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CHESTER-X14

This article describes the CHESTER-X14 extension module.

Module Overview​

CHESTER-X14 provides support for 10/100 Ethernet connectivity. It also comes with a built-in step-down with support of up to 28 V.

CHESTER Pin Configuration Diagram​

CHESTER-X14 terminal block pinout: INT, +V, +VIN, GND, Rx-, Rx+, Tx-, Tx+ on pins 1-8

Pin Configuration and Functions​

PositionSignal NameSignal Description
1INTInterrupt signal
2+VSystem positive rail (*)
3+VINStep-down input voltage
4GNDSystem ground signal
5Rx-Ethernet signal
6Rx+Ethernet signal
7Tx-Ethernet signal
8Tx+Ethernet signal

*Note: The system positive rail voltage depends on CHESTER power supply option.

Interrupt Pin​

The module provides an interrupt output (pin 1), which needs to be connected to the INT pin on the CHESTER mainboard.

CHESTER mainboard drawing with a wire linking the slot B INT terminal to the module interrupt pin

  • Example of interrupt connection for module in slot B

CHESTER SDK usage​

CHESTER-X14 can be used as part of the CHESTER SDK using the ctr_x14_a and ctr_x14_b shields, or hardware-chester-x14-a and hardware-chester-x14-b Project Generator features.

Schematic diagram​

A schematic diagram is useful if you program low-level hardware-related code or if you're just curious about how the system is designed.

Schematic of the CHESTER-X14 Ethernet interface built around the W5500 controller and magnetics Schematic of the CHESTER-X14 step-down converter based on the TPS62933 regulator

Module Drawing​

CHESTER-X14 R1.0 board layout drawing with component placement and edge pin labels