Generic Timer Module (GTM) Debug and Trace Support
The Universal Debug Engine provides debug and trace support for the Bosch Generic Timer Module (GTM).
The GTM is a powerful and sophisticated timer module ensuring accurate multi-input data acquisition and multi-output signal generation in automotive powertrain and active safety applications or in industrial closed-loop applications.
The GTM is an IP block from Bosch and implemented by various semiconductor vendors in their multi-core microcontroller families, e.g.:
- TriCore™ AURIX™ from Infineon
- Stellar from STMicroelectronics
- Power Architecture™ based MPC57xx from NXP
- Power Architecture™ based SPC5 from STMicroelectronics
- Multi Channel Sequencers (MCS)
- RISC-like programmable cores
- Eight independent tasks per MCS
- Time Base Unit (TBU) to provide time bases to submodules
- Advanced Routing Unit (ARU) for routing data between submodules
- Input/output modules (TIM, TOM, ATOM, DTM) for
- Sampling external signals
- Generating output signals to drive outside world
- Interrupt Concentrator to bundle GTM interrupts and reduce number of interrupt lines to the outside SoC system
UDE - Universal Debug Engine - Support for Generic Timer Module (GTM)
The Universal Debug Engine provides debug and trace support for GTM implementations integrated in various multi-core microcontroller families.
Debugging and testing for the GTM is fundamentally different from traditional debugging for microcontrollers. Due to the specific hardware characteristics and the real-time characteristics of the applications, stop-mode debugging is not possible or only possible to a limited extent for the GTM. Therefore, trace is crucial for the development of GTM applications. UDE addresses this by providing extensive trace support for devices with GTM.
- Display of assembler code executed by MCS channels
- Display of C source code if MCS code is compiled by C-compiler
- Display of channel registers
- Channel registers can be modified
- Suspend and release can by synchronized with run-control of system cores
- Support for MCS hardware breakpoints (as of GTM v4.1)
- Support for MCS single stepping (as of GTM v4.1)
- Fetch trace (instruction trace) of executed channel programs
- Trace of MCS data accesses
- Detailed display of module registers
- Module registers can be modified
- Trace of signals for selected modules*
- Trace of data transfers through the ARU
- Trace of TBU timestamps*
Supported Architectures with Universal Debug Engine (UDE Debugger)
- Infineon TriCore™ AURIX™ TC4x Microcontrollers
- Infineon TriCore™ AURIX™ TC32, TC33, TC35, TC36, TC37, TC38, TC39, TC3x Microcontrollers
- Infineon TriCore™ AURIX™ TC21, TC22, TC23, TC24, TC26, TC27, TC29, TC2x Microcontrollers
- NXP Power Architecture® MPC57xx Microcontrollers
- STMicroelectronics Power Architecture® SPC57x Microcontrollers
- STMicroelectronics Power Architecture® SPC58x Microcontrollers
- NXP Cortex-R52 S32Z and S32E Real-Time Processors
- STMicroelectronics Cortex-R52, Cortex-M7 Stellar Automotive Microcontrollers
External Resources
Presentations of the GTM Techday 2022