>Lauri Pirttiaho on Mon Sep 26 18:25:44 UTC 2005 >>Bertrik Sikken on Sun Sep 25 20:35:55 UTC 2005 >>>Lauri Pirttiaho wrote: >>> -- There is some kind of clocked serial device connecter to processor >>> port 0 bits 5-7 -- it may be an EEPROM but maybe also something else. >> >>Wow, you opened up the device and attached a 'scope? > >Too expensive... :) I just read the code.
That serial device is the Wolfson WM8169 CCD digitiser mentioned in Martin's www page http://mibix.de/wiki/index.php/MD6190_Hardware. The protocol matches with my findings from the firmware (compare WM8196 data sheet, link on Martin's page): ************************************************************************ * Write out 14 bits of data to some clocked serial device: * Input R7 bits 5 and 3:0 * R5 bits 7:0 * Output, possibly R4 which contains copy of R5 at the end * * Set port 1 bits 5 and 7 low * Write to port 1 bit 6 (data) the following bits in that order * and then toggle high/low port 1 bit 7 (clock): * R7[5] 0 R7[3:0] R5[7:0] * Then toggle high/low port 1 bit 5 (end) ************************************************************************ With best regards, Lauri Pirttiaho Oulu Finland ................................................................... Luukku Plus paketilla p??set eroon tila- ja turvallisuusongelmista. Hanki Luukku Plus ja helpotat el?m??si. http://www.mtv3.fi/luukku
