Colin McGuire

HCS12 (MC9S12C32) Pin Output Voltage

Discussion created by Colin McGuire on Feb 25, 2008
Latest reply on Mar 9, 2008 by Colin McGuire
Hey guys,

I am working using the SCM-12C32 HCS12 module on a Freescale AXM-0392 development board.

I have found my output voltages on pins such as PORTA-0 and PORTB-4 are about 600mV P2P. According to the data sheet this figure should be about 4.2V.

The problem is I could do with this higher voltage and would like to avoid messing around with amplifiers etc.

Does anyone have any ideas why the output voltages are so low?

I have tried setting the RDRIV register to 0x00 incase that effected it but no luck.

Thanks again in advance,


Message Edited by Deadstar on 2008-02-25 04:43 PM