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));
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));