topic LPC1769 I2C SCL in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/LPC1769-I2C-SCL/m-p/519794#M3347 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by odel1830 on Thu Feb 27 11:53:49 MST 2014</STRONG><BR /><SPAN>I was wondering if you had to enable the SCL on I2C in order for it to clock or does it have a default that it clocks at?</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:40:46 GMT lpcware 2016-06-15T17:40:46Z LPC1769 I2C SCL https://community.nxp.com/t5/LPC-Microcontrollers/LPC1769-I2C-SCL/m-p/519794#M3347 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by odel1830 on Thu Feb 27 11:53:49 MST 2014</STRONG><BR /><SPAN>I was wondering if you had to enable the SCL on I2C in order for it to clock or does it have a default that it clocks at?</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:40:46 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC1769-I2C-SCL/m-p/519794#M3347 lpcware 2016-06-15T17:40:46Z Re: LPC1769 I2C SCL https://community.nxp.com/t5/LPC-Microcontrollers/LPC1769-I2C-SCL/m-p/519795#M3348 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by LabRat on Thu Feb 27 12:32:54 MST 2014</STRONG><BR /><SPAN>UM10360:</SPAN><BR /><HR /><SPAN style="color: #0000ff;"><STRONG>Quote: </STRONG><BR />19.1 Basic configuration<BR />The I2C0/1/2 interfaces are configured using the following registers:<BR />1. Power: In the PCONP register (Table 46), set bit PCI2C0/1/2.<BR />Remark: On reset, all I2C interfaces are enabled (PCI2C0/1/2 = 1).<BR />2. Clock: In PCLKSEL0 select PCLK_I2C0; in PCLKSEL1 select PCLK_I2C1 or<BR />PCLK_I2C2 (see Section 4.7.3).</SPAN><HR /><BR /><BR /><SPAN>So after switching I2C on in PCONP I2C clock is enabled with default setting in PCLKSEL1(0=CCLK).</SPAN><BR /><SPAN>In PCLKSEL1 you can select a slower clock (CCLK/2,CCLK/4 or CCLK/8)...</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:40:47 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC1769-I2C-SCL/m-p/519795#M3348 lpcware 2016-06-15T17:40:47Z