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

5.3 Digital-to-Analog Converter (DAC)

The STM32G0 and MSPM0 family of parts both offer 12-bit DAC peripherals to perform digital to analog conversion for various applications. In the STM32G0 documentation, this peripheral is referred to just as the DAC. In the MSPM0 Technical Reference Manual, the MSPM0 series data sheets, and the MSPM0 SDK, the 12-bit DAC peripheral is referred to as the DAC12. This differentiates the DAC12 from the 8-bits DACs which are available for use with each comparator peripheral included in a given MSPM0 device. Those additional 8-bit DACs are covered in the comparator section of this document. This DAC12 peripheral is only available on the MSPM0G family of devices.

The features of the 12-bit DAC peripherals for the STM32G0 and MSPM0G are summarized in #GUID-13DE0445-2EC1-4D9C-BC98-7F81A5C380B5/GUID-CCFD0B2D-1548-40E1-BBE3-638708CC770A.

Table 5-4 DAC Feature Set Comparison
FeatureSTM32G0MSPM0
Resolution12 bits (11.4 to 11.5 ENOB)12 bits (11 ENOB)
Output rate1 MSPS1 MSPS
Output channels2 (1)1(3)
Data formats8-bit right aligned, 12-bit right aligned, 12-bit left aligned8-bit right aligned, 12-bit right aligned, two's complement or straight binary
DMA integrationYesYes
Output routingExternal Pins External Pins
Internal peripheral connections: COMP IN-, ADCInternal peripheral connections: OPA IN+, COMP IN+, ADC0
Internal reference voltageYes, 2.5 V or 2.048 VYes, 2.5 V or 1.4 V
External reference voltageYesYes
FIFONoYes
Output bufferYesYes
Configurable output offsetYesYes
Self-calibration modeYesYes
Automatic waveform generationNoise wave, triangle waveNo
Sample and hold modeYesNo
Trigger sourcesExternal pin, internal timer signals, DAC hold clock, DMA underrunInternal dedicated sample time generator, DMA interrupts/events, FIFO threshold interrupts/events, 2 hardware triggers (available from event fabric)
(1) Available only on some devices.
(3) Dual DAC channels are planned for future MSPM0G devices.

DAC12 code examples

Information about DAC12 code examples can be found in the MSPM0 SDK examples guide.