altos/stm: Increase MISO DMA priority to very high

We're still losing incoming bytes in full duplex mode.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/stm/ao_spi_stm.c b/src/stm/ao_spi_stm.c
index 1a04a2899a825afa758726d5625d3c11a7536c34..0215f03ebd6a56bf173c16e16e8c0a53cd008955 100644 (file)
--- a/src/stm/ao_spi_stm.c
+++ b/src/stm/ao_spi_stm.c
@@ -116,7 +116,7 @@ ao_spi_set_dma_miso(uint8_t id, void *data, uint16_t len, uint32_t minc)
                            data,
                            len,
                            (0 << STM_DMA_CCR_MEM2MEM) |
-                           (STM_DMA_CCR_PL_HIGH << STM_DMA_CCR_PL) |
+                           (STM_DMA_CCR_PL_VERY_HIGH << STM_DMA_CCR_PL) |
                            (STM_DMA_CCR_MSIZE_8 << STM_DMA_CCR_MSIZE) |
                            (STM_DMA_CCR_PSIZE_8 << STM_DMA_CCR_PSIZE) |
                            (minc << STM_DMA_CCR_MINC) |