As far as we can tell, in the MSP430F543# line, the hardware I2C modes always consume more power than bit banged because they leave the lines pulling against the resistors far to long. Also, the trailing edge of the clock pulse is dangerously close to the change of the data line.
I2C Master Bit Banged code from Dan Bloomquist as posted to msp430@yahoogroups.com
file: /Techref/ti/msp430/iics.htm, 0KB, , updated: 2009/9/14 14:20, local time: 2024/8/21 15:31,
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Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232! |
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