8-bit MicrocontrollersのトピックRe: Software SCI Receiver for MC9S08QG4 (8 Pin PDIP)

Software SCI Receiver for MC9S08QG4 (8 Pin PDIP)

datamstr — Sat, 06 Sep 2008 23:06:04 GMT

Hi All,

I am looking for some 'C' code to do a Software SCI Receiver for the MC9S08QG4 (8 Pin PDIP).
The serial communication parameters are 9600,8,n,1. I only need to receive six bytes and there is no need to transmit serial data.

TIA,
David

Re: Software SCI Receiver for MC9S08QG4 (8 Pin PDIP)

fabio — Mon, 08 Sep 2008 01:47:39 GMT

Hi,

There is a full functional example showing how to do this in my book: HCS08 Unleashed . You can also download the examples at: www.sctec.com.br/hcs08.

Best regards,

Re: Software SCI Receiver for MC9S08QG4 (8 Pin PDIP)

datamstr — Mon, 08 Sep 2008 04:41:10 GMT

Hi Fabio,

I looked at the code examples from your book, but do not see a Software SCI Receiver.
Can you please point that out to me?

Thanks,
David

Re: Software SCI Receiver for MC9S08QG4 (8 Pin PDIP)

fabio — Mon, 08 Sep 2008 06:16:32 GMT

Example 9.15 shows how to implement a bitbanged SCI (both TX and RX sides) using one TPM channel for each side.

Best regards,

Re: Software SCI Receiver for MC9S08QG4 (8 Pin PDIP)

RogerSchaefer — Wed, 10 Sep 2008 23:20:33 GMT

I have a short assembly subroutine for the 8 pin MC68HC908QT4 but you would have to adjust the timing loops for the different clock speed.

Roger Schaefer

http://www.rasmicro.com/

Re: Software SCI Receiver for MC9S08QG4 (8 Pin PDIP)

datamstr — Thu, 11 Sep 2008 00:40:15 GMT

Hi Fabio,

Thanks, I was looking through Chapter 11 instead.

David