Help connecting SPI Flash memory to PSoC5 (hardware + firmware)

[Alinik]

Hello everyone,

I'm working on a project using a PSoC5 (CY8C5888LTI-LP097) and I need to add an external SPI flash memory to store configuration data and logs. I don’t have much experience with external flash memories, so I’d appreciate advice on both hardware and firmware aspects.

Memory Selection

• Which SPI flash memories (preferably Cypress or Infineon) are compatible with the PSoC5 and easy to integrate?
  I'm looking for a device with a capacity between 4 MB and 16 MB.
• Should I opt for a Quad-SPI flash or is a standard SPI flash sufficient for a beginner?
  I'm trying to balance performance with ease of integration.

Hardware Considerations

• Interfacing: How should I connect the SPI pins (SCK, MOSI, MISO, CS) of the PSoC5 to the flash memory? Do I need to use pull-up or pull-down resistors on these lines?
• Voltage Levels: The PSoC5 operates at 3.3V. If the flash memory also operates at 3.3V, do I need any level shifting?
• PCB Layout: Are there any schematic examples or best practices for PCB layout (trace length, decoupling strategies, etc.) that you would recommend for this interface?

Firmware Considerations

• SPI Master Configuration: How do I configure the SPI Master in PSoC Creator to communicate effectively with the flash memory?
• Libraries and Drivers: Are there any pre-existing Cypress libraries available for handling read/write operations with SPI flash memory?
• Common Pitfalls: What common errors should I avoid during initialization and operation?

Extra Questions

• Would you recommend Cypress flash memories like the S25FL116K or any other model in the S25FL series?
• Are there any tutorials or reference designs specifically for interfacing a PSoC5 with SPI flash memory?
  

Any advice, documentation, or reference designs would be greatly appreciated!

Thank you in advance for your help.