#Ethernet Library for Teensy#
Wiznet chips W5100, W5200 and W5500 are automatically detected.
Efficient block mode of W5200 & W5500 are used for data and multi-byte register access.
Wiznet socket registers are cached, which greatly reduces SPI communication overhead, at the cost of a small increase in RAM usage. TCP connections and UDP packets accessed in small chunks typically see a substantial performance boost.
Adafruit's Ethernet.init(CSPIN) extension is supported, to allow use of different pins for the chip select signal. Optimized direct register I/O is used for most Arduino compatible boards.
http://www.pjrc.com/teensy/td_libs_Ethernet.html
Tested Hardware
| Board | Chip | Shield / Module | Internet | Local |
|---|---|---|---|---|
| Teensy 3.6 | W5500 | WIZ850io | 97.37 | 1190.90 |
| Teensy 3.6 | W5200 | WIZ820io | 96.65 | 1157.56 |
| Teensy 3.6 | W5100 | WIZ811MJ | 9.61 | 10.16 |
| Teensy 3.2 | W5200 | WIZ820io | 96.56 | 1030.55 |
| Teensy LC | W5500 | WIZ850io | 97.51 | 390.46 |
| Teensy 2.0 | W5100 | WIZ811MJ | 9.75 | 10.16 |
| Arduino Uno R3 | W5500 | Seeed Ethernet | 96.47 | 284.42 |
| Arduino Uno R3 | W5100 | Arduino Ethernet R3 | 9.66 | 10.17 |
| Arduino Uno R3 | W5100 | Ethernet R2 (clone) | 9.65 | 10.17 |
| Arduino Due | W5100 | Arduino Ethernet R3 | 9.72 | 10.16 |
| Arduino Due | W5500 | Seeed Ethernet | 96.42 | 378.85 |
| Arduino Zero | W5500 | Seeed Ethernet | 96.33 | 234.03 |
| Arduino 101 | W5500 | Seeed Ethernet | fail | fail |
| ChipKit Uno32 | W5500 | Seeed Ethernet | fail | fail |
| Wemos D1 (ESP8266) | W5500 | Seeed Ethernet | fail | fail |
| Mega 2560 (clone) | W5500 | Seeed Ethernet | fail | fail |
| Mega 2560 (clone) | W5100 | Ethernet R2 (clone) | fail | fail |