Content originally posted in LPCWare by fweller on Thu Feb 25 14:39:17 MST 2016
We want to boot the CPU using a 32Mbit QSPI NOR Flash device.
In North America, Micron and Cypress(Spansion) are the easiest suppliers to source.
We want to design in both of these devices (second sourced):
Micron N25Q032A13
Cypress S25FL132K
Issues:
1. In NXP document UM10503 (user manual for LPC4330) Section 5.3.4.4.1 “Supported QSPI devices”, Table 25, there is a list of devices that were supported as of the writing of that document. These devices are no longer the recommended families to design with (example, Spansion S25FL032P1F is NRND) . The devices that Nate should be using are not mentioned in this list.
2. In looking through the LPCOpen 2.2 sample projects I did find the 'lib_lpcspifilib' project which appears to be the NXP SPIFI library exposed through 'spifilib_api.h'. This library includes some pre-compiled library files but little as far as source.
3. There is an 'lpcspifilib' project which looks to be a sample project that contains what I was looking for. However, it appears the library mentioned above only supports SpansionS25FLP, SpansionS25FL1 and MacronixMX25L (see spifilib_dev.h). As generic interfaces to request / verify the part and setup through a command interface, maybe this is ok as the sample does show how to setup the interface modes / clocks and perform a basic test before entering back to memory (code retrieval) mode. I guess to prove this out I'd would need to hack in another qspi onto the board, port the debug init script and see if it actually works.
Questions:
1. Is there an updated list of supported QSPI devices? (Issue #3 above shows Spansion S25FL1 support in the driver but is not listed in the document from issue #1)
2. Have the drivers mentioned above been updated recently to support more QSPI devices?
3. Where could a customer get source code instead of pre-compiled drivers so that the customer may write their own driers?
4. What would NXP recommend the customer do in this situation.
