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Switch twi.c to fastio

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This commit is contained in:
Yuri D'Elia 2021-01-29 17:51:38 +01:00
parent 1fa7b8cd8d
commit 2d71a071f0
1 changed files with 7 additions and 6 deletions
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13
Firmware/twi.c
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@ -19,17 +19,18 @@
Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
*/
#include <math.h>
#include "Arduino.h" // for digitalWrite
#include <math.h>
#include "config.h"
#include "fastio.h"
#include "twi.h"
void twi_init(void)
{
// activate internal pullups for twi.
digitalWrite(SDA, 1);
digitalWrite(SCL, 1);
WRITE(SDA_PIN, 1);
WRITE(SCL_PIN, 1);
// initialize twi prescaler and bit rate
TWSR &= ~(_BV(TWPS0) | _BV(TWPS1));
@ -44,8 +45,8 @@ void twi_init(void)
void twi_disable(void)
{
// deactivate internal pullups for twi.
digitalWrite(SDA, 0);
digitalWrite(SCL, 0);
WRITE(SDA_PIN, 0);
WRITE(SCL_PIN, 0);
}