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Support dynamic selection of DMA channels on STM32 #500

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71b043b
The basic functions have been completed.
wdx04 Oct 2, 2025
fcd7270
minor doc update
wdx04 Oct 2, 2025
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2 changes: 1 addition & 1 deletion targets/TARGET_STM/TARGET_STM32F4/objects.h
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Original file line number Diff line number Diff line change
Expand Up @@ -156,7 +156,7 @@ struct qspi_s {
PinName io3;
PinName sclk;
PinName ssel;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
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2 changes: 1 addition & 1 deletion targets/TARGET_STM/TARGET_STM32F7/objects.h
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Expand Up @@ -130,7 +130,7 @@ struct qspi_s {
PinName io3;
PinName sclk;
PinName ssel;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
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22 changes: 6 additions & 16 deletions targets/TARGET_STM/TARGET_STM32G0/stm_dma_info.h
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Expand Up @@ -26,26 +26,16 @@

/// Mapping from SPI index to DMA link info for Tx
static const DMALinkInfo SPITxDMALinks[] = {
{1, 1, DMA_REQUEST_SPI1_TX},
{1, 3, DMA_REQUEST_SPI2_TX},
#ifdef DMA2
// For better performance, on devices with DMA2 (STM32G0Bxx/Cxx), put SPI3 on DMA2
{2, 1, DMA_REQUEST_SPI3_TX}
#else
{1, 5, DMA_REQUEST_SPI3_TX}
#endif
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_TX}
};

/// Mapping from SPI index to DMA link info for Rx
static const DMALinkInfo SPIRxDMALinks[] = {
{1, 2, DMA_REQUEST_SPI1_RX},
{1, 4, DMA_REQUEST_SPI2_RX},
#ifdef DMA2
// For better performance, on devices with DMA2 (STM32G0Bxx/Cxx), put SPI3 on DMA2
{2, 2, DMA_REQUEST_SPI3_RX}
#else
{1, 6, DMA_REQUEST_SPI3_RX}
#endif
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_RX}
};


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2 changes: 1 addition & 1 deletion targets/TARGET_STM/TARGET_STM32G4/objects.h
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Original file line number Diff line number Diff line change
Expand Up @@ -113,7 +113,7 @@ struct qspi_s {
PinName io3;
PinName sclk;
PinName ssel;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
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18 changes: 9 additions & 9 deletions targets/TARGET_STM/TARGET_STM32G4/stm_dma_info.h
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Expand Up @@ -26,28 +26,28 @@

/// Mapping from SPI index to DMA link info for Tx
static const DMALinkInfo SPITxDMALinks[] = {
{1, 1, DMA_REQUEST_SPI1_TX},
{1, 3, DMA_REQUEST_SPI2_TX},
{1, 5, DMA_REQUEST_SPI3_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_TX},
#ifdef SPI4
{2, 1, DMA_REQUEST_SPI4_TX}
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI4_TX}
#endif
};

/// Mapping from SPI index to DMA link info for Rx
static const DMALinkInfo SPIRxDMALinks[] = {
{1, 2, DMA_REQUEST_SPI1_RX},
{1, 4, DMA_REQUEST_SPI2_RX},
{1, 6, DMA_REQUEST_SPI3_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_RX},
#ifdef SPI4
{2, 2, DMA_REQUEST_SPI4_RX}
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI4_RX}
#endif
};

/// Mapping from QSPI index to DMA link info
static const DMALinkInfo QSPIDMALinks[] = {
#if defined(QUADSPI)
{1, 7, DMA_REQUEST_QUADSPI },
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_QUADSPI },
#endif
};

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6 changes: 4 additions & 2 deletions targets/TARGET_STM/TARGET_STM32H5/objects.h
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Expand Up @@ -94,7 +94,8 @@ struct qspi_s {
PinName io3;
PinName sclk;
PinName ssel;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
DMAHandlePointer dmaHandleTX;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
Expand All @@ -118,7 +119,8 @@ struct ospi_s {
PinName sclk;
PinName ssel;
PinName dqs;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
DMAHandlePointer dmaHandleTX;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
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28 changes: 14 additions & 14 deletions targets/TARGET_STM/TARGET_STM32H5/stm_dma_info.h
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Expand Up @@ -26,41 +26,41 @@

/// Mapping from SPI index to DMA link info for Tx
static const DMALinkInfo SPITxDMALinks[] = {
{1, 0, GPDMA1_REQUEST_SPI1_TX},
{1, 2, GPDMA1_REQUEST_SPI2_TX},
{1, 4, GPDMA1_REQUEST_SPI3_TX}
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA1_REQUEST_SPI1_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA1_REQUEST_SPI2_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA1_REQUEST_SPI3_TX}
#if defined (SPI4)
,{1, 6, GPDMA1_REQUEST_SPI4_TX}
,{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA1_REQUEST_SPI4_TX}
#endif
#if defined (SPI5)
,{2, 0, GPDMA2_REQUEST_SPI5_TX}
,{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA2_REQUEST_SPI5_TX}
#endif
#if defined (SPI6)
,{2, 2, GPDMA2_REQUEST_SPI6_TX}
,{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA2_REQUEST_SPI6_TX}
#endif
};

/// Mapping from SPI index to DMA link info for Rx
static const DMALinkInfo SPIRxDMALinks[] = {
{1, 1, GPDMA1_REQUEST_SPI1_RX},
{1, 3, GPDMA1_REQUEST_SPI2_RX},
{1, 5, GPDMA1_REQUEST_SPI3_TX}
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA1_REQUEST_SPI1_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA1_REQUEST_SPI2_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA1_REQUEST_SPI3_TX}
#if defined (SPI4)
,{1, 7, GPDMA1_REQUEST_SPI4_RX}
,{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA1_REQUEST_SPI4_RX}
#endif
#if defined (SPI5)
,{2, 1, GPDMA2_REQUEST_SPI5_RX}
,{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA2_REQUEST_SPI5_RX}
#endif
#if defined (SPI6)
,{2, 3, GPDMA2_REQUEST_SPI6_RX}
,{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA2_REQUEST_SPI6_RX}
#endif
};

/// Mapping from OSPI index to DMA link info
#ifdef OCTOSPI1
static const DMALinkInfo OSPIDMALinks[] = {
{2, 4, GPDMA2_REQUEST_OCTOSPI1},
{2, 5, GPDMA2_REQUEST_OCTOSPI1},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA2_REQUEST_OCTOSPI1},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, GPDMA2_REQUEST_OCTOSPI1},
};
#endif

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4 changes: 2 additions & 2 deletions targets/TARGET_STM/TARGET_STM32H7/objects.h
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Original file line number Diff line number Diff line change
Expand Up @@ -101,7 +101,7 @@ struct qspi_s {
PinName io3;
PinName sclk;
PinName ssel;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
Expand All @@ -125,7 +125,7 @@ struct ospi_s {
PinName sclk;
PinName ssel;
PinName dqs;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
Expand Down
26 changes: 13 additions & 13 deletions targets/TARGET_STM/TARGET_STM32H7/stm_dma_info.h
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Expand Up @@ -26,31 +26,31 @@

/// Mapping from SPI index to DMA link info for Tx
static const DMALinkInfo SPITxDMALinks[] = {
{1, 1, DMA_REQUEST_SPI1_TX},
{1, 3, DMA_REQUEST_SPI2_TX},
{1, 5, DMA_REQUEST_SPI3_TX},
{1, 7, DMA_REQUEST_SPI4_TX},
{2, 1, DMA_REQUEST_SPI5_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI4_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI5_TX},
};

/// Mapping from SPI index to DMA link info for Rx
static const DMALinkInfo SPIRxDMALinks[] = {
{1, 0, DMA_REQUEST_SPI1_RX},
{1, 2, DMA_REQUEST_SPI2_RX},
{1, 4, DMA_REQUEST_SPI3_RX},
{1, 6, DMA_REQUEST_SPI4_RX},
{2, 0, DMA_REQUEST_SPI5_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI4_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI5_RX},
};

/// Mapping from QSPI/OSPI index to DMA link info
#if defined(OCTOSPI1)
static const DMALinkInfo OSPIDMALinks[] = {
{MDMA_IDX, 0, MDMA_REQUEST_OCTOSPI1_FIFO_TH},
{MDMA_IDX, 1, MDMA_REQUEST_OCTOSPI2_FIFO_TH}
{MDMA_IDX, MBED_ANY_DMA_CHANNEL, MDMA_REQUEST_OCTOSPI1_FIFO_TH},
{MDMA_IDX, MBED_ANY_DMA_CHANNEL, MDMA_REQUEST_OCTOSPI2_FIFO_TH}
};
#else
static const DMALinkInfo QSPIDMALinks[] = {
{MDMA_IDX, 0, MDMA_REQUEST_QUADSPI_FIFO_TH},
{MDMA_IDX, MBED_ANY_DMA_CHANNEL, MDMA_REQUEST_QUADSPI_FIFO_TH},
};
#endif

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4 changes: 2 additions & 2 deletions targets/TARGET_STM/TARGET_STM32L4/objects.h
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Expand Up @@ -123,7 +123,7 @@ struct qspi_s {
PinName io3;
PinName sclk;
PinName ssel;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
Expand All @@ -147,7 +147,7 @@ struct ospi_s {
PinName sclk;
PinName ssel;
PinName dqs;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
Expand Down
16 changes: 8 additions & 8 deletions targets/TARGET_STM/TARGET_STM32L4/stm_dma_info.h
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Expand Up @@ -28,22 +28,22 @@

/// Mapping from SPI index to DMA link info for Tx
static const DMALinkInfo SPITxDMALinks[] = {
{1, 1, DMA_REQUEST_SPI1_TX},
{1, 3, DMA_REQUEST_SPI2_TX},
{1, 5, DMA_REQUEST_SPI3_TX}
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_TX}
};

/// Mapping from SPI index to DMA link info for Rx
static const DMALinkInfo SPIRxDMALinks[] = {
{1, 2, DMA_REQUEST_SPI1_RX},
{1, 4, DMA_REQUEST_SPI2_RX},
{1, 6, DMA_REQUEST_SPI3_RX}
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_RX}
};

/// Mapping from OSPI index to DMA link info
static const DMALinkInfo OSPIDMALinks[] = {
{1, 7, DMA_REQUEST_OCTOSPI1},
{2, 1, DMA_REQUEST_OCTOSPI2},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_OCTOSPI1},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_OCTOSPI2},
};

#else
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4 changes: 2 additions & 2 deletions targets/TARGET_STM/TARGET_STM32L5/objects.h
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Expand Up @@ -120,7 +120,7 @@ struct qspi_s {
PinName io3;
PinName sclk;
PinName ssel;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
Expand All @@ -142,7 +142,7 @@ struct ospi_s {
PinName sclk;
PinName ssel;
PinName dqs;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
Expand Down
14 changes: 7 additions & 7 deletions targets/TARGET_STM/TARGET_STM32L5/stm_dma_info.h
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Expand Up @@ -26,21 +26,21 @@

/// Mapping from SPI index to DMA link info for Tx
static const DMALinkInfo SPITxDMALinks[] = {
{1, 1, DMA_REQUEST_SPI1_TX},
{1, 3, DMA_REQUEST_SPI2_TX},
{1, 5, DMA_REQUEST_SPI3_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_TX},
};

/// Mapping from SPI index to DMA link info for Rx
static const DMALinkInfo SPIRxDMALinks[] = {
{1, 2, DMA_REQUEST_SPI1_RX},
{1, 4, DMA_REQUEST_SPI2_RX},
{1, 6, DMA_REQUEST_SPI3_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_RX},
};

/// Mapping from OSPI index to DMA link info
static const DMALinkInfo OSPIDMALinks[] = {
{1, 7, DMA_REQUEST_OCTOSPI1},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_OCTOSPI1},
};

#endif //MBED_OS_STM_DMA_INFO_H
12 changes: 6 additions & 6 deletions targets/TARGET_STM/TARGET_STM32U0/stm_dma_info.h
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Expand Up @@ -26,19 +26,19 @@

/// Mapping from SPI index to DMA link info for Tx
static const DMALinkInfo SPITxDMALinks[] = {
{1, 2, DMA_REQUEST_SPI1_TX},
{1, 4, DMA_REQUEST_SPI2_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_TX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_TX},
#if defined (SPI3)
{1, 6, DMA_REQUEST_SPI3_TX}
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_TX}
#endif
};

/// Mapping from SPI index to DMA link info for Rx
static const DMALinkInfo SPIRxDMALinks[] = {
{1, 1, DMA_REQUEST_SPI1_RX},
{1, 3, DMA_REQUEST_SPI2_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI1_RX},
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI2_RX},
#if defined (SPI3)
{1, 5, DMA_REQUEST_SPI3_RX}
{MBED_ANY_GPDMA_MODULE, MBED_ANY_DMA_CHANNEL, DMA_REQUEST_SPI3_RX}
#endif
};

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4 changes: 2 additions & 2 deletions targets/TARGET_STM/TARGET_STM32U5/objects.h
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Original file line number Diff line number Diff line change
Expand Up @@ -120,7 +120,7 @@ struct qspi_s {
PinName io3;
PinName sclk;
PinName ssel;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
Expand All @@ -142,7 +142,7 @@ struct ospi_s {
PinName sclk;
PinName ssel;
PinName dqs;
bool dmaInitialized;
DMAHandlePointer dmaHandle;
#if MBED_CONF_RTOS_PRESENT
osSemaphoreId_t semaphoreId;
osRtxSemaphore_t semaphoreMem;
Expand Down
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