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Author Topic: FT260 LibFT260 I2C Flags  (Read 67 times)

bludin

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FT260 LibFT260 I2C Flags
« on: October 04, 2019, 05:38:57 PM »

Which flags should be used to make a standard combined read register operation with the write and read operations respectively?

Logically, I would presume:
  • ftI2CMaster_Write with FT260_I2C_START (0x02)
and
  • ftI2CMaster_Read with FT260_I2C_REPEATED_START + FT260_I2C_STOP (0x03 | 0x04 = 0x07).

Is this correct?
« Last Edit: October 04, 2019, 06:09:29 PM by bludin »
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Re: FT260 LibFT260 I2C Flags
« Reply #1 on: October 07, 2019, 04:35:14 PM »

Hello,

Please refer to AN_395 User Guide for LibFT260.

There are also software examples provided with LibFT260 download.

Best Regards,
FTDI Community
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bludin

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Re: FT260 LibFT260 I2C Flags
« Reply #2 on: October 07, 2019, 05:27:25 PM »

AN_395 doesn't explain how to use the I2C flags for a read-from-register (=combined write/read operation) and the examples do not contain this either, as far as I can see.
I would expect to work the way I outlined it in my initial post, however, it is confusing that there is only an enumeration for FT260_I2C_START_STOP but not for FT260_I2C_REPEATED_START_STOP.

Thanks for your help,
Beat
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