Which library is this? I use code from the Legacy MLA derived from the TCP/= IP=20 demo app which has a driver for that chip. Do you know if this bug is also= =20 present there? /Ruben > Thanks for the suggestion, we did in fact tested one of those flash ICs o= n > isolation and worked the same. >=20 > Nevertheless after a long weekend we found problem was in software librar= y: > the "SPI delete section" command had an extra bogus byte nobody noticed > before, and that was not an issue for silicon in earlier batches or even > most units in the last batch. >=20 > Surprisingly though, that bogus byte indirectly caused the next SPI > commands to not work as expected in some units in the new batch, so we ju= st > uncovered an old bug that was irrelevant till latest silicon received. > Being indirect issue was really tricky to isolate. >=20 > So all set... just live and learn. >=20 > Ariel Rocholl >=20 >=20 --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .