1.6 KiB
| layout | board_id | title | name | manufacturer | board_url | board_image | date_added | family | features | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| download | silicognition_rp2040_shim | RP2040-Shim Download | RP2040-Shim | Silicognition LLC |
|
silicognition-rp2040-shim.jpg | 2022-07-01 | rp2040 |
|
This board is an alternative to the Silicognition M4-Shim, and just like that board it is specifically made to fit on top of the PoE-FeatherWing, filling the empty space around the RJ45 and flyback transformer and allowing the creation of extremely compact Power over Ethernet systems.
Since the ATSAMD51J19 used on the M4-Shim is pretty much unobtainium right now, I needed to provide an alternative, and with good availability and popularity of the RP2040 this chip seemed like a natural choice. You get dual ARM Cortex-M0+ @ 133 MHz, 264 kB on-chip SRAM, PIO and 4 MB of QSPI flash!
The RP2040 comes with built-in UF2 bootloader, and the board has CircuitPython with Wiznet W5500 drivers pre-installed, plus a poe_featherwing.py module that sets the Ethernet connection up for you.
A special feature of this board is a custom chip to enable the familiar single-press to reset, double-press for bootloader button! So from a user experience point of view, it behaves the same as the M4-Shim.