Parallel Synchronous Transmission using GPIO and DMA software expansion for STM32Cube (AN4666)

The STM32 microcontrollers are able to emulate parallel synchronous communication through GPIOs using the embedded DMA IP.

The X-CUBE-PARAL-COM software solution developed on STM32Cube offers an implementation of such parallel synchronous interface on STM32L476G and STM32F429I discovery boards. It can easily be ported on other platforms.

Key Features

  • Timeout detection of end of transmission
  • CRC check of transmitted data
  • STM32L476G discovery board implementation features
    • Storage of transmitted data in STM32L476 internal SRAM
    • Up to 10MHz transmission clock
    • Data frame length limited by internal SRAM size and DMA 16bit counter (65530 data transmitted)
  • STM32F429I discovery board implementation features
    • Storage of transmitted data in external SDRAM
    • Up to 7.82MHz transmission clock
    • Data frame length limited by external SDRAM size

Resources

Technical Documentation

Product Specifications
Description Version Size
Parallel synchronous transmission using GPIO and DMA software expansion for STM32Cube 2.0 134 KB
Application Notes
Description Version Size
Parallel synchronous transmission using GPIO and DMA 1.0 1 MB
User Manuals
Description Version Size
Development checklist for STM32Cube Expansion Packages 1.0 283 KB
Development guidelines for STM32Cube Expansion Packages 1.0 485 KB

Publications and Collaterals

Brochures
Description Version Size
STM32 Open Development Environment Brochure 15.10 4 MB

Legal

License Agreement
Description Version Size
Mix Ultimate Liberty+OSS+3rd-party V1 - SOFTWARE LICENSE AGREEMENT 3.1 104 KB

Get Software

Part Number Software Version Marketing Status Supplier Order from ST
X-CUBE-PARAL-COM 1.1 Active ST

 

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