LPC MicrocontrollersのトピックUsing GPIO to simulate I2C? https://community.nxp.com/t5/LPC-Microcontrollers/Using-GPIO-to-simulate-I2C/m-p/613962#M24010 <HTML><HEAD></HEAD><BODY><P>Is that possible to use GPIO to simulate I2C in LPC18xx? It seem NXP don't allow the GPIO to be configured as both input and output.</P></BODY></HTML> Thu, 02 Mar 2017 04:00:20 GMT lidouhe 2017-03-02T04:00:20Z Using GPIO to simulate I2C? https://community.nxp.com/t5/LPC-Microcontrollers/Using-GPIO-to-simulate-I2C/m-p/613962#M24010 <HTML><HEAD></HEAD><BODY><P>Is that possible to use GPIO to simulate I2C in LPC18xx? It seem NXP don't allow the GPIO to be configured as both input and output.</P></BODY></HTML> Thu, 02 Mar 2017 04:00:20 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Using-GPIO-to-simulate-I2C/m-p/613962#M24010 lidouhe 2017-03-02T04:00:20Z Re: Using GPIO to simulate I2C? https://community.nxp.com/t5/LPC-Microcontrollers/Using-GPIO-to-simulate-I2C/m-p/613963#M24011 <HTML><HEAD></HEAD><BODY><P>Hi Lidou,</P><P></P><P>The LPC18xx contains the below features that you can use:</P><P>– One Fast-mode Plus I2C-bus interface with monitor mode and with open-drain I/O pins conforming to the full I2C-bus specification. Supports data rates of up to 1 Mbit/s.</P><P>– One standard I2C-bus interface with monitor mode and standard I/O pins.</P><P></P><P>However,&nbsp; it is possible to implement a GPIO to simulate I2C, but you need to create your own algorithm and change the pin configuration between output and input every time you need.</P><P>Have a nice day!</P><P><BR />Have a great day,</P><P>Sol </P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Mon, 06 Mar 2017 20:12:35 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Using-GPIO-to-simulate-I2C/m-p/613963#M24011 soledad 2017-03-06T20:12:35Z