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path: root/platforms/avr/drivers/i2c_master.c
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Diffstat (limited to 'platforms/avr/drivers/i2c_master.c')
-rw-r--r--platforms/avr/drivers/i2c_master.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/platforms/avr/drivers/i2c_master.c b/platforms/avr/drivers/i2c_master.c
index c1a7b5f72d..524494c99d 100644
--- a/platforms/avr/drivers/i2c_master.c
+++ b/platforms/avr/drivers/i2c_master.c
@@ -64,7 +64,7 @@ static i2c_status_t i2c_start_impl(uint8_t address, uint16_t timeout) {
uint16_t timeout_timer = timer_read();
while (!(TWCR & (1 << TWINT))) {
- if ((timeout != I2C_TIMEOUT_INFINITE) && ((timer_read() - timeout_timer) >= timeout)) {
+ if ((timeout != I2C_TIMEOUT_INFINITE) && (timer_elapsed(timeout_timer) > timeout)) {
return I2C_STATUS_TIMEOUT;
}
}
@@ -81,7 +81,7 @@ static i2c_status_t i2c_start_impl(uint8_t address, uint16_t timeout) {
timeout_timer = timer_read();
while (!(TWCR & (1 << TWINT))) {
- if ((timeout != I2C_TIMEOUT_INFINITE) && ((timer_read() - timeout_timer) >= timeout)) {
+ if ((timeout != I2C_TIMEOUT_INFINITE) && (timer_elapsed(timeout_timer) > timeout)) {
return I2C_STATUS_TIMEOUT;
}
}
@@ -102,7 +102,7 @@ i2c_status_t i2c_start(uint8_t address, uint16_t timeout) {
i2c_status_t status;
do {
status = i2c_start_impl(address, time_slice);
- } while ((status < 0) && ((timeout == I2C_TIMEOUT_INFINITE) || (timer_elapsed(timeout_timer) < timeout)));
+ } while ((status < 0) && ((timeout == I2C_TIMEOUT_INFINITE) || (timer_elapsed(timeout_timer) <= timeout)));
return status;
}
@@ -114,7 +114,7 @@ i2c_status_t i2c_write(uint8_t data, uint16_t timeout) {
uint16_t timeout_timer = timer_read();
while (!(TWCR & (1 << TWINT))) {
- if ((timeout != I2C_TIMEOUT_INFINITE) && ((timer_read() - timeout_timer) >= timeout)) {
+ if ((timeout != I2C_TIMEOUT_INFINITE) && (timer_elapsed(timeout_timer) > timeout)) {
return I2C_STATUS_TIMEOUT;
}
}
@@ -132,7 +132,7 @@ int16_t i2c_read_ack(uint16_t timeout) {
uint16_t timeout_timer = timer_read();
while (!(TWCR & (1 << TWINT))) {
- if ((timeout != I2C_TIMEOUT_INFINITE) && ((timer_read() - timeout_timer) >= timeout)) {
+ if ((timeout != I2C_TIMEOUT_INFINITE) && (timer_elapsed(timeout_timer) > timeout)) {
return I2C_STATUS_TIMEOUT;
}
}
@@ -147,7 +147,7 @@ int16_t i2c_read_nack(uint16_t timeout) {
uint16_t timeout_timer = timer_read();
while (!(TWCR & (1 << TWINT))) {
- if ((timeout != I2C_TIMEOUT_INFINITE) && ((timer_read() - timeout_timer) >= timeout)) {
+ if ((timeout != I2C_TIMEOUT_INFINITE) && (timer_elapsed(timeout_timer) > timeout)) {
return I2C_STATUS_TIMEOUT;
}
}