Hobbyking_Cheetah_general - auto-measurements

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auto-measurements

Fork of Hobbyking_Cheetah_Compact by Ben Katz

FlashWriter/stm32f4xx_flash.c@34:47a55f96fbc4, 2017-10-02 (annotated)

Committer:: benkatz
Date:: Mon Oct 02 00:55:39 2017 +0000
Revision:: 34:47a55f96fbc4
Parent:: 23:2adf23ee0305

Auto-measurement

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User	Revision	Line number	New contents of line
benkatz	23:2adf23ee0305	1	/**
benkatz	23:2adf23ee0305	2	******************************************************************************
benkatz	23:2adf23ee0305	3	* @file stm32f4xx_flash.c
benkatz	23:2adf23ee0305	4	* @author MCD Application Team
benkatz	23:2adf23ee0305	5	* @version V1.7.1
benkatz	23:2adf23ee0305	6	* @date 20-May-2016
benkatz	23:2adf23ee0305	7	* @brief This file provides firmware functions to manage the following
benkatz	23:2adf23ee0305	8	* functionalities of the FLASH peripheral:
benkatz	23:2adf23ee0305	9	* + FLASH Interface configuration
benkatz	23:2adf23ee0305	10	* + FLASH Memory Programming
benkatz	23:2adf23ee0305	11	* + Option Bytes Programming
benkatz	23:2adf23ee0305	12	* + Interrupts and flags management
benkatz	23:2adf23ee0305	13	*
benkatz	23:2adf23ee0305	14	@verbatim
benkatz	23:2adf23ee0305	15	===============================================================================
benkatz	23:2adf23ee0305	16	##### How to use this driver #####
benkatz	23:2adf23ee0305	17	===============================================================================
benkatz	23:2adf23ee0305	18	[..]
benkatz	23:2adf23ee0305	19	This driver provides functions to configure and program the FLASH memory
benkatz	23:2adf23ee0305	20	of all STM32F4xx devices. These functions are split in 4 groups:
benkatz	23:2adf23ee0305	21
benkatz	23:2adf23ee0305	22	(#) FLASH Interface configuration functions: this group includes the
benkatz	23:2adf23ee0305	23	management of the following features:
benkatz	23:2adf23ee0305	24	(++) Set the latency
benkatz	23:2adf23ee0305	25	(++) Enable/Disable the prefetch buffer
benkatz	23:2adf23ee0305	26	(++) Enable/Disable the Instruction cache and the Data cache
benkatz	23:2adf23ee0305	27	(++) Reset the Instruction cache and the Data cache
benkatz	23:2adf23ee0305	28
benkatz	23:2adf23ee0305	29	(#) FLASH Memory Programming functions: this group includes all needed
benkatz	23:2adf23ee0305	30	functions to erase and program the main memory:
benkatz	23:2adf23ee0305	31	(++) Lock and Unlock the FLASH interface
benkatz	23:2adf23ee0305	32	(++) Erase function: Erase sector, erase all sectors
benkatz	23:2adf23ee0305	33	(++) Program functions: byte, half word, word and double word
benkatz	23:2adf23ee0305	34
benkatz	23:2adf23ee0305	35	(#) Option Bytes Programming functions: this group includes all needed
benkatz	23:2adf23ee0305	36	functions to manage the Option Bytes:
benkatz	23:2adf23ee0305	37	(++) Set/Reset the write protection
benkatz	23:2adf23ee0305	38	(++) Set the Read protection Level
benkatz	23:2adf23ee0305	39	(++) Set the BOR level
benkatz	23:2adf23ee0305	40	(++) Program the user Option Bytes
benkatz	23:2adf23ee0305	41	(++) Launch the Option Bytes loader
benkatz	23:2adf23ee0305	42
benkatz	23:2adf23ee0305	43	(#) Interrupts and flags management functions: this group
benkatz	23:2adf23ee0305	44	includes all needed functions to:
benkatz	23:2adf23ee0305	45	(++) Enable/Disable the FLASH interrupt sources
benkatz	23:2adf23ee0305	46	(++) Get flags status
benkatz	23:2adf23ee0305	47	(++) Clear flags
benkatz	23:2adf23ee0305	48	(++) Get FLASH operation status
benkatz	23:2adf23ee0305	49	(++) Wait for last FLASH operation
benkatz	23:2adf23ee0305	50	@endverbatim
benkatz	23:2adf23ee0305	51	******************************************************************************
benkatz	23:2adf23ee0305	52	* @attention
benkatz	23:2adf23ee0305	53	*
benkatz	23:2adf23ee0305	54	* <h2><center>© COPYRIGHT 2016 STMicroelectronics</center></h2>
benkatz	23:2adf23ee0305	55	*
benkatz	23:2adf23ee0305	56	* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
benkatz	23:2adf23ee0305	57	* You may not use this file except in compliance with the License.
benkatz	23:2adf23ee0305	58	* You may obtain a copy of the License at:
benkatz	23:2adf23ee0305	59	*
benkatz	23:2adf23ee0305	60	* http://www.st.com/software_license_agreement_liberty_v2
benkatz	23:2adf23ee0305	61	*
benkatz	23:2adf23ee0305	62	* Unless required by applicable law or agreed to in writing, software
benkatz	23:2adf23ee0305	63	* distributed under the License is distributed on an "AS IS" BASIS,
benkatz	23:2adf23ee0305	64	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
benkatz	23:2adf23ee0305	65	* See the License for the specific language governing permissions and
benkatz	23:2adf23ee0305	66	* limitations under the License.
benkatz	23:2adf23ee0305	67	*
benkatz	23:2adf23ee0305	68	******************************************************************************
benkatz	23:2adf23ee0305	69	*/
benkatz	23:2adf23ee0305	70
benkatz	23:2adf23ee0305	71	/* Includes ------------------------------------------------------------------*/
benkatz	23:2adf23ee0305	72	#include "stm32f4xx_flash.h"
benkatz	23:2adf23ee0305	73
benkatz	23:2adf23ee0305	74	/** @addtogroup STM32F4xx_StdPeriph_Driver
benkatz	23:2adf23ee0305	75	* @{
benkatz	23:2adf23ee0305	76	*/
benkatz	23:2adf23ee0305	77
benkatz	23:2adf23ee0305	78	/** @defgroup FLASH
benkatz	23:2adf23ee0305	79	* @brief FLASH driver modules
benkatz	23:2adf23ee0305	80	* @{
benkatz	23:2adf23ee0305	81	*/
benkatz	23:2adf23ee0305	82
benkatz	23:2adf23ee0305	83	/* Private typedef -----------------------------------------------------------*/
benkatz	23:2adf23ee0305	84	/* Private define ------------------------------------------------------------*/
benkatz	23:2adf23ee0305	85	#define SECTOR_MASK ((uint32_t)0xFFFFFF07)
benkatz	23:2adf23ee0305	86
benkatz	23:2adf23ee0305	87	/* Private macro -------------------------------------------------------------*/
benkatz	23:2adf23ee0305	88	/* Private variables ---------------------------------------------------------*/
benkatz	23:2adf23ee0305	89	/* Private function prototypes -----------------------------------------------*/
benkatz	23:2adf23ee0305	90	/* Private functions ---------------------------------------------------------*/
benkatz	23:2adf23ee0305	91
benkatz	23:2adf23ee0305	92	/** @defgroup FLASH_Private_Functions
benkatz	23:2adf23ee0305	93	* @{
benkatz	23:2adf23ee0305	94	*/
benkatz	23:2adf23ee0305	95
benkatz	23:2adf23ee0305	96	/** @defgroup FLASH_Group1 FLASH Interface configuration functions
benkatz	23:2adf23ee0305	97	* @brief FLASH Interface configuration functions
benkatz	23:2adf23ee0305	98	*
benkatz	23:2adf23ee0305	99
benkatz	23:2adf23ee0305	100	@verbatim
benkatz	23:2adf23ee0305	101	===============================================================================
benkatz	23:2adf23ee0305	102	##### FLASH Interface configuration functions #####
benkatz	23:2adf23ee0305	103	===============================================================================
benkatz	23:2adf23ee0305	104	[..]
benkatz	23:2adf23ee0305	105	This group includes the following functions:
benkatz	23:2adf23ee0305	106	(+) void FLASH_SetLatency(uint32_t FLASH_Latency)
benkatz	23:2adf23ee0305	107	To correctly read data from FLASH memory, the number of wait states (LATENCY)
benkatz	23:2adf23ee0305	108	must be correctly programmed according to the frequency of the CPU clock
benkatz	23:2adf23ee0305	109	(HCLK) and the supply voltage of the device.
benkatz	23:2adf23ee0305	110	[..]
benkatz	23:2adf23ee0305	111	For STM32F405xx/07xx and STM32F415xx/17xx devices
benkatz	23:2adf23ee0305	112	+-------------------------------------------------------------------------------------+
benkatz	23:2adf23ee0305	113	\| Latency \| HCLK clock frequency (MHz) \|
benkatz	23:2adf23ee0305	114	\| \|---------------------------------------------------------------------\|
benkatz	23:2adf23ee0305	115	\| \| voltage range \| voltage range \| voltage range \| voltage range \|
benkatz	23:2adf23ee0305	116	\| \| 2.7 V - 3.6 V \| 2.4 V - 2.7 V \| 2.1 V - 2.4 V \| 1.8 V - 2.1 V \|
benkatz	23:2adf23ee0305	117	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	118	\|0WS(1CPU cycle)\|0 < HCLK <= 30 \|0 < HCLK <= 24 \|0 < HCLK <= 22 \|0 < HCLK <= 20 \|
benkatz	23:2adf23ee0305	119	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	120	\|1WS(2CPU cycle)\|30 < HCLK <= 60 \|24 < HCLK <= 48 \|22 < HCLK <= 44 \|20 < HCLK <= 40 \|
benkatz	23:2adf23ee0305	121	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	122	\|2WS(3CPU cycle)\|60 < HCLK <= 90 \|48 < HCLK <= 72 \|44 < HCLK <= 66 \|40 < HCLK <= 60 \|
benkatz	23:2adf23ee0305	123	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	124	\|3WS(4CPU cycle)\|90 < HCLK <= 120\|72 < HCLK <= 96 \|66 < HCLK <= 88 \|60 < HCLK <= 80 \|
benkatz	23:2adf23ee0305	125	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	126	\|4WS(5CPU cycle)\|120< HCLK <= 150\|96 < HCLK <= 120\|88 < HCLK <= 110 \|80 < HCLK <= 100 \|
benkatz	23:2adf23ee0305	127	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	128	\|5WS(6CPU cycle)\|150< HCLK <= 168\|120< HCLK <= 144\|110 < HCLK <= 132\|100 < HCLK <= 120\|
benkatz	23:2adf23ee0305	129	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	130	\|6WS(7CPU cycle)\| NA \|144< HCLK <= 168\|132 < HCLK <= 154\|120 < HCLK <= 140\|
benkatz	23:2adf23ee0305	131	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	132	\|7WS(8CPU cycle)\| NA \| NA \|154 < HCLK <= 168\|140 < HCLK <= 160\|
benkatz	23:2adf23ee0305	133	+---------------\|----------------\|----------------\|-----------------\|-----------------+
benkatz	23:2adf23ee0305	134
benkatz	23:2adf23ee0305	135	[..]
benkatz	23:2adf23ee0305	136	For STM32F42xxx/43xxx devices
benkatz	23:2adf23ee0305	137	+-------------------------------------------------------------------------------------+
benkatz	23:2adf23ee0305	138	\| Latency \| HCLK clock frequency (MHz) \|
benkatz	23:2adf23ee0305	139	\| \|---------------------------------------------------------------------\|
benkatz	23:2adf23ee0305	140	\| \| voltage range \| voltage range \| voltage range \| voltage range \|
benkatz	23:2adf23ee0305	141	\| \| 2.7 V - 3.6 V \| 2.4 V - 2.7 V \| 2.1 V - 2.4 V \| 1.8 V - 2.1 V \|
benkatz	23:2adf23ee0305	142	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	143	\|0WS(1CPU cycle)\|0 < HCLK <= 30 \|0 < HCLK <= 24 \|0 < HCLK <= 22 \|0 < HCLK <= 20 \|
benkatz	23:2adf23ee0305	144	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	145	\|1WS(2CPU cycle)\|30 < HCLK <= 60 \|24 < HCLK <= 48 \|22 < HCLK <= 44 \|20 < HCLK <= 40 \|
benkatz	23:2adf23ee0305	146	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	147	\|2WS(3CPU cycle)\|60 < HCLK <= 90 \|48 < HCLK <= 72 \|44 < HCLK <= 66 \|40 < HCLK <= 60 \|
benkatz	23:2adf23ee0305	148	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	149	\|3WS(4CPU cycle)\|90 < HCLK <= 120\|72 < HCLK <= 96 \|66 < HCLK <= 88 \|60 < HCLK <= 80 \|
benkatz	23:2adf23ee0305	150	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	151	\|4WS(5CPU cycle)\|120< HCLK <= 150\|96 < HCLK <= 120\|88 < HCLK <= 110 \|80 < HCLK <= 100 \|
benkatz	23:2adf23ee0305	152	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	153	\|5WS(6CPU cycle)\|120< HCLK <= 180\|120< HCLK <= 144\|110 < HCLK <= 132\|100 < HCLK <= 120\|
benkatz	23:2adf23ee0305	154	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	155	\|6WS(7CPU cycle)\| NA \|144< HCLK <= 168\|132 < HCLK <= 154\|120 < HCLK <= 140\|
benkatz	23:2adf23ee0305	156	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	157	\|7WS(8CPU cycle)\| NA \|168< HCLK <= 180\|154 < HCLK <= 176\|140 < HCLK <= 160\|
benkatz	23:2adf23ee0305	158	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	159	\|8WS(9CPU cycle)\| NA \| NA \|176 < HCLK <= 180\|160 < HCLK <= 168\|
benkatz	23:2adf23ee0305	160	+-------------------------------------------------------------------------------------+
benkatz	23:2adf23ee0305	161
benkatz	23:2adf23ee0305	162	[..]
benkatz	23:2adf23ee0305	163	For STM32F401x devices
benkatz	23:2adf23ee0305	164	+-------------------------------------------------------------------------------------+
benkatz	23:2adf23ee0305	165	\| Latency \| HCLK clock frequency (MHz) \|
benkatz	23:2adf23ee0305	166	\| \|---------------------------------------------------------------------\|
benkatz	23:2adf23ee0305	167	\| \| voltage range \| voltage range \| voltage range \| voltage range \|
benkatz	23:2adf23ee0305	168	\| \| 2.7 V - 3.6 V \| 2.4 V - 2.7 V \| 2.1 V - 2.4 V \| 1.8 V - 2.1 V \|
benkatz	23:2adf23ee0305	169	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	170	\|0WS(1CPU cycle)\|0 < HCLK <= 30 \|0 < HCLK <= 24 \|0 < HCLK <= 22 \|0 < HCLK <= 20 \|
benkatz	23:2adf23ee0305	171	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	172	\|1WS(2CPU cycle)\|30 < HCLK <= 60 \|24 < HCLK <= 48 \|22 < HCLK <= 44 \|20 < HCLK <= 40 \|
benkatz	23:2adf23ee0305	173	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	174	\|2WS(3CPU cycle)\|60 < HCLK <= 84 \|48 < HCLK <= 72 \|44 < HCLK <= 66 \|40 < HCLK <= 60 \|
benkatz	23:2adf23ee0305	175	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	176	\|3WS(4CPU cycle)\| NA \|72 < HCLK <= 84 \|66 < HCLK <= 84 \|60 < HCLK <= 80 \|
benkatz	23:2adf23ee0305	177	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	178	\|4WS(5CPU cycle)\| NA \| NA \| NA \|80 < HCLK <= 84 \|
benkatz	23:2adf23ee0305	179	+-------------------------------------------------------------------------------------+
benkatz	23:2adf23ee0305	180
benkatz	23:2adf23ee0305	181	[..]
benkatz	23:2adf23ee0305	182	For STM32F410xx/STM32F411xE devices
benkatz	23:2adf23ee0305	183	+-------------------------------------------------------------------------------------+
benkatz	23:2adf23ee0305	184	\| Latency \| HCLK clock frequency (MHz) \|
benkatz	23:2adf23ee0305	185	\| \|---------------------------------------------------------------------\|
benkatz	23:2adf23ee0305	186	\| \| voltage range \| voltage range \| voltage range \| voltage range \|
benkatz	23:2adf23ee0305	187	\| \| 2.7 V - 3.6 V \| 2.4 V - 2.7 V \| 2.1 V - 2.4 V \| 1.8 V - 2.1 V \|
benkatz	23:2adf23ee0305	188	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	189	\|0WS(1CPU cycle)\|0 < HCLK <= 30 \|0 < HCLK <= 24 \|0 < HCLK <= 18 \|0 < HCLK <= 16 \|
benkatz	23:2adf23ee0305	190	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	191	\|1WS(2CPU cycle)\|30 < HCLK <= 64 \|24 < HCLK <= 48 \|18 < HCLK <= 36 \|16 < HCLK <= 32 \|
benkatz	23:2adf23ee0305	192	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	193	\|2WS(3CPU cycle)\|64 < HCLK <= 90 \|48 < HCLK <= 72 \|36 < HCLK <= 54 \|32 < HCLK <= 48 \|
benkatz	23:2adf23ee0305	194	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	195	\|3WS(4CPU cycle)\|90 < HCLK <= 100\|72 < HCLK <= 96 \|54 < HCLK <= 72 \|48 < HCLK <= 64 \|
benkatz	23:2adf23ee0305	196	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	197	\|4WS(5CPU cycle)\| NA \|96 < HCLK <= 100\|72 < HCLK <= 90 \|64 < HCLK <= 80 \|
benkatz	23:2adf23ee0305	198	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	199	\|5WS(6CPU cycle)\| NA \| NA \|90 < HCLK <= 100 \|80 < HCLK <= 96 \|
benkatz	23:2adf23ee0305	200	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|
benkatz	23:2adf23ee0305	201	\|6WS(7CPU cycle)\| NA \| NA \| NA \|96 < HCLK <= 100 \|
benkatz	23:2adf23ee0305	202	+-------------------------------------------------------------------------------------+
benkatz	23:2adf23ee0305	203
benkatz	23:2adf23ee0305	204	[..]
benkatz	23:2adf23ee0305	205	+-------------------------------------------------------------------------------------------------------------------+
benkatz	23:2adf23ee0305	206	\| \| voltage range \| voltage range \| voltage range \| voltage range \| voltage range 2.7 V - 3.6 V \|
benkatz	23:2adf23ee0305	207	\| \| 2.7 V - 3.6 V \| 2.4 V - 2.7 V \| 2.1 V - 2.4 V \| 1.8 V - 2.1 V \| with External Vpp = 9V \|
benkatz	23:2adf23ee0305	208	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|-----------------------------\|
benkatz	23:2adf23ee0305	209	\|Max Parallelism\| x32 \| x16 \| x8 \| x64 \|
benkatz	23:2adf23ee0305	210	\|---------------\|----------------\|----------------\|-----------------\|-----------------\|-----------------------------\|
benkatz	23:2adf23ee0305	211	\|PSIZE[1:0] \| 10 \| 01 \| 00 \| 11 \|
benkatz	23:2adf23ee0305	212	+-------------------------------------------------------------------------------------------------------------------+
benkatz	23:2adf23ee0305	213
benkatz	23:2adf23ee0305	214	-@- On STM32F405xx/407xx and STM32F415xx/417xx devices:
benkatz	23:2adf23ee0305	215	(++) when VOS = '0' Scale 2 mode, the maximum value of fHCLK = 144MHz.
benkatz	23:2adf23ee0305	216	(++) when VOS = '1' Scale 1 mode, the maximum value of fHCLK = 168MHz.
benkatz	23:2adf23ee0305	217	[..]
benkatz	23:2adf23ee0305	218	On STM32F42xxx/43xxx devices:
benkatz	23:2adf23ee0305	219	(++) when VOS[1:0] = '0x01' Scale 3 mode, the maximum value of fHCLK is 120MHz.
benkatz	23:2adf23ee0305	220	(++) when VOS[1:0] = '0x10' Scale 2 mode, the maximum value of fHCLK is 144MHz if OverDrive OFF and 168MHz if OverDrive ON.
benkatz	23:2adf23ee0305	221	(++) when VOS[1:0] = '0x11' Scale 1 mode, the maximum value of fHCLK is 168MHz if OverDrive OFF and 180MHz if OverDrive ON.
benkatz	23:2adf23ee0305	222	[..]
benkatz	23:2adf23ee0305	223	On STM32F401x devices:
benkatz	23:2adf23ee0305	224	(++) when VOS[1:0] = '0x01' Scale 3 mode, the maximum value of fHCLK is 60MHz.
benkatz	23:2adf23ee0305	225	(++) when VOS[1:0] = '0x10' Scale 2 mode, the maximum value of fHCLK is 84MHz.
benkatz	23:2adf23ee0305	226	[..]
benkatz	23:2adf23ee0305	227	On STM32F410xx/STM32F411xE devices:
benkatz	23:2adf23ee0305	228	(++) when VOS[1:0] = '0x01' Scale 3 mode, the maximum value of fHCLK is 64MHz.
benkatz	23:2adf23ee0305	229	(++) when VOS[1:0] = '0x10' Scale 2 mode, the maximum value of fHCLK is 84MHz.
benkatz	23:2adf23ee0305	230	(++) when VOS[1:0] = '0x11' Scale 1 mode, the maximum value of fHCLK is 100MHz.
benkatz	23:2adf23ee0305	231
benkatz	23:2adf23ee0305	232	For more details please refer product DataSheet
benkatz	23:2adf23ee0305	233	You can use PWR_MainRegulatorModeConfig() function to control VOS bits.
benkatz	23:2adf23ee0305	234
benkatz	23:2adf23ee0305	235	(+) void FLASH_PrefetchBufferCmd(FunctionalState NewState)
benkatz	23:2adf23ee0305	236	(+) void FLASH_InstructionCacheCmd(FunctionalState NewState)
benkatz	23:2adf23ee0305	237	(+) void FLASH_DataCacheCmd(FunctionalState NewState)
benkatz	23:2adf23ee0305	238	(+) void FLASH_InstructionCacheReset(void)
benkatz	23:2adf23ee0305	239	(+) void FLASH_DataCacheReset(void)
benkatz	23:2adf23ee0305	240
benkatz	23:2adf23ee0305	241	[..]
benkatz	23:2adf23ee0305	242	The unlock sequence is not needed for these functions.
benkatz	23:2adf23ee0305	243
benkatz	23:2adf23ee0305	244	@endverbatim
benkatz	23:2adf23ee0305	245	* @{
benkatz	23:2adf23ee0305	246	*/
benkatz	23:2adf23ee0305	247
benkatz	23:2adf23ee0305	248	/**
benkatz	23:2adf23ee0305	249	* @brief Sets the code latency value.
benkatz	23:2adf23ee0305	250	* @param FLASH_Latency: specifies the FLASH Latency value.
benkatz	23:2adf23ee0305	251	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	252	* @arg FLASH_Latency_0: FLASH Zero Latency cycle
benkatz	23:2adf23ee0305	253	* @arg FLASH_Latency_1: FLASH One Latency cycle
benkatz	23:2adf23ee0305	254	* @arg FLASH_Latency_2: FLASH Two Latency cycles
benkatz	23:2adf23ee0305	255	* @arg FLASH_Latency_3: FLASH Three Latency cycles
benkatz	23:2adf23ee0305	256	* @arg FLASH_Latency_4: FLASH Four Latency cycles
benkatz	23:2adf23ee0305	257	* @arg FLASH_Latency_5: FLASH Five Latency cycles
benkatz	23:2adf23ee0305	258	* @arg FLASH_Latency_6: FLASH Six Latency cycles
benkatz	23:2adf23ee0305	259	* @arg FLASH_Latency_7: FLASH Seven Latency cycles
benkatz	23:2adf23ee0305	260	* @arg FLASH_Latency_8: FLASH Eight Latency cycles
benkatz	23:2adf23ee0305	261	* @arg FLASH_Latency_9: FLASH Nine Latency cycles
benkatz	23:2adf23ee0305	262	* @arg FLASH_Latency_10: FLASH Teen Latency cycles
benkatz	23:2adf23ee0305	263	* @arg FLASH_Latency_11: FLASH Eleven Latency cycles
benkatz	23:2adf23ee0305	264	* @arg FLASH_Latency_12: FLASH Twelve Latency cycles
benkatz	23:2adf23ee0305	265	* @arg FLASH_Latency_13: FLASH Thirteen Latency cycles
benkatz	23:2adf23ee0305	266	* @arg FLASH_Latency_14: FLASH Fourteen Latency cycles
benkatz	23:2adf23ee0305	267	* @arg FLASH_Latency_15: FLASH Fifteen Latency cycles
benkatz	23:2adf23ee0305	268	*
benkatz	23:2adf23ee0305	269	* @note For STM32F405xx/407xx, STM32F415xx/417xx, STM32F401xx/411xE and STM32F412xG devices
benkatz	23:2adf23ee0305	270	* this parameter can be a value between FLASH_Latency_0 and FLASH_Latency_7.
benkatz	23:2adf23ee0305	271	*
benkatz	23:2adf23ee0305	272	* @note For STM32F42xxx/43xxx devices this parameter can be a value between
benkatz	23:2adf23ee0305	273	* FLASH_Latency_0 and FLASH_Latency_15.
benkatz	23:2adf23ee0305	274	*
benkatz	23:2adf23ee0305	275	* @retval None
benkatz	23:2adf23ee0305	276	*/
benkatz	23:2adf23ee0305	277	void FLASH_SetLatency(uint32_t FLASH_Latency)
benkatz	23:2adf23ee0305	278	{
benkatz	23:2adf23ee0305	279	/* Check the parameters */
benkatz	23:2adf23ee0305	280	assert_param(IS_FLASH_LATENCY(FLASH_Latency));
benkatz	23:2adf23ee0305	281
benkatz	23:2adf23ee0305	282	/* Perform Byte access to FLASH_ACR[8:0] to set the Latency value */
benkatz	23:2adf23ee0305	283	(__IO uint8_t )ACR_BYTE0_ADDRESS = (uint8_t)FLASH_Latency;
benkatz	23:2adf23ee0305	284	}
benkatz	23:2adf23ee0305	285
benkatz	23:2adf23ee0305	286	/**
benkatz	23:2adf23ee0305	287	* @brief Enables or disables the Prefetch Buffer.
benkatz	23:2adf23ee0305	288	* @param NewState: new state of the Prefetch Buffer.
benkatz	23:2adf23ee0305	289	* This parameter can be: ENABLE or DISABLE.
benkatz	23:2adf23ee0305	290	* @retval None
benkatz	23:2adf23ee0305	291	*/
benkatz	23:2adf23ee0305	292	void FLASH_PrefetchBufferCmd(FunctionalState NewState)
benkatz	23:2adf23ee0305	293	{
benkatz	23:2adf23ee0305	294	/* Check the parameters */
benkatz	23:2adf23ee0305	295	assert_param(IS_FUNCTIONAL_STATE(NewState));
benkatz	23:2adf23ee0305	296
benkatz	23:2adf23ee0305	297	/* Enable or disable the Prefetch Buffer */
benkatz	23:2adf23ee0305	298	if(NewState != DISABLE)
benkatz	23:2adf23ee0305	299	{
benkatz	23:2adf23ee0305	300	FLASH->ACR \|= FLASH_ACR_PRFTEN;
benkatz	23:2adf23ee0305	301	}
benkatz	23:2adf23ee0305	302	else
benkatz	23:2adf23ee0305	303	{
benkatz	23:2adf23ee0305	304	FLASH->ACR &= (~FLASH_ACR_PRFTEN);
benkatz	23:2adf23ee0305	305	}
benkatz	23:2adf23ee0305	306	}
benkatz	23:2adf23ee0305	307
benkatz	23:2adf23ee0305	308	/**
benkatz	23:2adf23ee0305	309	* @brief Enables or disables the Instruction Cache feature.
benkatz	23:2adf23ee0305	310	* @param NewState: new state of the Instruction Cache.
benkatz	23:2adf23ee0305	311	* This parameter can be: ENABLE or DISABLE.
benkatz	23:2adf23ee0305	312	* @retval None
benkatz	23:2adf23ee0305	313	*/
benkatz	23:2adf23ee0305	314	void FLASH_InstructionCacheCmd(FunctionalState NewState)
benkatz	23:2adf23ee0305	315	{
benkatz	23:2adf23ee0305	316	/* Check the parameters */
benkatz	23:2adf23ee0305	317	assert_param(IS_FUNCTIONAL_STATE(NewState));
benkatz	23:2adf23ee0305	318
benkatz	23:2adf23ee0305	319	if(NewState != DISABLE)
benkatz	23:2adf23ee0305	320	{
benkatz	23:2adf23ee0305	321	FLASH->ACR \|= FLASH_ACR_ICEN;
benkatz	23:2adf23ee0305	322	}
benkatz	23:2adf23ee0305	323	else
benkatz	23:2adf23ee0305	324	{
benkatz	23:2adf23ee0305	325	FLASH->ACR &= (~FLASH_ACR_ICEN);
benkatz	23:2adf23ee0305	326	}
benkatz	23:2adf23ee0305	327	}
benkatz	23:2adf23ee0305	328
benkatz	23:2adf23ee0305	329	/**
benkatz	23:2adf23ee0305	330	* @brief Enables or disables the Data Cache feature.
benkatz	23:2adf23ee0305	331	* @param NewState: new state of the Data Cache.
benkatz	23:2adf23ee0305	332	* This parameter can be: ENABLE or DISABLE.
benkatz	23:2adf23ee0305	333	* @retval None
benkatz	23:2adf23ee0305	334	*/
benkatz	23:2adf23ee0305	335	void FLASH_DataCacheCmd(FunctionalState NewState)
benkatz	23:2adf23ee0305	336	{
benkatz	23:2adf23ee0305	337	/* Check the parameters */
benkatz	23:2adf23ee0305	338	assert_param(IS_FUNCTIONAL_STATE(NewState));
benkatz	23:2adf23ee0305	339
benkatz	23:2adf23ee0305	340	if(NewState != DISABLE)
benkatz	23:2adf23ee0305	341	{
benkatz	23:2adf23ee0305	342	FLASH->ACR \|= FLASH_ACR_DCEN;
benkatz	23:2adf23ee0305	343	}
benkatz	23:2adf23ee0305	344	else
benkatz	23:2adf23ee0305	345	{
benkatz	23:2adf23ee0305	346	FLASH->ACR &= (~FLASH_ACR_DCEN);
benkatz	23:2adf23ee0305	347	}
benkatz	23:2adf23ee0305	348	}
benkatz	23:2adf23ee0305	349
benkatz	23:2adf23ee0305	350	/**
benkatz	23:2adf23ee0305	351	* @brief Resets the Instruction Cache.
benkatz	23:2adf23ee0305	352	* @note This function must be used only when the Instruction Cache is disabled.
benkatz	23:2adf23ee0305	353	* @param None
benkatz	23:2adf23ee0305	354	* @retval None
benkatz	23:2adf23ee0305	355	*/
benkatz	23:2adf23ee0305	356	void FLASH_InstructionCacheReset(void)
benkatz	23:2adf23ee0305	357	{
benkatz	23:2adf23ee0305	358	FLASH->ACR \|= FLASH_ACR_ICRST;
benkatz	23:2adf23ee0305	359	}
benkatz	23:2adf23ee0305	360
benkatz	23:2adf23ee0305	361	/**
benkatz	23:2adf23ee0305	362	* @brief Resets the Data Cache.
benkatz	23:2adf23ee0305	363	* @note This function must be used only when the Data Cache is disabled.
benkatz	23:2adf23ee0305	364	* @param None
benkatz	23:2adf23ee0305	365	* @retval None
benkatz	23:2adf23ee0305	366	*/
benkatz	23:2adf23ee0305	367	void FLASH_DataCacheReset(void)
benkatz	23:2adf23ee0305	368	{
benkatz	23:2adf23ee0305	369	FLASH->ACR \|= FLASH_ACR_DCRST;
benkatz	23:2adf23ee0305	370	}
benkatz	23:2adf23ee0305	371
benkatz	23:2adf23ee0305	372	/**
benkatz	23:2adf23ee0305	373	* @}
benkatz	23:2adf23ee0305	374	*/
benkatz	23:2adf23ee0305	375
benkatz	23:2adf23ee0305	376	/** @defgroup FLASH_Group2 FLASH Memory Programming functions
benkatz	23:2adf23ee0305	377	* @brief FLASH Memory Programming functions
benkatz	23:2adf23ee0305	378	*
benkatz	23:2adf23ee0305	379	@verbatim
benkatz	23:2adf23ee0305	380	===============================================================================
benkatz	23:2adf23ee0305	381	##### FLASH Memory Programming functions #####
benkatz	23:2adf23ee0305	382	===============================================================================
benkatz	23:2adf23ee0305	383	[..]
benkatz	23:2adf23ee0305	384	This group includes the following functions:
benkatz	23:2adf23ee0305	385	(+) void FLASH_Unlock(void)
benkatz	23:2adf23ee0305	386	(+) void FLASH_Lock(void)
benkatz	23:2adf23ee0305	387	(+) FLASH_Status FLASH_EraseSector(uint32_t FLASH_Sector, uint8_t VoltageRange)
benkatz	23:2adf23ee0305	388	(+) FLASH_Status FLASH_EraseAllSectors(uint8_t VoltageRange)
benkatz	23:2adf23ee0305	389	(+) FLASH_Status FLASH_ProgramDoubleWord(uint32_t Address, uint64_t Data)
benkatz	23:2adf23ee0305	390	(+) FLASH_Status FLASH_ProgramWord(uint32_t Address, uint32_t Data)
benkatz	23:2adf23ee0305	391	(+) FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data)
benkatz	23:2adf23ee0305	392	(+) FLASH_Status FLASH_ProgramByte(uint32_t Address, uint8_t Data)
benkatz	23:2adf23ee0305	393	The following functions can be used only for STM32F42xxx/43xxx devices.
benkatz	23:2adf23ee0305	394	(+) FLASH_Status FLASH_EraseAllBank1Sectors(uint8_t VoltageRange)
benkatz	23:2adf23ee0305	395	(+) FLASH_Status FLASH_EraseAllBank2Sectors(uint8_t VoltageRange)
benkatz	23:2adf23ee0305	396	[..]
benkatz	23:2adf23ee0305	397	Any operation of erase or program should follow these steps:
benkatz	23:2adf23ee0305	398	(#) Call the FLASH_Unlock() function to enable the FLASH control register access
benkatz	23:2adf23ee0305	399
benkatz	23:2adf23ee0305	400	(#) Call the desired function to erase sector(s) or program data
benkatz	23:2adf23ee0305	401
benkatz	23:2adf23ee0305	402	(#) Call the FLASH_Lock() function to disable the FLASH control register access
benkatz	23:2adf23ee0305	403	(recommended to protect the FLASH memory against possible unwanted operation)
benkatz	23:2adf23ee0305	404
benkatz	23:2adf23ee0305	405	@endverbatim
benkatz	23:2adf23ee0305	406	* @{
benkatz	23:2adf23ee0305	407	*/
benkatz	23:2adf23ee0305	408
benkatz	23:2adf23ee0305	409	/**
benkatz	23:2adf23ee0305	410	* @brief Unlocks the FLASH control register access
benkatz	23:2adf23ee0305	411	* @param None
benkatz	23:2adf23ee0305	412	* @retval None
benkatz	23:2adf23ee0305	413	*/
benkatz	23:2adf23ee0305	414	void FLASH_Unlock(void)
benkatz	23:2adf23ee0305	415	{
benkatz	23:2adf23ee0305	416	if((FLASH->CR & FLASH_CR_LOCK) != RESET)
benkatz	23:2adf23ee0305	417	{
benkatz	23:2adf23ee0305	418	/* Authorize the FLASH Registers access */
benkatz	23:2adf23ee0305	419	FLASH->KEYR = FLASH_KEY1;
benkatz	23:2adf23ee0305	420	FLASH->KEYR = FLASH_KEY2;
benkatz	23:2adf23ee0305	421	}
benkatz	23:2adf23ee0305	422	}
benkatz	23:2adf23ee0305	423
benkatz	23:2adf23ee0305	424	/**
benkatz	23:2adf23ee0305	425	* @brief Locks the FLASH control register access
benkatz	23:2adf23ee0305	426	* @param None
benkatz	23:2adf23ee0305	427	* @retval None
benkatz	23:2adf23ee0305	428	*/
benkatz	23:2adf23ee0305	429	void FLASH_Lock(void)
benkatz	23:2adf23ee0305	430	{
benkatz	23:2adf23ee0305	431	/* Set the LOCK Bit to lock the FLASH Registers access */
benkatz	23:2adf23ee0305	432	FLASH->CR \|= FLASH_CR_LOCK;
benkatz	23:2adf23ee0305	433	}
benkatz	23:2adf23ee0305	434
benkatz	23:2adf23ee0305	435	/**
benkatz	23:2adf23ee0305	436	* @brief Erases a specified FLASH Sector.
benkatz	23:2adf23ee0305	437	*
benkatz	23:2adf23ee0305	438	* @note If an erase and a program operations are requested simultaneously,
benkatz	23:2adf23ee0305	439	* the erase operation is performed before the program one.
benkatz	23:2adf23ee0305	440	*
benkatz	23:2adf23ee0305	441	* @param FLASH_Sector: The Sector number to be erased.
benkatz	23:2adf23ee0305	442	*
benkatz	23:2adf23ee0305	443	* @note For STM32F405xx/407xx and STM32F415xx/417xx devices this parameter can
benkatz	23:2adf23ee0305	444	* be a value between FLASH_Sector_0 and FLASH_Sector_11.
benkatz	23:2adf23ee0305	445	*
benkatz	23:2adf23ee0305	446	* For STM32F42xxx/43xxx devices this parameter can be a value between
benkatz	23:2adf23ee0305	447	* FLASH_Sector_0 and FLASH_Sector_23.
benkatz	23:2adf23ee0305	448	*
benkatz	23:2adf23ee0305	449	* For STM32F401xx devices this parameter can be a value between
benkatz	23:2adf23ee0305	450	* FLASH_Sector_0 and FLASH_Sector_5.
benkatz	23:2adf23ee0305	451	*
benkatz	23:2adf23ee0305	452	* For STM32F411xE and STM32F412xG devices this parameter can be a value between
benkatz	23:2adf23ee0305	453	* FLASH_Sector_0 and FLASH_Sector_7.
benkatz	23:2adf23ee0305	454	*
benkatz	23:2adf23ee0305	455	* For STM32F410xx devices this parameter can be a value between
benkatz	23:2adf23ee0305	456	* FLASH_Sector_0 and FLASH_Sector_4.
benkatz	23:2adf23ee0305	457	*
benkatz	23:2adf23ee0305	458	* @param VoltageRange: The device voltage range which defines the erase parallelism.
benkatz	23:2adf23ee0305	459	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	460	* @arg VoltageRange_1: when the device voltage range is 1.8V to 2.1V,
benkatz	23:2adf23ee0305	461	* the operation will be done by byte (8-bit)
benkatz	23:2adf23ee0305	462	* @arg VoltageRange_2: when the device voltage range is 2.1V to 2.7V,
benkatz	23:2adf23ee0305	463	* the operation will be done by half word (16-bit)
benkatz	23:2adf23ee0305	464	* @arg VoltageRange_3: when the device voltage range is 2.7V to 3.6V,
benkatz	23:2adf23ee0305	465	* the operation will be done by word (32-bit)
benkatz	23:2adf23ee0305	466	* @arg VoltageRange_4: when the device voltage range is 2.7V to 3.6V + External Vpp,
benkatz	23:2adf23ee0305	467	* the operation will be done by double word (64-bit)
benkatz	23:2adf23ee0305	468	*
benkatz	23:2adf23ee0305	469	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	470	* FLASH_ERROR_WRP2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	471	*/
benkatz	23:2adf23ee0305	472	FLASH_Status FLASH_EraseSector(uint32_t FLASH_Sector, uint8_t VoltageRange)
benkatz	23:2adf23ee0305	473	{
benkatz	23:2adf23ee0305	474	uint32_t tmp_psize = 0x0;
benkatz	23:2adf23ee0305	475	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	476
benkatz	23:2adf23ee0305	477	/* Check the parameters */
benkatz	23:2adf23ee0305	478	assert_param(IS_FLASH_SECTOR(FLASH_Sector));
benkatz	23:2adf23ee0305	479	assert_param(IS_VOLTAGERANGE(VoltageRange));
benkatz	23:2adf23ee0305	480
benkatz	23:2adf23ee0305	481	if(VoltageRange == VoltageRange_1)
benkatz	23:2adf23ee0305	482	{
benkatz	23:2adf23ee0305	483	tmp_psize = FLASH_PSIZE_BYTE;
benkatz	23:2adf23ee0305	484	}
benkatz	23:2adf23ee0305	485	else if(VoltageRange == VoltageRange_2)
benkatz	23:2adf23ee0305	486	{
benkatz	23:2adf23ee0305	487	tmp_psize = FLASH_PSIZE_HALF_WORD;
benkatz	23:2adf23ee0305	488	}
benkatz	23:2adf23ee0305	489	else if(VoltageRange == VoltageRange_3)
benkatz	23:2adf23ee0305	490	{
benkatz	23:2adf23ee0305	491	tmp_psize = FLASH_PSIZE_WORD;
benkatz	23:2adf23ee0305	492	}
benkatz	23:2adf23ee0305	493	else
benkatz	23:2adf23ee0305	494	{
benkatz	23:2adf23ee0305	495	tmp_psize = FLASH_PSIZE_DOUBLE_WORD;
benkatz	23:2adf23ee0305	496	}
benkatz	23:2adf23ee0305	497	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	498	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	499
benkatz	23:2adf23ee0305	500	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	501	{
benkatz	23:2adf23ee0305	502	/* if the previous operation is completed, proceed to erase the sector */
benkatz	23:2adf23ee0305	503	FLASH->CR &= CR_PSIZE_MASK;
benkatz	23:2adf23ee0305	504	FLASH->CR \|= tmp_psize;
benkatz	23:2adf23ee0305	505	FLASH->CR &= SECTOR_MASK;
benkatz	23:2adf23ee0305	506	FLASH->CR \|= FLASH_CR_SER \| FLASH_Sector;
benkatz	23:2adf23ee0305	507	FLASH->CR \|= FLASH_CR_STRT;
benkatz	23:2adf23ee0305	508
benkatz	23:2adf23ee0305	509	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	510	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	511
benkatz	23:2adf23ee0305	512	/* if the erase operation is completed, disable the SER Bit */
benkatz	23:2adf23ee0305	513	FLASH->CR &= (~FLASH_CR_SER);
benkatz	23:2adf23ee0305	514	FLASH->CR &= SECTOR_MASK;
benkatz	23:2adf23ee0305	515	}
benkatz	23:2adf23ee0305	516	/* Return the Erase Status */
benkatz	23:2adf23ee0305	517	return status;
benkatz	23:2adf23ee0305	518	}
benkatz	23:2adf23ee0305	519
benkatz	23:2adf23ee0305	520	/**
benkatz	23:2adf23ee0305	521	* @brief Erases all FLASH Sectors.
benkatz	23:2adf23ee0305	522	*
benkatz	23:2adf23ee0305	523	* @note If an erase and a program operations are requested simultaneously,
benkatz	23:2adf23ee0305	524	* the erase operation is performed before the program one.
benkatz	23:2adf23ee0305	525	*
benkatz	23:2adf23ee0305	526	* @param VoltageRange: The device voltage range which defines the erase parallelism.
benkatz	23:2adf23ee0305	527	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	528	* @arg VoltageRange_1: when the device voltage range is 1.8V to 2.1V,
benkatz	23:2adf23ee0305	529	* the operation will be done by byte (8-bit)
benkatz	23:2adf23ee0305	530	* @arg VoltageRange_2: when the device voltage range is 2.1V to 2.7V,
benkatz	23:2adf23ee0305	531	* the operation will be done by half word (16-bit)
benkatz	23:2adf23ee0305	532	* @arg VoltageRange_3: when the device voltage range is 2.7V to 3.6V,
benkatz	23:2adf23ee0305	533	* the operation will be done by word (32-bit)
benkatz	23:2adf23ee0305	534	* @arg VoltageRange_4: when the device voltage range is 2.7V to 3.6V + External Vpp,
benkatz	23:2adf23ee0305	535	* the operation will be done by double word (64-bit)
benkatz	23:2adf23ee0305	536	*
benkatz	23:2adf23ee0305	537	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	538	* FLASH_ERROR_WRP2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	539	*/
benkatz	23:2adf23ee0305	540	FLASH_Status FLASH_EraseAllSectors(uint8_t VoltageRange)
benkatz	23:2adf23ee0305	541	{
benkatz	23:2adf23ee0305	542	uint32_t tmp_psize = 0x0;
benkatz	23:2adf23ee0305	543	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	544
benkatz	23:2adf23ee0305	545	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	546	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	547	assert_param(IS_VOLTAGERANGE(VoltageRange));
benkatz	23:2adf23ee0305	548
benkatz	23:2adf23ee0305	549	if(VoltageRange == VoltageRange_1)
benkatz	23:2adf23ee0305	550	{
benkatz	23:2adf23ee0305	551	tmp_psize = FLASH_PSIZE_BYTE;
benkatz	23:2adf23ee0305	552	}
benkatz	23:2adf23ee0305	553	else if(VoltageRange == VoltageRange_2)
benkatz	23:2adf23ee0305	554	{
benkatz	23:2adf23ee0305	555	tmp_psize = FLASH_PSIZE_HALF_WORD;
benkatz	23:2adf23ee0305	556	}
benkatz	23:2adf23ee0305	557	else if(VoltageRange == VoltageRange_3)
benkatz	23:2adf23ee0305	558	{
benkatz	23:2adf23ee0305	559	tmp_psize = FLASH_PSIZE_WORD;
benkatz	23:2adf23ee0305	560	}
benkatz	23:2adf23ee0305	561	else
benkatz	23:2adf23ee0305	562	{
benkatz	23:2adf23ee0305	563	tmp_psize = FLASH_PSIZE_DOUBLE_WORD;
benkatz	23:2adf23ee0305	564	}
benkatz	23:2adf23ee0305	565	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	566	{
benkatz	23:2adf23ee0305	567	/* if the previous operation is completed, proceed to erase all sectors */
benkatz	23:2adf23ee0305	568	#if defined(STM32F427_437xx) \|\| defined(STM32F429_439xx) \|\| defined(STM32F469_479xx)
benkatz	23:2adf23ee0305	569	FLASH->CR &= CR_PSIZE_MASK;
benkatz	23:2adf23ee0305	570	FLASH->CR \|= tmp_psize;
benkatz	23:2adf23ee0305	571	FLASH->CR \|= (FLASH_CR_MER1 \| FLASH_CR_MER2);
benkatz	23:2adf23ee0305	572	FLASH->CR \|= FLASH_CR_STRT;
benkatz	23:2adf23ee0305	573
benkatz	23:2adf23ee0305	574	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	575	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	576
benkatz	23:2adf23ee0305	577	/* if the erase operation is completed, disable the MER Bit */
benkatz	23:2adf23ee0305	578	FLASH->CR &= ~(FLASH_CR_MER1 \| FLASH_CR_MER2);
benkatz	23:2adf23ee0305	579	#endif /* STM32F427_437xx \|\| STM32F429_439xx \|\| STM32F469_479xx */
benkatz	23:2adf23ee0305	580
benkatz	23:2adf23ee0305	581	#if defined(STM32F40_41xxx) \|\| defined(STM32F401xx) \|\| defined(STM32F410xx) \|\| defined(STM32F411xE) \|\| defined(STM32F412xG) \|\| defined(STM32F446xx)
benkatz	23:2adf23ee0305	582	FLASH->CR &= CR_PSIZE_MASK;
benkatz	23:2adf23ee0305	583	FLASH->CR \|= tmp_psize;
benkatz	23:2adf23ee0305	584	FLASH->CR \|= FLASH_CR_MER;
benkatz	23:2adf23ee0305	585	FLASH->CR \|= FLASH_CR_STRT;
benkatz	23:2adf23ee0305	586
benkatz	23:2adf23ee0305	587	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	588	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	589
benkatz	23:2adf23ee0305	590	/* if the erase operation is completed, disable the MER Bit */
benkatz	23:2adf23ee0305	591	FLASH->CR &= (~FLASH_CR_MER);
benkatz	23:2adf23ee0305	592	#endif /* STM32F40_41xxx \|\| STM32F401xx \|\| STM32F410xx \|\| STM32F411xE \|\| STM32F412xG \|\| STM32F446xx */
benkatz	23:2adf23ee0305	593
benkatz	23:2adf23ee0305	594	}
benkatz	23:2adf23ee0305	595	/* Return the Erase Status */
benkatz	23:2adf23ee0305	596	return status;
benkatz	23:2adf23ee0305	597	}
benkatz	23:2adf23ee0305	598
benkatz	23:2adf23ee0305	599	/**
benkatz	23:2adf23ee0305	600	* @brief Erases all FLASH Sectors in Bank 1.
benkatz	23:2adf23ee0305	601	*
benkatz	23:2adf23ee0305	602	* @note This function can be used only for STM32F42xxx/43xxx devices.
benkatz	23:2adf23ee0305	603	*
benkatz	23:2adf23ee0305	604	* @note If an erase and a program operations are requested simultaneously,
benkatz	23:2adf23ee0305	605	* the erase operation is performed before the program one.
benkatz	23:2adf23ee0305	606	*
benkatz	23:2adf23ee0305	607	* @param VoltageRange: The device voltage range which defines the erase parallelism.
benkatz	23:2adf23ee0305	608	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	609	* @arg VoltageRange_1: when the device voltage range is 1.8V to 2.1V,
benkatz	23:2adf23ee0305	610	* the operation will be done by byte (8-bit)
benkatz	23:2adf23ee0305	611	* @arg VoltageRange_2: when the device voltage range is 2.1V to 2.7V,
benkatz	23:2adf23ee0305	612	* the operation will be done by half word (16-bit)
benkatz	23:2adf23ee0305	613	* @arg VoltageRange_3: when the device voltage range is 2.7V to 3.6V,
benkatz	23:2adf23ee0305	614	* the operation will be done by word (32-bit)
benkatz	23:2adf23ee0305	615	* @arg VoltageRange_4: when the device voltage range is 2.7V to 3.6V + External Vpp,
benkatz	23:2adf23ee0305	616	* the operation will be done by double word (64-bit)
benkatz	23:2adf23ee0305	617	*
benkatz	23:2adf23ee0305	618	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	619	* FLASH_ERROR_WRP2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	620	*/
benkatz	23:2adf23ee0305	621	FLASH_Status FLASH_EraseAllBank1Sectors(uint8_t VoltageRange)
benkatz	23:2adf23ee0305	622	{
benkatz	23:2adf23ee0305	623	uint32_t tmp_psize = 0x0;
benkatz	23:2adf23ee0305	624	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	625
benkatz	23:2adf23ee0305	626	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	627	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	628	assert_param(IS_VOLTAGERANGE(VoltageRange));
benkatz	23:2adf23ee0305	629
benkatz	23:2adf23ee0305	630	if(VoltageRange == VoltageRange_1)
benkatz	23:2adf23ee0305	631	{
benkatz	23:2adf23ee0305	632	tmp_psize = FLASH_PSIZE_BYTE;
benkatz	23:2adf23ee0305	633	}
benkatz	23:2adf23ee0305	634	else if(VoltageRange == VoltageRange_2)
benkatz	23:2adf23ee0305	635	{
benkatz	23:2adf23ee0305	636	tmp_psize = FLASH_PSIZE_HALF_WORD;
benkatz	23:2adf23ee0305	637	}
benkatz	23:2adf23ee0305	638	else if(VoltageRange == VoltageRange_3)
benkatz	23:2adf23ee0305	639	{
benkatz	23:2adf23ee0305	640	tmp_psize = FLASH_PSIZE_WORD;
benkatz	23:2adf23ee0305	641	}
benkatz	23:2adf23ee0305	642	else
benkatz	23:2adf23ee0305	643	{
benkatz	23:2adf23ee0305	644	tmp_psize = FLASH_PSIZE_DOUBLE_WORD;
benkatz	23:2adf23ee0305	645	}
benkatz	23:2adf23ee0305	646	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	647	{
benkatz	23:2adf23ee0305	648	/* if the previous operation is completed, proceed to erase all sectors */
benkatz	23:2adf23ee0305	649	FLASH->CR &= CR_PSIZE_MASK;
benkatz	23:2adf23ee0305	650	FLASH->CR \|= tmp_psize;
benkatz	23:2adf23ee0305	651	FLASH->CR \|= FLASH_CR_MER1;
benkatz	23:2adf23ee0305	652	FLASH->CR \|= FLASH_CR_STRT;
benkatz	23:2adf23ee0305	653
benkatz	23:2adf23ee0305	654	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	655	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	656
benkatz	23:2adf23ee0305	657	/* if the erase operation is completed, disable the MER Bit */
benkatz	23:2adf23ee0305	658	FLASH->CR &= (~FLASH_CR_MER1);
benkatz	23:2adf23ee0305	659
benkatz	23:2adf23ee0305	660	}
benkatz	23:2adf23ee0305	661	/* Return the Erase Status */
benkatz	23:2adf23ee0305	662	return status;
benkatz	23:2adf23ee0305	663	}
benkatz	23:2adf23ee0305	664
benkatz	23:2adf23ee0305	665
benkatz	23:2adf23ee0305	666	/**
benkatz	23:2adf23ee0305	667	* @brief Erases all FLASH Sectors in Bank 2.
benkatz	23:2adf23ee0305	668	*
benkatz	23:2adf23ee0305	669	* @note This function can be used only for STM32F42xxx/43xxx devices.
benkatz	23:2adf23ee0305	670	*
benkatz	23:2adf23ee0305	671	* @note If an erase and a program operations are requested simultaneously,
benkatz	23:2adf23ee0305	672	* the erase operation is performed before the program one.
benkatz	23:2adf23ee0305	673	*
benkatz	23:2adf23ee0305	674	* @param VoltageRange: The device voltage range which defines the erase parallelism.
benkatz	23:2adf23ee0305	675	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	676	* @arg VoltageRange_1: when the device voltage range is 1.8V to 2.1V,
benkatz	23:2adf23ee0305	677	* the operation will be done by byte (8-bit)
benkatz	23:2adf23ee0305	678	* @arg VoltageRange_2: when the device voltage range is 2.1V to 2.7V,
benkatz	23:2adf23ee0305	679	* the operation will be done by half word (16-bit)
benkatz	23:2adf23ee0305	680	* @arg VoltageRange_3: when the device voltage range is 2.7V to 3.6V,
benkatz	23:2adf23ee0305	681	* the operation will be done by word (32-bit)
benkatz	23:2adf23ee0305	682	* @arg VoltageRange_4: when the device voltage range is 2.7V to 3.6V + External Vpp,
benkatz	23:2adf23ee0305	683	* the operation will be done by double word (64-bit)
benkatz	23:2adf23ee0305	684	*
benkatz	23:2adf23ee0305	685	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	686	* FLASH_ERROR_WRP2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	687	*/
benkatz	23:2adf23ee0305	688	FLASH_Status FLASH_EraseAllBank2Sectors(uint8_t VoltageRange)
benkatz	23:2adf23ee0305	689	{
benkatz	23:2adf23ee0305	690	uint32_t tmp_psize = 0x0;
benkatz	23:2adf23ee0305	691	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	692
benkatz	23:2adf23ee0305	693	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	694	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	695	assert_param(IS_VOLTAGERANGE(VoltageRange));
benkatz	23:2adf23ee0305	696
benkatz	23:2adf23ee0305	697	if(VoltageRange == VoltageRange_1)
benkatz	23:2adf23ee0305	698	{
benkatz	23:2adf23ee0305	699	tmp_psize = FLASH_PSIZE_BYTE;
benkatz	23:2adf23ee0305	700	}
benkatz	23:2adf23ee0305	701	else if(VoltageRange == VoltageRange_2)
benkatz	23:2adf23ee0305	702	{
benkatz	23:2adf23ee0305	703	tmp_psize = FLASH_PSIZE_HALF_WORD;
benkatz	23:2adf23ee0305	704	}
benkatz	23:2adf23ee0305	705	else if(VoltageRange == VoltageRange_3)
benkatz	23:2adf23ee0305	706	{
benkatz	23:2adf23ee0305	707	tmp_psize = FLASH_PSIZE_WORD;
benkatz	23:2adf23ee0305	708	}
benkatz	23:2adf23ee0305	709	else
benkatz	23:2adf23ee0305	710	{
benkatz	23:2adf23ee0305	711	tmp_psize = FLASH_PSIZE_DOUBLE_WORD;
benkatz	23:2adf23ee0305	712	}
benkatz	23:2adf23ee0305	713	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	714	{
benkatz	23:2adf23ee0305	715	/* if the previous operation is completed, proceed to erase all sectors */
benkatz	23:2adf23ee0305	716	FLASH->CR &= CR_PSIZE_MASK;
benkatz	23:2adf23ee0305	717	FLASH->CR \|= tmp_psize;
benkatz	23:2adf23ee0305	718	FLASH->CR \|= FLASH_CR_MER2;
benkatz	23:2adf23ee0305	719	FLASH->CR \|= FLASH_CR_STRT;
benkatz	23:2adf23ee0305	720
benkatz	23:2adf23ee0305	721	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	722	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	723
benkatz	23:2adf23ee0305	724	/* if the erase operation is completed, disable the MER Bit */
benkatz	23:2adf23ee0305	725	FLASH->CR &= (~FLASH_CR_MER2);
benkatz	23:2adf23ee0305	726
benkatz	23:2adf23ee0305	727	}
benkatz	23:2adf23ee0305	728	/* Return the Erase Status */
benkatz	23:2adf23ee0305	729	return status;
benkatz	23:2adf23ee0305	730	}
benkatz	23:2adf23ee0305	731
benkatz	23:2adf23ee0305	732	/**
benkatz	23:2adf23ee0305	733	* @brief Programs a double word (64-bit) at a specified address.
benkatz	23:2adf23ee0305	734	* @note This function must be used when the device voltage range is from
benkatz	23:2adf23ee0305	735	* 2.7V to 3.6V and an External Vpp is present.
benkatz	23:2adf23ee0305	736	*
benkatz	23:2adf23ee0305	737	* @note If an erase and a program operations are requested simultaneously,
benkatz	23:2adf23ee0305	738	* the erase operation is performed before the program one.
benkatz	23:2adf23ee0305	739	*
benkatz	23:2adf23ee0305	740	* @param Address: specifies the address to be programmed.
benkatz	23:2adf23ee0305	741	* @param Data: specifies the data to be programmed.
benkatz	23:2adf23ee0305	742	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	743	* FLASH_ERROR_WRP2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	744	*/
benkatz	23:2adf23ee0305	745	FLASH_Status FLASH_ProgramDoubleWord(uint32_t Address, uint64_t Data)
benkatz	23:2adf23ee0305	746	{
benkatz	23:2adf23ee0305	747	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	748
benkatz	23:2adf23ee0305	749	/* Check the parameters */
benkatz	23:2adf23ee0305	750	assert_param(IS_FLASH_ADDRESS(Address));
benkatz	23:2adf23ee0305	751
benkatz	23:2adf23ee0305	752	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	753	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	754
benkatz	23:2adf23ee0305	755	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	756	{
benkatz	23:2adf23ee0305	757	/* if the previous operation is completed, proceed to program the new data */
benkatz	23:2adf23ee0305	758	FLASH->CR &= CR_PSIZE_MASK;
benkatz	23:2adf23ee0305	759	FLASH->CR \|= FLASH_PSIZE_DOUBLE_WORD;
benkatz	23:2adf23ee0305	760	FLASH->CR \|= FLASH_CR_PG;
benkatz	23:2adf23ee0305	761
benkatz	23:2adf23ee0305	762	(__IO uint64_t)Address = Data;
benkatz	23:2adf23ee0305	763
benkatz	23:2adf23ee0305	764	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	765	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	766
benkatz	23:2adf23ee0305	767	/* if the program operation is completed, disable the PG Bit */
benkatz	23:2adf23ee0305	768	FLASH->CR &= (~FLASH_CR_PG);
benkatz	23:2adf23ee0305	769	}
benkatz	23:2adf23ee0305	770	/* Return the Program Status */
benkatz	23:2adf23ee0305	771	return status;
benkatz	23:2adf23ee0305	772	}
benkatz	23:2adf23ee0305	773
benkatz	23:2adf23ee0305	774	/**
benkatz	23:2adf23ee0305	775	* @brief Programs a word (32-bit) at a specified address.
benkatz	23:2adf23ee0305	776	*
benkatz	23:2adf23ee0305	777	* @note This function must be used when the device voltage range is from 2.7V to 3.6V.
benkatz	23:2adf23ee0305	778	*
benkatz	23:2adf23ee0305	779	* @note If an erase and a program operations are requested simultaneously,
benkatz	23:2adf23ee0305	780	* the erase operation is performed before the program one.
benkatz	23:2adf23ee0305	781	*
benkatz	23:2adf23ee0305	782	* @param Address: specifies the address to be programmed.
benkatz	23:2adf23ee0305	783	* This parameter can be any address in Program memory zone or in OTP zone.
benkatz	23:2adf23ee0305	784	* @param Data: specifies the data to be programmed.
benkatz	23:2adf23ee0305	785	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	786	* FLASH_ERROR_WRP2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	787	*/
benkatz	23:2adf23ee0305	788	FLASH_Status FLASH_ProgramWord(uint32_t Address, uint32_t Data)
benkatz	23:2adf23ee0305	789	{
benkatz	23:2adf23ee0305	790	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	791
benkatz	23:2adf23ee0305	792	/* Check the parameters */
benkatz	23:2adf23ee0305	793	assert_param(IS_FLASH_ADDRESS(Address));
benkatz	23:2adf23ee0305	794
benkatz	23:2adf23ee0305	795	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	796	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	797
benkatz	23:2adf23ee0305	798	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	799	{
benkatz	23:2adf23ee0305	800	/* if the previous operation is completed, proceed to program the new data */
benkatz	23:2adf23ee0305	801	FLASH->CR &= CR_PSIZE_MASK;
benkatz	23:2adf23ee0305	802	FLASH->CR \|= FLASH_PSIZE_WORD;
benkatz	23:2adf23ee0305	803	FLASH->CR \|= FLASH_CR_PG;
benkatz	23:2adf23ee0305	804
benkatz	23:2adf23ee0305	805	(__IO uint32_t)Address = Data;
benkatz	23:2adf23ee0305	806
benkatz	23:2adf23ee0305	807	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	808	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	809
benkatz	23:2adf23ee0305	810	/* if the program operation is completed, disable the PG Bit */
benkatz	23:2adf23ee0305	811	FLASH->CR &= (~FLASH_CR_PG);
benkatz	23:2adf23ee0305	812	}
benkatz	23:2adf23ee0305	813	/* Return the Program Status */
benkatz	23:2adf23ee0305	814	return status;
benkatz	23:2adf23ee0305	815	}
benkatz	23:2adf23ee0305	816
benkatz	23:2adf23ee0305	817	/**
benkatz	23:2adf23ee0305	818	* @brief Programs a half word (16-bit) at a specified address.
benkatz	23:2adf23ee0305	819	* @note This function must be used when the device voltage range is from 2.1V to 3.6V.
benkatz	23:2adf23ee0305	820	*
benkatz	23:2adf23ee0305	821	* @note If an erase and a program operations are requested simultaneously,
benkatz	23:2adf23ee0305	822	* the erase operation is performed before the program one.
benkatz	23:2adf23ee0305	823	*
benkatz	23:2adf23ee0305	824	* @param Address: specifies the address to be programmed.
benkatz	23:2adf23ee0305	825	* This parameter can be any address in Program memory zone or in OTP zone.
benkatz	23:2adf23ee0305	826	* @param Data: specifies the data to be programmed.
benkatz	23:2adf23ee0305	827	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	828	* FLASH_ERROR_WRP2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	829	*/
benkatz	23:2adf23ee0305	830	FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data)
benkatz	23:2adf23ee0305	831	{
benkatz	23:2adf23ee0305	832	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	833
benkatz	23:2adf23ee0305	834	/* Check the parameters */
benkatz	23:2adf23ee0305	835	assert_param(IS_FLASH_ADDRESS(Address));
benkatz	23:2adf23ee0305	836
benkatz	23:2adf23ee0305	837	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	838	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	839
benkatz	23:2adf23ee0305	840	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	841	{
benkatz	23:2adf23ee0305	842	/* if the previous operation is completed, proceed to program the new data */
benkatz	23:2adf23ee0305	843	FLASH->CR &= CR_PSIZE_MASK;
benkatz	23:2adf23ee0305	844	FLASH->CR \|= FLASH_PSIZE_HALF_WORD;
benkatz	23:2adf23ee0305	845	FLASH->CR \|= FLASH_CR_PG;
benkatz	23:2adf23ee0305	846
benkatz	23:2adf23ee0305	847	(__IO uint16_t)Address = Data;
benkatz	23:2adf23ee0305	848
benkatz	23:2adf23ee0305	849	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	850	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	851
benkatz	23:2adf23ee0305	852	/* if the program operation is completed, disable the PG Bit */
benkatz	23:2adf23ee0305	853	FLASH->CR &= (~FLASH_CR_PG);
benkatz	23:2adf23ee0305	854	}
benkatz	23:2adf23ee0305	855	/* Return the Program Status */
benkatz	23:2adf23ee0305	856	return status;
benkatz	23:2adf23ee0305	857	}
benkatz	23:2adf23ee0305	858
benkatz	23:2adf23ee0305	859	/**
benkatz	23:2adf23ee0305	860	* @brief Programs a byte (8-bit) at a specified address.
benkatz	23:2adf23ee0305	861	* @note This function can be used within all the device supply voltage ranges.
benkatz	23:2adf23ee0305	862	*
benkatz	23:2adf23ee0305	863	* @note If an erase and a program operations are requested simultaneously,
benkatz	23:2adf23ee0305	864	* the erase operation is performed before the program one.
benkatz	23:2adf23ee0305	865	*
benkatz	23:2adf23ee0305	866	* @param Address: specifies the address to be programmed.
benkatz	23:2adf23ee0305	867	* This parameter can be any address in Program memory zone or in OTP zone.
benkatz	23:2adf23ee0305	868	* @param Data: specifies the data to be programmed.
benkatz	23:2adf23ee0305	869	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	870	* FLASH_ERROR_WRP2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	871	*/
benkatz	23:2adf23ee0305	872	FLASH_Status FLASH_ProgramByte(uint32_t Address, uint8_t Data)
benkatz	23:2adf23ee0305	873	{
benkatz	23:2adf23ee0305	874	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	875
benkatz	23:2adf23ee0305	876	/* Check the parameters */
benkatz	23:2adf23ee0305	877	assert_param(IS_FLASH_ADDRESS(Address));
benkatz	23:2adf23ee0305	878
benkatz	23:2adf23ee0305	879	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	880	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	881
benkatz	23:2adf23ee0305	882	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	883	{
benkatz	23:2adf23ee0305	884	/* if the previous operation is completed, proceed to program the new data */
benkatz	23:2adf23ee0305	885	FLASH->CR &= CR_PSIZE_MASK;
benkatz	23:2adf23ee0305	886	FLASH->CR \|= FLASH_PSIZE_BYTE;
benkatz	23:2adf23ee0305	887	FLASH->CR \|= FLASH_CR_PG;
benkatz	23:2adf23ee0305	888
benkatz	23:2adf23ee0305	889	(__IO uint8_t)Address = Data;
benkatz	23:2adf23ee0305	890
benkatz	23:2adf23ee0305	891	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	892	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	893
benkatz	23:2adf23ee0305	894	/* if the program operation is completed, disable the PG Bit */
benkatz	23:2adf23ee0305	895	FLASH->CR &= (~FLASH_CR_PG);
benkatz	23:2adf23ee0305	896	}
benkatz	23:2adf23ee0305	897
benkatz	23:2adf23ee0305	898	/* Return the Program Status */
benkatz	23:2adf23ee0305	899	return status;
benkatz	23:2adf23ee0305	900	}
benkatz	23:2adf23ee0305	901
benkatz	23:2adf23ee0305	902	/**
benkatz	23:2adf23ee0305	903	* @}
benkatz	23:2adf23ee0305	904	*/
benkatz	23:2adf23ee0305	905
benkatz	23:2adf23ee0305	906	/** @defgroup FLASH_Group3 Option Bytes Programming functions
benkatz	23:2adf23ee0305	907	* @brief Option Bytes Programming functions
benkatz	23:2adf23ee0305	908	*
benkatz	23:2adf23ee0305	909	@verbatim
benkatz	23:2adf23ee0305	910	===============================================================================
benkatz	23:2adf23ee0305	911	##### Option Bytes Programming functions #####
benkatz	23:2adf23ee0305	912	===============================================================================
benkatz	23:2adf23ee0305	913	[..]
benkatz	23:2adf23ee0305	914	This group includes the following functions:
benkatz	23:2adf23ee0305	915	(+) void FLASH_OB_Unlock(void)
benkatz	23:2adf23ee0305	916	(+) void FLASH_OB_Lock(void)
benkatz	23:2adf23ee0305	917	(+) void FLASH_OB_WRPConfig(uint32_t OB_WRP, FunctionalState NewState)
benkatz	23:2adf23ee0305	918	(+) void FLASH_OB_WRP1Config(uint32_t OB_WRP, FunctionalState NewState)
benkatz	23:2adf23ee0305	919	(+) void FLASH_OB_PCROPSelectionConfig(uint8_t OB_PCROPSelect)
benkatz	23:2adf23ee0305	920	(+) void FLASH_OB_PCROPConfig(uint32_t OB_PCROP, FunctionalState NewState)
benkatz	23:2adf23ee0305	921	(+) void FLASH_OB_PCROP1Config(uint32_t OB_PCROP, FunctionalState NewState)
benkatz	23:2adf23ee0305	922	(+) void FLASH_OB_RDPConfig(uint8_t OB_RDP)
benkatz	23:2adf23ee0305	923	(+) void FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY)
benkatz	23:2adf23ee0305	924	(+) void FLASH_OB_BORConfig(uint8_t OB_BOR)
benkatz	23:2adf23ee0305	925	(+) FLASH_Status FLASH_ProgramOTP(uint32_t Address, uint32_t Data)
benkatz	23:2adf23ee0305	926	(+) FLASH_Status FLASH_OB_Launch(void)
benkatz	23:2adf23ee0305	927	(+) uint32_t FLASH_OB_GetUser(void)
benkatz	23:2adf23ee0305	928	(+) uint8_t FLASH_OB_GetWRP(void)
benkatz	23:2adf23ee0305	929	(+) uint8_t FLASH_OB_GetWRP1(void)
benkatz	23:2adf23ee0305	930	(+) uint8_t FLASH_OB_GetPCROP(void)
benkatz	23:2adf23ee0305	931	(+) uint8_t FLASH_OB_GetPCROP1(void)
benkatz	23:2adf23ee0305	932	(+) uint8_t FLASH_OB_GetRDP(void)
benkatz	23:2adf23ee0305	933	(+) uint8_t FLASH_OB_GetBOR(void)
benkatz	23:2adf23ee0305	934	[..]
benkatz	23:2adf23ee0305	935	The following function can be used only for STM32F42xxx/43xxx devices.
benkatz	23:2adf23ee0305	936	(+) void FLASH_OB_BootConfig(uint8_t OB_BOOT)
benkatz	23:2adf23ee0305	937	[..]
benkatz	23:2adf23ee0305	938	Any operation of erase or program should follow these steps:
benkatz	23:2adf23ee0305	939	(#) Call the FLASH_OB_Unlock() function to enable the FLASH option control
benkatz	23:2adf23ee0305	940	register access
benkatz	23:2adf23ee0305	941
benkatz	23:2adf23ee0305	942	(#) Call one or several functions to program the desired Option Bytes:
benkatz	23:2adf23ee0305	943	(++) void FLASH_OB_WRPConfig(uint32_t OB_WRP, FunctionalState NewState)
benkatz	23:2adf23ee0305	944	=> to Enable/Disable the desired sector write protection
benkatz	23:2adf23ee0305	945	(++) void FLASH_OB_RDPConfig(uint8_t OB_RDP) => to set the desired read
benkatz	23:2adf23ee0305	946	Protection Level
benkatz	23:2adf23ee0305	947	(++) void FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY)
benkatz	23:2adf23ee0305	948	=> to configure the user Option Bytes.
benkatz	23:2adf23ee0305	949	(++) void FLASH_OB_BORConfig(uint8_t OB_BOR) => to set the BOR Level
benkatz	23:2adf23ee0305	950
benkatz	23:2adf23ee0305	951	(#) Once all needed Option Bytes to be programmed are correctly written,
benkatz	23:2adf23ee0305	952	call the FLASH_OB_Launch() function to launch the Option Bytes
benkatz	23:2adf23ee0305	953	programming process.
benkatz	23:2adf23ee0305	954
benkatz	23:2adf23ee0305	955	-@- When changing the IWDG mode from HW to SW or from SW to HW, a system
benkatz	23:2adf23ee0305	956	reset is needed to make the change effective.
benkatz	23:2adf23ee0305	957
benkatz	23:2adf23ee0305	958	(#) Call the FLASH_OB_Lock() function to disable the FLASH option control
benkatz	23:2adf23ee0305	959	register access (recommended to protect the Option Bytes against
benkatz	23:2adf23ee0305	960	possible unwanted operations)
benkatz	23:2adf23ee0305	961
benkatz	23:2adf23ee0305	962	@endverbatim
benkatz	23:2adf23ee0305	963	* @{
benkatz	23:2adf23ee0305	964	*/
benkatz	23:2adf23ee0305	965
benkatz	23:2adf23ee0305	966	/**
benkatz	23:2adf23ee0305	967	* @brief Unlocks the FLASH Option Control Registers access.
benkatz	23:2adf23ee0305	968	* @param None
benkatz	23:2adf23ee0305	969	* @retval None
benkatz	23:2adf23ee0305	970	*/
benkatz	23:2adf23ee0305	971	void FLASH_OB_Unlock(void)
benkatz	23:2adf23ee0305	972	{
benkatz	23:2adf23ee0305	973	if((FLASH->OPTCR & FLASH_OPTCR_OPTLOCK) != RESET)
benkatz	23:2adf23ee0305	974	{
benkatz	23:2adf23ee0305	975	/* Authorizes the Option Byte register programming */
benkatz	23:2adf23ee0305	976	FLASH->OPTKEYR = FLASH_OPT_KEY1;
benkatz	23:2adf23ee0305	977	FLASH->OPTKEYR = FLASH_OPT_KEY2;
benkatz	23:2adf23ee0305	978	}
benkatz	23:2adf23ee0305	979	}
benkatz	23:2adf23ee0305	980
benkatz	23:2adf23ee0305	981	/**
benkatz	23:2adf23ee0305	982	* @brief Locks the FLASH Option Control Registers access.
benkatz	23:2adf23ee0305	983	* @param None
benkatz	23:2adf23ee0305	984	* @retval None
benkatz	23:2adf23ee0305	985	*/
benkatz	23:2adf23ee0305	986	void FLASH_OB_Lock(void)
benkatz	23:2adf23ee0305	987	{
benkatz	23:2adf23ee0305	988	/* Set the OPTLOCK Bit to lock the FLASH Option Byte Registers access */
benkatz	23:2adf23ee0305	989	FLASH->OPTCR \|= FLASH_OPTCR_OPTLOCK;
benkatz	23:2adf23ee0305	990	}
benkatz	23:2adf23ee0305	991
benkatz	23:2adf23ee0305	992	/**
benkatz	23:2adf23ee0305	993	* @brief Enables or disables the write protection of the desired sectors, for the first
benkatz	23:2adf23ee0305	994	* 1 Mb of the Flash
benkatz	23:2adf23ee0305	995	*
benkatz	23:2adf23ee0305	996	* @note When the memory read protection level is selected (RDP level = 1),
benkatz	23:2adf23ee0305	997	* it is not possible to program or erase the flash sector i if CortexM4
benkatz	23:2adf23ee0305	998	* debug features are connected or boot code is executed in RAM, even if nWRPi = 1
benkatz	23:2adf23ee0305	999	* @note Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).
benkatz	23:2adf23ee0305	1000	*
benkatz	23:2adf23ee0305	1001	* @param OB_WRP: specifies the sector(s) to be write protected or unprotected.
benkatz	23:2adf23ee0305	1002	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1003	* @arg OB_WRP: A value between OB_WRP_Sector0 and OB_WRP_Sector11
benkatz	23:2adf23ee0305	1004	* @arg OB_WRP_Sector_All
benkatz	23:2adf23ee0305	1005	* @param Newstate: new state of the Write Protection.
benkatz	23:2adf23ee0305	1006	* This parameter can be: ENABLE or DISABLE.
benkatz	23:2adf23ee0305	1007	* @retval None
benkatz	23:2adf23ee0305	1008	*/
benkatz	23:2adf23ee0305	1009	void FLASH_OB_WRPConfig(uint32_t OB_WRP, FunctionalState NewState)
benkatz	23:2adf23ee0305	1010	{
benkatz	23:2adf23ee0305	1011	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	1012
benkatz	23:2adf23ee0305	1013	/* Check the parameters */
benkatz	23:2adf23ee0305	1014	assert_param(IS_OB_WRP(OB_WRP));
benkatz	23:2adf23ee0305	1015	assert_param(IS_FUNCTIONAL_STATE(NewState));
benkatz	23:2adf23ee0305	1016
benkatz	23:2adf23ee0305	1017	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	1018
benkatz	23:2adf23ee0305	1019	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	1020	{
benkatz	23:2adf23ee0305	1021	if(NewState != DISABLE)
benkatz	23:2adf23ee0305	1022	{
benkatz	23:2adf23ee0305	1023	(__IO uint16_t)OPTCR_BYTE2_ADDRESS &= (~OB_WRP);
benkatz	23:2adf23ee0305	1024	}
benkatz	23:2adf23ee0305	1025	else
benkatz	23:2adf23ee0305	1026	{
benkatz	23:2adf23ee0305	1027	(__IO uint16_t)OPTCR_BYTE2_ADDRESS \|= (uint16_t)OB_WRP;
benkatz	23:2adf23ee0305	1028	}
benkatz	23:2adf23ee0305	1029	}
benkatz	23:2adf23ee0305	1030	}
benkatz	23:2adf23ee0305	1031
benkatz	23:2adf23ee0305	1032	/**
benkatz	23:2adf23ee0305	1033	* @brief Enables or disables the write protection of the desired sectors, for the second
benkatz	23:2adf23ee0305	1034	* 1 Mb of the Flash
benkatz	23:2adf23ee0305	1035	*
benkatz	23:2adf23ee0305	1036	* @note This function can be used only for STM32F42xxx/43xxx devices.
benkatz	23:2adf23ee0305	1037	*
benkatz	23:2adf23ee0305	1038	* @note When the memory read out protection is selected (RDP level = 1),
benkatz	23:2adf23ee0305	1039	* it is not possible to program or erase the flash sector i if CortexM4
benkatz	23:2adf23ee0305	1040	* debug features are connected or boot code is executed in RAM, even if nWRPi = 1
benkatz	23:2adf23ee0305	1041	* @note Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).
benkatz	23:2adf23ee0305	1042	*
benkatz	23:2adf23ee0305	1043	* @param OB_WRP: specifies the sector(s) to be write protected or unprotected.
benkatz	23:2adf23ee0305	1044	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1045	* @arg OB_WRP: A value between OB_WRP_Sector12 and OB_WRP_Sector23
benkatz	23:2adf23ee0305	1046	* @arg OB_WRP_Sector_All
benkatz	23:2adf23ee0305	1047	* @param Newstate: new state of the Write Protection.
benkatz	23:2adf23ee0305	1048	* This parameter can be: ENABLE or DISABLE.
benkatz	23:2adf23ee0305	1049	* @retval None
benkatz	23:2adf23ee0305	1050	*/
benkatz	23:2adf23ee0305	1051	void FLASH_OB_WRP1Config(uint32_t OB_WRP, FunctionalState NewState)
benkatz	23:2adf23ee0305	1052	{
benkatz	23:2adf23ee0305	1053	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	1054
benkatz	23:2adf23ee0305	1055	/* Check the parameters */
benkatz	23:2adf23ee0305	1056	assert_param(IS_OB_WRP(OB_WRP));
benkatz	23:2adf23ee0305	1057	assert_param(IS_FUNCTIONAL_STATE(NewState));
benkatz	23:2adf23ee0305	1058
benkatz	23:2adf23ee0305	1059	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	1060
benkatz	23:2adf23ee0305	1061	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	1062	{
benkatz	23:2adf23ee0305	1063	if(NewState != DISABLE)
benkatz	23:2adf23ee0305	1064	{
benkatz	23:2adf23ee0305	1065	(__IO uint16_t)OPTCR1_BYTE2_ADDRESS &= (~OB_WRP);
benkatz	23:2adf23ee0305	1066	}
benkatz	23:2adf23ee0305	1067	else
benkatz	23:2adf23ee0305	1068	{
benkatz	23:2adf23ee0305	1069	(__IO uint16_t)OPTCR1_BYTE2_ADDRESS \|= (uint16_t)OB_WRP;
benkatz	23:2adf23ee0305	1070	}
benkatz	23:2adf23ee0305	1071	}
benkatz	23:2adf23ee0305	1072	}
benkatz	23:2adf23ee0305	1073
benkatz	23:2adf23ee0305	1074	/**
benkatz	23:2adf23ee0305	1075	* @brief Select the Protection Mode (SPRMOD).
benkatz	23:2adf23ee0305	1076	*
benkatz	23:2adf23ee0305	1077	* @note This function can be used only for STM32F42xxx/43xxx and STM32F401xx/411xE devices.
benkatz	23:2adf23ee0305	1078	*
benkatz	23:2adf23ee0305	1079	* @note After PCROP activation, Option Byte modification is not possible.
benkatz	23:2adf23ee0305	1080	* Exception made for the global Read Out Protection modification level (level1 to level0)
benkatz	23:2adf23ee0305	1081	* @note Once SPRMOD bit is active unprotection of a protected sector is not possible
benkatz	23:2adf23ee0305	1082	*
benkatz	23:2adf23ee0305	1083	* @note Read a protected sector will set RDERR Flag and write a protected sector will set WRPERR Flag
benkatz	23:2adf23ee0305	1084	*
benkatz	23:2adf23ee0305	1085	* @note Some Precautions should be taken when activating the PCROP feature :
benkatz	23:2adf23ee0305	1086	* The active value of nWRPi bits is inverted when PCROP mode is active, this means if SPRMOD = 1
benkatz	23:2adf23ee0305	1087	* and WRPi = 1 (default value), then the user sector i is read/write protected.
benkatz	23:2adf23ee0305	1088	* In order to avoid activation of PCROP Mode for undesired sectors, please follow the
benkatz	23:2adf23ee0305	1089	* below safety sequence :
benkatz	23:2adf23ee0305	1090	* - Disable PCROP for all Sectors using FLASH_OB_PCROPConfig(OB_PCROP_Sector_All, DISABLE) function
benkatz	23:2adf23ee0305	1091	* for Bank1 or FLASH_OB_PCROP1Config(OB_PCROP_Sector_All, DISABLE) function for Bank2
benkatz	23:2adf23ee0305	1092	* - Enable PCROP for the desired Sector i using FLASH_OB_PCROPConfig(Sector i, ENABLE) function
benkatz	23:2adf23ee0305	1093	* - Activate the PCROP Mode FLASH_OB_PCROPSelectionConfig() function.
benkatz	23:2adf23ee0305	1094	*
benkatz	23:2adf23ee0305	1095	* @param OB_PCROP: Select the Protection Mode of nWPRi bits
benkatz	23:2adf23ee0305	1096	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1097	* @arg OB_PcROP_Disable: nWRPi control the write protection of respective user sectors.
benkatz	23:2adf23ee0305	1098	* @arg OB_PcROP_Enable: nWRPi control the read&write protection (PCROP) of respective user sectors.
benkatz	23:2adf23ee0305	1099	* @retval None
benkatz	23:2adf23ee0305	1100	*/
benkatz	23:2adf23ee0305	1101	void FLASH_OB_PCROPSelectionConfig(uint8_t OB_PcROP)
benkatz	23:2adf23ee0305	1102	{
benkatz	23:2adf23ee0305	1103	uint8_t optiontmp = 0xFF;
benkatz	23:2adf23ee0305	1104
benkatz	23:2adf23ee0305	1105	/* Check the parameters */
benkatz	23:2adf23ee0305	1106	assert_param(IS_OB_PCROP_SELECT(OB_PcROP));
benkatz	23:2adf23ee0305	1107
benkatz	23:2adf23ee0305	1108	/* Mask SPRMOD bit */
benkatz	23:2adf23ee0305	1109	optiontmp = (uint8_t)(((__IO uint8_t )OPTCR_BYTE3_ADDRESS) & (uint8_t)0x7F);
benkatz	23:2adf23ee0305	1110	/* Update Option Byte */
benkatz	23:2adf23ee0305	1111	(__IO uint8_t )OPTCR_BYTE3_ADDRESS = (uint8_t)(OB_PcROP \| optiontmp);
benkatz	23:2adf23ee0305	1112
benkatz	23:2adf23ee0305	1113	}
benkatz	23:2adf23ee0305	1114
benkatz	23:2adf23ee0305	1115	/**
benkatz	23:2adf23ee0305	1116	* @brief Enables or disables the read/write protection (PCROP) of the desired
benkatz	23:2adf23ee0305	1117	* sectors, for the first 1 MB of the Flash.
benkatz	23:2adf23ee0305	1118	*
benkatz	23:2adf23ee0305	1119	* @note This function can be used only for STM32F42xxx/43xxx , STM32F401xx/411xE
benkatz	23:2adf23ee0305	1120	* and STM32F412xG devices.
benkatz	23:2adf23ee0305	1121	*
benkatz	23:2adf23ee0305	1122	* @param OB_PCROP: specifies the sector(s) to be read/write protected or unprotected.
benkatz	23:2adf23ee0305	1123	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1124	* @arg OB_PCROP: A value between OB_PCROP_Sector0 and OB_PCROP_Sector11 for
benkatz	23:2adf23ee0305	1125	* STM32F42xxx/43xxx devices and between OB_PCROP_Sector0 and
benkatz	23:2adf23ee0305	1126	* OB_PCROP_Sector5 for STM32F401xx/411xE devices.
benkatz	23:2adf23ee0305	1127	* @arg OB_PCROP_Sector_All
benkatz	23:2adf23ee0305	1128	* @param Newstate: new state of the Write Protection.
benkatz	23:2adf23ee0305	1129	* This parameter can be: ENABLE or DISABLE.
benkatz	23:2adf23ee0305	1130	* @retval None
benkatz	23:2adf23ee0305	1131	*/
benkatz	23:2adf23ee0305	1132	void FLASH_OB_PCROPConfig(uint32_t OB_PCROP, FunctionalState NewState)
benkatz	23:2adf23ee0305	1133	{
benkatz	23:2adf23ee0305	1134	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	1135
benkatz	23:2adf23ee0305	1136	/* Check the parameters */
benkatz	23:2adf23ee0305	1137	assert_param(IS_OB_PCROP(OB_PCROP));
benkatz	23:2adf23ee0305	1138	assert_param(IS_FUNCTIONAL_STATE(NewState));
benkatz	23:2adf23ee0305	1139
benkatz	23:2adf23ee0305	1140	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	1141
benkatz	23:2adf23ee0305	1142	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	1143	{
benkatz	23:2adf23ee0305	1144	if(NewState != DISABLE)
benkatz	23:2adf23ee0305	1145	{
benkatz	23:2adf23ee0305	1146	(__IO uint16_t)OPTCR_BYTE2_ADDRESS \|= (uint16_t)OB_PCROP;
benkatz	23:2adf23ee0305	1147	}
benkatz	23:2adf23ee0305	1148	else
benkatz	23:2adf23ee0305	1149	{
benkatz	23:2adf23ee0305	1150	(__IO uint16_t)OPTCR_BYTE2_ADDRESS &= (~OB_PCROP);
benkatz	23:2adf23ee0305	1151	}
benkatz	23:2adf23ee0305	1152	}
benkatz	23:2adf23ee0305	1153	}
benkatz	23:2adf23ee0305	1154
benkatz	23:2adf23ee0305	1155	/**
benkatz	23:2adf23ee0305	1156	* @brief Enables or disables the read/write protection (PCROP) of the desired
benkatz	23:2adf23ee0305	1157	* sectors
benkatz	23:2adf23ee0305	1158	*
benkatz	23:2adf23ee0305	1159	* @note This function can be used only for STM32F42xxx/43xxx devices.
benkatz	23:2adf23ee0305	1160	*
benkatz	23:2adf23ee0305	1161	* @param OB_PCROP: specifies the sector(s) to be read/write protected or unprotected.
benkatz	23:2adf23ee0305	1162	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1163	* @arg OB_PCROP: A value between OB_PCROP_Sector12 and OB_PCROP_Sector23
benkatz	23:2adf23ee0305	1164	* @arg OB_PCROP_Sector_All
benkatz	23:2adf23ee0305	1165	* @param Newstate: new state of the Write Protection.
benkatz	23:2adf23ee0305	1166	* This parameter can be: ENABLE or DISABLE.
benkatz	23:2adf23ee0305	1167	* @retval None
benkatz	23:2adf23ee0305	1168	*/
benkatz	23:2adf23ee0305	1169	void FLASH_OB_PCROP1Config(uint32_t OB_PCROP, FunctionalState NewState)
benkatz	23:2adf23ee0305	1170	{
benkatz	23:2adf23ee0305	1171	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	1172
benkatz	23:2adf23ee0305	1173	/* Check the parameters */
benkatz	23:2adf23ee0305	1174	assert_param(IS_OB_PCROP(OB_PCROP));
benkatz	23:2adf23ee0305	1175	assert_param(IS_FUNCTIONAL_STATE(NewState));
benkatz	23:2adf23ee0305	1176
benkatz	23:2adf23ee0305	1177	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	1178
benkatz	23:2adf23ee0305	1179	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	1180	{
benkatz	23:2adf23ee0305	1181	if(NewState != DISABLE)
benkatz	23:2adf23ee0305	1182	{
benkatz	23:2adf23ee0305	1183	(__IO uint16_t)OPTCR1_BYTE2_ADDRESS \|= (uint16_t)OB_PCROP;
benkatz	23:2adf23ee0305	1184	}
benkatz	23:2adf23ee0305	1185	else
benkatz	23:2adf23ee0305	1186	{
benkatz	23:2adf23ee0305	1187	(__IO uint16_t)OPTCR1_BYTE2_ADDRESS &= (~OB_PCROP);
benkatz	23:2adf23ee0305	1188	}
benkatz	23:2adf23ee0305	1189	}
benkatz	23:2adf23ee0305	1190	}
benkatz	23:2adf23ee0305	1191
benkatz	23:2adf23ee0305	1192
benkatz	23:2adf23ee0305	1193	/**
benkatz	23:2adf23ee0305	1194	* @brief Sets the read protection level.
benkatz	23:2adf23ee0305	1195	* @param OB_RDP: specifies the read protection level.
benkatz	23:2adf23ee0305	1196	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1197	* @arg OB_RDP_Level_0: No protection
benkatz	23:2adf23ee0305	1198	* @arg OB_RDP_Level_1: Read protection of the memory
benkatz	23:2adf23ee0305	1199	* @arg OB_RDP_Level_2: Full chip protection
benkatz	23:2adf23ee0305	1200	*
benkatz	23:2adf23ee0305	1201	* /!\ Warning /!\ When enabling OB_RDP level 2 it's no more possible to go back to level 1 or 0
benkatz	23:2adf23ee0305	1202	*
benkatz	23:2adf23ee0305	1203	* @retval None
benkatz	23:2adf23ee0305	1204	*/
benkatz	23:2adf23ee0305	1205	void FLASH_OB_RDPConfig(uint8_t OB_RDP)
benkatz	23:2adf23ee0305	1206	{
benkatz	23:2adf23ee0305	1207	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	1208
benkatz	23:2adf23ee0305	1209	/* Check the parameters */
benkatz	23:2adf23ee0305	1210	assert_param(IS_OB_RDP(OB_RDP));
benkatz	23:2adf23ee0305	1211
benkatz	23:2adf23ee0305	1212	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	1213
benkatz	23:2adf23ee0305	1214	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	1215	{
benkatz	23:2adf23ee0305	1216	(__IO uint8_t)OPTCR_BYTE1_ADDRESS = OB_RDP;
benkatz	23:2adf23ee0305	1217
benkatz	23:2adf23ee0305	1218	}
benkatz	23:2adf23ee0305	1219	}
benkatz	23:2adf23ee0305	1220
benkatz	23:2adf23ee0305	1221	/**
benkatz	23:2adf23ee0305	1222	* @brief Programs the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY.
benkatz	23:2adf23ee0305	1223	* @param OB_IWDG: Selects the IWDG mode
benkatz	23:2adf23ee0305	1224	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1225	* @arg OB_IWDG_SW: Software IWDG selected
benkatz	23:2adf23ee0305	1226	* @arg OB_IWDG_HW: Hardware IWDG selected
benkatz	23:2adf23ee0305	1227	* @param OB_STOP: Reset event when entering STOP mode.
benkatz	23:2adf23ee0305	1228	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1229	* @arg OB_STOP_NoRST: No reset generated when entering in STOP
benkatz	23:2adf23ee0305	1230	* @arg OB_STOP_RST: Reset generated when entering in STOP
benkatz	23:2adf23ee0305	1231	* @param OB_STDBY: Reset event when entering Standby mode.
benkatz	23:2adf23ee0305	1232	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1233	* @arg OB_STDBY_NoRST: No reset generated when entering in STANDBY
benkatz	23:2adf23ee0305	1234	* @arg OB_STDBY_RST: Reset generated when entering in STANDBY
benkatz	23:2adf23ee0305	1235	* @retval None
benkatz	23:2adf23ee0305	1236	*/
benkatz	23:2adf23ee0305	1237	void FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY)
benkatz	23:2adf23ee0305	1238	{
benkatz	23:2adf23ee0305	1239	uint8_t optiontmp = 0xFF;
benkatz	23:2adf23ee0305	1240	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	1241
benkatz	23:2adf23ee0305	1242	/* Check the parameters */
benkatz	23:2adf23ee0305	1243	assert_param(IS_OB_IWDG_SOURCE(OB_IWDG));
benkatz	23:2adf23ee0305	1244	assert_param(IS_OB_STOP_SOURCE(OB_STOP));
benkatz	23:2adf23ee0305	1245	assert_param(IS_OB_STDBY_SOURCE(OB_STDBY));
benkatz	23:2adf23ee0305	1246
benkatz	23:2adf23ee0305	1247	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	1248	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	1249
benkatz	23:2adf23ee0305	1250	if(status == FLASH_COMPLETE2)
benkatz	23:2adf23ee0305	1251	{
benkatz	23:2adf23ee0305	1252	#if defined(STM32F427_437xx) \|\| defined(STM32F429_439xx) \|\| defined(STM32F469_479xx)
benkatz	23:2adf23ee0305	1253	/* Mask OPTLOCK, OPTSTRT, BOR_LEV and BFB2 bits */
benkatz	23:2adf23ee0305	1254	optiontmp = (uint8_t)(((__IO uint8_t )OPTCR_BYTE0_ADDRESS) & (uint8_t)0x1F);
benkatz	23:2adf23ee0305	1255	#endif /* STM32F427_437xx \|\| STM32F429_439xx \|\| STM32F469_479xx */
benkatz	23:2adf23ee0305	1256
benkatz	23:2adf23ee0305	1257	#if defined(STM32F40_41xxx) \|\| defined(STM32F401xx) \|\| defined(STM32F410xx) \|\| defined(STM32F411xE) \|\| defined(STM32F446xx)
benkatz	23:2adf23ee0305	1258	/* Mask OPTLOCK, OPTSTRT and BOR_LEV bits */
benkatz	23:2adf23ee0305	1259	optiontmp = (uint8_t)(((__IO uint8_t )OPTCR_BYTE0_ADDRESS) & (uint8_t)0x0F);
benkatz	23:2adf23ee0305	1260	#endif /* STM32F40_41xxx \|\| STM32F401xx \|\| STM32F410xx \|\| STM32F411xE \|\| STM32F446xx */
benkatz	23:2adf23ee0305	1261
benkatz	23:2adf23ee0305	1262	/* Update User Option Byte */
benkatz	23:2adf23ee0305	1263	(__IO uint8_t )OPTCR_BYTE0_ADDRESS = OB_IWDG \| (uint8_t)(OB_STDBY \| (uint8_t)(OB_STOP \| ((uint8_t)optiontmp)));
benkatz	23:2adf23ee0305	1264	}
benkatz	23:2adf23ee0305	1265	}
benkatz	23:2adf23ee0305	1266
benkatz	23:2adf23ee0305	1267	/**
benkatz	23:2adf23ee0305	1268	* @brief Configure the Dual Bank Boot.
benkatz	23:2adf23ee0305	1269	*
benkatz	23:2adf23ee0305	1270	* @note This function can be used only for STM32F42xxx/43xxx devices.
benkatz	23:2adf23ee0305	1271	*
benkatz	23:2adf23ee0305	1272	* @param OB_BOOT: specifies the Dual Bank Boot Option byte.
benkatz	23:2adf23ee0305	1273	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1274	* @arg OB_Dual_BootEnabled: Dual Bank Boot Enable
benkatz	23:2adf23ee0305	1275	* @arg OB_Dual_BootDisabled: Dual Bank Boot Disabled
benkatz	23:2adf23ee0305	1276	* @retval None
benkatz	23:2adf23ee0305	1277	*/
benkatz	23:2adf23ee0305	1278	void FLASH_OB_BootConfig(uint8_t OB_BOOT)
benkatz	23:2adf23ee0305	1279	{
benkatz	23:2adf23ee0305	1280	/* Check the parameters */
benkatz	23:2adf23ee0305	1281	assert_param(IS_OB_BOOT(OB_BOOT));
benkatz	23:2adf23ee0305	1282
benkatz	23:2adf23ee0305	1283	/* Set Dual Bank Boot */
benkatz	23:2adf23ee0305	1284	(__IO uint8_t )OPTCR_BYTE0_ADDRESS &= (~FLASH_OPTCR_BFB2);
benkatz	23:2adf23ee0305	1285	(__IO uint8_t )OPTCR_BYTE0_ADDRESS \|= OB_BOOT;
benkatz	23:2adf23ee0305	1286
benkatz	23:2adf23ee0305	1287	}
benkatz	23:2adf23ee0305	1288
benkatz	23:2adf23ee0305	1289	/**
benkatz	23:2adf23ee0305	1290	* @brief Sets the BOR Level.
benkatz	23:2adf23ee0305	1291	* @param OB_BOR: specifies the Option Bytes BOR Reset Level.
benkatz	23:2adf23ee0305	1292	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1293	* @arg OB_BOR_LEVEL3: Supply voltage ranges from 2.7 to 3.6 V
benkatz	23:2adf23ee0305	1294	* @arg OB_BOR_LEVEL2: Supply voltage ranges from 2.4 to 2.7 V
benkatz	23:2adf23ee0305	1295	* @arg OB_BOR_LEVEL1: Supply voltage ranges from 2.1 to 2.4 V
benkatz	23:2adf23ee0305	1296	* @arg OB_BOR_OFF: Supply voltage ranges from 1.62 to 2.1 V
benkatz	23:2adf23ee0305	1297	* @retval None
benkatz	23:2adf23ee0305	1298	*/
benkatz	23:2adf23ee0305	1299	void FLASH_OB_BORConfig(uint8_t OB_BOR)
benkatz	23:2adf23ee0305	1300	{
benkatz	23:2adf23ee0305	1301	/* Check the parameters */
benkatz	23:2adf23ee0305	1302	assert_param(IS_OB_BOR(OB_BOR));
benkatz	23:2adf23ee0305	1303
benkatz	23:2adf23ee0305	1304	/* Set the BOR Level */
benkatz	23:2adf23ee0305	1305	(__IO uint8_t )OPTCR_BYTE0_ADDRESS &= (~FLASH_OPTCR_BOR_LEV);
benkatz	23:2adf23ee0305	1306	(__IO uint8_t )OPTCR_BYTE0_ADDRESS \|= OB_BOR;
benkatz	23:2adf23ee0305	1307
benkatz	23:2adf23ee0305	1308	}
benkatz	23:2adf23ee0305	1309
benkatz	23:2adf23ee0305	1310	/**
benkatz	23:2adf23ee0305	1311	* @brief Launch the option byte loading.
benkatz	23:2adf23ee0305	1312	* @param None
benkatz	23:2adf23ee0305	1313	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	1314	* FLASH_ERROR_WRP2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	1315	*/
benkatz	23:2adf23ee0305	1316	FLASH_Status FLASH_OB_Launch(void)
benkatz	23:2adf23ee0305	1317	{
benkatz	23:2adf23ee0305	1318	FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	1319
benkatz	23:2adf23ee0305	1320	/* Set the OPTSTRT bit in OPTCR register */
benkatz	23:2adf23ee0305	1321	(__IO uint8_t )OPTCR_BYTE0_ADDRESS \|= FLASH_OPTCR_OPTSTRT;
benkatz	23:2adf23ee0305	1322
benkatz	23:2adf23ee0305	1323	/* Wait for last operation to be completed */
benkatz	23:2adf23ee0305	1324	status = FLASH_WaitForLastOperation2();
benkatz	23:2adf23ee0305	1325
benkatz	23:2adf23ee0305	1326	return status;
benkatz	23:2adf23ee0305	1327	}
benkatz	23:2adf23ee0305	1328
benkatz	23:2adf23ee0305	1329	/**
benkatz	23:2adf23ee0305	1330	* @brief Returns the FLASH User Option Bytes values.
benkatz	23:2adf23ee0305	1331	* @param None
benkatz	23:2adf23ee0305	1332	* @retval The FLASH User Option Bytes values: IWDG_SW(Bit0), RST_STOP(Bit1)
benkatz	23:2adf23ee0305	1333	* and RST_STDBY(Bit2).
benkatz	23:2adf23ee0305	1334	*/
benkatz	23:2adf23ee0305	1335	uint8_t FLASH_OB_GetUser(void)
benkatz	23:2adf23ee0305	1336	{
benkatz	23:2adf23ee0305	1337	/* Return the User Option Byte */
benkatz	23:2adf23ee0305	1338	return (uint8_t)(FLASH->OPTCR >> 5);
benkatz	23:2adf23ee0305	1339	}
benkatz	23:2adf23ee0305	1340
benkatz	23:2adf23ee0305	1341	/**
benkatz	23:2adf23ee0305	1342	* @brief Returns the FLASH Write Protection Option Bytes value.
benkatz	23:2adf23ee0305	1343	* @param None
benkatz	23:2adf23ee0305	1344	* @retval The FLASH Write Protection Option Bytes value
benkatz	23:2adf23ee0305	1345	*/
benkatz	23:2adf23ee0305	1346	uint16_t FLASH_OB_GetWRP(void)
benkatz	23:2adf23ee0305	1347	{
benkatz	23:2adf23ee0305	1348	/* Return the FLASH write protection Register value */
benkatz	23:2adf23ee0305	1349	return ((__IO uint16_t )(OPTCR_BYTE2_ADDRESS));
benkatz	23:2adf23ee0305	1350	}
benkatz	23:2adf23ee0305	1351
benkatz	23:2adf23ee0305	1352	/**
benkatz	23:2adf23ee0305	1353	* @brief Returns the FLASH Write Protection Option Bytes value.
benkatz	23:2adf23ee0305	1354	*
benkatz	23:2adf23ee0305	1355	* @note This function can be used only for STM32F42xxx/43xxx devices.
benkatz	23:2adf23ee0305	1356	*
benkatz	23:2adf23ee0305	1357	* @param None
benkatz	23:2adf23ee0305	1358	* @retval The FLASH Write Protection Option Bytes value
benkatz	23:2adf23ee0305	1359	*/
benkatz	23:2adf23ee0305	1360	uint16_t FLASH_OB_GetWRP1(void)
benkatz	23:2adf23ee0305	1361	{
benkatz	23:2adf23ee0305	1362	/* Return the FLASH write protection Register value */
benkatz	23:2adf23ee0305	1363	return ((__IO uint16_t )(OPTCR1_BYTE2_ADDRESS));
benkatz	23:2adf23ee0305	1364	}
benkatz	23:2adf23ee0305	1365
benkatz	23:2adf23ee0305	1366	/**
benkatz	23:2adf23ee0305	1367	* @brief Returns the FLASH PC Read/Write Protection Option Bytes value.
benkatz	23:2adf23ee0305	1368	*
benkatz	23:2adf23ee0305	1369	* @note This function can be used only for STM32F42xxx/43xxx devices and STM32F401xx/411xE devices.
benkatz	23:2adf23ee0305	1370	*
benkatz	23:2adf23ee0305	1371	* @param None
benkatz	23:2adf23ee0305	1372	* @retval The FLASH PC Read/Write Protection Option Bytes value
benkatz	23:2adf23ee0305	1373	*/
benkatz	23:2adf23ee0305	1374	uint16_t FLASH_OB_GetPCROP(void)
benkatz	23:2adf23ee0305	1375	{
benkatz	23:2adf23ee0305	1376	/* Return the FLASH PC Read/write protection Register value */
benkatz	23:2adf23ee0305	1377	return ((__IO uint16_t )(OPTCR_BYTE2_ADDRESS));
benkatz	23:2adf23ee0305	1378	}
benkatz	23:2adf23ee0305	1379
benkatz	23:2adf23ee0305	1380	/**
benkatz	23:2adf23ee0305	1381	* @brief Returns the FLASH PC Read/Write Protection Option Bytes value.
benkatz	23:2adf23ee0305	1382	*
benkatz	23:2adf23ee0305	1383	* @note This function can be used only for STM32F42xxx/43xxx devices.
benkatz	23:2adf23ee0305	1384	*
benkatz	23:2adf23ee0305	1385	* @param None
benkatz	23:2adf23ee0305	1386	* @retval The FLASH PC Read/Write Protection Option Bytes value
benkatz	23:2adf23ee0305	1387	*/
benkatz	23:2adf23ee0305	1388	uint16_t FLASH_OB_GetPCROP1(void)
benkatz	23:2adf23ee0305	1389	{
benkatz	23:2adf23ee0305	1390	/* Return the FLASH write protection Register value */
benkatz	23:2adf23ee0305	1391	return ((__IO uint16_t )(OPTCR1_BYTE2_ADDRESS));
benkatz	23:2adf23ee0305	1392	}
benkatz	23:2adf23ee0305	1393
benkatz	23:2adf23ee0305	1394	/**
benkatz	23:2adf23ee0305	1395	* @brief Returns the FLASH Read Protection level.
benkatz	23:2adf23ee0305	1396	* @param None
benkatz	23:2adf23ee0305	1397	* @retval FLASH ReadOut Protection Status:
benkatz	23:2adf23ee0305	1398	* - SET, when OB_RDP_Level_1 or OB_RDP_Level_2 is set
benkatz	23:2adf23ee0305	1399	* - RESET, when OB_RDP_Level_0 is set
benkatz	23:2adf23ee0305	1400	*/
benkatz	23:2adf23ee0305	1401	FlagStatus FLASH_OB_GetRDP(void)
benkatz	23:2adf23ee0305	1402	{
benkatz	23:2adf23ee0305	1403	FlagStatus readstatus = RESET;
benkatz	23:2adf23ee0305	1404
benkatz	23:2adf23ee0305	1405	if (((__IO uint8_t)(OPTCR_BYTE1_ADDRESS) != (uint8_t)OB_RDP_Level_0))
benkatz	23:2adf23ee0305	1406	{
benkatz	23:2adf23ee0305	1407	readstatus = SET;
benkatz	23:2adf23ee0305	1408	}
benkatz	23:2adf23ee0305	1409	else
benkatz	23:2adf23ee0305	1410	{
benkatz	23:2adf23ee0305	1411	readstatus = RESET;
benkatz	23:2adf23ee0305	1412	}
benkatz	23:2adf23ee0305	1413	return readstatus;
benkatz	23:2adf23ee0305	1414	}
benkatz	23:2adf23ee0305	1415
benkatz	23:2adf23ee0305	1416	/**
benkatz	23:2adf23ee0305	1417	* @brief Returns the FLASH BOR level.
benkatz	23:2adf23ee0305	1418	* @param None
benkatz	23:2adf23ee0305	1419	* @retval The FLASH BOR level:
benkatz	23:2adf23ee0305	1420	* - OB_BOR_LEVEL3: Supply voltage ranges from 2.7 to 3.6 V
benkatz	23:2adf23ee0305	1421	* - OB_BOR_LEVEL2: Supply voltage ranges from 2.4 to 2.7 V
benkatz	23:2adf23ee0305	1422	* - OB_BOR_LEVEL1: Supply voltage ranges from 2.1 to 2.4 V
benkatz	23:2adf23ee0305	1423	* - OB_BOR_OFF : Supply voltage ranges from 1.62 to 2.1 V
benkatz	23:2adf23ee0305	1424	*/
benkatz	23:2adf23ee0305	1425	uint8_t FLASH_OB_GetBOR(void)
benkatz	23:2adf23ee0305	1426	{
benkatz	23:2adf23ee0305	1427	/* Return the FLASH BOR level */
benkatz	23:2adf23ee0305	1428	return (uint8_t)((__IO uint8_t )(OPTCR_BYTE0_ADDRESS) & (uint8_t)0x0C);
benkatz	23:2adf23ee0305	1429	}
benkatz	23:2adf23ee0305	1430
benkatz	23:2adf23ee0305	1431	/**
benkatz	23:2adf23ee0305	1432	* @}
benkatz	23:2adf23ee0305	1433	*/
benkatz	23:2adf23ee0305	1434
benkatz	23:2adf23ee0305	1435	/** @defgroup FLASH_Group4 Interrupts and flags management functions
benkatz	23:2adf23ee0305	1436	* @brief Interrupts and flags management functions
benkatz	23:2adf23ee0305	1437	*
benkatz	23:2adf23ee0305	1438	@verbatim
benkatz	23:2adf23ee0305	1439	===============================================================================
benkatz	23:2adf23ee0305	1440	##### Interrupts and flags management functions #####
benkatz	23:2adf23ee0305	1441	===============================================================================
benkatz	23:2adf23ee0305	1442	@endverbatim
benkatz	23:2adf23ee0305	1443	* @{
benkatz	23:2adf23ee0305	1444	*/
benkatz	23:2adf23ee0305	1445
benkatz	23:2adf23ee0305	1446	/**
benkatz	23:2adf23ee0305	1447	* @brief Enables or disables the specified FLASH interrupts.
benkatz	23:2adf23ee0305	1448	* @param FLASH_IT: specifies the FLASH interrupt sources to be enabled or disabled.
benkatz	23:2adf23ee0305	1449	* This parameter can be any combination of the following values:
benkatz	23:2adf23ee0305	1450	* @arg FLASH_IT_ERR: FLASH Error Interrupt
benkatz	23:2adf23ee0305	1451	* @arg FLASH_IT_EOP: FLASH end of operation Interrupt
benkatz	23:2adf23ee0305	1452	* @retval None
benkatz	23:2adf23ee0305	1453	*/
benkatz	23:2adf23ee0305	1454	void FLASH_ITConfig(uint32_t FLASH_IT, FunctionalState NewState)
benkatz	23:2adf23ee0305	1455	{
benkatz	23:2adf23ee0305	1456	/* Check the parameters */
benkatz	23:2adf23ee0305	1457	assert_param(IS_FLASH_IT(FLASH_IT));
benkatz	23:2adf23ee0305	1458	assert_param(IS_FUNCTIONAL_STATE(NewState));
benkatz	23:2adf23ee0305	1459
benkatz	23:2adf23ee0305	1460	if(NewState != DISABLE)
benkatz	23:2adf23ee0305	1461	{
benkatz	23:2adf23ee0305	1462	/* Enable the interrupt sources */
benkatz	23:2adf23ee0305	1463	FLASH->CR \|= FLASH_IT;
benkatz	23:2adf23ee0305	1464	}
benkatz	23:2adf23ee0305	1465	else
benkatz	23:2adf23ee0305	1466	{
benkatz	23:2adf23ee0305	1467	/* Disable the interrupt sources */
benkatz	23:2adf23ee0305	1468	FLASH->CR &= ~(uint32_t)FLASH_IT;
benkatz	23:2adf23ee0305	1469	}
benkatz	23:2adf23ee0305	1470	}
benkatz	23:2adf23ee0305	1471
benkatz	23:2adf23ee0305	1472	/**
benkatz	23:2adf23ee0305	1473	* @brief Checks whether the specified FLASH flag is set or not.
benkatz	23:2adf23ee0305	1474	* @param FLASH_FLAG: specifies the FLASH flag to check.
benkatz	23:2adf23ee0305	1475	* This parameter can be one of the following values:
benkatz	23:2adf23ee0305	1476	* @arg FLASH_FLAG_EOP: FLASH End of Operation flag
benkatz	23:2adf23ee0305	1477	* @arg FLASH_FLAG_OPERR: FLASH operation Error flag
benkatz	23:2adf23ee0305	1478	* @arg FLASH_FLAG_WRPERR: FLASH Write protected error flag
benkatz	23:2adf23ee0305	1479	* @arg FLASH_FLAG_PGAERR: FLASH Programming Alignment error flag
benkatz	23:2adf23ee0305	1480	* @arg FLASH_FLAG_PGPERR: FLASH Programming Parallelism error flag
benkatz	23:2adf23ee0305	1481	* @arg FLASH_FLAG_PGSERR: FLASH Programming Sequence error flag
benkatz	23:2adf23ee0305	1482	* @arg FLASH_FLAG_RDERR: FLASH (PCROP) Read Protection error flag (STM32F42xx/43xxx and STM32F401xx/411xE devices)
benkatz	23:2adf23ee0305	1483	* @arg FLASH_FLAG_BSY: FLASH Busy flag
benkatz	23:2adf23ee0305	1484	* @retval The new state of FLASH_FLAG (SET or RESET).
benkatz	23:2adf23ee0305	1485	*/
benkatz	23:2adf23ee0305	1486	FlagStatus FLASH_GetFlagStatus(uint32_t FLASH_FLAG)
benkatz	23:2adf23ee0305	1487	{
benkatz	23:2adf23ee0305	1488	FlagStatus bitstatus = RESET;
benkatz	23:2adf23ee0305	1489	/* Check the parameters */
benkatz	23:2adf23ee0305	1490	assert_param(IS_FLASH_GET_FLAG(FLASH_FLAG));
benkatz	23:2adf23ee0305	1491
benkatz	23:2adf23ee0305	1492	if((FLASH->SR & FLASH_FLAG) != (uint32_t)RESET)
benkatz	23:2adf23ee0305	1493	{
benkatz	23:2adf23ee0305	1494	bitstatus = SET;
benkatz	23:2adf23ee0305	1495	}
benkatz	23:2adf23ee0305	1496	else
benkatz	23:2adf23ee0305	1497	{
benkatz	23:2adf23ee0305	1498	bitstatus = RESET;
benkatz	23:2adf23ee0305	1499	}
benkatz	23:2adf23ee0305	1500	/* Return the new state of FLASH_FLAG (SET or RESET) */
benkatz	23:2adf23ee0305	1501	return bitstatus;
benkatz	23:2adf23ee0305	1502	}
benkatz	23:2adf23ee0305	1503
benkatz	23:2adf23ee0305	1504	/**
benkatz	23:2adf23ee0305	1505	* @brief Clears the FLASH's pending flags.
benkatz	23:2adf23ee0305	1506	* @param FLASH_FLAG: specifies the FLASH flags to clear.
benkatz	23:2adf23ee0305	1507	* This parameter can be any combination of the following values:
benkatz	23:2adf23ee0305	1508	* @arg FLASH_FLAG_EOP: FLASH End of Operation flag
benkatz	23:2adf23ee0305	1509	* @arg FLASH_FLAG_OPERR: FLASH operation Error flag
benkatz	23:2adf23ee0305	1510	* @arg FLASH_FLAG_WRPERR: FLASH Write protected error flag
benkatz	23:2adf23ee0305	1511	* @arg FLASH_FLAG_PGAERR: FLASH Programming Alignment error flag
benkatz	23:2adf23ee0305	1512	* @arg FLASH_FLAG_PGPERR: FLASH Programming Parallelism error flag
benkatz	23:2adf23ee0305	1513	* @arg FLASH_FLAG_PGSERR: FLASH Programming Sequence error flag
benkatz	23:2adf23ee0305	1514	* @arg FLASH_FLAG_RDERR: FLASH Read Protection error flag (STM32F42xx/43xxx and STM32F401xx/411xE devices)
benkatz	23:2adf23ee0305	1515	* @retval None
benkatz	23:2adf23ee0305	1516	*/
benkatz	23:2adf23ee0305	1517	void FLASH_ClearFlag(uint32_t FLASH_FLAG)
benkatz	23:2adf23ee0305	1518	{
benkatz	23:2adf23ee0305	1519	/* Check the parameters */
benkatz	23:2adf23ee0305	1520	assert_param(IS_FLASH_CLEAR_FLAG(FLASH_FLAG));
benkatz	23:2adf23ee0305	1521
benkatz	23:2adf23ee0305	1522	/* Clear the flags */
benkatz	23:2adf23ee0305	1523	FLASH->SR = FLASH_FLAG;
benkatz	23:2adf23ee0305	1524	}
benkatz	23:2adf23ee0305	1525
benkatz	23:2adf23ee0305	1526	/**
benkatz	23:2adf23ee0305	1527	* @brief Returns the FLASH Status.
benkatz	23:2adf23ee0305	1528	* @param None
benkatz	23:2adf23ee0305	1529	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	1530	* FLASH_ERROR_WRP2, FLASH_ERROR_RD2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	1531	*/
benkatz	23:2adf23ee0305	1532	FLASH_Status FLASH_GetStatus(void)
benkatz	23:2adf23ee0305	1533	{
benkatz	23:2adf23ee0305	1534	FLASH_Status flashstatus = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	1535
benkatz	23:2adf23ee0305	1536	if((FLASH->SR & FLASH_FLAG_BSY) == FLASH_FLAG_BSY)
benkatz	23:2adf23ee0305	1537	{
benkatz	23:2adf23ee0305	1538	flashstatus = FLASH_BUSY2;
benkatz	23:2adf23ee0305	1539	}
benkatz	23:2adf23ee0305	1540	else
benkatz	23:2adf23ee0305	1541	{
benkatz	23:2adf23ee0305	1542	if((FLASH->SR & FLASH_FLAG_WRPERR) != (uint32_t)0x00)
benkatz	23:2adf23ee0305	1543	{
benkatz	23:2adf23ee0305	1544	flashstatus = FLASH_ERROR_WRP2;
benkatz	23:2adf23ee0305	1545	}
benkatz	23:2adf23ee0305	1546	else
benkatz	23:2adf23ee0305	1547	{
benkatz	23:2adf23ee0305	1548	if((FLASH->SR & FLASH_FLAG_RDERR) != (uint32_t)0x00)
benkatz	23:2adf23ee0305	1549	{
benkatz	23:2adf23ee0305	1550	flashstatus = FLASH_ERROR_RD2;
benkatz	23:2adf23ee0305	1551	}
benkatz	23:2adf23ee0305	1552	else
benkatz	23:2adf23ee0305	1553	{
benkatz	23:2adf23ee0305	1554	if((FLASH->SR & (uint32_t)0xE0) != (uint32_t)0x00)
benkatz	23:2adf23ee0305	1555	{
benkatz	23:2adf23ee0305	1556	flashstatus = FLASH_ERROR_PROGRAM2;
benkatz	23:2adf23ee0305	1557	}
benkatz	23:2adf23ee0305	1558	else
benkatz	23:2adf23ee0305	1559	{
benkatz	23:2adf23ee0305	1560	if((FLASH->SR & FLASH_FLAG_OPERR) != (uint32_t)0x00)
benkatz	23:2adf23ee0305	1561	{
benkatz	23:2adf23ee0305	1562	flashstatus = FLASH_ERROR_OPERATION2;
benkatz	23:2adf23ee0305	1563	}
benkatz	23:2adf23ee0305	1564	else
benkatz	23:2adf23ee0305	1565	{
benkatz	23:2adf23ee0305	1566	flashstatus = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	1567	}
benkatz	23:2adf23ee0305	1568	}
benkatz	23:2adf23ee0305	1569	}
benkatz	23:2adf23ee0305	1570	}
benkatz	23:2adf23ee0305	1571	}
benkatz	23:2adf23ee0305	1572	/* Return the FLASH Status */
benkatz	23:2adf23ee0305	1573	return flashstatus;
benkatz	23:2adf23ee0305	1574	}
benkatz	23:2adf23ee0305	1575
benkatz	23:2adf23ee0305	1576	/**
benkatz	23:2adf23ee0305	1577	* @brief Waits for a FLASH operation to complete.
benkatz	23:2adf23ee0305	1578	* @param None
benkatz	23:2adf23ee0305	1579	* @retval FLASH Status: The returned value can be: FLASH_BUSY2, FLASH_ERROR_PROGRAM2,
benkatz	23:2adf23ee0305	1580	* FLASH_ERROR_WRP2, FLASH_ERROR_OPERATION2 or FLASH_COMPLETE2.
benkatz	23:2adf23ee0305	1581	*/
benkatz	23:2adf23ee0305	1582	FLASH_Status FLASH_WaitForLastOperation2(void)
benkatz	23:2adf23ee0305	1583	{
benkatz	23:2adf23ee0305	1584	__IO FLASH_Status status = FLASH_COMPLETE2;
benkatz	23:2adf23ee0305	1585
benkatz	23:2adf23ee0305	1586	/* Check for the FLASH Status */
benkatz	23:2adf23ee0305	1587	status = FLASH_GetStatus();
benkatz	23:2adf23ee0305	1588
benkatz	23:2adf23ee0305	1589	/* Wait for the FLASH operation to complete by polling on BUSY flag to be reset.
benkatz	23:2adf23ee0305	1590	Even if the FLASH operation fails, the BUSY flag will be reset and an error
benkatz	23:2adf23ee0305	1591	flag will be set */
benkatz	23:2adf23ee0305	1592	while(status == FLASH_BUSY2)
benkatz	23:2adf23ee0305	1593	{
benkatz	23:2adf23ee0305	1594	status = FLASH_GetStatus();
benkatz	23:2adf23ee0305	1595	}
benkatz	23:2adf23ee0305	1596	/* Return the operation status */
benkatz	23:2adf23ee0305	1597	return status;
benkatz	23:2adf23ee0305	1598	}
benkatz	23:2adf23ee0305	1599
benkatz	23:2adf23ee0305	1600	/**
benkatz	23:2adf23ee0305	1601	* @}
benkatz	23:2adf23ee0305	1602	*/
benkatz	23:2adf23ee0305	1603
benkatz	23:2adf23ee0305	1604	/**
benkatz	23:2adf23ee0305	1605	* @}
benkatz	23:2adf23ee0305	1606	*/
benkatz	23:2adf23ee0305	1607
benkatz	23:2adf23ee0305	1608	/**
benkatz	23:2adf23ee0305	1609	* @}
benkatz	23:2adf23ee0305	1610	*/
benkatz	23:2adf23ee0305	1611
benkatz	23:2adf23ee0305	1612	/**
benkatz	23:2adf23ee0305	1613	* @}
benkatz	23:2adf23ee0305	1614	*/
benkatz	23:2adf23ee0305	1615
benkatz	23:2adf23ee0305	1616	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Type:	Program
Created:	02 Oct 2017
Imports:	24
Forks:	0
Commits:	35
Dependents:	0
Dependencies:	2
Followers:	2

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FlashWriter/stm32f4xx_flash.c@34:47a55f96fbc4, 2017-10-02 (annotated)

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