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* @file    readme.txt                                                              *
* @author  MCD Application Team                                                    *
* @version V2.0                                                                    *
* @date    12-August-2025                                                          *
* @brief   Boundary Scan Description Language(BSDL) files for the STM32U3 MCUs.    *
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* COPYRIGHT(c) 2025 STMicroelectronics                                             * 
*                                                                                  *
* Redistribution and use in source and binary forms, with or without modification, *
* are permitted provided that the following conditions are met:                    *
*   1. Redistributions of source code must retain the above copyright notice,      *
*      this list of conditions and the following disclaimer.                       *
*   2. Redistributions in binary form must reproduce the above copyright notice,   *
*      this list of conditions and the following disclaimer in the documentation   *
*      and/or other materials provided with the distribution.                      *
*   3. Neither the name of STMicroelectronics nor the names of its contributors    *
*      may be used to endorse or promote products derived from this software       *
*      without specific prior written permission.                                  *
*                                                                                  *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"      *
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE        *
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE   *
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE     *
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL       *
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=======================
How to use BSDL Files :
=======================

The STM32U3 MCUs integrate two serially connected JTAG TAPs, the boundary scan
TAP (IR is 5-bit wide) and the CortexMx TAP (IR is 4-bit wide).

The package contains :

  + A BSDL File for the CortexMx TAP and is common to all STM32U3 devices
  + Boundary scan BSDL Files for each STM32U375_385 devices on different packages :
          
	  o LQFP48
	  o LQFP64
	  o LQFP100
	  o UFBGA64
	  o UFBGA100
	  o UQFN48
	  o UQFN32

 + Boundary scan BSDL Files for each STM32U375_385_SMPS devices on different packages :
          
	  o LQFP48
	  o LQFP64
	  o LQFP100
	  o UFBGA64
	  o UFBGA100
	  o UQFN48
	  o WLCSP68-Q
	  o WLCSP68-G
	  o WLCSP52

+ Boundary scan BSDL Files for each STM32U3B5_3C5 devices on different   packages :
          
	  o LQFP144
	  o UFBGA132
	  o LQFP100
	  o LQFP64
	  o LQFP48
	  o UQFN48

+ Boundary scan BSDL Files for each STM32U3B5_3C5_SMPS devices on different   packages :
          
	  o LQFP144
	  o UFBGA132
	  o WLCSP126
	  o LQFP100
	  o WLCSP72
	  o LQFP64
	  o LQFP48
	  o UQFN48
	


In order to run boundary scan, always provide two BSDL files to your JTAG Boundary scan tool:
the "CortexMx.bsd" and your selected "STM32xx_device_Package.bsd".  

WARNING : Do not combine both BSDL files in a single TAP with 9-bit wide !

For more details on the internal TAPs description refer to the Reference Manual
of the selected STM32xxxx device , Section : JTAG TAP connection.
=========================
* V2.0 - 12-August-2025
=========================
 + Added BSDL files for STM32U3B5_3C5 devices.

=========================
* V1.0 - 10-January-2025
=========================
 + Created with BSDL files for STM32U375_385 devices.

******************* (C) COPYRIGHT 2025 STMicroelectronics *****END OF FILE
