EBI - External Bus Interface#

EBI_Mode_TypeDef#

EBI_Mode_TypeDef

EBI Mode of operation.

EBI_Polarity_TypeDef#

EBI_Polarity_TypeDef

EBI Polarity configuration.

EBI_Line_TypeDef#

EBI_Line_TypeDef

EBI Pin Line types.

EBI_ALow_TypeDef#

EBI_ALow_TypeDef

Address Pin Enable, lower limit - lower range of pins to enable.

EBI_AHigh_TypeDef#

EBI_AHigh_TypeDef

Address Pin Enable, high limit - higher limit of pins to enable.

EBI_Location_TypeDef#

EBI_Location_TypeDef

EBI I/O Alternate Pin Location.

EBI_TFTBank_TypeDef#

EBI_TFTBank_TypeDef

EBI TFT Graphics Bank Select.

EBI_TFTColorSrc_TypeDef#

EBI_TFTColorSrc_TypeDef

Masking and Alpha blending source color.

EBI_TFTInterleave_TypeDef#

EBI_TFTInterleave_TypeDef

Bus Data Interleave Mode.

EBI_TFTFrameBufTrigger_TypeDef#

EBI_TFTFrameBufTrigger_TypeDef

Control frame base pointer copy.

EBI_TFTMaskBlend_TypeDef#

EBI_TFTMaskBlend_TypeDef

Control of mask and alpha blending mode.

EBI_TFTDDMode_TypeDef#

EBI_TFTDDMode_TypeDef

TFT Direct Drive mode.

EBI_TFTWidth_TypeDef#

EBI_TFTWidth_TypeDef

TFT Data Increment Width.

EBI_Init#

void EBI_Init (const EBI_Init_TypeDef *ebiInit)

Configure and enable the External Bus Interface.

Note

• GPIO lines must be configured as a PUSH_PULL for the correct operation. GPIO and EBI clocks must be enabled in the CMU.

EBI_Disable#

void EBI_Disable (void)

Disable External Bus Interface.

EBI_BankAddress#

uint32_t EBI_BankAddress (uint32_t bank)

Return the base address of the EBI bank.

Returns

• an absolute address of the bank.

EBI_BankEnable#

void EBI_BankEnable (uint32_t banks, bool enable)

Enable or disable EBI Bank.

EBI_NANDFlashEnable#

void EBI_NANDFlashEnable (uint32_t banks, bool enable)

Enable or disable EBI NAND Flash Support.

EBI_TFTInit#

void EBI_TFTInit (const EBI_TFTInit_TypeDef *ebiTFTInit)

Configure and initialize TFT Direct Drive.

EBI_TFTSizeSet#

void EBI_TFTSizeSet (uint32_t horizontal, uint32_t vertical)

Configure and initialize TFT size settings.

EBI_TFTHPorchSet#

void EBI_TFTHPorchSet (uint32_t front, uint32_t back, uint32_t pulseWidth)

Configure and initialize Horizontal Porch Settings.

EBI_TFTVPorchSet#

void EBI_TFTVPorchSet (uint32_t front, uint32_t back, uint32_t pulseWidth)

Configure Vertical Porch Settings.

EBI_TFTTimingSet#

void EBI_TFTTimingSet (uint32_t dclkPeriod, uint32_t start, uint32_t setup, uint32_t hold)

Configure TFT Direct Drive Timing Settings.

EBI_BankReadTimingSet#

void EBI_BankReadTimingSet (uint32_t banks, uint32_t setupCycles, uint32_t strobeCycles, uint32_t holdCycles)

Configure timing values of read bus accesses.

EBI_BankReadTimingConfig#

void EBI_BankReadTimingConfig (uint32_t banks, bool pageMode, bool prefetch, bool halfRE)

Configure read operation parameters for a selected bank.

EBI_BankWriteTimingSet#

void EBI_BankWriteTimingSet (uint32_t banks, uint32_t setupCycles, uint32_t strobeCycles, uint32_t holdCycles)

Configure timing values of write bus accesses.

EBI_BankWriteTimingConfig#

void EBI_BankWriteTimingConfig (uint32_t banks, bool writeBufDisable, bool halfWE)

Configure write operation parameters for a selected bank.

EBI_BankAddressTimingSet#

void EBI_BankAddressTimingSet (uint32_t banks, uint32_t setupCycles, uint32_t holdCycles)

Configure timing values of address latch bus accesses.

EBI_BankAddressTimingConfig#

void EBI_BankAddressTimingConfig (uint32_t banks, bool halfALE)

Configure address operation parameters for a selected bank.

EBI_BankPolaritySet#

void EBI_BankPolaritySet (uint32_t banks, EBI_Line_TypeDef line, EBI_Polarity_TypeDef polarity)

Configure EBI pin polarity for selected bank(s) for devices with individual timing support.

EBI_BankByteLaneEnable#

void EBI_BankByteLaneEnable (uint32_t banks, bool enable)

Configure Byte Lane Enable for select banks timing support.

EBI_AltMapEnable#

void EBI_AltMapEnable (bool enable)

Configure the Alternate Address Map support.

Enables or disables 256 MB address range for all banks.

EBI_TFTEnable#

void EBI_TFTEnable (EBI_TFTDDMode_TypeDef mode)

Enable or disable TFT Direct Drive.

EBI_TFTFrameBaseSet#

void EBI_TFTFrameBaseSet (uint32_t address)

Configure frame buffer pointer.

EBI_TFTPixelSet#

void EBI_TFTPixelSet (int pixel, uint32_t color)

Set TFT Pixel Color 0 or 1.

EBI_TFTDDSet#

void EBI_TFTDDSet (uint32_t color)

Set TFT Direct Drive Data from Internal Memory.

EBI_TFTMaskBlendMode#

void EBI_TFTMaskBlendMode (EBI_TFTMaskBlend_TypeDef maskBlend)

Masking and Blending Mode Set.

EBI_TFTColorSrcSet#

void EBI_TFTColorSrcSet (EBI_TFTColorSrc_TypeDef colorSrc)

Masking and Blending Color1 Source Set.

EBI_TFTAlphaBlendSet#

void EBI_TFTAlphaBlendSet (uint8_t alpha)

Set TFT Alpha Blending Factor.

EBI_TFTMaskSet#

void EBI_TFTMaskSet (uint32_t mask)

Set TFT mask value.

Data accesses that matches this value are suppressed.

EBI_TFTVCount#

uint32_t EBI_TFTVCount (void)

Get current vertical position counter.

Returns

• Returns the current line position for the visible part of a frame.

EBI_TFTHCount#

uint32_t EBI_TFTHCount (void)

Get current horizontal position counter.

Returns

• Returns the current horizontal pixel position within a visible line.

EBI_TFTFBTriggerSet#

void EBI_TFTFBTriggerSet (EBI_TFTFrameBufTrigger_TypeDef sync)

Set Frame Buffer Trigger.

Frame buffer pointer will be updated either on each horizontal line (hsync) or vertical update (vsync).

EBI_TFTHStrideSet#

void EBI_TFTHStrideSet (uint32_t nbytes)

Set horizontal TFT stride value in number of bytes.

EBI_IntClear#

void EBI_IntClear (uint32_t flags)

Clear one or more pending EBI interrupts.

EBI_IntSet#

void EBI_IntSet (uint32_t flags)

Set one or more pending EBI interrupts.

EBI_IntDisable#

void EBI_IntDisable (uint32_t flags)

Disable one or more EBI interrupts.

EBI_IntEnable#

void EBI_IntEnable (uint32_t flags)

Enable one or more EBI interrupts.

EBI_IntGet#

uint32_t EBI_IntGet (void)

Get pending EBI interrupt flags.

Note

• Event bits are not cleared by the use of this function.

Returns

• EBI interrupt sources pending, a logical combination of valid EBI interrupt flags, EBI_IF_nnn.

EBI_IntGetEnabled#

uint32_t EBI_IntGetEnabled (void)

Get enabled and pending EBI interrupt flags.

Useful for handling more interrupt sources in the same interrupt handler.

Note

• Interrupt flags are not cleared by the use of this function.

Returns

• Pending and enabled EBI interrupt sources. The return value is the bitwise AND of

  • the enabled interrupt sources in EBI_IEN and

  • the pending interrupt flags EBI_IF.

EBI_StartNandEccGen#

void EBI_StartNandEccGen (void)

Start ECC generator on NAND flash transfers.

EBI_StopNandEccGen#

uint32_t EBI_StopNandEccGen (void)

Stop NAND flash ECC generator and return generated ECC.

Returns

• The generated ECC.

EBI_ChipSelectEnable#

void EBI_ChipSelectEnable (uint32_t cs, bool enable)

Enable or disable EBI Chip Select.

EBI_ReadTimingSet#

void EBI_ReadTimingSet (uint32_t setupCycles, uint32_t strobeCycles, uint32_t holdCycles)

Configure timing values of read bus accesses.

EBI_WriteTimingSet#

void EBI_WriteTimingSet (uint32_t setupCycles, uint32_t strobeCycles, uint32_t holdCycles)

Configure timing values of write bus accesses.

EBI_AddressTimingSet#

void EBI_AddressTimingSet (uint32_t setupCycles, uint32_t holdCycles)

Configure timing values of address latch bus accesses.

EBI_PolaritySet#

void EBI_PolaritySet (EBI_Line_TypeDef line, EBI_Polarity_TypeDef polarity)

Configure EBI pin polarity.

EBI_BANK0#

#define EBI_BANK0

(uint32_t)(1 << 1)

EBI address bank 0.

*
* ---------               ---------
* |       |  /|       |\  | Ext.  |
* |  EBI  | / --------- \ | Async |
* |       | \ --------- / | Device|
* |       |  \|       |/  |       |
* ---------               ---------
*         Parallel interface
*
* 

EBI_BANK1#

#define EBI_BANK1

(uint32_t)(1 << 2)

EBI address bank 1.

EBI_BANK2#

#define EBI_BANK2

(uint32_t)(1 << 3)

EBI address bank 2.

EBI_BANK3#

#define EBI_BANK3

(uint32_t)(1 << 4)

EBI address bank 3.

EBI_CS0#

#define EBI_CS0

(uint32_t)(1 << 1)

EBI chip select line 0.

EBI_CS1#

#define EBI_CS1

(uint32_t)(1 << 2)

EBI chip select line 1.

EBI_CS2#

#define EBI_CS2

(uint32_t)(1 << 3)

EBI chip select line 2.

EBI_CS3#

#define EBI_CS3

(uint32_t)(1 << 4)

EBI chip select line 3.

EBI_GENERIC_ALB_A0#

#define EBI_GENERIC_ALB_A0

EBI_ROUTE_ALB_A0

Pin Enable Lower Bound EBI_A[0] and upwards.

EBI_GENERIC_ALB_A8#

#define EBI_GENERIC_ALB_A8

EBI_ROUTE_ALB_A8

Pin Enable Lower Bound EBI_A[8] and upwards.

EBI_GENERIC_ALB_A16#

#define EBI_GENERIC_ALB_A16

EBI_ROUTE_ALB_A16

Pin Enable Lower Bound EBI_A[16] and upwards.

EBI_GENERIC_ALB_A24#

#define EBI_GENERIC_ALB_A24

EBI_ROUTE_ALB_A24

Pin Enable Lower Bound EBI_A[24] and upwards.

EBI_GENERIC_APEN_A0#

#define EBI_GENERIC_APEN_A0

EBI_ROUTE_APEN_A0

All EBI_A pins enabled.

EBI_GENERIC_APEN_A5#

#define EBI_GENERIC_APEN_A5

EBI_ROUTE_APEN_A5

EBI_A[4:L] pins enabled.

EBI_GENERIC_APEN_A6#

#define EBI_GENERIC_APEN_A6

EBI_ROUTE_APEN_A6

EBI_A[5:L] pins enabled.

EBI_GENERIC_APEN_A7#

#define EBI_GENERIC_APEN_A7

EBI_ROUTE_APEN_A7

EBI_A[6:L] pins enabled.

EBI_GENERIC_APEN_A8#

#define EBI_GENERIC_APEN_A8

EBI_ROUTE_APEN_A8

EBI_A[7:L] pins enabled.

EBI_GENERIC_APEN_A9#

#define EBI_GENERIC_APEN_A9

EBI_ROUTE_APEN_A9

EBI_A[8:L] pins enabled.

EBI_GENERIC_APEN_A10#

#define EBI_GENERIC_APEN_A10

EBI_ROUTE_APEN_A10

EBI_A[9:L] pins enabled.

EBI_GENERIC_APEN_A11#

#define EBI_GENERIC_APEN_A11

EBI_ROUTE_APEN_A11

EBI_A[10:L] pins enabled.

EBI_GENERIC_APEN_A12#

#define EBI_GENERIC_APEN_A12

EBI_ROUTE_APEN_A12

EBI_A[11:L] pins enabled.

EBI_GENERIC_APEN_A13#

#define EBI_GENERIC_APEN_A13

EBI_ROUTE_APEN_A13

EBI_A[12:L] pins enabled.

EBI_GENERIC_APEN_A14#

#define EBI_GENERIC_APEN_A14

EBI_ROUTE_APEN_A14

EBI_A[13:L] pins enabled.

EBI_GENERIC_APEN_A15#

#define EBI_GENERIC_APEN_A15

EBI_ROUTE_APEN_A15

EBI_A[14:L] pins enabled.

EBI_GENERIC_APEN_A16#

#define EBI_GENERIC_APEN_A16

EBI_ROUTE_APEN_A16

EBI_A[15:L] pins enabled.

EBI_GENERIC_APEN_A17#

#define EBI_GENERIC_APEN_A17

EBI_ROUTE_APEN_A17

EBI_A[16:L] pins enabled.

EBI_GENERIC_APEN_A18#

#define EBI_GENERIC_APEN_A18

EBI_ROUTE_APEN_A18

EBI_A[17:L] pins enabled.

EBI_GENERIC_APEN_A19#

#define EBI_GENERIC_APEN_A19

EBI_ROUTE_APEN_A19

EBI_A[18:L] pins enabled.

EBI_GENERIC_APEN_A20#

#define EBI_GENERIC_APEN_A20

EBI_ROUTE_APEN_A20

EBI_A[19:L] pins enabled.

EBI_GENERIC_APEN_A21#

#define EBI_GENERIC_APEN_A21

EBI_ROUTE_APEN_A21

EBI_A[20:L] pins enabled.

EBI_GENERIC_APEN_A22#

#define EBI_GENERIC_APEN_A22

EBI_ROUTE_APEN_A22

EBI_A[21:L] pins enabled.

EBI_GENERIC_APEN_A23#

#define EBI_GENERIC_APEN_A23

EBI_ROUTE_APEN_A23

EBI_A[22:L] pins enabled.

EBI_GENERIC_APEN_A24#

#define EBI_GENERIC_APEN_A24

EBI_ROUTE_APEN_A24

EBI_A[23:L] pins enabled.

EBI_GENERIC_APEN_A25#

#define EBI_GENERIC_APEN_A25

EBI_ROUTE_APEN_A25

EBI_A[24:L] pins enabled.

EBI_GENERIC_APEN_A26#

#define EBI_GENERIC_APEN_A26

EBI_ROUTE_APEN_A26

EBI_A[25:L] pins enabled.

EBI_GENERIC_APEN_A27#

#define EBI_GENERIC_APEN_A27

EBI_ROUTE_APEN_A27

EBI_A[26:L] pins enabled.

EBI_GENERIC_APEN_A28#

#define EBI_GENERIC_APEN_A28

EBI_ROUTE_APEN_A28

EBI_A[27:L] pins enabled.

EBI_INIT_DEFAULT#

#define EBI_INIT_DEFAULT

Default configuration for EBI initialization structures.

EBI_TFTINIT_DEFAULT#

#define EBI_TFTINIT_DEFAULT

Default configuration for EBI TFT initialization structure.