FAQ on Flash and RAM
2024-02-23
What Flash space that users can use and how large it is?
Query via
uos.statvfs()interfaceThe size of FLASH corresponding to each model is different.
What RAM space is available to users and how large is it?
Query via
uos.statvfs()interfaceThe RAM size corresponding to each model is different. For details,For details, you can ask for <Quectel_QuecPython_Customer demand list collection> .
Does it support external flash extension and what interfaces and models are supported?
Different platforms support different Flash, please see below for details:
Unisoc: Nor Flash model:
| 4-wire SPI NOR Flash model | Remark |
|---|---|
| w25Q64JWSSIM | Passed stress test |
| GD25LE64E | |
| GD25LE64C | |
| XM25QU64B | Passed stress test |
| XM25QU128C | |
| GD25LQ64 | Passed stress test |
| GD25LQ64E | Passed stress test |
| 6-wire SPI NOR Flash model | Remark |
|---|---|
| w25Q128JWSIQT | |
| GD25LQ128DGSIG | |
| GD25LQ64ESIG | |
| GD25LQ128DYIGR | |
| GD25Q64C | |
| w25Q32JW | |
| GD25LQ32E | |
| XM25QU64CHIQT08s | |
| GD25LQ64EWIGR | |
| w25Q64JWSSIM | |
| XM25QU64 | Passed stress test |
| GD25LE64E | |
| GD25LQ128C | |
| XM25QU128 | Passed stress test |
| w25Q128JW | |
| w25Q32JW | |
| w25Q64JV | |
| ZB25VQ64 | Used in customer projects |
| MD25Q64C | Used in customer projects |
Unisoc: Nand Flash model
| Nand Flash model | Remark |
|---|---|
| w25NO2JWZEJF | |
| GD5F2GQ5REYJGR |
ASR: Flash model
| Flash model | Remark |
|---|---|
| GD25LE64E | |
| XM2 5QU64C | |
| GD25LQ64C | |
| XM25QU128B | 16M |