This is a P2X8C4M64P/Propeller 2 driver object for 25xxxx-series flash memories
IMPORTANT: This software is meant to be used with the spin-standard-library (P8X32A) or p2-spin-standard-library (P2X8C4M64P). Please install the applicable library first before attempting to use this code, otherwise you will be missing several files required to build the project.
- SPI connection at up to 25MHz (tested at up to 300MHz fSYS - may work at higher SPI clocks - YMMV)
- Read device ID, Mfr. ID, JEDEC ID
- Read, write a byte
- Read, write a block (write limited to a page per transaction - 256 bytes)
- Erase a sector (4kB), 32kB block, 64kB block, entire chip
- Read busy flag
P2/SPIN2:
- p2-spin-standard-library
- memory.common.spin2h (provided by p2-spin-standard-library)
| Processor | Language | Compiler | Backend | Status |
|---|---|---|---|---|
| P1 | SPIN1 | FlexSpin (6.1.1) | Bytecode | Not yet implemented |
| P1 | SPIN1 | FlexSpin (6.1.1) | Native/PASM | Not yet implemented |
| P2 | SPIN2 | FlexSpin (6.1.1) | NuCode | FTBFS |
| P2 | SPIN2 | FlexSpin (6.1.1) | Native/PASM2 | OK |
(other versions or toolchains not listed are not supported, and may or may not work)
- Single-lane SPI only (no Dual-SPI or Quad-SPI - unplanned, for now)
- SPI driver is relatively slow, compared to memory's capability; not suitable for high-performance applications
- Tested only with Winbond W25Q128