University ProgramsのトピックTWRPI-MMA845XQ https://community.nxp.com/t5/University-Programs/TWRPI-MMA845XQ/m-p/221244#M95 <HTML><HEAD></HEAD><BODY><P>Hi, does anyone know where can I find the&nbsp;TWRPI-MMA845XQ schematics? I have looked everywhere and havent been able to find it.&nbsp;</P></BODY></HTML> Thu, 07 Jun 2012 12:23:22 GMT CatalinaDelacu1 2012-06-07T12:23:22Z TWRPI-MMA845XQ https://community.nxp.com/t5/University-Programs/TWRPI-MMA845XQ/m-p/221244#M95 <HTML><HEAD></HEAD><BODY><P>Hi, does anyone know where can I find the&nbsp;TWRPI-MMA845XQ schematics? I have looked everywhere and havent been able to find it.&nbsp;</P></BODY></HTML> Thu, 07 Jun 2012 12:23:22 GMT https://community.nxp.com/t5/University-Programs/TWRPI-MMA845XQ/m-p/221244#M95 CatalinaDelacu1 2012-06-07T12:23:22Z Re: TWRPI-MMA845XQ https://community.nxp.com/t5/University-Programs/TWRPI-MMA845XQ/m-p/221245#M96 <HTML><HEAD></HEAD><BODY><P>As I understand it, the you need to match up the datasheet info for the part itself, and what pins are available on the sockets, which is quite annoying.</P><P></P><P>If you look in&nbsp;<A href="http://cache.freescale.com/files/32bit/doc/ref_manual/TWR-K40X256-UM.pdf?fpsp=1">http://cache.freescale.com/files/32bit/doc/ref_manual/TWR-K40X256-UM.pdf?fpsp=1</A>, you'll find the socket pinout: &nbsp;</P><P></P><P>TWRPI AN0 (J8 Pin 8) ― ADC0_DP0/ADC1_DP3<BR />TWRPI AN1 (J8 Pin 9) ― ADC0_DM0/ADC1_DM3<BR />TWRPI AN2 (J8 Pin 12) ― ADC1_DP0/ADC0_DP3<BR />TWRPI ID0 (J8 Pin 17) ― ADC0_DP1<BR />TWRPI ID1 (J8 Pin 18) ― ADC0_DM1<BR />TWRPI I2C SCL (J9 Pin 3) PTC10 I2C1_SCL<BR />TWRPI I2C SDA (J9 Pin 4) PTC11 I2C1_SDA<BR />TWRPI SPI MISO (J9 Pin 9) PTB23 SPI2_SIN<BR />TWRPI SPI MOSI (J9 Pin 10) PTB22 SPI2_SOUT<BR />TWRPI SPI SS (J9 Pin 11) PTB20 SPI2_PCS0<BR />TWRPI SPI CLK (J9 Pin 12) PTB21 SPI2_SCK<BR />TWRPI GPIO0 (J9 Pin 15) PTC12 PTC12<BR />TWRPI GPIO1 (J9 Pin 16) PTB9 PTB9<BR />TWRPI GPIO2 (J9 Pin 17) PTB10 PTB10<BR />TWRPI GPIO3 (J9 Pin 18) PTC5 PTC5<BR />TWRPI GPIO4 (J9 Pin 19) PTA5 PTA5</P><P></P><P>The accelerometer has I2C pins, and two interrupt pins. &nbsp;So the only way it can work is if the I2C interface comes in on pins&nbsp;I2C1_SCL and&nbsp;I2C1_SDA. &nbsp;No idea if the interrupts map to any of the GPIO pins.</P><P></P><P>The tower system seems really well thought out, but Freescale seems to be really lacking in providing this sort of documentation.</P><P></P><P>-Jim</P></BODY></HTML> Fri, 08 Jun 2012 21:13:32 GMT https://community.nxp.com/t5/University-Programs/TWRPI-MMA845XQ/m-p/221245#M96 JamesPotts 2012-06-08T21:13:32Z Re: TWRPI-MMA845XQ https://community.nxp.com/t5/University-Programs/TWRPI-MMA845XQ/m-p/221246#M97 <HTML><HEAD></HEAD><BODY><P>Thank you very much! I agree with the lack of some documentation, but I am very well impressed with the improvements in many of the labs and tutorials documentation.</P><P>&nbsp;</P><P>Cata.</P></BODY></HTML> Sat, 09 Jun 2012 20:34:18 GMT https://community.nxp.com/t5/University-Programs/TWRPI-MMA845XQ/m-p/221246#M97 CatalinaDelacu1 2012-06-09T20:34:18Z