, it would be very very helpfull to get another broken IN2G Sto tof a écrit : > Hello everybody. > > > I did not have a lot of time in the last months, but now i'm back and > alive ;) > > I made very interesting investigations onthe 8701. > > first results : > > http://l4n.clustur.com/index.php/Main_Page/S5L8701_analysis > > http://f4eru.free.fr/8701%20pinout.ods > > > > The bad news : the pinout seems to be very different than the 8701, > there is a different clock system at least in the chip. > > Therefore it will be very hard to locate jtag pins, etc... > > What could be extrmely helpful would be to have decapsulated chips to > view under the microscope. > Does somebody here have an opportunity to acess decap. equipment? or at > least a contact where we could do this cheaply ? > > > More to come soon > > Sto > > > _______________________________________________ > Linux4nano-dev mailing list > [email protected] > https://mail.gna.org/listinfo/linux4nano-dev > http://www.linux4nano.org > _______________________________________________ Linux4nano-dev mailing list [email protected] https://mail.gna.org/listinfo/linux4nano-dev http://www.linux4nano.org
