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I2C @ PB6/PB7 Scan available addresses, read/write data directly or over DMA Proto: i0..2 - setup I2C with lowest..highest speed (7.7, 10 and 100kHz) Ia addr - set I2C address Ig - dump content of I2Cbuf Iw bytes - send bytes (hex/dec/oct/bin) to I2C IW bytes - the same over DMA Ir reg n - read n bytes from I2C reg I2 reg16 n - read n bytes from 16-bit register In n - just read n bytes IN n - the same but with DMA Is - scan I2C bus U - send long buffer over USART