diff options
Diffstat (limited to 'i2c.c')
| -rw-r--r-- | i2c.c | 6 |
1 files changed, 3 insertions, 3 deletions
@@ -72,6 +72,8 @@ void twInit () { bool twRequest (const twMode mode, const uint8_t address, const uint8_t subaddress, uint8_t * const data, const uint8_t count) { assert (twr.status == TWST_OK); + assert (count > 0); + assert (data != NULL); twr.mode = mode; twr.address = address; @@ -208,7 +210,7 @@ static void twIntRead () { if (status == TW_MR_DATA_ACK) { twr.data[twr.i] = TWDR; ++twr.i; - if (twr.i < twr.count-1) { + if (twr.i < twr.count) { /* read another byte, not the last one */ twFlushContRaw (); /* step stays the same */ @@ -225,8 +227,6 @@ static void twIntRead () { case 6: if (status == TW_MR_DATA_NACK) { - /* receive final byte, send stop */ - twr.data[twr.i] = TWDR; twStopRaw (); twr.status = TWST_OK; } else { |