Unable to read flash id using SPIFI

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by jurrien on Thu Aug 27 04:53:27 MST 2015
Dear all,

Currently I am using the SPIFI driver for communication between an lpc1837 and a Micron flash chip (N25Q256). Due to the limited control over the driver I am considering to move to the SPIFI library provided by nxp. I have added the device to the supplied devices, however when the menufactory signature is read, it reads 0xFF for all 3 bytes. I did test the same software with a smaller flash chip of the same manufacturer (N25Q128) and here the right id is read. I have been trying the find a difference between the to datasheets, but could not find anything significant. Anyone an idea why the id bytes could be read as 0xFF?