Do your STM32H750 chips have working HASH and CRYP units?

WeActStudio / MiniSTM32H7xx

STM32H750VBT6/STM32H743VIT6 Core Board With 0.96'' TFT,TF Card,8MB QSPI FLASH,8MB SPI FLASH,DVP Port

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Do your STM32H750 chips have working HASH and CRYP units? #27

Closed Crest closed 2 years ago

Crest commented 2 years ago

As confirmed by an STMicroelectronics employee in this thread some STM32H750 chips have been shipped with fused off HASH and CRYP units resulting in 100% failure rate to write to any of their control and status registers. The date codes listed in README.md for STM32H750 boards fall in the range of potentially defective chips.

Do your boards as offered on AliExpress ship chips containing usable HASH and CRYP units?

WeActStudio commented 2 years ago

At present, the boards we produce are all the chips of batch 21 and later.