Loading...
 

Zephyr project on STM32

   Zephyr Workbench, a VSCode extension to manage Zephyr on STM32.
It enables users to easily create, develop, and debug Zephyr applications.
Main features:
  • Install host dependencies.
  • Import toolchain and SDK.
  • Create, configure, build and manage apps.
  • Debug STM32.
You can directly download it from the VSCode marketplace
For more details, visit the Zephyr Workbench

System Workbench for STM32


Why is the pointer only 1 byte while the Size is 2 bytes? Sense?

Hi Everyone,

This is about a HAL_SPI_Transmit().

When looking in ST’s help file STM32F103xG HAL User Manual.chm HAL_SPI_Transmit(), *pData is uint8_t of type while Size is of uint16_t type. That doesn’t make sense. How can a pointer only reach 255 while the size can go up to 65535. I don’t see any practical purpose in this. It’s funny. Isn’t a 1MB memory address a lot wider than 1 byte? Sure it is, not? So what exactly is pData then?

Greets,
Ben

ps: The ST help screenshot for HAL_SPI_Transmit() is attached.

pData is a pointer pointing to an array of 8 bit bytes or similar object.

The pointer itself is probably 32 bits.

Cheers

Reynard



 

Newest Forum Posts

  1. Можно ли установить камин на балконе или лоджии? by Grand3kpdErorb, 03:38
  2. reservation car service Seattle by Jamesprede, 2025-05-01 10:06
  3. Last day: drone bonus by Danielrug, 2025-04-19 16:55
  4. SPI on Nucleo_STMH533RE by higginsa1, 2025-03-25 07:37
  5. SPI on Nucleo_STMH533RE by royjamil, 2025-03-23 11:31
  6. SPI on Nucleo_STMH533RE by higginsa1, 2025-03-23 09:33
  7. Configuring DMA for ADC in SW? by sam.hodgson, 2025-03-04 12:58
  8. Insightful Perspectives on This Subject by davidsycle, 2025-03-04 05:45
  9. Build a project in "release" mode by info@creosrl.it, 2025-02-20 18:12
  10. Build a project in "release" mode by info@creosrl.it, 2025-02-20 17:05

Last-Modified Blogs