diff options
| -rw-r--r-- | src/arch/msp430fr5969lp/driver/i2c.cc | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/arch/msp430fr5969lp/driver/i2c.cc b/src/arch/msp430fr5969lp/driver/i2c.cc index 0e0c376..5a47770 100644 --- a/src/arch/msp430fr5969lp/driver/i2c.cc +++ b/src/arch/msp430fr5969lp/driver/i2c.cc @@ -92,7 +92,13 @@ signed char I2C::xmit(unsigned char address, for (i = 0; i < rx_len; i++) { if (i == rx_len - 1) UCB0CTL1 |= UCTXSTP; - while (!(UCB0IFG & (UCRXIFG0 | UCNACKIFG | UCCLTOIFG))); + UCB0IFG = 0; + old_ifg = 0; + UCB0IE = UCRXIE | UCNACKIE | UCCLTOIE; + while (!(old_ifg & (UCRXIFG0 | UCNACKIFG | UCCLTOIFG))) { + arch.idle(); + } + UCB0IE = 0; rx_buf[i] = UCB0RXBUF; UCB0IFG &= ~UCRXIFG0; } |