tmedicci commented on PR #11575:
URL: https://github.com/apache/nuttx/pull/11575#issuecomment-1904322470
@w2016561536 , could you please:
1) Fill the description, including the testing method;
2) Apply the following patch to fix whether to use or not the DMA:
```
diff --git a/arch/xtensa/src/esp32s3/esp32s3_spi.c
b/arch/xtensa/src/esp32s3/esp32s3_spi.c
index d700fb7c33..af8681b8cd 100644
--- a/arch/xtensa/src/esp32s3/esp32s3_spi.c
+++ b/arch/xtensa/src/esp32s3/esp32s3_spi.c
@@ -1223,7 +1223,7 @@ static void esp32s3_spi_exchange(struct spi_dev_s *dev,
#ifdef CONFIG_ESP32S3_SPI_DMA
size_t thld = CONFIG_ESP32S3_SPI_DMATHRESHOLD;
- if (nwords > thld)
+ if ((nwords * priv->nbits) / 8 > thld)
{
esp32s3_spi_dma_exchange(priv, txbuffer, rxbuffer, nwords);
}
```
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