nxp lpc1850 外部flash算法 jlink下载配置 和 内部sram下载配置

有的芯片如nxp lpc1850没有内部flash，没法直接下载，需要在下载前先对cpu进行一些配置，然后才能下载。

调试时配置文件，主要包含启动配置。

下载时管脚配置文件

Hitex_Flash.ini 启动代码

FUNC?void?Setup?(unsigned?int?region)?{
??region?&=?0xFFFF0000;
??printf("Debugging?image?at?0x%08xn",?region);
??SP?=?_RDWORD(region);??????????????????????????//?Setup?Stack?Pointer
??PC?=?_RDWORD(region?+?4);??????????????????????????//?Setup?Program?Counter
??_WDWORD(0xE000ED08,?region);???????????????????//?Setup?Vector?Table?Offset?Register
}

LOAD?"Hitex?Flashexample.axf"?INCREMENTAL
Setup(0x1C000000);?//?Get?ready?to?execute?image?in?SRAM?or?whatever?region?it?is?in
//g,main

LPC18xx_43xx_ExtFlash16Prog.ini 管脚配置 启动EMC，因为EMC对外部存储器进行控制

FUNC?void?LPC1850_4350_setupEmc?(void)
{
????//?Disable?the?EMC?before?changing?pin?configurations
????_WDWORD(0x40005000,?0x00000000);????/*?Disable?the?EMC?*/
????
????//?Data?bus?pins?D[15:0]
????_WDWORD(0x4008609C,?0x000000F3);????/*?P1_7:??D0??(function?3)?*/
????_WDWORD(0x400860A0,?0x000000F3);????/*?P1_8:??D1??(function?3)?*/
????_WDWORD(0x400860A4,?0x000000F3);????/*?P1_9:??D2??(function?3)?*/
????_WDWORD(0x400860A8,?0x000000F3);????/*?P1_10:?D3??(function?3)?*/
????_WDWORD(0x400860AC,?0x000000F3);????/*?P1_11:?D4??(function?3)?*/
????_WDWORD(0x400860B0,?0x000000F3);????/*?P1_12:?D5??(function?3)?*/
????_WDWORD(0x400860B4,?0x000000F3);????/*?P1_13:?D6??(function?3)?*/
????_WDWORD(0x400860B8,?0x000000F3);????/*?P1_14:?D7??(function?3)?*/
????_WDWORD(0x40086290,?0x000000F2);????/*?P5_4:??D8??(function?2)?*/
????_WDWORD(0x40086294,?0x000000F2);????/*?P5_5:??D9??(function?2)?*/
????_WDWORD(0x40086298,?0x000000F2);????/*?P5_6:??D10?(function?2)?*/
????_WDWORD(0x4008629C,?0x000000F2);????/*?P5_7:??D11?(function?2)?*/
????_WDWORD(0x40086280,?0x000000F2);????/*?P5_0:??D12?(function?2)?*/
????_WDWORD(0x40086284,?0x000000F2);????/*?P5_1:??D13?(function?2)?*/
????_WDWORD(0x40086288,?0x000000F2);????/*?P5_2:??D14?(function?2)?*/
????_WDWORD(0x4008628C,?0x000000F2);????/*?P5_3:??D15?(function?2)?*/

?
????//?Address?bus?pins?A[22:0]
????_WDWORD(0x40086124,?0x000000F3);????/*?P2_9:??A0??(function?3)?*/
????_WDWORD(0x40086128,?0x000000F3);????/*?P2_10:?A1??(function?3)?*/
????_WDWORD(0x4008612C,?0x000000F3);????/*?P2_11:?A2??(function?3)?*/
????_WDWORD(0x40086130,?0x000000F3);????/*?P2_12:?A3??(function?3)?*/
????_WDWORD(0x40086134,?0x000000F3);????/*?P2_13:?A4??(function?3)?*/
????_WDWORD(0x40086080,?0x000000F2);????/*?P1_0:??A5??(function?2)?*/
????_WDWORD(0x40086084,?0x000000F2);????/*?P1_1:??A6??(function?2)?*/
????_WDWORD(0x40086088,?0x000000F2);????/*?P1_2:??A7??(function?2)?*/
????_WDWORD(0x40086120,?0x000000F3);????/*?P2_8:??A8??(function?3)?*/
????_WDWORD(0x4008611C,?0x000000F3);????/*?P2_7:??A9??(function?3)?*/
????_WDWORD(0x40086118,?0x000000F2);????/*?P2_6:??A10?(function?2)?*/
????_WDWORD(0x40086108,?0x000000F2);????/*?P2_2:??A11?(function?2)?*/
????_WDWORD(0x40086104,?0x000000F2);????/*?P2_1:??A12?(function?2)?*/
????_WDWORD(0x40086100,?0x000000F2);????/*?P2_0:??A13?(function?2)?*/
????_WDWORD(0x40086320,?0x000000F1);????/*?P6_8:??A14?(function?1)?*/
????_WDWORD(0x4008631C,?0x000000F1);????/*?P6_7:??A15?(function?1)?*/
????_WDWORD(0x400866C0,?0x000000F2);????/*?PD_16:?A16?(function?2)?*/
????_WDWORD(0x400866BC,?0x000000F2);????/*?PD_15:?A17?(function?2)?*/
????_WDWORD(0x40086700,?0x000000F3);????/*?PE_0:??A18?(function?3)?*/
????_WDWORD(0x40086704,?0x000000F3);????/*?PE_1:??A19?(function?3)?*/
????_WDWORD(0x40086708,?0x000000F3);????/*?PE_2:??A20?(function?3)?*/
????_WDWORD(0x4008670C,?0x000000F3);????/*?PE_3:??A21?(function?3)?*/
????_WDWORD(0x40086710,?0x000000F3);????/*?PE_4:??A22?(function?3)?*/

????//#?Control?signals?
????_WDWORD(0x40086094,?0x000000F3);????/*?P1_5:??CS0?(function?3)?*/
????_WDWORD(0x40086098,?0x000000F3);????/*?P1_6:??WE??(function?3)?*/
????_WDWORD(0x4008608C,?0x000000F3);????/*?P1_3:??OE??(function?3)?*/
????
????//#?Enable?the?EMC?before?waitstate?configurations
????_WDWORD(0x40005000,?0x00000001);????/*?Enable?the?EMC????*/
????
????//#?Configuration?for?flash?on?CS0?(14WS?for?70ns?memory?@?204?MHz?core?clock)?
????_WDWORD(0x40005200,?0x00000081);????/*?CS0:?16?bit,?WE???*/
????_WDWORD(0x40005208,?0x00000000);????/*?CS0:?WAITOEN?=?0??*/
????_WDWORD(0x4000520C,?0x0000000E);????/*?CS0:?WAITRD?=?14??*/
}


//#?Initialize?the?external?memory?interface.?If?booting?in?EMC?mode,//#?the?bootloader?initializes?the?EMC,?but?enables?only?A[13:0].
LPC1850_4350_setupEmc();

flash芯片算法 kei里面都带着的D:Program FilesKeilARMFlashMX29LV320B 后面具体为应用芯片，选定芯片后，打开工程，有FlashDev.c 和FlashPrg.c，编译后，就会产生MX29LV320B.FLM，在flash里添加算法。

struct?FlashDevice?const?FlashDevice??=??{
???FLASH_DRV_VERS,?????????????//?Driver?Version,?do?not?modify!
???"MX29LV320EB?Flash",?//?Device?Name?
???EXT16BIT,???????????????????//?Device?Type
???0x00000000,?????????????????//?Device?Start?Address
???0x00400000,?????????????????//?1片的Device?Size?in?Bytes?(4MB)?2片的0x00800000(8M)
???1024,???????????????????????//?Programming?Page?Size
???0,??????????????????????????//?Reserved,?must?be?0
???0xFF,???????????????????????//?Initial?Content?of?Erased?Memory
???100,????????????????????????//?Program?Page?Timeout?100?mSec
???1000,???????????????????????//?Erase?Sector?Timeout?1000?mSec

//?Specify?Size?and?Address?of?Sectors
//?Size???,?Address
???0x02000,?0x000000,?????????//?Sector?Size?8kB?(8?Sectors)?根据具体芯片修改?0x04000,?0x0000000?2*?8kB
???0x10000,?0x010000,?????????//?Sector?Size?64kB?(63?Sectors)???????????????0x20000,?0x0020000?2*?63kB
???SECTOR_END
};

编写flash1片与2片区别?FlashPrg.c

#if?0?//如果2片

#define?CMD_RST??????(0x0000F0F0)???????/*?Reset?Command??????????????????????*/
#define?CMD_ERS??????(0x00008080)???????/*?Erase?Command??????????????????????*/
#define?START_CE?????(0x00001010)???????/*?Start?Chip?Erase?Command???????????*/
#define?START_SE?????(0x00003030)???????/*?Start?Sector?Erase?Command?????????*/
#define?START_LD?????(0x0000A0A0)???????/*?Start?Load?Data?for?Programming????*/
#define?VAL_AA???????(0x0000AAAA)???????/*?Hex?Value?0xAA?????????????????????*/
#define?VAL_55???????(0x00005555)???????/*?Hex?Value?0x55?????????????????????*/

#define?DQ7??????????(0x00008080)???????/*?DQ7?bit?mask???????????????????????*/
#define?DQ6??????????(0x00004040)???????/*?DQ6?bit?mask???????????????????????*/
#define?DQ5??????????(0x00002020)???????/*?DQ5?bit?mask???????????????????????*/
#define?DQ3??????????(0x00000808)???????/*?DQ3?bit?mask???????????????????????*/
#define?DQ2??????????(0x00000404)???????/*?DQ2?bit?mask???????????????????????*/
#define?DQ1??????????(0x00000202)???????/*?DQ1?bit?mask???????????????????????*/

#else?//1片

#define?CMD_RST??????(0xF0)???????/*?Reset?Command??????????????????????*/
#define?CMD_ERS??????(0x80)???????/*?Erase?Command??????????????????????*/
#define?START_CE?????(0x10)???????/*?Start?Chip?Erase?Command???????????*/
#define?START_SE?????(0x30)???????/*?Start?Sector?Erase?Command?????????*/
#define?START_LD?????(0xA0)???????/*?Start?Load?Data?for?Programming????*/
#define?VAL_AA???????(0xAA)???????/*?Hex?Value?0xAA?????????????????????*/
#define?VAL_55???????(0x55)???????/*?Hex?Value?0x55?????????????????????*/

#define?DQ7??????????(0x80)???????/*?DQ7?bit?mask???????????????????????*/
#define?DQ6??????????(0x40)???????/*?DQ6?bit?mask???????????????????????*/
#define?DQ5??????????(0x20)???????/*?DQ5?bit?mask???????????????????????*/
#define?DQ3??????????(0x08)???????/*?DQ3?bit?mask???????????????????????*/
#define?DQ2??????????(0x04)???????/*?DQ2?bit?mask???????????????????????*/
#define?DQ1??????????(0x02)???????/*?DQ1?bit?mask???????????????????????*/

#endif

如果，下载成功校验成功，但是仿真时失败，找不到地址时，就把LPC18xx_43xx_ExtFlash16Prog.ini中的地址配置代码添加到Hitex_Flash.ini当中就可以进行仿真了。

内部sram下载

下载选择 Internal_SRAM.ini

因为ram可以直接读写所以不需要 管脚等配置

下载ram也不需要对写算法，flash需要

irom1，启动地址与内部ram的一致

Internal_SRAM.ini源码

FUNC?void?Setup?(unsigned?int?region)?{
??region?&=?0xFFFF0000;
??SP?=?_RDWORD(region);??????????????????????????//?Setup?Stack?Pointer
??PC?=?_RDWORD(region?+?4);??????????????????????????//?Setup?Program?Counter
??_WDWORD(0xE000ED08,?region);???????????????????//?Setup?Vector?Table?Offset?Register
}

LOAD?"Internal?SRAMexample.axf"?INCREMENTAL
Setup(0x10000000);?//?Get?ready?to?execute?image?in?SRAM?or?whatever?region?it?is?in
//g,main