https://community.nxp.com/t5/LPC-Microcontrollers/i2c0-fails-on-port-1-lpc4088/m-p/584601#M21071 <HTML><HEAD></HEAD><BODY><P>When the lpc4088 or lpc4078 is configured to use port 1 pin 30 and 31 for i2c0 the device enters a busy state after the function&nbsp; tmp = Chip_I2C_MasterSend(I2C0, hdmi_xfer.slaveAddr, hdmi_xfer.txBuff, hdmi_xfer.txSz); is executed.</P></BODY></HTML> Fri, 02 Sep 2016 01:08:01 GMT kennethedlow 2016-09-02T01:08:01Z https://community.nxp.com/t5/LPC-Microcontrollers/i2c0-fails-on-port-1-lpc4088/m-p/584601#M21071 <HTML><HEAD></HEAD><BODY><P>When the lpc4088 or lpc4078 is configured to use port 1 pin 30 and 31 for i2c0 the device enters a busy state after the function&nbsp; tmp = Chip_I2C_MasterSend(I2C0, hdmi_xfer.slaveAddr, hdmi_xfer.txBuff, hdmi_xfer.txSz); is executed.</P></BODY></HTML> Fri, 02 Sep 2016 01:08:01 GMT https://community.nxp.com/t5/LPC-Microcontrollers/i2c0-fails-on-port-1-lpc4088/m-p/584601#M21071 kennethedlow 2016-09-02T01:08:01Z https://community.nxp.com/t5/LPC-Microcontrollers/i2c0-fails-on-port-1-lpc4088/m-p/584602#M21072 <HTML><HEAD></HEAD><BODY><P>Hi Kenneth,</P><P>&nbsp;&nbsp;&nbsp; When you run the I2C0 code on LPC4088, do you connect it with the according I2C slave device?</P><P>&nbsp;&nbsp;&nbsp; Please check the I2C communication wave, when the master send data, does slave give ACK feed back?</P><P></P><P></P><P></P><P><BR />Have a great day,<BR />Jingjing</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 06 Sep 2016 05:24:36 GMT https://community.nxp.com/t5/LPC-Microcontrollers/i2c0-fails-on-port-1-lpc4088/m-p/584602#M21072 kerryzhou 2016-09-06T05:24:36Z