c - I2C Address format -

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i'm working on writing/reading data across i2c usb i2c board umft201. data sheet says default i2c address "22h". can't figure out means. when use general call address seems able write data board; think code working. i'm new c programming; not sure "22h" means.

there trick understand ftdi umft201 , ft201x chip.

it i2c slave chip.

therefore not master, obvioulsy. means need micro-controller act i2c master plugged into umft201 slave. umft201 being plugged pc, can therefore implement i2c communication form micro-controller pc. micro-controller pc i2c slave address of 22h.

you may want find evaluation board ftdi ft260 (c samples available) or device nusbio.net (c#, vb, powershell samples available) based on ftdi ft2301x both i2c master.

this make i2c communication easier can talk pc i2c slave device.

here sample talk i2c lcd screen c# or vb.net


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