 |
RTEMS 6.1-rc6
|
Loading...
Searching...
No Matches
|
RTEMS 6.1-rc6
|
QSPI HAL module driver. This file provides firmware functions to manage the following functionalities of the QuadSPI interface (QSPI). More...
#include "stm32h7xx_hal.h"QSPI HAL module driver. This file provides firmware functions to manage the following functionalities of the QuadSPI interface (QSPI).
Copyright (c) 2017 STMicroelectronics. All rights reserved.
This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.
===============================================================================
##### How to use this driver #####
===============================================================================
[..]
*** Initialization ***
======================
[..]
(#) As prerequisite, fill in the HAL_QSPI_MspInit() :
(++) Enable QuadSPI clock interface with __HAL_RCC_QSPI_CLK_ENABLE().
(++) Reset QuadSPI Peripheral with __HAL_RCC_QSPI_FORCE_RESET() and __HAL_RCC_QSPI_RELEASE_RESET().
(++) Enable the clocks for the QuadSPI GPIOS with __HAL_RCC_GPIOx_CLK_ENABLE().
(++) Configure these QuadSPI pins in alternate mode using HAL_GPIO_Init().
(++) If interrupt mode is used, enable and configure QuadSPI global
interrupt with HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ().
(++) If DMA mode is used, enable the clocks for the QuadSPI MDMA
with __HAL_RCC_MDMA_CLK_ENABLE(), configure MDMA with HAL_MDMA_Init(),
link it with QuadSPI handle using __HAL_LINKDMA(), enable and configure
MDMA global interrupt with HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ().
(#) Configure the flash size, the clock prescaler, the fifo threshold, the
clock mode, the sample shifting and the CS high time using the HAL_QSPI_Init() function.
*** Indirect functional mode ***
================================
[..]
(#) Configure the command sequence using the HAL_QSPI_Command() or HAL_QSPI_Command_IT()
functions :
(++) Instruction phase : the mode used and if present the instruction opcode.
(++) Address phase : the mode used and if present the size and the address value.
(++) Alternate-bytes phase : the mode used and if present the size and the alternate
bytes values.
(++) Dummy-cycles phase : the number of dummy cycles (mode used is same as data phase).
(++) Data phase : the mode used and if present the number of bytes.
(++) Double Data Rate (DDR) mode : the activation (or not) of this mode and the delay
if activated.
(++) Sending Instruction Only Once (SIOO) mode : the activation (or not) of this mode.
(#) If no data is required for the command, it is sent directly to the memory :
(++) In polling mode, the output of the function is done when the transfer is complete.
(++) In interrupt mode, HAL_QSPI_CmdCpltCallback() will be called when the transfer is complete.
(#) For the indirect write mode, use HAL_QSPI_Transmit(), HAL_QSPI_Transmit_DMA() or
HAL_QSPI_Transmit_IT() after the command configuration :
(++) In polling mode, the output of the function is done when the transfer is complete.
(++) In interrupt mode, HAL_QSPI_FifoThresholdCallback() will be called when the fifo threshold
is reached and HAL_QSPI_TxCpltCallback() will be called when the transfer is complete.
(++) In DMA mode,HAL_QSPI_TxCpltCallback() will be called when the transfer is complete.
(#) For the indirect read mode, use HAL_QSPI_Receive(), HAL_QSPI_Receive_DMA() or
HAL_QSPI_Receive_IT() after the command configuration :
(++) In polling mode, the output of the function is done when the transfer is complete.
(++) In interrupt mode, HAL_QSPI_FifoThresholdCallback() will be called when the fifo threshold
is reached and HAL_QSPI_RxCpltCallback() will be called when the transfer is complete.
(++) In DMA mode,HAL_QSPI_RxCpltCallback() will be called when the transfer is complete.
*** Auto-polling functional mode ***
====================================
[..]
(#) Configure the command sequence and the auto-polling functional mode using the
HAL_QSPI_AutoPolling() or HAL_QSPI_AutoPolling_IT() functions :
(++) Instruction phase : the mode used and if present the instruction opcode.
(++) Address phase : the mode used and if present the size and the address value.
(++) Alternate-bytes phase : the mode used and if present the size and the alternate
bytes values.
(++) Dummy-cycles phase : the number of dummy cycles (mode used is same as data phase).
(++) Data phase : the mode used.
(++) Double Data Rate (DDR) mode : the activation (or not) of this mode and the delay
if activated.
(++) Sending Instruction Only Once (SIOO) mode : the activation (or not) of this mode.
(++) The size of the status bytes, the match value, the mask used, the match mode (OR/AND),
the polling interval and the automatic stop activation.
(#) After the configuration :
(++) In polling mode, the output of the function is done when the status match is reached. The
automatic stop is activated to avoid an infinite loop.
(++) In interrupt mode, HAL_QSPI_StatusMatchCallback() will be called each time the status match is reached.
*** MDMA functional mode ***
====================================
[..]
(#) Configure the SourceInc and DestinationInc of MDMA parameters in the HAL_QSPI_MspInit() function :
(++) MDMA settings for write operation :
(+) The DestinationInc should be MDMA_DEST_INC_DISABLE
(+) The SourceInc must be a value of MDMA_Source_increment_mode (Except the MDMA_SRC_INC_DOUBLEWORD).
(+) The SourceDataSize must be a value of MDMA Source data size (Except the MDMA_SRC_DATASIZE_DOUBLEWORD)
aligned with MDMA_Source_increment_mode .
(+) The DestDataSize must be a value of MDMA Destination data size (Except the MDMA_DEST_DATASIZE_DOUBLEWORD)
(++) MDMA settings for read operation :
(+) The SourceInc should be MDMA_SRC_INC_DISABLE
(+) The DestinationInc must be a value of MDMA_Destination_increment_mode (Except the MDMA_DEST_INC_DOUBLEWORD).
(+) The SourceDataSize must be a value of MDMA Source data size (Except the MDMA_SRC_DATASIZE_DOUBLEWORD) .
(+) The DestDataSize must be a value of MDMA Destination data size (Except the MDMA_DEST_DATASIZE_DOUBLEWORD)
aligned with MDMA_Destination_increment_mode.
(++)The buffer Transfer Length (BufferTransferLength) = number of bytes in the FIFO (FifoThreshold) of the Quadspi.
(#)In case of wrong MDMA setting
(++) For write operation :
(+) If the DestinationInc is different to MDMA_DEST_INC_DISABLE , it will be disabled by the HAL_QSPI_Transmit_DMA().
(++) For read operation :
(+) If the SourceInc is not set to MDMA_SRC_INC_DISABLE , it will be disabled by the HAL_QSPI_Receive_DMA().
*** Memory-mapped functional mode ***
=====================================
[..]
(#) Configure the command sequence and the memory-mapped functional mode using the
HAL_QSPI_MemoryMapped() functions :
(++) Instruction phase : the mode used and if present the instruction opcode.
(++) Address phase : the mode used and the size.
(++) Alternate-bytes phase : the mode used and if present the size and the alternate
bytes values.
(++) Dummy-cycles phase : the number of dummy cycles (mode used is same as data phase).
(++) Data phase : the mode used.
(++) Double Data Rate (DDR) mode : the activation (or not) of this mode and the delay
if activated.
(++) Sending Instruction Only Once (SIOO) mode : the activation (or not) of this mode.
(++) The timeout activation and the timeout period.
(#) After the configuration, the QuadSPI will be used as soon as an access on the AHB is done on
the address range. HAL_QSPI_TimeOutCallback() will be called when the timeout expires.
*** Errors management and abort functionality ***
=================================================
[..]
(#) HAL_QSPI_GetError() function gives the error raised during the last operation.
(#) HAL_QSPI_Abort() and HAL_QSPI_Abort_IT() functions aborts any on-going operation and
flushes the fifo :
(++) In polling mode, the output of the function is done when the transfer
complete bit is set and the busy bit cleared.
(++) In interrupt mode, HAL_QSPI_AbortCpltCallback() will be called when
the transfer complete bit is set.
*** Control functions ***
=========================
[..]
(#) HAL_QSPI_GetState() function gives the current state of the HAL QuadSPI driver.
(#) HAL_QSPI_SetTimeout() function configures the timeout value used in the driver.
(#) HAL_QSPI_SetFifoThreshold() function configures the threshold on the Fifo of the QSPI IP.
(#) HAL_QSPI_GetFifoThreshold() function gives the current of the Fifo's threshold
(#) HAL_QSPI_SetFlashID() function configures the index of the flash memory to be accessed.
*** Callback registration ***
=============================================
[..]
The compilation define USE_HAL_QSPI_REGISTER_CALLBACKS when set to 1
allows the user to configure dynamically the driver callbacks.
Use Functions HAL_QSPI_RegisterCallback() to register a user callback,
it allows to register following callbacks:
(+) ErrorCallback : callback when error occurs.
(+) AbortCpltCallback : callback when abort is completed.
(+) FifoThresholdCallback : callback when the fifo threshold is reached.
(+) CmdCpltCallback : callback when a command without data is completed.
(+) RxCpltCallback : callback when a reception transfer is completed.
(+) TxCpltCallback : callback when a transmission transfer is completed.
(+) StatusMatchCallback : callback when a status match occurs.
(+) TimeOutCallback : callback when the timeout perioed expires.
(+) MspInitCallback : QSPI MspInit.
(+) MspDeInitCallback : QSPI MspDeInit.
This function takes as parameters the HAL peripheral handle, the Callback ID
and a pointer to the user callback function.
Use function HAL_QSPI_UnRegisterCallback() to reset a callback to the default
weak (overridden) function. It allows to reset following callbacks:
(+) ErrorCallback : callback when error occurs.
(+) AbortCpltCallback : callback when abort is completed.
(+) FifoThresholdCallback : callback when the fifo threshold is reached.
(+) CmdCpltCallback : callback when a command without data is completed.
(+) RxCpltCallback : callback when a reception transfer is completed.
(+) TxCpltCallback : callback when a transmission transfer is completed.
(+) StatusMatchCallback : callback when a status match occurs.
(+) TimeOutCallback : callback when the timeout perioed expires.
(+) MspInitCallback : QSPI MspInit.
(+) MspDeInitCallback : QSPI MspDeInit.
This function) takes as parameters the HAL peripheral handle and the Callback ID.
By default, after the HAL_QSPI_Init and if the state is HAL_QSPI_STATE_RESET
all callbacks are reset to the corresponding legacy weak (overridden) functions.
Exception done for MspInit and MspDeInit callbacks that are respectively
reset to the legacy weak (overridden) functions in the HAL_QSPI_Init
and HAL_QSPI_DeInit only when these callbacks are null (not registered beforehand).
If not, MspInit or MspDeInit are not null, the HAL_QSPI_Init and HAL_QSPI_DeInit
keep and use the user MspInit/MspDeInit callbacks (registered beforehand)
Callbacks can be registered/unregistered in READY state only.
Exception done for MspInit/MspDeInit callbacks that can be registered/unregistered
in READY or RESET state, thus registered (user) MspInit/DeInit callbacks can be used
during the Init/DeInit.
In that case first register the MspInit/MspDeInit user callbacks
using HAL_QSPI_RegisterCallback before calling HAL_QSPI_DeInit
or HAL_QSPI_Init function.
When The compilation define USE_HAL_QSPI_REGISTER_CALLBACKS is set to 0 or
not defined, the callback registering feature is not available
and weak (overridden) callbacks are used.
*** Workarounds linked to Silicon Limitation ***
====================================================
[..]
(#) Workarounds Implemented inside HAL Driver
(++) Extra data written in the FIFO at the end of a read transfer 
1.9.6