U-Boot
U-Boot is a bootloader.
Communicate with the SST26VF032B
| Instruction | Command cycle | Bitlen | Source | Example | |
|---|---|---|---|---|---|
| JEDEC-ID | 9FH | 32 | U-Boot > sspi 0x7100 32 9f000000
00BF2642 | ||
| RDSR | 05H | 16 | p. 10 | U-Boot > sspi 0x7100 16 3500
0008 | |
| RDCR | 35H | 16 | |||
| WREN | 06H | 8 | p. 33 | U-Boot > sspi 0x7100 8 06
00 | |
| WBPR | 42H | 152 | |||
| RBPR | 72H | 152 | |||
| ULBPR | 98H | 8 | |||
| Read (40MHz) | 03H | p. 15 | Read at offset 0 32 bits
U-Boot > sspi 0x7100 64 0300000000000000 00000000FFFFFFFF | ||
| SE | Sector-Erase (change to 1) a 4KiB sector | 20H | 32 |