SBW-Adapter
grumat·glossy-msp430·Hardware/SBW-Adapter/SBW-Adapter.kicad_pcb
About the SBW-Adapter PCB
SBW-Adapter is an open source PCB design by grumat, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 22.2 × 19.1 mm, with 6 components from 6 distinct parts.
By type, the board carries 2 connectors, 2 switches, 1 capacitor and 1 resistor.
It belongs with the usb & debug tools designs in this gallery.
From the project
Glossy MSP430 - Embedded GDB Debugger for MSP430
This is a simple adapter board that is used to facilitate the wiring for Spi-bi-Wire interface, proving a more robust interface.
The schematics is quite simple and shown below:
The board has two switches to allow for specific use.
One switch allows you to select the function of the TVCC pin. One option is to use it as power supply for the daughter board and the other option it is configured as voltage reference of a self powered daughter board.

SBW-Adapter bill of materials (BOM)
6 components, 6 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | JTAG | PinSocket_2x07_P2.54mm_Horizontal | J1 |
| 1 | SpyBiWire | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J2 |
| 1 | PWR_SEL | SW_SPDT_PCM12 | SW1 |
| 1 | TI_OLX | SW_SPDT_PCM12 | SW2 |
| 1 | 100NF 100nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 47K 330 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
SBW-Adapter design files
The KiCad project lives in the grumat/glossy-msp430 repository on GitHub; these links point at the commit this page was built from.
SBW-Adapter: common questions
How big is the SBW-Adapter PCB?
The SBW-Adapter measures 22.2 × 19.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the SBW-Adapter?
6 components, from 6 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the SBW-Adapter design files?
From the grumat/glossy-msp430 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the SBW-Adapter design in my own project?
Yes, under the terms of its GPL-2.0 license, which grumat chose for the repository.
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