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discoverpixy
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This file provides firmware functions to manage the following functionalities of the LTDC controller (LTDC) peripheral: More...
Macros | |
| #define | GCR_MASK ((uint32_t)0x0FFE888F) /* LTDC GCR Mask */ |
Functions | |
| void | LTDC_DeInit (void) |
| Deinitializes the LTDC peripheral registers to their default reset values. More... | |
| void | LTDC_Init (LTDC_InitTypeDef *LTDC_InitStruct) |
| Initializes the LTDC peripheral according to the specified parameters in the LTDC_InitStruct. More... | |
| void | LTDC_StructInit (LTDC_InitTypeDef *LTDC_InitStruct) |
| Fills each LTDC_InitStruct member with its default value. More... | |
| void | LTDC_Cmd (FunctionalState NewState) |
| Enables or disables the LTDC Controller. More... | |
| void | LTDC_DitherCmd (FunctionalState NewState) |
| Enables or disables Dither. More... | |
| LTDC_RGBTypeDef | LTDC_GetRGBWidth (void) |
| Get the dither RGB width. More... | |
| void | LTDC_RGBStructInit (LTDC_RGBTypeDef *LTDC_RGB_InitStruct) |
| Fills each LTDC_RGBStruct member with its default value. More... | |
| void | LTDC_LIPConfig (uint32_t LTDC_LIPositionConfig) |
| Define the position of the line interrupt . More... | |
| void | LTDC_ReloadConfig (uint32_t LTDC_Reload) |
| reload layers registers with new parameters More... | |
| void | LTDC_LayerInit (LTDC_Layer_TypeDef *LTDC_Layerx, LTDC_Layer_InitTypeDef *LTDC_Layer_InitStruct) |
| Initializes the LTDC Layer according to the specified parameters in the LTDC_LayerStruct. More... | |
| void | LTDC_LayerStructInit (LTDC_Layer_InitTypeDef *LTDC_Layer_InitStruct) |
| Fills each LTDC_Layer_InitStruct member with its default value. More... | |
| void | LTDC_LayerCmd (LTDC_Layer_TypeDef *LTDC_Layerx, FunctionalState NewState) |
| Enables or disables the LTDC_Layer Controller. More... | |
| LTDC_PosTypeDef | LTDC_GetPosStatus (void) |
| Get the current position. More... | |
| void | LTDC_PosStructInit (LTDC_PosTypeDef *LTDC_Pos_InitStruct) |
| Fills each LTDC_Pos_InitStruct member with its default value. More... | |
| FlagStatus | LTDC_GetCDStatus (uint32_t LTDC_CD) |
| Checks whether the specified LTDC's flag is set or not. More... | |
| void | LTDC_ColorKeyingConfig (LTDC_Layer_TypeDef *LTDC_Layerx, LTDC_ColorKeying_InitTypeDef *LTDC_colorkeying_InitStruct, FunctionalState NewState) |
| Set and configure the color keying. More... | |
| void | LTDC_ColorKeyingStructInit (LTDC_ColorKeying_InitTypeDef *LTDC_colorkeying_InitStruct) |
| Fills each LTDC_colorkeying_InitStruct member with its default value. More... | |
| void | LTDC_CLUTCmd (LTDC_Layer_TypeDef *LTDC_Layerx, FunctionalState NewState) |
| Enables or disables CLUT. More... | |
| void | LTDC_CLUTInit (LTDC_Layer_TypeDef *LTDC_Layerx, LTDC_CLUT_InitTypeDef *LTDC_CLUT_InitStruct) |
| configure the CLUT. More... | |
| void | LTDC_CLUTStructInit (LTDC_CLUT_InitTypeDef *LTDC_CLUT_InitStruct) |
| Fills each LTDC_CLUT_InitStruct member with its default value. More... | |
| void | LTDC_LayerPosition (LTDC_Layer_TypeDef *LTDC_Layerx, uint16_t OffsetX, uint16_t OffsetY) |
| reconfigure the layer position. More... | |
| void | LTDC_LayerAlpha (LTDC_Layer_TypeDef *LTDC_Layerx, uint8_t ConstantAlpha) |
| reconfigure constant alpha. More... | |
| void | LTDC_LayerAddress (LTDC_Layer_TypeDef *LTDC_Layerx, uint32_t Address) |
| reconfigure layer address. More... | |
| void | LTDC_LayerSize (LTDC_Layer_TypeDef *LTDC_Layerx, uint32_t Width, uint32_t Height) |
| reconfigure layer size. More... | |
| void | LTDC_LayerPixelFormat (LTDC_Layer_TypeDef *LTDC_Layerx, uint32_t PixelFormat) |
| reconfigure layer pixel format. More... | |
| void | LTDC_ITConfig (uint32_t LTDC_IT, FunctionalState NewState) |
| Enables or disables the specified LTDC's interrupts. More... | |
| FlagStatus | LTDC_GetFlagStatus (uint32_t LTDC_FLAG) |
| Checks whether the specified LTDC's flag is set or not. More... | |
| void | LTDC_ClearFlag (uint32_t LTDC_FLAG) |
| Clears the LTDC's pending flags. More... | |
| ITStatus | LTDC_GetITStatus (uint32_t LTDC_IT) |
| Checks whether the specified LTDC's interrupt has occurred or not. More... | |
| void | LTDC_ClearITPendingBit (uint32_t LTDC_IT) |
| Clears the LTDC's interrupt pending bits. More... | |
This file provides firmware functions to manage the following functionalities of the LTDC controller (LTDC) peripheral:
===============================================================================
##### How to use this driver #####
===============================================================================
[..]
(#) Enable LTDC clock using
RCC_APB2PeriphResetCmd(RCC_APB2Periph_LTDC, ENABLE) function.
(#) Configures LTDC
(++) Configure the required Pixel clock following the panel datasheet
(++) Configure the Synchronous timings: VSYNC, HSYNC, Vertical and
Horizontal back proch, active data area and the front proch
timings
(++) Configure the synchronous signals and clock polarity in the
LTDC_GCR register
(#) Configures Layer1/2 parameters
(++) The Layer window horizontal and vertical position in the LTDC_LxWHPCR and
LTDC_WVPCR registers. The layer window must be in the active data area.
(++) The pixel input format in the LTDC_LxPFCR register
(++) The color frame buffer start address in the LTDC_LxCFBAR register
(++) The line length and pitch of the color frame buffer in the
LTDC_LxCFBLR register
(++) The number of lines of the color frame buffer in
the LTDC_LxCFBLNR register
(++) if needed, load the CLUT with the RGB values and the address
in the LTDC_LxCLUTWR register
(++) If needed, configure the default color and the blending factors
respectively in the LTDC_LxDCCR and LTDC_LxBFCR registers
(++) If needed, Dithering and color keying can be be enabled respectively
in the LTDC_GCR and LTDC_LxCKCR registers. It can be also enabled
on the fly.
(#) Enable Layer1/2 and if needed the CLUT in the LTDC_LxCR register
(#) Reload the shadow registers to active register through
the LTDC_SRCR register.
-@- All layer parameters can be be modified on the fly except the CLUT.
The new configuration has to be either reloaded immediately
or during vertical blanking period by configuring the LTDC_SRCR register.
(#) Call the LTDC_Cmd() to enable the LTDC controller.Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); You may not use this file except in compliance with the License. You may obtain a copy of the License at:
http://www.st.com/software_license_agreement_liberty_v2
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
1.8.9.1