This is the documentation for the latest (main) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

MAX3421E Shield

Overview

Support for expansion boards (shields) based on MAX3421E USB Peripheral/Host controller.

Sparkfun USB Host Shield

Pins Assignment of the Shield Connector

Shield Connector Pin

Function

MAX3421E Pin

D0

not connected

D1

not connected

D2

not connected

D3

not connected

D4

not connected

D5

not connected

D6

not connected

D7

RESET pin

D8

not connected

D9

INTn

24 (Interrupt Output)

D10

SPI CSn

34 (SPI Chip Select)

D11

SPI MOSI

36 (SPI Serial Data Input)

D12

SPI MISO

35 (SPI Serial Data Out)

D13

SPI SCK

37 (SPI Serial Clock Input)

D14

not connected

D15

not connected

Programming

Set -DSHIELD=sparkfun_max3421e when you invoke west build or cmake in your Zephyr application.