User Manual
Table Of Contents
- 1 MG21USB Dongle Guide
- 1.1 Board Description
- 1.2 USB Dongle EFR32MG21 I/O Mapping
- 1.3 USB Dongle and Host Interface
- 1.4 USB Dongle Application FW Upgrade over USB through X-Modem Bootloader
- 1.5 MG21 Bootloader mode and Reset control
- 1.6 LED Indicators
- 1.7 PTA Debug Interface
- 1.8 Using the Mini-Simplicity interface on USB Dongle
- 1.9 MG21 USB Dongle v2 Components Placement
- 1.10 MG21 USB Dongle Test Points
- 2 MG21 USB Dongle firmware flashing, debugging and PTI Network Traffic Capture
- 3 MG21USB Dongle Certifications
- 4 Document Revision History
MG21USB Dongle Guide
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1.9 MG21 USB Dongle v2 Components Placement
Below shows the component placement of the MG21 USB Dongle and the corresponding test points
Figure 1.5. USB Dongle v2 Component Placement Diagram
De-solder jumper J2 to disconnect
CP2102’s TX from EFR32’s RX
Solder J4 to allow Mini-Simplicity Connector’s TX
connected to EFR32’s RX as VCOM