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-rw-r--r--src/stm/ao_i2c_stm.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/stm/ao_i2c_stm.c b/src/stm/ao_i2c_stm.c
index 763ae6cd..d82342db 100644
--- a/src/stm/ao_i2c_stm.c
+++ b/src/stm/ao_i2c_stm.c
@@ -250,10 +250,9 @@ ao_i2c_send(void *block, uint16_t len, uint8_t index, uint8_t stop)
ao_alarm(1 + len);
cli();
while (!ao_dma_done[tx_dma_index])
- if (ao_sleep(&ao_dma_done[tx_dma_index])) {
- printf ("send timeout\n");
+ if (ao_sleep(&ao_dma_done[tx_dma_index]))
break;
- }
+ ao_clear_alarm();
ao_dma_done_transfer(tx_dma_index);
out_cr2("send enable isr", stm_i2c,
AO_STM_I2C_CR2 | (1 << STM_I2C_CR2_ITEVTEN) | (1 << STM_I2C_CR2_ITERREN));