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| author | Wolfgang Draxinger <Wolfgang.Draxinger@draxit.de> | 2013-12-23 22:51:03 +0100 |
|---|---|---|
| committer | Wolfgang Draxinger <Wolfgang.Draxinger@draxit.de> | 2013-12-23 22:51:03 +0100 |
| commit | c16b3d2c3ed616150104f2a6782c880faec68579 (patch) | |
| tree | 783cf03d811fd465f23a8b0e0c58f02a526b0202 /twi_master_driver.c | |
| parent | 35c9449c31bdb18598c95b44f55e6b11b5bf0cd2 (diff) | |
| download | vgaedidinjector-c16b3d2c3ed616150104f2a6782c880faec68579.tar.gz vgaedidinjector-c16b3d2c3ed616150104f2a6782c880faec68579.tar.bz2 | |
v0.1v0.1
Diffstat (limited to 'twi_master_driver.c')
| -rw-r--r-- | twi_master_driver.c | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/twi_master_driver.c b/twi_master_driver.c index 8c5a695..35a5bed 100644 --- a/twi_master_driver.c +++ b/twi_master_driver.c @@ -281,19 +281,11 @@ bool TWI_MasterWriteRead(TWI_Master_t *twi, */
void TWI_MasterInterruptHandler(TWI_Master_t *twi)
{
-#if 0
- PORTB.OUTSET = (1<<3);
- PORTB.OUTCLR = (1<<3);
-#endif
uint8_t const currentStatus = twi->interface->MASTER.STATUS;
/* If arbitration lost or bus error. */
if ((currentStatus & TWI_MASTER_ARBLOST_bm) ||
(currentStatus & TWI_MASTER_BUSERR_bm)) {
-#if 0
- PORTB.OUTSET = (1<<3);
- PORTB.OUTCLR = (1<<3);
-#endif
TWI_MasterArbitrationLostBusErrorHandler(twi);
twi->interface->MASTER.STATUS =
@@ -303,10 +295,6 @@ void TWI_MasterInterruptHandler(TWI_Master_t *twi) } else
/* If master write interrupt. */
if (currentStatus & TWI_MASTER_WIF_bm) {
-#if 0
- PORTB.OUTSET = (1<<3);
- PORTB.OUTCLR = (1<<3);
-#endif
TWI_MasterWriteHandler(twi);
twi->interface->MASTER.STATUS =
@@ -315,10 +303,6 @@ void TWI_MasterInterruptHandler(TWI_Master_t *twi) } else
/* If master read interrupt. */
if (currentStatus & TWI_MASTER_RIF_bm) {
-#if 0
- PORTB.OUTSET = (1<<3);
- PORTB.OUTCLR = (1<<3);
-#endif
TWI_MasterReadHandler(twi);
twi->interface->MASTER.STATUS =
@@ -332,10 +316,6 @@ void TWI_MasterInterruptHandler(TWI_Master_t *twi) }
/* If unexpected state. */
else {
-#if 0
- PORTB.OUTSET = (1<<3);
- PORTB.OUTCLR = (1<<3);
-#endif
TWI_MasterTransactionFinished(twi, TWIM_RESULT_FAIL);
twi->interface->MASTER.STATUS = currentStatus;
@@ -380,20 +360,12 @@ static void TWI_MasterWriteHandler(TWI_Master_t *twi) /* If NOT acknowledged (NACK) by slave cancel the transaction. */
if( twi->interface->MASTER.STATUS & TWI_MASTER_RXACK_bm ) {
-#if 0
- PORTB.OUTSET = (1<<3);
- PORTB.OUTCLR = (1<<3);
-#endif
twi->interface->MASTER.CTRLC = TWI_MASTER_CMD_STOP_gc;
twi->result = TWIM_RESULT_NACK_RECEIVED;
twi->status = TWIM_STATUS_READY;
} else
/* If more bytes to write, send data. */
if( twi->bytesWritten < bytesToWrite ) {
-#if 0
- PORTB.OUTSET = (1<<3);
- PORTB.OUTCLR = (1<<3);
-#endif
uint8_t const data = twi->writeData[twi->bytesWritten];
twi->interface->MASTER.DATA = data;
twi->bytesWritten++;
@@ -402,19 +374,11 @@ static void TWI_MasterWriteHandler(TWI_Master_t *twi) * 'R/_W = 1'
*/
if( twi->bytesRead < bytesToRead ) {
-#if 0
- PORTB.OUTSET = (1<<3);
- PORTB.OUTCLR = (1<<3);
-#endif
uint8_t const readAddress = twi->address | 0x01;
twi->interface->MASTER.ADDR = readAddress;
}
/* If transaction finished, send STOP condition and set RESULT OK. */
else {
-#if 0
- PORTB.OUTSET = (1<<3);
- PORTB.OUTCLR = (1<<3);
-#endif
twi->interface->MASTER.CTRLC = TWI_MASTER_CMD_STOP_gc;
TWI_MasterTransactionFinished(twi, TWIM_RESULT_OK);
}
@@ -430,10 +394,6 @@ static void TWI_MasterWriteHandler(TWI_Master_t *twi) */
static void TWI_MasterReadHandler(TWI_Master_t *twi)
{
-#if 1
- PORTB.OUTTGL = (1<<3);
- PORTB.OUTTGL = (1<<3);
-#endif
/* Local variable used in if test to avoid compiler warning. */
uint8_t const bytesToRead = twi->bytesToRead;
|