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Relationship between STM32 HAL and Keil CMSIS-Drivers

ziffusion

Please help me understand the relationship / layering between STM32 HAL drivers and Keil drivers.

  1. Is it fair to say that STM32 HAL drivers are layered above CMSIS-CORE?
  2. Is it fair to say that Keil drivers are CMSIS compliant (CMSIS-Drivers), also layered above CMSIS-CORE?
  3. Are these two sets of drivers equivalent (functionality / scope)?

Keil DFP seems to include STM32 HAL drivers. But they also provide their own drivers, which I assume are CMSIS-Drivers.

  1. Does that mean that you have two flavors of drivers available to you - STM32 HAL drivers and Keil CMSIS-Drivers?
  2. What is the layering for the Keil drivers? Are they layered on top of STM32 HAL at all? Or is CMSIS-CORE their only dependency?

Thanks for your help!

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