Wire. Also, in spite of having changed the frequency to both 100 and 400 kHz i have this weird 1.953 kHz clock. Starts fine, then appears to go wonky, after a few of these wonky bursts the lines go silent. It’s a trade-off between pins and communication speed. While I2C requires only two pins and can be shared with other I2C peripherals. This is how the messed up I2C line looks in both cases. SPI is generally faster than I2C but requires more Arduino pins. He asks why Arduino forked Wiring instead of continuing to work with him, and the. Compiled fine, loaded the binary and got the same behaviour. He probably (naïvely) expected to get more credit from his former advisor, or even get invited along on the ride. Second attempt was with the cores from Drazzy ATTinycore which came with its own Wire library. You need at least two files for a library: a header file (w/ the extension. Compiled fine, loaded the binary with avrdude, got a few first TWI communication fine, then it started trashing. This document explains how to create a library for Arduino. So i went into C:\Program Files\Arduino\hardware\arduino\avr\libraries, grabbed the Wire folder and copied it into C:\Program Files\Arduino\libraries. It is mounted on my own board (which worked fine if I dropped an ATMega instead).Įdited - prev screencapture were from an ungrounded logic analyzerįirst tried the Femtocow ATTiny - it has complained about no Wire library at the #include Wire.h line. This is the MCU: - it advertises a hardware I2C interface, but I am struggling with it.
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