diff options
| -rw-r--r-- | libmaple/i2c.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libmaple/i2c.c b/libmaple/i2c.c index bbbf123..5000cf7 100644 --- a/libmaple/i2c.c +++ b/libmaple/i2c.c @@ -348,8 +348,8 @@ void _i2c_irq_handler(i2c_dev *dev) { * Add Slave support */ - /* Check to see if MSL master slave bit is set */ - if ((sr2 & I2C_SR2_MSL) != I2C_SR2_MSL) { /* 0 = slave mode 1 = master */ + /* Check to see if that a master transfer is not active */ + if (dev->state != I2C_STATE_BUSY) { /* Master Xfer and no place else sets I2C_STATE_BUSY */ /* Check for address match */ if (sr1 & I2C_SR1_ADDR) { |