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I2C FORCE_HW

 
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gjs_rsdi



Joined: 06 Feb 2006
Posts: 468
Location: Bali

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I2C FORCE_HW
PostPosted: Fri Jan 31, 2020 4:38 am     Reply with quote
Hi

I initialize I2C as below:
Code:
#use I2C(MASTER, Slow=50000, I2C1, FORCE_HW, STREAM=I2CPORT)

&
Code:
#use I2C(MASTER, Slow=50000, I2C1, STREAM=I2CPORT)

I checked both LST files and they are identical except the two lines above

My question is:
Need to specify FORCE_HW or not if I am using the port name?

Best wishes
Joe
Ttelmah



Joined: 11 Mar 2010
Posts: 19236

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PostPosted: Fri Jan 31, 2020 4:51 am     Reply with quote
No.

Using the physical port name on all of the peripherals (SPI, UART, I2C),
is equivalent to specifying the hardware pins, _and_ specifying 'FORCE_HW'.
gjs_rsdi



Joined: 06 Feb 2006
Posts: 468
Location: Bali

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PostPosted: Fri Jan 31, 2020 5:43 am     Reply with quote
Thank you Ttelmah, helpful like always Smile

Best wishes
Joe
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