刷新cache

2018-05-02 10:28:58 +08:00 · 2018-05-02 10:28:58 +08:00 · 672d6e39e9
parent 313920126b
commit 672d6e39e9
1 changed files with 13 additions and 12 deletions
--- a/bsp/imxrt1052-evk/drivers/drv_codec.c
+++ b/bsp/imxrt1052-evk/drivers/drv_codec.c
@ -347,6 +347,7 @@ static rt_size_t icodec_transmit(struct rt_audio_device *audio, const void *writ

        xfer.data = (uint8_t *)writeBuf;
        xfer.dataSize = size;
+        rt_hw_cpu_dcache_ops(RT_HW_CACHE_FLUSH, (void*)writeBuf, size);
        if (SAI_TransferSendEDMA(icodec->sai, &icodec->txHandle, &xfer) != kStatus_Success)
            return 0;