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SPI Soft Bit order

 
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StefanHamburg

Bascom Member



Joined: 02 Mar 2008
Posts: 73
Location: Germany

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PostPosted: Mon Nov 10, 2014 10:05 am    Post subject: SPI Soft Bit order Reply with quote

Hello,
one question regarding the configuration for Soft-SPI:

In BASCOM-8051 the Help says
Quote:
CONFIG SPI = SOFT, DIN = PIN, DOUT = PIN , CS = PIN, CLK = PIN ,DATA ORDER = DO, NOCS =

Quote:
DATA ORDER

Use MSB or LSB. With MSB, MS bit will be sent first. LSB option will send the LS bit first.


whereas in BASCOM-AVR the Help says:
Quote:
Syntax for software SPI

CONFIG SPI|SPISOFT = SOFT, DIN = PIN, DOUT = PIN , SS = PIN|NONE, CLOCK = PIN , SPIIN=value , MODE=mode


How can I configure the Bitorder in BASCOM AVR for Soft-SPI?
(I understand that MODE is for configuring cpol and cpha)
Thank you
Regards
Stefan

(BASCOM-AVR version : 2.0.7.7 )
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albertsm

Administrator



Joined: 09 Apr 2004
Posts: 5207
Location: Holland

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PostPosted: Mon Nov 10, 2014 10:46 am    Post subject: Reply with quote

hi Stefan

The soft spi is MS bit first. And this is fixed. But if you require it,send me a private email and we can discuss it.

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