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spi_master: correctly reset spi afifos before DMA transaction starts

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Armando 2021-07-01 09:31:26 +08:00 committed by Armando (Dou Yiwen)
parent 69deaf528f
commit fd6173b9b7
1 changed files with 4 additions and 2 deletions
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6
components/hal/spi_hal_iram.c
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@ -150,7 +150,8 @@ void spi_hal_prepare_data(spi_hal_context_t *hal, const spi_hal_dev_config_t *de
lldesc_setup_link(hal->dmadesc_rx, trans->rcv_buffer, ((trans->rx_bitlen + 7) / 8), true);
spi_dma_ll_rx_reset(hal->dma_in, hal->rx_dma_chan);
spi_ll_dma_rx_fifo_reset(hal->dma_in);
spi_ll_dma_rx_fifo_reset(hal->hw);
spi_ll_infifo_full_clr(hal->hw);
spi_ll_dma_rx_enable(hal->hw, 1);
spi_dma_ll_rx_start(hal->dma_in, hal->rx_dma_chan, hal->dmadesc_rx);
}
@ -174,7 +175,8 @@ void spi_hal_prepare_data(spi_hal_context_t *hal, const spi_hal_dev_config_t *de
lldesc_setup_link(hal->dmadesc_tx, trans->send_buffer, (trans->tx_bitlen + 7) / 8, false);
spi_dma_ll_tx_reset(hal->dma_out, hal->tx_dma_chan);
spi_ll_dma_tx_fifo_reset(hal->dma_in);
spi_ll_dma_tx_fifo_reset(hal->hw);
spi_ll_outfifo_empty_clr(hal->hw);
spi_ll_dma_tx_enable(hal->hw, 1);
spi_dma_ll_tx_start(hal->dma_out, hal->tx_dma_chan, hal->dmadesc_tx);
}