https://devzone.nordicsemi.com/f/nordic-q-a/18828/i2c-block-readI need to read variable length blocks from an I2C slave using a TXRX transfer. The length of the following data is given in the first read data byte, similar to SMbus Is there support for this in the TWI libraries?en-USTelligent Community 13Mon, 09 Jan 2017 13:48:26 GMThttps://devzone.nordicsemi.com/thread/72702?ContentTypeID=1Mon, 09 Jan 2017 13:48:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:808254c3-b8b8-4c85-bfa7-6d52e796d222Ole Bauck<p>Hi,</p> <p>You cannot read variable length data (with the length in the first received byte) with the twi driver/libraries. From hardware perspective it is possible (see the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/twi.html?cp=2_2_0_48_4#concept_zqr_mtv_sr">TWI peripheral</a>).</p> <p>You will have to make your own driver that supports this or in some way change the SDK driver to support this.</p> <p>Ole</p><div style="clear:both;"></div>