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));