MSP-EXP430FR2355 TI MSP-EXP430FR2355 Microcontroller Development Kit
- FRAM Memory: 32KB nonvolatile storage with 10^15 write cycles and 100ns write speed.
- Ultra-Low-Power Modes: Measure down to µA with 32.768kHz crystal for LPM sleep states.
- BoosterPack™ Ready: 40-pin headers support 100+ plug-in modules (wireless, displays, etc.).
- Integrated Debugging: eZ-FET probe enables programming + EnergyTrace power profiling.
- Sensor Hub: Includes ambient light sensor + Grove connector (P1.1/P1.4) for Seeed Studio modules.
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The MSP-EXP430FR2355 LaunchPad Kit is Texas Instruments’ flagship evaluation platform for the ultra-low-power MSP430FR2355 MCU, combining 32KB FRAM memory with advanced analog peripherals. Designed for battery-operated IoT, data logging, and industrial control, this kit includes an eZ-FET debug probe, Grove sensor connector, and BoosterPack™ expansion. Its EnergyTrace™ technology and flexible clocking options make it ideal for optimizing power efficiency down to microamps.
Specifications
MSP430FR2355 MCU Specifications
| Parameter | Details |
|---|---|
| Core | 16-bit MSP430 RISC (up to 24MHz) |
| Memory | 32KB FRAM + 4KB RAM + 512B Info FRAM |
| Analog Peripherals | 12-bit ADC, 4× SAC-L3, 2× Comparator w/ 6-bit DAC |
| Power Range | 1.8V – 3.6V |
| GPIOs | 44 pins (LQFP-48 package) |
LaunchPad Kit Hardware
| Feature | Functionality |
|---|---|
| Debug Interface | Onboard eZ-FET (Spy-Bi-Wire) |
| Current Measurement | J101 jumper isolates 3V3 rail for µA measurements |
| Clock Sources | 32.768kHz crystal + DCO (1MHz default) |
| Expansion | 40-pin BoosterPack headers + Grove connector |
Advanced Applications & Measurements
Ultra-Low-Power Current Measurement
- Isolate Power Rail: Remove J101 3V3 jumper and connect an ammeter.
- Minimize Leakage:
- Ensure no floating GPIOs (pull high/low or drive outputs).
- Disable UART backchannel if unused (jumper J102).
- Stable Readings: Measure during quiescent states (LPM modes).
- EnergyTrace Alternative: Compare dynamic profiles in Code Composer Studio™.
External MCU Debugging
- Disconnect all J101 jumpers to isolate the MSP430FR2355.
- Wire SBWTCK/SBWTDIO to target MCU (ensure RST cap ≤ 2.2nF).
- Power options: 3.3V (for MSP430) or 5V (for peripherals).
BoosterPack Compatibility
- Standard 40-pin headers adhere to TI’s LaunchPad ecosystem.
- Verify compatibility using BoosterPack Checker Tool (TI website).
- Resolve conflicts via software pin remapping (see datasheet).
Applications
- Energy Harvesting: FRAM’s low-power writes extend battery life.
- Industrial Sensors: SAC-L3 op-amps enable signal conditioning.
- Secure Data Logging: FRAM retains data during power loss.
- Educational Labs: Grove ecosystem accelerates prototyping.
Comparison with Competing Kits
| Feature | MSP-EXP430FR2355 | STM32 Nucleo | Arduino MKR |
|---|---|---|---|
| Memory Tech | FRAM (nonvolatile) | Flash + EEPROM | Flash |
| Power Analysis | EnergyTrace™ | STM32CubeMonitor | None |
| Analog | 12-bit ADC + SAC-L3 | 12-bit ADC | 10-bit ADC |
| Ecosystem | BoosterPack™ | Arduino Shield | MKR Connect |
Development Resources
- Datasheet (MSP430FR2355)
- Quick Start Guide (Current measurement steps)
- BoosterPack Checker (Compatibility tool)
- Code Composer Studio™ (Free IDE download)
Kit Contents
- MSP-EXP430FR2355 LaunchPad Board
- USB Cable (Micro-B)
- Jumpers (for power isolation)
Ordering & Packaging
| Part Number | Description | Packaging |
|---|---|---|
| MSP-EXP430FR2355 | LaunchPad Development Kit | Box |
Distributors: Available at TI Store, Digi-Key, Mouser, MOZ Electronics.
Conclusion
The MSP-EXP430FR2355 LaunchPad bridges low-power engineering and rapid prototyping with its FRAM memory, EnergyTrace, and BoosterPack support. Ideal for:
- Engineers optimizing µA-range power budgets.
- Developers needing reliable nonvolatile storage.
- Educators teaching embedded systems with hands-on labs.
Pro Tip: Use the 32.768kHz crystal for lowest sleep currents (<1µA possible).
Specification: TI MSP-EXP430FR2355 Microcontroller Development Kit
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