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Remove io_atmega2560.h and some more macros

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This commit is contained in:
Alex Voinea 2020-09-11 17:43:38 +03:00
parent eb007c35d2
commit c3abd4ffe6
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GPG key ID: F5034E7CFCF2F973
12 changed files with 79 additions and 452 deletions
Firmware
swi2c.c

58
Firmware/swi2c.c
View file

@ -3,9 +3,10 @@
#include <avr/io.h>
#include <util/delay.h>
#include <avr/pgmspace.h>
#include "stdbool.h"
#include "Configuration_prusa.h"
#include "pins.h"
#include "io_atmega2560.h"
#include "fastio.h"
#define SWI2C_RMSK 0x01 //read mask (bit0 = 1)
@ -21,75 +22,75 @@ void __delay(void)
void swi2c_init(void)
{
PIN_OUT(SWI2C_SDA);
PIN_OUT(SWI2C_SCL);
PIN_SET(SWI2C_SDA);
PIN_SET(SWI2C_SCL);
WRITE(SWI2C_SDA, 1);
WRITE(SWI2C_SCL, 1);
SET_OUTPUT(SWI2C_SDA);
SET_OUTPUT(SWI2C_SCL);
uint8_t i; for (i = 0; i < 100; i++)
__delay();
}
void swi2c_start(void)
{
PIN_CLR(SWI2C_SDA);
WRITE(SWI2C_SDA, 0);
__delay();
PIN_CLR(SWI2C_SCL);
WRITE(SWI2C_SCL, 0);
__delay();
}
void swi2c_stop(void)
{
PIN_SET(SWI2C_SCL);
WRITE(SWI2C_SCL, 1);
__delay();
PIN_SET(SWI2C_SDA);
WRITE(SWI2C_SDA, 1);
__delay();
}
void swi2c_ack(void)
{
PIN_CLR(SWI2C_SDA);
WRITE(SWI2C_SDA, 0);
__delay();
PIN_SET(SWI2C_SCL);
WRITE(SWI2C_SCL, 1);
__delay();
PIN_CLR(SWI2C_SCL);
WRITE(SWI2C_SCL, 0);
__delay();
}
uint8_t swi2c_wait_ack()
{
PIN_INP(SWI2C_SDA);
SET_INPUT(SWI2C_SDA);
__delay();
// PIN_SET(SWI2C_SDA);
// WRITE(SWI2C_SDA, 1);
__delay();
PIN_SET(SWI2C_SCL);
WRITE(SWI2C_SCL, 1);
// __delay();
uint8_t ack = 0;
uint16_t ackto = SWI2C_TMO;
while (!(ack = (PIN_GET(SWI2C_SDA)?0:1)) && ackto--) __delay();
PIN_CLR(SWI2C_SCL);
while (!(ack = (!READ(SWI2C_SDA))) && ackto--) __delay();
WRITE(SWI2C_SCL, 0);
__delay();
PIN_OUT(SWI2C_SDA);
SET_OUTPUT(SWI2C_SDA);
__delay();
PIN_CLR(SWI2C_SDA);
WRITE(SWI2C_SDA, 0);
__delay();
return ack;
}
uint8_t swi2c_read(void)
{
PIN_SET(SWI2C_SDA);
WRITE(SWI2C_SDA, 1);
__delay();
PIN_INP(SWI2C_SDA);
SET_INPUT(SWI2C_SDA);
uint8_t data = 0;
int8_t bit; for (bit = 7; bit >= 0; bit--)
{
PIN_SET(SWI2C_SCL);
WRITE(SWI2C_SCL, 1);
__delay();
data |= (PIN_GET(SWI2C_SDA)?1:0) << bit;
PIN_CLR(SWI2C_SCL);
data |= (READ(SWI2C_SDA)) << bit;
WRITE(SWI2C_SCL, 0);
__delay();
}
PIN_OUT(SWI2C_SDA);
SET_OUTPUT(SWI2C_SDA);
return data;
}
@ -97,12 +98,11 @@ void swi2c_write(uint8_t data)
{
int8_t bit; for (bit = 7; bit >= 0; bit--)
{
if (data & (1 << bit)) PIN_SET(SWI2C_SDA);
else PIN_CLR(SWI2C_SDA);
WRITE(SWI2C_SDA, data & _BV(bit));
__delay();
PIN_SET(SWI2C_SCL);
WRITE(SWI2C_SCL, 1);
__delay();
PIN_CLR(SWI2C_SCL);
WRITE(SWI2C_SCL, 0);
__delay();
}
}