Release Notes for STM8 Touch Sensing Library (STM8_TouchSensing_Lib)

Copyright © 2010 STMicroelectronics

 

 

Contents

  1. STM8 Touch Sensing Library update History
  2. License

STM8 Touch Sensing Library update History

 

V2.3.0 – 09/15/2010

To port an application from STM8 Touch Sensing Library V2.2.0 to V2.3.0, the user must create again his tsl_conf.h file from a tsl_conf_RC_TOADAPT.h or tsl_conf_CT_TOADAPT.h V2.3.0 file with its own parameters :

  • PORT MASK definition for multi-channel keys section has been removed (the preprocessor variable definitions are automatically created in stm8_tsl_check_config.h)
  • Preprocessor variables :  
    • PROTECT_IO_ACCESS: allows to protect the IO register modifications by interruption subroutines during accesses from Touch Sensing acquisition functions, (to be kept at 1 to keep same behaviour as V2.2.0)
    • SW_SPREAD_SPECTRUM : for STM8L15x only, allows to use the same Spread Spectrum mechanism as implemented for the STM8L10x in order to keep a constant internal osillator frequency for USART communication for example, (0 to disable the feature)
    • SPREAD_COUNTER_MAX is now used for STM8L15x hardware spread spectrum excursion (if SPREAD_SPECTRUM set to 1),
    • ACTIVE_SHIELD_GROUP : defines the switch group dedicated to the active shield feature (0 to disable the feature)
    • RTOS_MANAGEMENT : allows to call the timebase routine from the RTOS instead of using a timer interrupt every 500µs,
    • TIMER_CALLBACK : allows to call a function from the timer interrupt used as 500µs timebase,
    • USE_INLINED_FUNCTIONS :  forces inlining of the SW spread spectrum function only (more function may be inlined in the future)
      •  no effect with IAR.
  • All the preprocessor variables must be defined but set to 0 to disable the associated feature.

List of changes:

  • Support of IAR C compiler:
    • Tested with v1.10.0
  • Add active shield feature for charge-transfer acquisition principle.
  • Add callback capability for time-base interrupt sub-routine.
  • Add RTOS management capability of the time-base function.
  • Add forced inlining option for the software spread spectrum function.
  • Add software spread spectrum for STM8L15x.
  • Add amplitude management of the hardware spread spectrum for STM8L15x.
  • Add the ability to define an application with multi-channel keys but without single channel key
    • Add a new compilation variable automatically generated : NUMBER_OF_ACQUISITION_PORTS
  • Add the ability to skip the port acquisition when all its channels are disabled.
  • Improve acquisition speed for charge transfer acquisition for both STM8L10x and STM8L15x.
  • Improve the management of the disabled channels during acquisition.
  • Add the management of the interrupt masking defined by a compilation variable.
  • Remove calibration related functions from the API.
  • Remove alignment mechanism for assembly functions of RC acquisition principle file.
  • Cleaning RC acquisition principle related code in charge transfer acquisition principle dedicated files.
  • Improve checking performed in the stm8_tsl_check_config.h file.
  • Simplify the multi-channel key definitions by automatically defining the MKEY_CHi_MASK compilation variable from stm8_tsl_check_config.h file.
  • CLWHTA and CLWLTA are now also used by STM8L10x related functions for charge-transfer acquisition principle.
  • Fix the adjustment of the low state pulse for STM8L10x charge-transfer acquisition.
  • Rename “Detection exclusion system” acronym from DES to DxS.
  •  

V2.2.0 – 11/30/2009

  • New folders and workspace architecture.
  • Support of Raisonance C compiler:
    • Full compiler version required for inline assembly support
    • Tested with v2.26.09.0317.
  • ECS limitation corrected:
    • References were frozen for 2 seconds whenever entering in post or pre states
    • This was problematic in noisy environment.
  • STM8L15x Charge Transfer acquisition optimized (30% faster)
  • New parameters for STM8L15x introduced in “stm8_tsl_conf_CT.h” file for capacitance charging/discharging tuning:
    • CLWHTA (Capacitance Loading Waiting HIGH Time Adjustment)
    • CLWLTA  (Capacitance Loading Waiting HIGH Time Adjustment)

V2.1.0 – 09/30/2009

  • Source files clean-up, MISRA check.
  • Update to latest STM8L standard peripheral libraries (STM8L10x v1.1.0 and STM8L15x v1.0.0).
  • Examples improvement, new Wheel example with the STM8L15x added.

 

V2.0.0 - 08/31/2009

  • Package structure and files organization updated
  • Update to latest standard peripheral libraries
  • Add the support of the charge-transfer acquisition principle (only supported by STM8L10x and STM8L15x devices)

 

V1.3.0 - 10/29/2009

  • Update to latest STM8S Standard Library V1.1.1.
  • Update acquisition and timebase timers table of STM8_TSL_RC_Configuration.h file.
  • Change condition to disable ECS when a SCKey or a MCKey is touched.

 

V1.2.0 - 03/24/2009

  • Add an option in the configuration file to choose the acquisition timer. This option allows to use the library with any STM8 device.
  • Add a synchronization capability (beta) on an interruption. This option is new and has not been fully validated.
  • Add Spread spectrum capability (beta). This option allows adding a variable delay between acquisitions to reduce noise sensitivity at specific frequencies. This option is new and has not been fully validated.

 

V1.1.0 - 02/21/2009

  • New option (NEGDETECT_AUTOCAL) added in the configuration file to enable or disable the autocalibration

 

V1.0.0 - 01/22/2009

  • First official release

 

License

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