modm API documentation
modm::platform::DmaBase Class Reference

#include <modm/platform/dma/dma_base.hpp>

Inheritance diagram for modm::platform::DmaBase:
modm::platform::DmaController< 1 > modm::platform::DmaController< 2 > modm::platform::DmaChannelHal< ChannelID, CHANNEL_BASE > modm::platform::DmaController< ID > modm::platform::DmaController< ID >::Channel modm::platform::DmaHal< ID > modm::platform::Dma1 modm::platform::Dma2

Classes

struct  Nvic
 
struct  Nvic< 1 >
 
struct  Nvic< 2 >
 

Public Typedefs

using IrqHandler = void (*)(void)
 

Public Types

enum  Channel {
  Stream0 = 0, Stream1, Stream2, Stream3,
  Stream4, Stream5, Stream6, Stream7,
  Channel0 = Stream0, Channel1 = Stream1, Channel2 = Stream2, Channel3 = Stream3,
  Channel4 = Stream4, Channel5 = Stream5, Channel6 = Stream6, Channel7 = Stream7
}
 
enum  Request : uint32_t {
  Channel0 = (0 << DMA_SxCR_CHSEL_Pos), Channel1 = (1 << DMA_SxCR_CHSEL_Pos), Channel2 = (2 << DMA_SxCR_CHSEL_Pos), Channel3 = (3 << DMA_SxCR_CHSEL_Pos),
  Channel4 = (4 << DMA_SxCR_CHSEL_Pos), Channel5 = (5 << DMA_SxCR_CHSEL_Pos), Channel6 = (6 << DMA_SxCR_CHSEL_Pos), Channel7 = (7 << DMA_SxCR_CHSEL_Pos)
}
 
enum  Priority : uint32_t { Low = 0, Medium = DMA_SxCR_PL_0, High = DMA_SxCR_PL_1, VeryHigh = DMA_SxCR_PL_1 | DMA_SxCR_PL_0 }
 
enum  MemoryDataSize : uint32_t {
  Byte = 0, Bit8 = Byte, HalfWord = DMA_SxCR_MSIZE_0, Bit16 = HalfWord,
  Word = DMA_SxCR_MSIZE_1, Bit32 = Word
}
 
enum  PeripheralDataSize : uint32_t {
  Byte = 0, Bit8 = Byte, HalfWord = DMA_SxCR_PSIZE_0, Bit16 = HalfWord,
  Word = DMA_SxCR_PSIZE_1, Bit32 = Word
}
 
enum  MemoryIncrementMode : uint32_t { Fixed = 0, MemoryIncrementMode::Increment = DMA_SxCR_MINC }
 
enum  PeripheralIncrementMode : uint32_t { Fixed = 0, PeripheralIncrementMode::Increment = DMA_SxCR_PINC }
 
enum  CircularMode : uint32_t { Disabled = 0, CircularMode::Enabled = DMA_SxCR_CIRC }
 
enum  DataTransferDirection : uint32_t { DataTransferDirection::PeripheralToMemory = 0, DataTransferDirection::MemoryToPeripheral = DMA_SxCR_DIR_0, DataTransferDirection::MemoryToMemory = DMA_SxCR_DIR_1 }
 
enum  Signal : uint8_t {
  NoSignal, A, B, Ch1,
  Ch2, Ch3, Ch4, Com,
  Dac1, Dac2, Ext_rx, Ext_tx,
  In, Out, Rx, Trig,
  Tx, Up
}
 
enum  InterruptEnable : uint32_t { DirectModeError = DMA_SxCR_DMEIE, TransferError = DMA_SxCR_TEIE, HalfTransfer = DMA_SxCR_HTIE, TransferComplete = DMA_SxCR_TCIE }
 
enum  InterruptFlags : uint8_t {
  FifoError = 0b00'0001, DirectModeError = 0b00'0100, Error = 0b00'1000, HalfTransferComplete = 0b01'0000,
  TransferComplete = 0b10'0000, All = 0b11'1101, Global = All
}
 

Public Member Functions

 MODM_FLAGS32 (InterruptEnable)
 
 MODM_FLAGS32 (InterruptFlags)
 

Static Protected Attributes

static constexpr uint32_t memoryMask
 
static constexpr uint32_t peripheralMask
 
static constexpr uint32_t configmask
 

Detailed Description

DMA

Author
Kevin Laeufer
Mike Wolfram

Member Enumeration Documentation

enum modm::platform::DmaBase::CircularMode : uint32_t
strong
Enum ValuesDocumentation
Enabled 

circular mode

Enum ValuesDocumentation
PeripheralToMemory 

Source: DMA_SxPAR; Sink: DMA_SxM0AR.

MemoryToPeripheral 

Source: DMA_SxM0AR; Sink: DMA_SxPAR.

MemoryToMemory 

Source: DMA_SxPAR; Sink: DMA_SxM0AR.

In direct mode (if the FIFO is not used) MSIZE is forced by hardware to the same value as PSIZE

Enum ValuesDocumentation
Increment 

incremented according to MemoryDataSize

Enum ValuesDocumentation
Increment 

incremented according to PeripheralDataSize

enum modm::platform::DmaBase::Signal : uint8_t
strong

Peripheral signals that can be used in DMA channels

Member Data Documentation

constexpr uint32_t modm::platform::DmaBase::configmask
staticprotectedconstexpr
Initial value:
DMA_SxCR_CHSEL_Msk |
DMA_SxCR_PL_Msk |
DMA_SxCR_CIRC_Msk |
DMA_SxCR_PFCTRL_Msk
constexpr uint32_t modm::platform::DmaBase::memoryMask
staticprotectedconstexpr
Initial value:
DMA_SxCR_MBURST_Msk |
DMA_SxCR_MSIZE_Msk |
DMA_SxCR_MINC |
DMA_SxCR_DIR_Msk
constexpr uint32_t modm::platform::DmaBase::peripheralMask
staticprotectedconstexpr
Initial value:
DMA_SxCR_PBURST_Msk |
DMA_SxCR_PSIZE_Msk |
DMA_SxCR_PINC_Msk |
DMA_SxCR_DIR_Msk

The documentation for this class was generated from the following file: