FAQ on Flash and RAM

What Flash space that users can use and how large it is?

  1. Query via uos.statvfs() interface

  2. The size of FLASH corresponding to each model is different.

What RAM space is available to users and how large is it?

  1. Query via uos.statvfs() interface

  2. The 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