************************************************************************************
* @file    readme.txt                                                              *
* @author  MCD Application Team                                                    *
* @version V4.0                                                                    *
* @date    04-October-2021                                                        *
* @brief   Boundary Scan Description Language(BSDL) files for the STM32G4 MCUs.    *                     
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* COPYRIGHT(c) 2021 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       *
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR       *
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,    *
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE    *
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.             *
************************************************************************************

=======================
How to use BSDL Files :
=======================

The STM32G4 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 CortexM4 TAP, common to all STM32G4 devices
   + Boundary scan BSDL Files for each STM32G471_473_474_483_484 device on different packages :
   
	  o LQFP128
	  o LQFP100
	  o LQFP80
	  o LQFP64
	  o LQFP48
	  o UFQFPN48
	  o TFBGA100
	  o WLCSP81

   + Boundary scan BSDL Files for each STM32G431_441 device on different packages :
   
	  o LQFP100
	  o LQFP80
	  o LQFP64
	  o LQFP48
	  o LQFP32
	  o UFQFPN48
	  o UFQFPN32
	  o UFBGA64
	  o WLCSP49
	  
   + Boundary scan BSDL Files for each STM32G491 device on different packages :
   
      o LQFP100
	  o LQFP80
	  o LQFP64
	  o LQFP48
	  o UFQFPN48
	  o UFQFPN32
	  o UFBGA64
	  o WLCSP64

   + Boundary scan BSDL Files for each STM32G4A1 device on different packages :
   
      o LQFP100
	  o LQFP80
	  o LQFP64
	  o LQFP48
	  o UFQFPN48
	  o UFQFPN32
	  o UFBGA64
	  o WLCSP64
	  
In order to run boundary scan, always provide two BSDL files to your JTAG Boundary scan tool:
the "CortexMx.bsd" and your selected "STM32G4xx_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.

=========================
* V4.0 - 04-October-2021
=========================
  Updated BSDL files for STM32G4A1 and STM32G491 devices.
  
=========================
* V3.0 - 12-February-2021
=========================
  Created with BSDL files for STM32G4A1 devices
  
======================
* V2.0 - 24-JULY-2020
======================
  Created with BSDL files for STM32G491 devices
  
=====================
* V1.0 - 07-May-2019
=====================
  Created with BSDL files for STM32G471_473_474_483_484 devices
  Created with BSDL files for STM32G431_441 devices
  

******************* (C) COPYRIGHT 2021 STMicroelectronics *****END OF FILE
