ADS8344 and HCS12

May 10, 2006 2 Replies

(*HOW*) can I connect the A/D converter ADS8344 (16-bit out) to the SPI



module of the MC9S12C32 (ChipS12 / HCS12)?



It appears quite illogical to me that a 16-bit signal can be acceppted and understood by an 8-bit SPI modul, but I am still hoping I got something wrong, there is a misunderstanding or even better some trick to get around this problem? After all this =B5C is a 16-bit controller... ?!


I am very thankful for any constructive suggestion what-so-ever!



(*HOW*) can I connect the A/D converter ADS8344 (16-bit out) to the SPI

module of the MC9S12C32 (ChipS12 / HCS12)?

It appears quite illogical to me that a 16-bit signal can be acceppted and understood by an 8-bit SPI modul, but I am still hoping I got something wrong, there is a misunderstanding or even better some trick to get around this problem? After all this =B5C is a 16-bit controller... ?!

I am very thankful for any constructive suggestion what-so-ever!

Arg: Crossposting and a nerveous finger so you send the message multiple times...

The ADS8344 needs 24/25/32 clocking steps. The 32 bit transfer can be constucted by 4 8 bit transfers.

Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

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