Silicon Laboratories M88 User Manual
Silicon Laboratories M88 User Manual

Silicon Laboratories M88 User Manual

Evaluation kit
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M88 Evaluation Kit
USER GUIDE
STO-DEV7227-HB REV. 2.1
© 2019 Silicon Labs, Inc. All Rights Reserved.

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Summary of Contents for Silicon Laboratories M88

  • Page 1 M88 Evaluation Kit USER GUIDE STO-DEV7227-HB REV. 2.1 © 2019 Silicon Labs, Inc. All Rights Reserved.
  • Page 2 M88 Evaluation Kit User Guide Revision History Revision History Document: STO-DEV7227-HB M88 Evaluation Kit User Guide Rev Date Comment 2016-10-17 Included in FW release v1.0.0 2016-11-11 Included in FW release v1.0.1 and v1.0.2 2016-12-09 2017-02-16 Included in FW release v1.0.6 2017-03-07 Included in FW release v1.0.7...
  • Page 3 M88 Evaluation Kit User Guide Revision History Rewrote first section for clarity. Added pin descriptions to on-board connectors Changes in Rev 1.2 Section Changes since previous revision Removed restrictions in previous FW version. 12.1 Added values for which voltage control range to use.
  • Page 4: Table Of Contents

    Connecting to the board ......................... 21 Application examples ........................21 13.1 Set up the M88 Evaluation Kit as a E2E, Multicast PTP slave ............. 21 13.2 Set up the M88 Evaluation Kit as a E2E, Unicast PTP slave ............22 Using the PTP engine ........................
  • Page 5 M88 Evaluation Kit User Guide List of Figures List of Figures Figure 1. M88 Evaluation Kit (without Oscillator and GNSS add-on boards)..........7 Figure 2. M88 Evaluation Kit block diagram ....................9 Figure 3. M88 Evaluation Kit front side connector placement..............10 Figure 4.
  • Page 6 Table 12. Oscillator Add-on Board System Connector pin description............15 Table 13. M88 Evaluation Kit input selection jumpers - Grey options are default factory settings ... 17 Table 14. M88 Evaluation Kit reference selection jumpers - Grey options are default factory settings..18 Table 15.
  • Page 7: About This Document

    1 About this Document This document describes the use of the M88 Evaluation Kit. Its purpose is to help a user to set up the board electrically and mechanically and how to communicate to it. It’s not a complete guide for all functionality provided by the M88 module it’s carrying.
  • Page 8: Before You Begin

    The board can also be powered by a PoE switch if connected to Port 1. This will supply adequate power in most cases except for when a large OCXO is used on an add-on board. The M88 Evaluation Kit has onboard regulators to provide all necessary voltages for the components on the M88 Evaluation Kit including the M88.
  • Page 9: Figure 2. M88 Evaluation Kit Block Diagram

    M88 Evaluation Kit User Guide Block diagram Figure 2. M88 Evaluation Kit block diagram STO-DEV7227-HB Rev. 2.1...
  • Page 10: Front Side Connectors

    M88 Evaluation Kit User Guide Front side connectors 7 Front side connectors ToD/ 1PPS Port 1 Figure 3. M88 Evaluation Kit front side connector placement. Name Type Description FREQOUT SMA female Synthonized frequency selectable through SW 5/10/20/25 MHz OUT1 -/+ SMA female Configurable low jitter frequency output.
  • Page 11: Back Side Connectors

    M88 Evaluation Kit User Guide Back side connectors 8 Back side connectors Port 2 ToD/ 1PPS Figure 4. M88 Evaluation Kit back side connector placement. Name Type Description 5V DC DC jack 5.5/2.5 mm 5V power supply, center plus. Current needed depends on add-on boards.
  • Page 12: Additional Connectors

    M88 Evaluation Kit User Guide Additional connectors 9 Additional connectors Figure 5. M88 Evaluation Kit board-top connector placement. STO-DEV7227-HB Rev. 2.1...
  • Page 13: Connector Pin Descriptions

    COM2. P502 is wrongly marked COM_0 on early PCB versions. P503 6-pin header COM1 P508 10-pin header CB Pro FP interface for the Si5348 on M88 P509 10-pin header SPI MASTER. Connect a SPI slave here P510 10-pin header SPI SLAVE. Connect a SPI master here...
  • Page 14: Table 6. Cb Pro Fp Connector Pin Description

    M88 Evaluation Kit User Guide Additional connectors 9.1.3 CB Pro FP Signal Signal GSICK GSSIN GSSIO PLL_SS_CS 10 Table 6. CB Pro FP connector pin description 9.1.4 SPI Master Signal Signal GSICK GSSIN GSSIO SPI_SS_CS Table 7. SPI Master connector pin description 9.1.5 SPI Slave...
  • Page 15: Table 11. Gnss Add-On Board System Connector Pin Description

    M88 Evaluation Kit User Guide Additional connectors 9.1.8 GNSS Add-on Board System Connector Signal Signal VBAT 3.3V Reserved. NC PF6 Pull-up Reserved. NC UTX1 Reserved. NC URX1. Jumper P505 decides if RX for COM1 is taken from here or from the COM1 connector P503.
  • Page 16: Jumpers

    M88 Evaluation Kit User Guide Jumpers 10 Jumpers Inputs Reference COM, TOD, PPS Outputs Figure 6. M88 Evaluation Kit jumper placement overview STO-DEV7227-HB Rev. 2.1...
  • Page 17: Inputs

    125MHz from Port 1 125 MHz from Port2 P312, P315 Select single ended or differential input on IN1 P312 Single ended P315 Differential Table 13. M88 Evaluation Kit input selection jumpers - Grey options are default factory settings STO-DEV7227-HB Rev. 2.1...
  • Page 18: Reference

    Jumper Selects position P307 Select M88 CLK_REF input REF on SMA On-board oscillator Add-on board oscillator P303 Select on-board oscillator X301 X302 Table 14. M88 Evaluation Kit reference selection jumpers - Grey options are default factory settings STO-DEV7227-HB Rev. 2.1...
  • Page 19: Outputs

    Select M88 PPSIN_1 1PPSIN SMA GNSS Add-on board TOD/1PPSIN RJ45 P402 Select M88 PPSIN_0 1PPSIN SMA GNSS Add-on board TOD/1PPSIN RJ45 Table 16. M88 Evaluation Kit COM, TOD and PPS selection jumpers - Grey options are default factory settings. STO-DEV7227-HB Rev. 2.1...
  • Page 20: Add-On Boards

    M88 Evaluation Kit User Guide Add-on boards 11 Add-on boards 11.1 Oscillator board Silicon Labs provides optional oscillator board carrying a high-quality oscillator. To select the oscillator on the add-on board as reference source, move jumper P307 to pin 5-6. On the add-on board, allow for voltage control of the oscillator by moving the jumper P102 on the add-on board to pin 2-3.
  • Page 21: Enabling The Gnss Led

    Carrier Grade Multi-Sync Gateway and PTP Grandmaster (see [2]) 13.1 Set up the M88 Evaluation Kit as a E2E, Multicast PTP slave Here’s a guide on how to set up the Qg 2 as Grandmaster and get the M88 Evaluation Kit to synchronize to the Qg 2.
  • Page 22: Set Up The M88 Evaluation Kit As A E2E, Unicast Ptp Slave

    Off. 13.1.2 Setting up the M88 Evaluation Kit 1. Connect Port 1 of the M88 Evaluation Kit to Port 1 of the Qg 2. Either directly or through a switch. 2. Make sure the M88 has a link (Port 1 refers to enet0 and Port 2 to enet1) A:/root>...
  • Page 23 7. On the PTP→Clock page, make sure Domain Number is set to 0. 13.2.2 Setting up the M88 Evaluation Kit 1. Connect Port 1 of the M88 Evaluation Kit to Port 1 of the Qg 2. Either directly or through a switch.
  • Page 24: Using The Ptp Engine

    Detailed information about how to interact with the PTP engine can be found in [1] which can be downloaded from our web site. Any commands that the M88 should execute at startup, such as setting message rates etc. can be stored in the startup.ini file under the systems folder.
  • Page 25: Using The Pll

    Usage: pll control output <outpin_num> <command> [parameters] Enable or disable the specified output. 16 Further configuration of the M88 Evaluation Kit For details on how to configure and control the PLL section of the M88, see [1]. STO-DEV7227-HB Rev. 2.1...
  • Page 26: Updating Firmware On M88 Evaluation Kit

    M88 Evaluation Kit User Guide Updating firmware on M88 Evaluation Kit 17 Updating firmware on M88 Evaluation Kit Please refer to [4] on various ways to update the FW on the M88 Evaluation Kit. 18 References [1] STO‐DEV7210-AL M88 Module Design Manual...
  • Page 27 Trademark Information Silicon Laboratories Inc.®, Silicon Laboratories®, Silicon Labs®, SiLabs® and the Silicon Labs logo®, Bluegiga®, Bluegiga Logo®, ClockBuilder®, CMEMS®, DSPLL®, EFM®, EFM32®, EFR, Ember®, Energy Micro, Energy Micro logo and combinations thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZRadio®, EZRadioPRO®, Gecko®, Gecko OS, Gecko OS Studio, ISOmodem®, Precision32®, ProSLIC®, Simplicity Studio®, SiPHY®, Telegesis, the Telegesis Logo®, USBXpress®...

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