summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--src/arch/msp430fr5969lp/driver/i2c.cc8
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;
}