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Diffstat (limited to 'src/stm/ao_spi_stm.c')
-rw-r--r--src/stm/ao_spi_stm.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/stm/ao_spi_stm.c b/src/stm/ao_spi_stm.c
index 885af544..7eaa3924 100644
--- a/src/stm/ao_spi_stm.c
+++ b/src/stm/ao_spi_stm.c
@@ -42,7 +42,7 @@ static const struct ao_spi_stm_info ao_spi_stm_info[STM_NUM_SPI] = {
static uint8_t spi_dev_null;
void
-ao_spi_send(void *block, uint16_t len, uint8_t spi_index)
+ao_spi_send(const void *block, uint16_t len, uint8_t spi_index)
{
struct stm_spi *stm_spi = ao_spi_stm_info[AO_SPI_INDEX(spi_index)].stm_spi;
uint8_t mosi_dma_index = ao_spi_stm_info[AO_SPI_INDEX(spi_index)].mosi_dma_index;
@@ -51,7 +51,7 @@ ao_spi_send(void *block, uint16_t len, uint8_t spi_index)
/* Set up the transmit DMA to deliver data */
ao_dma_set_transfer(mosi_dma_index,
&stm_spi->dr,
- block,
+ (void *) block,
len,
(0 << STM_DMA_CCR_MEM2MEM) |
(STM_DMA_CCR_PL_MEDIUM << STM_DMA_CCR_PL) |