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PA_papa_wolf
Joined: 11 Nov 2019
Posts: 9
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| I cannot use I2C.(16F18854) |
 Posted: Sun Oct 25, 2020 12:45 am |
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I want to use I2C (both master/slaves) in PIC.
An error was given at slave I2C when I wrote a code.
”Error#99 Option invalid Wrong pins for H/W”
| Code: |
#include <16F18854.h>
#include <string.h> //strcmp()
#Fuses RSTOSC_LFINTRC,NOCLKOUT,NOBROWNOUT,NOMCLR,CPD // code protect
#use delay(internal=4000000)
#use rs232(baud=9600, xmit=PIN_A0, rcv=PIN_E3, stream=UPPER)
#use I2C(master, sda=PIN_A2, scl=PIN_A1) //master I2C software
#use I2C(slave, sda=PIN_C4, scl=PIN_C3, address=0xa0) //slave I2C HW
void main() {
}
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I think that I do not get a wrong pin designation, is it misunderstanding?
Or is it a mistake of the setting? |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Sun Oct 25, 2020 1:04 am |
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Modern PICs often require #pin_select. See the "Sticky" post at the top
of the forum.
Do this:
| Code: | #pin_select SCL1OUT = PIN_C3
#pin_select SCL1IN = PIN_C3
#pin_select SDA1OUT = PIN_C4
#pin_select SDA1IN = PIN_C4
#use I2C(slave, sda=PIN_C4, scl=PIN_C3, address=0xa0) |
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PA_papa_wolf
Joined: 11 Nov 2019
Posts: 9
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| Posted: Sun Oct 25, 2020 1:35 am |
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| I was able to solve a problem. It is very kind of you. |
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