diff options
Diffstat (limited to 'apps/px4io/i2c.c')
| -rw-r--r-- | apps/px4io/i2c.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/apps/px4io/i2c.c b/apps/px4io/i2c.c index bbb72360b..dca5ceb1d 100644 --- a/apps/px4io/i2c.c +++ b/apps/px4io/i2c.c @@ -158,9 +158,6 @@ i2c_interrupt(int irq, FAR void *context) if (sr1 & I2C_SR1_ADDR) { - stm32_dmastart(tx_dma, NULL, NULL, false); - stm32_dmastart(rx_dma, NULL, NULL, false); - /* clear ADDR to ack our selection and get direction */ (void)rSR1; /* as recommended, re-read SR1 */ uint16_t sr2 = rSR2; @@ -222,6 +219,8 @@ i2c_rx_setup(void) DMA_CCR_PSIZE_32BITS | DMA_CCR_MSIZE_8BITS | DMA_CCR_PRIMED); + + stm32_dmastart(rx_dma, NULL, NULL, false); } static void @@ -283,6 +282,8 @@ i2c_tx_setup(void) DMA_CCR_PSIZE_8BITS | DMA_CCR_MSIZE_8BITS | DMA_CCR_PRIMED); + + stm32_dmastart(tx_dma, NULL, NULL, false); } static void |