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Adapted to comments II

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This commit is contained in:
dnahm 2017-08-28 11:44:34 +02:00
parent fe15574c6b
commit b313c02c7c
1 changed files with 5 additions and 5 deletions
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10
cpu/atmega_common/periph/i2c.c
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@ -67,7 +67,7 @@ int i2c_init_master(i2c_t dev, i2c_speed_t speed)
if (CLOCK_CORECLOCK > 20000000U || CLOCK_CORECLOCK < 1000000U) {
return -2;
}
twibrr = ((CLOCK_CORECLOCK/10000)-16)/(2*4); // CLK Prescaler 4
twibrr = ((CLOCK_CORECLOCK / 10000) - 16) / (2 * 4); /* CLK Prescaler 4 */
twipb = 1;
break;
@ -75,28 +75,28 @@ int i2c_init_master(i2c_t dev, i2c_speed_t speed)
if (CLOCK_CORECLOCK > 50000000U || CLOCK_CORECLOCK < 2000000U) {
return -2;
}
twibrr = ((CLOCK_CORECLOCK/100000)-16)/2;
twibrr = ((CLOCK_CORECLOCK / 100000) - 16) / 2;
break;
case I2C_SPEED_FAST:
if (CLOCK_CORECLOCK < 7500000U) {
return -2;
}
twibrr = ((CLOCK_CORECLOCK/400000)-16)/2;
twibrr = ((CLOCK_CORECLOCK / 400000) - 16) / 2;
break;
case I2C_SPEED_FAST_PLUS:
if (CLOCK_CORECLOCK < 18000000U) {
return -2;
}
twibrr = ((CLOCK_CORECLOCK/1000000)-16)/2;
twibrr = ((CLOCK_CORECLOCK / 1000000) - 16) / 2;
break;
case I2C_SPEED_HIGH:
if (CLOCK_CORECLOCK < 62000000U) {
return -2;
}
twibrr = ((CLOCK_CORECLOCK/3400000)-16)/2;
twibrr = ((CLOCK_CORECLOCK / 3400000) - 16) / 2;
break;
default: