| .. _max3421e_shield: |
| |
| 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. |