SLAZ648S February   2015  – May 2021 MSP430F6734A

 

  1. 1Functional Advisories
  2. 2Preprogrammed Software Advisories
  3. 3Debug Only Advisories
  4. 4Fixed by Compiler Advisories
  5. 5Nomenclature, Package Symbolization, and Revision Identification
    1. 5.1 Device Nomenclature
    2. 5.2 Package Markings
      1.      PZ100
      2.      PN80
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  ADC39
    2. 6.2  ADC42
    3. 6.3  ADC69
    4. 6.4  AUXPMM2
    5. 6.5  BSL7
    6. 6.6  BSL14
    7. 6.7  CPU21
    8. 6.8  CPU22
    9. 6.9  CPU36
    10. 6.10 CPU40
    11. 6.11 CPU46
    12. 6.12 CPU47
    13. 6.13 DMA4
    14. 6.14 DMA7
    15. 6.15 DMA9
    16. 6.16 DMA10
    17. 6.17 EEM8
    18. 6.18 EEM17
    19. 6.19 EEM19
    20. 6.20 EEM23
    21. 6.21 JTAG26
    22. 6.22 JTAG27
    23. 6.23 LCDB5
    24. 6.24 LCDB6
    25. 6.25 PMM7
    26. 6.26 PMM11
    27. 6.27 PMM12
    28. 6.28 PMM14
    29. 6.29 PMM15
    30. 6.30 PMM18
    31. 6.31 PMM20
    32. 6.32 PMM26
    33. 6.33 PORT15
    34. 6.34 PORT19
    35. 6.35 SD3
    36. 6.36 UCS11
    37. 6.37 USCI36
    38. 6.38 USCI37
    39. 6.39 USCI41
    40. 6.40 USCI42
    41. 6.41 USCI47
    42. 6.42 USCI50
  7. 7Revision History

6.21 JTAG26

JTAG Module

Category

Debug

Function

LPMx.5 Debug Support Limitations

Description

The JTAG connection to the device might fail at device-dependent low or high supply voltage levels if the LPMx.5 debug support feature is enabled. To avoid a potentially unreliable debug session or general issues with JTAG device connectivity and the resulting bad customer experience Texas Instruments has chosen to remove the LPMx.5 debug support feature from common MSP430 IDEs including TIs Code Composer Studio 6.1.0 with msp430.emu updated to version 6.1.0.7 and IARs Embedded Workbench 6.30.2,  which are based on the MSP430 debug stack MSP430.DLL 3.5.0.1  http://www.ti.com/tool/MSPDS

TI plans to re-introduce this feature in limited capacity in a future release of the debug stack by providing an IDE override option for customers to selectively re-activate LPMx.5 debug support if needed. Note that the limitations and supply voltage dependencies outlined in this erratum will continue to apply.

For additional information on how the LPMx.5 debug support is handled within the MSP430 IDEs including possible workarounds on how to debug applications using LPMx.5 without toolchain support refer to Code Composer Studio User's Guide for MSP430 chapter F.4 and IAR Embedded Workbench User's Guide for MSP430 chapter 2.2.5.

Workaround

1.        If LPMx.5 debug support is deemed functional and required in a given scenario:

a)      Do not update the IDE to continue using a previous version of the debug stack such as MSP430.DLL v3.4.3.4.

OR

b)      Roll back the debug stack by either performing a clean re-installation of a previous version of the IDE or by manually replacing the debug stack with a prior version such as MSP430.DLL v3.4.3.4 that can be obtained from http://www.ti.com/tool/MSPDS.  

2.       In case JTAG connectivity fails during the LPMx.5 debug mode, the device supply voltage level needs to be raised or lowered until the connection is working.

Do not enable the LPMx.5 debug support feature during production programming.