******************************************************************************
* @file    readme.txt
* @author  Application Hardware Board
* @version 6.0
* @date    25-April-2025  
* @brief   Examples of DDR memory routing on STM32MP2 MPUs
******************************************************************************
* COPYRIGHT(c) 2025 STMicroelectronics
*
* The Open Platform License Agreement (“Agreement”) is a binding legal contract
* between you ("You") and STMicroelectronics International N.V. (“ST”), a
* company incorporated under the laws of the Netherlands acting for the purpose
* of this Agreement through its Swiss branch 39, Chemin du Champ des Filles,
* 1228 Plan-les-Ouates, Geneva, Switzerland.
*
* By using the enclosed reference designs, schematics, PC board layouts, and
* documentation, in hardcopy or CAD tool file format (collectively, the
* “Reference Material”), You are agreeing to be bound by the terms and
* conditions of this Agreement. Do not use the Reference Material until You
* have read and agreed to this Agreement terms and conditions. The use of
* the Reference Material automatically implies the acceptance of the Agreement
* terms and conditions.
*
* The complete Open Platform License Agreement can be found on www.st.com/opla.
******************************************************************************

========================
* History
========================

* 1.0 - 20-March-2024
------------------------
    + First release.
	
* 2.0 - 01-July-2024
------------------------
    + add schematics, track lengths file, 6 layers PCB layout, BOM and gerber of STM32MP25XXAL_DDR4x16 STPMIC25APQR.

* 3.0 - 11-September-2024
------------------------
    + add schematics, track lengths file, 4 layers PCB layout, BOM and gerber of STM32MP25xxAI_2DDR4x16 STPMIC25APQR.
    + add schematics, track lengths file, 6 layers PCB layout, BOM and gerber of STM32MP25xxAI_2DDR3Lx16 STPMIC25APQR.
    + add 4 layers PCB layout and gerber of STM32MP25XXAK_2DDR4x16 STPMIC25APQR with correction of eMMC.SDMMC2_CMD well connected.

* 4.0 - 24-October-2024
------------------------
    + add schematics, track lengths file, 4 layers PCB layout, BOM and gerber of STM32MP25xxAI_LPDDR4 STPMIC25APQR.
    + add schematics, track lengths file, 4 layers PCB layout, BOM and gerber of STM32MP25xxAK_LPDDR4 STPMIC25APQR.
    + add schematics, track lengths file, 6 layers PCB layout, BOM and gerber of STM32MP25xxAL_LPDDR4 STPMIC25APQR.
    + add corrected BOM of STM32MP25xxAI_2DDR4x16, STM32MP25xxAI_2DDR3Lx16, STM32MP25xxAL_DDR4x16  with the ''fitted'' column.
    + add schematics, layout and gerber of STM32MP25xxAI_2DDR4x16 STPMIC25APQR with the pin ''ten'' of DDR4 connected to ground.

* 5.0 - 25-March-2025
------------------------
    + add schematics, track lengths file, 4 layers PCB layout, BOM and gerber of STM32MP25xxAJ_LPDDR4 STPMIC25APQR.
    + add schematics, track lengths file, 4 layers PCB layout, BOM and gerber of STM32MP25xxAJ_DDR4x16 STPMIC25APQR.
    + add schematics and pcb ascii files

* 6.0 - 25-April-2025
------------------------
    + add 10µF on LDO3IN connected to VDD_DDR on STM32MP25xxAI_2DDR4x16, STM32MP25xxAI_2DDR3Lx16, STM32MP25xxAJ_DDR4x16, STM32MP25XXAK_2DDR3Lx16, STM32MP25XXAK_2DDR4x16 and
      STM32MP25XXAL_DDR4x16. Schematics, layout, BOM, gerber and ascii files are updated.


========================
* Package content 
========================
    + STM32MP25xxAI (TFBGA436 18x18)
	- track lengths of STM32MP25xxAI 
        - schematics, track lengths file, 4 layers PCB layout, BOM, gerber and ascii files of STM32MP25xxAI_LPDDR4 STPMIC25APQR
 	- schematics, track lengths file, 4 layers PCB layout, BOM, gerber and ascii files STM32MP25xxAI_2DDR4x16 STPMIC25APQR
    	- schematics, track lengths file, 6 layers PCB layout, BOM, gerber and ascii files STM32MP25xxAI_2DDR3Lx16 STPMIC25APQR

    + STM32MP25xxAJ (TFBGA361 16x16)
	- track lengths of STM32MP25xxAJ 
        - schematics, track lengths file, 4 layers PCB layout, BOM, gerber and ascii files of STM32MP25xxAJ_LPDDR4 STPMIC25APQR
	- schematics, track lengths file, 4 layers PCB layout, BOM, gerber and ascii files of STM32MP25xxAJ_DDR4x16 STPMIC25APQR
	
    + STM32MP25xxAK (VFBGA424 14x14)
	- track lengths of STM32MP25xxAK 
        - schematics, track lengths file, 4 layers PCB layout, BOM, gerber and ascii files of STM32MP25xxAK_LPDDR4 STPMIC25APQR
	- schematics, track lengths file, 4 layers PCB layout, BOM, gerber and ascii files of STM32MP25XXAK_2DDR3Lx16 STPMIC25APQR
	- schematics, track lengths file, 4 layers PCB layout, BOM, gerber and ascii files of STM32MP25XXAK_2DDR4x16 STPMIC25APQR
	
    + STM32MP25xxAL (VFBGA361 10x10)
        - track lengths of STM32MP25xxAL 
        - schematics, track lengths file, 6 layers PCB layout, BOM, gerber and ascii files of STM32MP25XXAL_LPDDR4 STPMIC25APQR
        - schematics, track lengths file, 6 layers PCB layout, BOM, gerber and ascii files of STM32MP25XXAL_DDR4x16 STPMIC25APQR
	
  
******************* (C) COPYRIGHT 2025 STMicroelectronics *****END OF FILE
