LPC Microcontrollers中的主题 LM75a I2C Problem https://community.nxp.com/t5/LPC-Microcontrollers/LM75a-I2C-Problem/m-p/541432#M12276 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Wimmer_M on Mon May 25 08:58:34 MST 2015</STRONG><BR /><SPAN>Hello,</SPAN><BR /><BR /><SPAN>i have some problems with reading Temperatur from LM75a over I2c.</SPAN><BR /><SPAN>I used the LPCXpresso LPC11C24 Development Board and the LM75A from NXP, Libary for LM75a from microBuilder.eu.</SPAN><BR /><BR /><SPAN>The wiring is i had checked.</SPAN><BR /><SPAN>When i start the projekt over the debugger i get one value from the lm75a, when i set a braikpoint and re-run it i get the next.</SPAN><BR /><SPAN>I thinked its an timing problem, (in the Datasheet from the lm75a writes that every 100ms read the registers)</SPAN><BR /><BR /><SPAN>Then i had insert a Task in the main-while, that every 200ms reading the registers from lm75a, but i have the same problem...</SPAN><BR /><BR /><SPAN>What am I doing wrong?</SPAN><BR /><BR /><BR /><BR /><SPAN>With best regards</SPAN><BR /><SPAN>Markus</SPAN><BR /><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-338133">can.zip</A></STRONG></P></BODY></HTML> Wed, 15 Jun 2016 19:42:40 GMT lpcware 2016-06-15T19:42:40Z LM75a I2C Problem https://community.nxp.com/t5/LPC-Microcontrollers/LM75a-I2C-Problem/m-p/541432#M12276 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Wimmer_M on Mon May 25 08:58:34 MST 2015</STRONG><BR /><SPAN>Hello,</SPAN><BR /><BR /><SPAN>i have some problems with reading Temperatur from LM75a over I2c.</SPAN><BR /><SPAN>I used the LPCXpresso LPC11C24 Development Board and the LM75A from NXP, Libary for LM75a from microBuilder.eu.</SPAN><BR /><BR /><SPAN>The wiring is i had checked.</SPAN><BR /><SPAN>When i start the projekt over the debugger i get one value from the lm75a, when i set a braikpoint and re-run it i get the next.</SPAN><BR /><SPAN>I thinked its an timing problem, (in the Datasheet from the lm75a writes that every 100ms read the registers)</SPAN><BR /><BR /><SPAN>Then i had insert a Task in the main-while, that every 200ms reading the registers from lm75a, but i have the same problem...</SPAN><BR /><BR /><SPAN>What am I doing wrong?</SPAN><BR /><BR /><BR /><BR /><SPAN>With best regards</SPAN><BR /><SPAN>Markus</SPAN><BR /><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-338133">can.zip</A></STRONG></P></BODY></HTML> Wed, 15 Jun 2016 19:42:40 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LM75a-I2C-Problem/m-p/541432#M12276 lpcware 2016-06-15T19:42:40Z