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Table of Contents
Disclaimer......................................................................................................................................................2
1Introduction ............................................................................................................................................3
1.1 Features.........................................................................................................................................3
2Hardware ...............................................................................................................................................4
2.1 Specifications.................................................................................................................................4
2.2 Real-Time Clock ............................................................................................................................6
2.3 Watchdog Timer ............................................................................................................................6
2.4 External Connections.....................................................................................................................6
2.4.1 External Bus .............................................................................................................................7
2.4.2 JTAG.........................................................................................................................................7
2.4.3 One-Wire / I2C..........................................................................................................................8
2.4.4 Ethernet....................................................................................................................................8
2.4.5 USB ..........................................................................................................................................9
2.4.6 SPI............................................................................................................................................9
2.4.7 MCI Multimedia Card..............................................................................................................10
2.4.8 Serial Ports.............................................................................................................................10
2.4.9 I2S ..........................................................................................................................................11
2.4.10 CAN...................................................................................................................................11
2.4.11 GPIO..................................................................................................................................12
2.5 Power Connections......................................................................................................................14
2.6 Boot Options................................................................................................................................14
2.7 Serial Flash..................................................................................................................................14
3Design Considerations.........................................................................................................................14
3.1 The EMAC SoM Carrier SoM-150ES ..........................................................................................15
3.2 Power...........................................................................................................................................15
3.2.1 Legacy....................................................................................................................................15
3.2.2 Analog Reference...................................................................................................................15
3.2.3 Shutdown Logic Pins..............................................................................................................15
3.2.4 Battery Backup .......................................................................................................................16
3.2.5 Analog Voltage .......................................................................................................................16
4Software...............................................................................................................................................17
4.1 Das U-Boot ..................................................................................................................................17
4.2 Embedded Linux..........................................................................................................................17
4.2.1 Linux with Xenomai Real Time Extensions ............................................................................17
4.2.2 Linux Packages ......................................................................................................................17
4.2.3 Linux Patches.........................................................................................................................18
4.3 Qt Creator....................................................................................................................................18
4.4 ARM EABI Cross Compiler..........................................................................................................18
