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第六章-V1.5 STM32 ADC读取电压 ADC采样电压 STM32f103c8t6adc采集电压

2021年07月30日 | MC9S12XEP100 FTM模块驱动程序

2021-07-30 来源：eefocus

MC9S12XEP100的Flash(S12XFTM1024K5V2)包含：

1024KB的P-Flash 内存，包含5个物理Flash blocks，用于存储非易失性代码。

32KB的D-Flash内存，由一个物理Flash block组成，可作为Flash内存存储非易失性数据，或用于支持内建的模拟EEPROM。

4KB的缓存RAM，由一个物理RAM block组成，可用作普通的RAM，或者用于支持内建的模拟EEPROM。

MC9S12(X)系列单片机的Flash内存可以在不加外部电压的情况下自我重编程(擦除/写入)，这是通过FTM模块提供的一个内存控制器来完成的，内存控制器独立于内核运行，用户通过给内存控制器传递命令及参数以使内存控制器修改Flash内存内容或配置模拟EEPROM资源；控制过程如下图：

FTM内存控制器控制流程

本驱动程序对这个控制过程进行了封装(即FTM_LaunchCommand函数)，并进一步对所有可用的命令进行了封装，提供了用户友好的接口，方便各位使用。

下面上代码：

先是FTM.h文件

*********************************************************************************************************

* FLASH TECHNOLOGY MODULE SUPPORT MODULE

* FREESCALE MC9S12XEP100

* 飞思卡尔单片机 FLASH模块(FTM) 支持包

* File : FTM.h

* By : Lin Shijun(http://blog.csdn.net/lin_strong)

* Date : 2020/01/09

* Version : V2.4

* Note : 1. this module is customized for MC9S12XEP100. If used for other derivation, it may need

* some modification according to the PARTID.

* History : 2018/03/12 v1.0 prototype of the package.

* 2018/03/31 v1.1 a little modification.

* 2018/04/12 v2.0 encapsulate all of the FLASH COMMON COMMAND into more user-friendly interface.

* 2018/07/02 v2.1 add code in FTM_LaunchCommand to clear flags.

* 2018/07/05 v2.2 exclude FTM_FSTAT_MASK_MGBUSY from FTM_FSTAT_MASK_ANYERR

* 2019/03/19 v2.3 fix a bug that if EEPROM happens to be updating datas. The FTM may treat

* MGBUSY flag as error. So I remove FTM_FSTAT_MASK_MGBUSY from the

* FTM_FSTAT_MASK_ANYERR malloc.

* some modifications to the configuration malloc.

* 2020/01/09 v2.4 add FTM_EEPROM_WaitFinish interface

*********************************************************************************************************

#ifndef _FTM_H

#define _FTM_H

*********************************************************************************************************

* TYPE DEFINITION 类型定义

*********************************************************************************************************

/*** FSTAT - Flash Status Register; ***/

typedef union {

unsigned char Byte;

struct {

unsigned int MGSTAT0 :1; /* Memory Controller Command Completion Status Flag 0 */

unsigned int MGSTAT1 :1; /* Memory Controller Command Completion Status Flag 1 */

unsigned int :1;

unsigned int MGBUSY :1; /* Memory Controller Busy Flag */

unsigned int FPVIOL :1; /* Flash Protection Violation Flag */

unsigned int ACCERR :1; /* Flash Access Error Flag */

unsigned int :1;

unsigned int CCIF :1; /* Command Complete Interrupt Flag */

} Bits;

} FTM_FSTAT;

#define FTM_FSTAT_MASK_MGSTAT0 1U

#define FTM_FSTAT_MASK_MGSTAT1 2U

#define FTM_FSTAT_MASK_MGBUSY 8U

#define FTM_FSTAT_MASK_FPVIOL 16U

#define FTM_FSTAT_MASK_ACCERR 32U

#define FTM_FSTAT_MASK_CCIF 128U

#define FTM_FSTAT_MASK_ANYERR (FTM_FSTAT_MASK_MGSTAT0 | FTM_FSTAT_MASK_MGSTAT1 |

FTM_FSTAT_MASK_FPVIOL | FTM_FSTAT_MASK_ACCERR)

/*** FERSTAT - Flash Error Status Register; ***/

typedef union {

unsigned char Byte;

struct {

unsigned int SFDIF :1; /* Single Bit Fault Detect Interrupt Flag */

unsigned int DFDIF :1; /* Double Bit Fault Detect Interrupt Flag */

unsigned int ERSVIF0 :1; /* EEE Error Type 0 Interrupt Flag */

unsigned int ERSVIF1 :1; /* EEE Error Type 1 Interrupt Flag */

unsigned int EPVIOLIF :1; /* EEE Protection Violation Interrupt Flag */

unsigned int :1;

unsigned int PGMERIF :1; /* EEE Program Error Interrupt Flag */

unsigned int ERSERIF :1; /* EEE Erase Error Interrupt Flag */

} Bits;

} FTM_FERSTAT;

#define FTM_FERSTAT_MASK_SFDIF 1U

#define FTM_FERSTAT_MASK_DFDIF 2U

#define FTM_FERSTAT_MASK_ERSVIF0 4U

#define FTM_FERSTAT_MASK_ERSVIF1 8U

#define FTM_FERSTAT_MASK_EPVIOLIF 16U

#define FTM_FERSTAT_MASK_PGMERIF 64U

#define FTM_FERSTAT_MASK_ERSERIF 128U

#define FTM_FERSTAT_MASK_ERSVIF 12U

#define FTM_FERSTAT_MASK_ANYERR (FTM_FERSTAT_MASK_SFDIF | FTM_FERSTAT_MASK_DFDIF | FTM_FERSTAT_MASK_ERSVIF0 |

FTM_FERSTAT_MASK_ERSVIF1 | FTM_FERSTAT_MASK_EPVIOLIF | FTM_FERSTAT_MASK_PGMERIF |

FTM_FERSTAT_MASK_ERSERIF)

typedef union{ //Used to copy and store Flash error status registers.

unsigned short Word;

struct{

FTM_FSTAT fstat;

FTM_FERSTAT ferstat;

} Regs;

} FTM_STATUS;

#define FTM_STATUS_WORD(status) ((status).Word)

#define FTM_STATUS_FSTAT_BYTE(status) ((status).Regs.fstat.Byte)

#define FTM_STATUS_FERSTAT_BYTE(status) ((status).Regs.ferstat.Byte)

typedef struct {

// values if prior to partitioning.

// dfPart = 0xffff, erPart = 0xffff, ECOUNT = 0xffff, deadCnt = 0x00, rdyCnt = 0x00

unsigned short dfPart; // the number of D-flash Sector for genernal use. 0 - 128.

unsigned short erPart; // the number of EEE RAM sections for the FTM (Flash module) to use as EEE. 0 - 16.

unsigned short ersCnt; // sector erase count.

unsigned char deadCnt; // dead sector count.

unsigned char rdyCnt; // ready sector count.

} FTM_EEE_STATUS,*pFTM_EEE_STATUS;

typedef struct {

unsigned short word0;

unsigned short word1;

unsigned short word2;

unsigned short word3;

} INT64U,FTM_KEYGEN;

*********************************************************************************************************

* FLASH COMMON COMMAND FLASH通用命令

*********************************************************************************************************

/**** P-Flash and D-Flash Commands ****/

#define ERASE_VERIFY_ALL_BLOCKS 0x01

// Verify that all program and data Flash blocks are erased.

// CCOBIX end = 0

// CCOB Params - NONE

// MGSTAT set if fault

#define ERASE_VERIFY_BLOCK 0x02

// Verify that a Flash block is erased.

// CCOBIX end = 0

// CCOB Params - gpage

// MGSTAT set if fault

#define ERASE_ALL_BLOCKS 0x08

// Erase all program and data Flash blocks.

// An erase of all Flash blocks is only possible when the FPLDIS, FPHDIS, and FPOPEN

// bits in the FPROT register and the EPDIS and EPOPEN bits in the EPROM register are

// set prior to launching the command.

// CCOBIX end = 0

// CCOB Params - NONE

// MGSTAT set if fault, FPVIOL / ACCERR set where appropriate

#define UNSECURE_FLASH 0x0B

// Supports a method of releasing MCU security by erasing all program and data Flash

// blocks and verifying that all program and data Flash blocks are erased.

// CCOBIX end = 0

// CCOB Params - NONE

// MGSTAT set if fault

#define SET_USER_MARGIN_LEVEL 0x0D

// Specifies a user margin read level for all program Flash blocks.

MC9S12XEP100 FTM模块驱动程序

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2021年07月30日 | MC9S12XEP100 FTM模块 驱动程序

2021年07月30日 | MC9S12XEP100 FTM模块驱动程序