SLAAE56A November   2022  – March 2023 MSPM0G1105 , MSPM0G1106 , MSPM0G1107 , MSPM0G1505 , MSPM0G1506 , MSPM0G1507 , MSPM0G3105 , MSPM0G3106 , MSPM0G3107 , MSPM0G3505 , MSPM0G3506 , MSPM0G3507 , MSPM0L1105 , MSPM0L1106 , MSPM0L1227 , MSPM0L1228 , MSPM0L1228-Q1 , MSPM0L1303 , MSPM0L1304 , MSPM0L1304-Q1 , MSPM0L1305 , MSPM0L1305-Q1 , MSPM0L1306 , MSPM0L1306-Q1 , MSPM0L1343 , MSPM0L1344 , MSPM0L1345 , MSPM0L1346 , MSPM0L2227 , MSPM0L2228 , MSPM0L2228-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1MSPM0 Portfolio Overview
    1. 1.1 Introduction
    2. 1.2 Portfolio Comparison of STM32 MCUs to MSPM0 MCUs
  4. 2Ecosystem and Migration
    1. 2.1 Software Ecosystem Comparison
      1. 2.1.1 MSPM0 Software Development Kit (MSPM0 SDK)
      2. 2.1.2 CubeIDE vs Code Composer Studio IDE (CCS)
      3. 2.1.3 CubeMX vs SysConfig
    2. 2.2 Hardware Ecosystem
    3. 2.3 Debug Tools
    4. 2.4 Migration Process
    5. 2.5 Migration and Porting Example
  5. 3Core Architecture Comparison
    1. 3.1 CPU
    2. 3.2 Embedded Memory Comparison
      1. 3.2.1 Flash Features
      2. 3.2.2 Flash Organization
      3. 3.2.3 Embedded SRAM
    3. 3.3 Power Up and Reset Summary and Comparison
    4. 3.4 Clocks Summary and Comparison
    5. 3.5 MSPM0 Operating Modes Summary and Comparison
    6. 3.6 Interrupt and Events Comparison
    7. 3.7 Debug and Programming Comparison
  6. 4Digital Peripheral Comparison
    1. 4.1 General-Purpose I/O (GPIO, IOMUX)
    2. 4.2 Universal Asynchronous Receiver-Transmitter (UART)
    3. 4.3 Serial Peripheral Interface (SPI)
    4. 4.4 I2C
    5. 4.5 Timers (TIMGx, TIMAx)
    6. 4.6 Windowed Watchdog Timer (WWDT)
    7. 4.7 Real-Time Clock (RTC)
  7. 5Analog Peripheral Comparison
    1. 5.1 Analog-to-Digital Converter (ADC)
    2. 5.2 Comparator (COMP)
    3. 5.3 Digital-to-Analog Converter (DAC)
    4. 5.4 Operational Amplifier (OPA)
    5. 5.5 Voltage References (VREF)
  8. 6Revision History

4.5 Timers (TIMGx, TIMAx)

STM32G0 and MSPM0 both offer various timers. MSPM0 offers timers with varying features that support use cases from low power monitoring to advanced motor control.

Table 4-7 Timer Naming
STM32G0MSPM0
Timer NameAbbreviated NameTimer NameAbbreviated Name
Advanced controlTIM1Advanced controlTIMA0
General-purposeTIM2-4, TIM14/-17General purposeTIMG0-11
High resolutionTIMG12
BasicTIM6/7
Low powerLPTIM
Table 4-8 Timer Feature Comparison
FeatureSTM32G0 TimersMSPM0G TimersMSPM0L Timers
Resolution16 bit, 32 bit16 bit, 32 bit16 bit
PWMYesYesYes
CaptureYesYesYes
CompareYesYesYes
One-shotYesYesYes
Up down count functionalityYesYesYes
Power ModesYesYesYes
QEI supportYesYesNo
Programmable pre-scalarYesYesYes
Shadow register modeYesYesYes
Events/InterruptYesYesYes
Fault Event MechanismYesYesNo
Auto reload functionalityYesYesYes
Table 4-9 Timer Module Replacement
STM32G0 TimerMSPM0 EquivalentReasoning
TIM1TIMA, TIMG8-12Advanced control, Both 16-bit resolution, QEI support
TIM2TIMG1232-bit resolution
TIM3/4TIMG0-7General purpose, 16-bit resolution
TIM6/7AnyBasic timer
TIM14AnySame functionality as TIM3/4
TIM15/16/17AnyGeneral purpose
LPTIMAny timer in PD0LPTIM sources LFCLK, PD0 – low power mode in MSPM0
Table 4-10 Timer Use-Case Comparisons
FeatureSTM32G0 TimerMSPM0 Timer
PWMTIM1-4 have edge and center aligned options, TIM6-7 do not have PWM functionality. TIM15-17 only edge aligned option.All timers have edge aligned or center aligned options
CaptureNo major differencesNo major differences
CompareNo major differencesNo major differences
One-shotNo major differencesNo major differences
Prescaler16-bit prescaler, besides LPTIM (3-bit prescaler)8-bit prescaler
SynchronizationTIM1-4, TIM15All timers have this capability

Timer code examples

Information about timer code examples can be found in the MSPM0 SDK examples guide.