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authorDaniel Friesel <derf@finalrewind.org>2018-10-19 11:19:40 +0200
committerDaniel Friesel <derf@finalrewind.org>2018-10-19 11:19:40 +0200
commit5949cef9e1f15fadca93864ddeb0fcb555b3b443 (patch)
tree0afebf5e6b7ad55419e57a0559f1670a5fc2b4d3 /src
parent9eb1066824bd8141914334c9b13e2d4f876e9138 (diff)
MSP430 I2C: Enable interrupts for RX mode
Diffstat (limited to 'src')
-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;
}