Difference: MicroSdBlocks (100 vs. 101)

Revision 1012022-10-11 - PeterSchmid

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The SST25VF016B seems to be compatible.

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STM32WB5MM Discovery Kit (SPI S25FL128)

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STM32WB5MM Discovery Kit (QSPI S25FL128)

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< 16 MiB Quad SPI NOR Flash chip S25FL128SDSMFV001.

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> 16 MiB Quad SPI NOR Flash chip S25FL128SDSMFV001. Uniform 64-KB sectors with Hybrid 4-KB sectors.

The main flash array is divided into erase units called sectors. The sectors are organized either as a hybrid combination of 4-KB and 64-KB sectors, or as uniform 256-KB sectors.

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< 32 4 KiB sectors and 254 64 KiB sectors. What a pain, why use STM this Flash? To simplify writing, only the first 4 KiB of the 64 KiB sectors are used. That means (32 + 254) * 4 KiB = 1140 KiB are available for the volume. To make it even simpler, I use only 64 KiB sectors, that means there are 256 sectors and therefore 1 MiB available for the volume.

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> 32 4 KiB sectors and 254 64 KiB sectors. What a pain, why use STM this Flash? To simplify writing, only the first 4 KiB of the 64 KiB sectors are used. That means (32 + 254) * 4 KiB = 1140 KiB are available for the volume. To make it even simpler, I use only 64 KiB sectors, that means there are 256 sectors and therefore 1 MiB available for the volume. For implementation see fd.c and fd_spi.c

Create a 1 MiB FAT filesystem as a loop device on Linux (or use the already prepared fd-1MiB.img

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Umount the loop-device and copy the file to a SD-card.

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< Copy the filesystem to the flash disk on the target Mecrisp-Cube WB5M Discovery system:

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> Copy the filesystem to the flash disk on the target Mecrisp-Cube WB5M Discovery system:

dd 1:/boot/fd-1MiB.img 0:

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There is no serial NOR flash on board, but there is an QSPI interface on connector CN10.

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< It is easy to connect a MIKROE-4067 or Sparkfun SPX-17115 with a W25Q128JV (128M-bit) NOR flash memory on it. See also W25Q128JVPIQ.

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> It is easy to connect a MIKROE-4067 or Sparkfun SPX-17115 with a W25Q128JV (128M-bit) NOR flash memory on it. See also Winbond W25Q128JVPIQ.

The driver (fd_spi.c, fd.c) is based on the STM example project for the N25Q128A

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See above (MicroSdBlocks#STM32WB_Feather_SPI_W25Q128) for creating the image fd-16MiB.img.

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Arduino Portenta H7 (QSPI MX25L12833F)

The Macronix MX25L12833F is compatible to the Winbond W25Q128JVPIQ. See above MicroSdBlocks#STM32H743_Nucleo_QSPI_W25Q128 for details.

SD Drive

Home Brewed microSD Adapter for STM32WB55 Nucleo/Dongle (SPI)

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