manitou
Senior Member+
Hardware isn't my speciality. I'm trying to get wiznet WIZ820io to work with teensy 3.0. I've run it on UNO, maple, and DUE without problems, but they have enough power to drive it (150ma+). For the teensy hooked to USB, i provided a breadboard power adaptor to provide power to the wiznet.
https://www.sparkfun.com/products/114
I measured output voltage (3.3v) and even checked current flow (150ma), and I have a commn ground. LEDs are working on the wiznet module, but the SPI logic isn't working??? I have a simple test to just read some of the ROM on the wiznet and it just returns 0's. As noted, same code/module works on UNO/maple/DUE.
what hardware magic am i missing??
https://www.sparkfun.com/products/114
I measured output voltage (3.3v) and even checked current flow (150ma), and I have a commn ground. LEDs are working on the wiznet module, but the SPI logic isn't working??? I have a simple test to just read some of the ROM on the wiznet and it just returns 0's. As noted, same code/module works on UNO/maple/DUE.
what hardware magic am i missing??