关于MT6235的地址线问题

heimao_lixin · 发表于 2009-7-27 16:03:33

我们现在做了一个35平台的项目，发现有一个和25/26不同的一个地方。
35＋MCP(NAND+DSRAM),SDRAM是16位寻址；从35的A0开始拉出地址；
25＋MCP(NOR+utRAM),MCP也是16位寻址，但是从25的A1开始接出来；

请问35的指令系统是16位的吗？25的是8位的吗?才导致地址开始的地方不一致。

请达人指教，多谢！

wangjun · 发表于 2009-7-28 19:06:48

顶一下啊！

heimao_lixin · 发表于 2009-7-29 09:30:07

怎么没人相应呀

aquasnake · 发表于 2009-7-30 12:18:27

或许开发SOC的时候认为A0在16bit系统中不可能产生外部单字节寻址而省略了这个PIN，而把A1标注为A0，这样接同样16bit MEMORY就不会带来疑惑了

aquasnake · 发表于 2009-7-30 12:22:02

以下是引用aquasnake在2009-7-30 12:18:27的发言：
或许开发SOC的时候认为A0在16bit系统中不可能产生外部单字节寻址而省略了这个PIN，而把A1标注为A0，这样接同样16bit MEMORY就不会带来疑惑了

如果我的假设是事实，那么我感觉这种标注会让系统设计者产生更大的疑惑（除非有ref design或者辅助文档说明）。

个人还是习惯传统标注，至于A0，通常系统悬空，可以作成复用PIN，可以把GPIO或者其他功能在里面，这样就不会浪费PIN脚了

wostang · 发表于 2009-7-30 13:08:14

提示: 作者被禁止或删除内容自动屏蔽

zh_hongbin · 发表于 2009-7-30 15:33:28

不知道呀

zh_hongbin · 发表于 2009-8-1 14:25:11

不知道呀

sunhong · 发表于 2009-8-1 22:41:44

以下是引用wostang在2009-7-30 13:08:14的发言：
35的指令系统是16位,25的是8位

不是吧。ARM有16位的thumb,32位的arm。没有8位的吧。
MTK软件编译用的是ARM指令还是thumb，请大家指教

wostang · 发表于 2009-8-3 10:39:21

提示: 作者被禁止或删除内容自动屏蔽

bigsweat · 发表于 2009-8-4 17:35:16

摘自35 design notice：

EA0 of MT6235 is word address, no need to shift when connect 16 bit memory device.

you433 · 发表于 2009-8-5 23:50:43

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zjc8858 · 发表于 2009-8-9 18:11:34

楼上的改行了！！[em05][em05]

Yugang_Lee · 发表于 2009-8-10 13:11:56

12楼的，见一次，BS一次！

heimao_lixin · 发表于 2009-9-3 14:32:52

BS 12楼的！

fireman11011 · 发表于 2009-9-3 19:11:21

对于16位FLASHCPU的A0不会影响FLASH读取地址，
就像5#兄弟说的可以用做复用。

cylbailey · 发表于 2009-9-6 19:51:06

以下是引用fireman11011在2009-9-3 19:11:21的发言：
对于16位FLASHCPU的A0不会影响FLASH读取地址，
就像5#兄弟说的可以用做复用。

有SDRAM controller的，该接哪接哪，没什么好讲的。

yjryjryjr · 发表于 2009-9-14 11:13:55

6235重启，dbg_print信息如下，那位高手解决一下
linkAddr[1]=3
linkAddr[2]=0
linkAddr[3]=0
Start loading ExtBootloader...
ReadPage dest=0x1cc0000, pNo=0x40, len=512, type=0
ReadPage dest=0x1cc0200, pNo=0x41, len=512, type=0
ReadPage dest=0x1cc0400, pNo=0x42, len=512, type=0
ReadPage dest=0x1cc0600, pNo=0x43, len=512, type=0
ReadPage dest=0x1cc0800, pNo=0x44, len=512, type=0
ReadPage dest=0x1cc0a00, pNo=0x45, len=512, type=0
ReadPage dest=0x1cc0c00, pNo=0x46, len=512, type=0
ReadPage dest=0x1cc0e00, pNo=0x47, len=512, type=0
ReadPage dest=0x1cc1000, pNo=0x48, len=512, type=0
ReadPage dest=0x1cc1200, pNo=0x49, len=512, type=0
ReadPage dest=0x1cc1400, pNo=0x4a, len=512, type=0
ReadPage dest=0x1cc1600, pNo=0x4b, len=512, type=0
ReadPage dest=0x1cc1800, pNo=0x4c, len=512, type=0
ReadPage dest=0x1cc1a00, pNo=0x4d, len=512, type=0
ReadPage dest=0x1cc1c00, pNo=0x4e, len=512, type=0
ReadPage dest=0x1cc1e00, pNo=0x4f, len=512, type=0
ReadPage dest=0x1cc2000, pNo=0x50, len=512, type=0
ReadPage dest=0x1cc2200, pNo=0x51, len=512, type=0
ReadPage dest=0x1cc2400, pNo=0x52, len=512, type=0
ReadPage dest=0x1cc2600, pNo=0x53, len=512, type=0
ReadPage dest=0x1cc2800, pNo=0x54, len=512, type=0
ReadPage dest=0x1cc2a00, pNo=0x55, len=512, type=0
ReadPage dest=0x1cc2c00, pNo=0x56, len=512, type=0
ReadPage dest=0x1cc2e00, pNo=0x57, len=512, type=0
ReadPage dest=0x1cc3000, pNo=0x58, len=512, type=0
ReadPage dest=0x1cc3200, pNo=0x59, len=512, type=0
ReadPage dest=0x1cc3400, pNo=0x5a, len=512, type=0
ReadPage dest=0x1cc3600, pNo=0x5b, len=512, type=0
ReadPage dest=0x1cc3800, pNo=0x5c, len=512, type=0
ReadPage dest=0x1cc3a00, pNo=0x5d, len=512, type=0
ReadPage dest=0x1cc3c00, pNo=0x5e, len=512, type=0
ReadPage dest=0x1cc3e00, pNo=0x5f, len=512, type=0
ReadPage dest=0x1cc4000, pNo=0x60, len=512, type=0
ReadPage dest=0x1cc4200, pNo=0x61, len=512, type=0
ReadPage dest=0x1cc4400, pNo=0x62, len=512, type=0
ReadPage dest=0x1cc4600, pNo=0x63, len=512, type=0
ReadPage dest=0x1cc4800, pNo=0x64, len=512, type=0
ReadPage dest=0x1cc4a00, pNo=0x65, len=512, type=0
ReadPage dest=0x1cc4c00, pNo=0x66, len=512, type=0
ReadPage dest=0x1cc4e00, pNo=0x67, len=512, type=0
ReadPage dest=0x1cc5000, pNo=0x68, len=512, type=0
ReadPage dest=0x1cc5200, pNo=0x69, len=512, type=0
ReadPage dest=0x1cc5400, pNo=0x6a, len=260, type=0
ExtBootloader loading is done, last linkAddr=1, len=0
Verifying ExtBootloader...

~~~ Welcome to MTK Bootloader V005 (since 2005) ~~~
**===================================================**

Find and load image list block...
Procressing block 0x4
ReadPage dest=0x40001000, pNo=0x80, len=512, type=-1
ReadPage dest=0x40001000, pNo=0x9f, len=512, type=-1
Procressing block 0x5
ReadPage dest=0x40001000, pNo=0xa0, len=512, type=-1
Unrecognized block, skip it
Main=0x4, Tmp=0x0, Fota=0x0, Bak=0x0
ReadPage dest=0x40001000, pNo=0x82, len=512, type=-1

Number of image segments = 4
..[0] Image size = 352Bytes, start addr. =0x428
..[1] Image size = 2377816Bytes, start addr. =0x0
..[2] Image size = 8659212Bytes, start addr. =0x248858
..[3] Image size = 7743676Bytes, start addr. =-0xe000000
ReadPage dest=0x40001000, pNo=0x83, len=512, type=-1
GetFeatureCombination()
g_mauiFeatureCombination=0x8, bl combination=1342219160
FactoryProcedure BL_FC=0x8 MAUI_FC=0x8
Start loading image...
..................................................................................................................................................................................................................................................................................................NFB image index: 1...

Bye bye bootloader, jump to=0x0
Bootloader total duration = 0 ms
SD_Cmd8 fail
SD_Cmd8 fail
SD_Cmd8 fail
SD_Cmd8 fail

cold reset
L1usim_Reset

噜
e dest=0x1cc0e00, pNo=0x47, len=512, type=0
ReadPage dest=0x1cc1000, pNo=0x48, len=512, type=0
ReadPage dest=0x1cc1200, pNo=0x49, len=512, type=0
ReadPage dest=0x1cc1400, pNo=0x4a, len=512, type=0
ReadPage dest=0x1cc1600, pNo=0x4b, len=512, type=0
ReadPage dest=0x1cc1800, pNo=0x4c, len=512, type=0
ReadPage dest=0x1cc1a00, pNo=0x4d, len=512, type=0
ReadPage dest=0x1cc1c00, pNo=0x4e, len=512, type=0
ReadPage dest=0x1cc1e00, pNo=0x4f, len=512, type=0
ReadPage dest=0x1cc2000, pNo=0x50, len=512, type=0
ReadPage dest=0x1cc2200, pNo=0x51, len=512, type=0
ReadPage dest=0x1cc2400, pNo=0x52, len=512, type=0
ReadPage dest=0x1cc2600, pNo=0x53, len=512, type=0
ReadPage dest=0x1cc2800, pNo=0x54, len=512, type=0
ReadPage dest=0x1cc2a00, pNo=0x55, len=512, type=0
ReadPage dest=0x1cc2c00, pNo=0x56, len=512, type=0
ReadPage dest=0x1cc2e00, pNo=0x57, len=512, type=0
ReadPage dest=0x1cc3000, pNo=0x58, len=512, type=0
ReadPage dest=0x1cc3200, pNo=0x59, len=512, type=0
ReadPage dest=0x1cc3400, pNo=0x5a, len=512, type=0
ReadPage dest=0x1cc3600, pNo=0x5b, len=512, type=0
ReadPage dest=0x1cc3800, pNo=0x5c, len=512, type=0
ReadPage dest=0x1cc3a00, pNo=0x5d, len=512, type=0
ReadPage dest=0x1cc3c00, pNo=0x5e, len=512, type=0
ReadPage dest=0x1cc3e00, pNo=0x5f, len=512, type=0
ReadPage dest=0x1cc4000, pNo=0x60, len=512, type=0
ReadPage dest=0x1cc4200, pNo=0x61, len=512, type=0
ReadPage dest=0x1cc4400, pNo=0x62, len=512, type=0
ReadPage dest=0x1cc4600, pNo=0x63, len=512, type=0
ReadPage dest=0x1cc4800, pNo=0x64, len=512, type=0
ReadPage dest=0x1cc4a00, pNo=0x65, len=512, type=0
ReadPage dest=0x1cc4c00, pNo=0x66, len=512, type=0
ReadPage dest=0x1cc4e00, pNo=0x67, len=512, type=0
ReadPage dest=0x1cc5000, pNo=0x68, len=512, type=0
ReadPage dest=0x1cc5200, pNo=0x69, len=512, type=0
ReadPage dest=0x1cc5400, pNo=0x6a, len=260, type=0
ExtBootloader loading is done, last linkAddr=1, len=0
Verifying ExtBootloader...

~~~ Welcome to MTK Bootloader V005 (since 2005) ~~~
**=========================================
==========**

Find and load image list block...
Procressing block 0x4
ReadPage dest=0x40001000, pNo=0x80, len=512, type=-1
ReadPage dest=0x40001000, pNo=0x9f, len=512, type=-1
Procressing block 0x5
ReadPage dest=0x40001000, pNo=0xa0, len=512, type=-1
Unrecognized block, skip it
Main=0x4, Tmp=0x0, Fota=0x0, Bak=0x0
ReadPage dest=0x40001000, pNo=0x82, len=512, type=-1

Number of image segments = 4
..[0] Image size = 352Bytes, start addr. =0x428
..[1] Image size = 2377816Bytes, start addr. =0x0
..[2] Image size = 8659212Bytes, start addr. =0x248858
..[3] Image size = 7743676Bytes, start addr. =-0xe000000
ReadPage dest=0x40001000, pNo=0x83, len=512, type=-1
GetFeatureCombination()
g_mauiFeatureCombination=0x8, bl combination=1342219160
FactoryProcedure BL_FC=0x8 MAUI_FC=0x8
Start loading image...
...........................................................................................
.................................................................................................................................
......................................................................NFB image index: 1...

Bye bye bootloader, jump to=0x0
Bootloader total duration = 0 ms

SD_Cmd8 fail
SD_Cmd8 fail
SD_Cmd8 fail
SD_Cmd8 fail

cold reset
L1usim_Reset

噜
c1c00, pNo=0x4e, len=512, type=0
ReadPage dest=0x1cc1e00, pNo=0x4f, len=512, type=0
ReadPage dest=0x1cc2000, pNo=0x50, len=512, type=0
ReadPage dest=0x1cc2200, pNo=0x51, len=512, type=0
ReadPage dest=0x1cc2400, pNo=0x52, len=512, type=0
ReadPage dest=0x1cc2600, pNo=0x53, len=512, type=0
ReadPage dest=0x1cc2800, pNo=0x54, len=512, type=0
ReadPage dest=0x1cc2a00, pNo=0x55, len=512, type=0
ReadPage dest=0x1cc2c00, pNo=0x56, len=512, type=0
ReadPage dest=0x1cc2e00, pNo=0x57, len=512, type=0
ReadPage dest=0x1cc3000, pNo=0x58, len=512, type=0
ReadPage dest=0x1cc3200, pNo=0x59, len=512, type=0
ReadPage dest=0x1cc3400, pNo=0x5a, len=512, type=0
ReadPage dest=0x1cc3600, pNo=0x5b, len=512, type=0
ReadPage dest=0x1cc3800, pNo=0x5c, len=512, type=0
ReadPage dest=0x1cc3a00, pNo=0x5d, len=512, type=0
ReadPage dest=0x1cc3c00, pNo=0x5e, len=512, type=0
ReadPage dest=0x1cc3e00, pNo=0x5f, len=512, type=0
ReadPage dest=0x1cc4000, pNo=0x60, len=512, type=0
ReadPage dest=0x1cc4200, pNo=0x61, len=512, type=0
ReadPage dest=0x1cc4400, pNo=0x62, len=512, type=0
ReadPage dest=0x1cc4600, pNo=0x63, len=512, type=0
ReadPage dest=0x1cc4800, pNo=0x64, len=512, type=0
ReadPage dest=0x1cc4a00, pNo=0x65, len=512, type=0
ReadPage dest=0x1cc4c00, pNo=0x66, len=512, type=0
ReadPage dest=0x1cc4e00, pNo=0x67, len=512, type=0
ReadPage dest=0x1cc5000, pNo=0x68, len=512, type=0
ReadPage dest=0x1cc5200, pNo=0x69, len=512, type=0
ReadPage dest=0x1cc5400, pNo=0x6a, len=260, type=0
ExtBootloader loading is done, last linkAddr=1, len=0
Verifying ExtBootloader...

~~~ Welcome to MTK Bootloader V005 (since 2005) ~~~
**===================================================**

Find and load image list block...
Procressing block 0x4
ReadPage dest=0x40001000, pNo=0x80, len=512, type=-1
ReadPage dest=0x40001000, pNo=0x9f, len=512, type=-1
Procressing block 0x5
ReadPage dest=0x40001000, pNo=0xa0, len=512, type=-1
Unrecognized block, skip it
Main=0x4, Tmp=0x0, Fota=0x0, Bak=0x0
ReadPage dest=0x40001000, pNo=0x82, len=512, type=
-1

Number of image segments = 4
..[0] Image size = 352Bytes, start addr. =0x428
..[1] Image size = 2377816Bytes, start addr. =0x0
..[2] Image size = 8659212Bytes, start addr. =0x248858
..[3] Image size = 7743676Bytes, start addr. =-0xe000000
ReadPage dest=0x40001000, pNo=0x83, len=512, type=-1
GetFeatureCombination()
g_mauiFeatureCombination=0x8, bl combination=1342219160
FactoryProcedure BL_FC=0x8 MAUI_FC=0x8
Start loading image...
................................................................................................................
...........................................................................................................................
.......................................................NFB image index: 1...

Bye bye bootloader, jump to=0x0
Bootloader total duration = 0 ms

SD_Cmd8 fail
SD_Cmd8 fail
SD_Cmd8 fail
S
D_Cmd8 fail

cold reset
L1usim_Reset

噜
12, type=0
ReadPage dest=0x1cc2e00, pNo=0x57, len=512, type=0
ReadPage dest=0x1cc3000, pNo=0x58, len=512, type=0
ReadPage dest=0x1cc3200, pNo=0x59, len=512, type=0
ReadPage dest=0x1cc3400, pNo=0x5a, len=512, type=0
ReadPage dest=0x1cc3600, pNo=0x5b, len=512, type=0
ReadPage dest=0x1cc3800, pNo=0x5c, len=512, type=0
ReadPage dest=0x1cc3a00, pNo=0x5d, len=512, type=0
ReadPage dest=0x1cc3c00, pNo=0x5e, len=512, type=0
ReadPage dest=0x1cc3e00, pNo=0x5f, len=512, type=0
ReadPage dest=0x1cc4000, pNo=0x60, len=512, type=0
ReadPage dest=0x1cc4200, pNo=0x61, len=512, type=0
ReadPage dest=0x1cc4400, pNo=0x62, len=512, type=0
ReadPage dest=0x1cc4600, pNo=0x63, len=512, type=0
ReadPage dest=0x1cc4800, pNo=0x64, len=512, type=0
ReadPage dest=0x1cc4a00, pNo=0x65, len=512, type=0
ReadPage dest=0x1cc4c00, pNo=0x66, len=512, type=0
ReadPage dest=0x1cc4e00, pNo=0x67, len=512, type=0
ReadPage dest=0x1cc5000, pNo=0x68, len=512, type=0
ReadPage dest=0x1cc5200, pNo=0x69, len=512, type=0
ReadPage dest=0x1cc5400, pNo=0x6a, len=260, type=0
ExtBootloader loading is done, last linkAddr=1, len=0
Verifying ExtBootloader...

~~~ Welcome to MTK Bootloader V005 (since 2005) ~~~
**===================================================**

Find and load image list block...
Procressing block 0x4
ReadPage dest=0x40001000, pNo=0x80, len=512, type=-1
ReadPage dest=0x40001000, pNo=0x9f, len=512, type=-1
Procressing block 0x5
ReadPage dest=0x40001000, pNo=0xa0, len=512, type=-1
Unrecognized block, skip it
Main=0x4, Tmp=0x0, Fota=0x0, Bak=0x0
ReadPage dest=0x40001000, pNo=0x82, len=512, type=-1

Number of image segments = 4
..[0] Image size = 352Bytes, start addr. =0x428
..[1] Image size = 2377816Bytes, start addr. =0x0
..[2] Image size = 8659212Bytes, start addr. =0x248858
..[3] Image size = 7743676Bytes, start addr. =-0xe000000
ReadPage dest=0x40001000, pNo=0x83, len=512, type=-1
GetFeatureCombination()
g_mauiFeatureCombination=0x8, bl combination=1342219160
FactoryProcedure BL_FC=0x8 MAUI_FC=0x8
Start loading
image...
..................................................................................................................................
..................................................................................................................................
..............................NFB image index: 1...

Bye bye bootloader, jump to=0x0
Bootloader total duration = 0 ms

SD_Cmd8 fail
SD_Cmd8 fail
SD_Cmd8 fail
SD_Cmd8 fail

cold reset
L1usim_Reset

噜
pe=0
ReadPage dest=0x1cc3e00, pNo=0x5f, len=512, type=0
ReadPage dest=0x1cc4000, pNo=0x60, len=512, type=0
ReadPage dest=0x1cc4200, pNo=0x61, len=512, type=0
ReadPage dest=0x1cc4400, pNo=0x62, len=512, type=0
ReadPage dest=0x1cc4600, pNo=0x63, len=512, type=0
ReadPage dest=0x1cc4800, pNo=0x64, len=512, type=0
ReadPage dest=0x1cc4a00, pNo=0x65, len=512, type=0
ReadPage dest=0x1cc4c00, pNo=0x66, len=512, type=0
ReadPage dest=0x1cc4e00, pNo=0x67, len=512, type=0
ReadPage dest=0x1cc5000, pNo=0x68, len=512, type=0
ReadPage dest=0x1cc5200, pNo=0x69, len=512, type=0
ReadPage dest=0x1cc5400, pNo=0x6a, len=260, type=0
ExtBootloader loading is done, last linkAddr=1, len=0
Verifying ExtBootloader...

~~~ Welcome to MTK Bootloader V005 (since 2005) ~~~
**===================================================**

Find and load image list block...
Procressing block 0x4
ReadPage dest=0x40001000, pNo=0x80, len=512, type=-1
ReadPage dest=0x40001000, pNo=0x9f, len=512, type=-1
Procressing block 0x5
ReadPage dest=0x40001000, pNo=0xa0, len=512, type=-1
Unrecognized block, skip it
Main=0x4, Tmp=0x0, Fota=0x0, Bak=0x0
ReadPage dest=0x40001000, pNo=0x82, len=512, type=-1

Number of image segments = 4
..[0] Image size = 352Bytes, start addr. =0x428
..[1] Image size = 2377816Bytes, start addr. =0x0
..[2] Image size = 8659212Bytes, start addr. =0x248858
..[3] Image size = 7743676Bytes, start addr. =-0xe000000
ReadPage dest=0x40001000, pNo=0x83, len=512, type=-1
GetFeatureCombination()
g_mauiFeatureCombination=0x8, bl combination=1342219160
FactoryProcedure BL_FC=0x8 MAUI_FC=0x8
Start loading image...
..............................
..................................................................................................................................
........................................................................................................................
..........NFB image index: 1...

Bye bye bootloader, jump to=0x0
Bootloader total duration = 0 ms

SD_Cmd8 fail
SD_Cmd8 fail
SD_Cmd8 fail
SD_Cmd8 fail

cold reset
L1usim_Reset

噜

wangjinde · 发表于 2009-9-16 21:53:52

[em05][em05][em05][em05]

chenkarl · 发表于 2009-11-2 17:08:07

okokok

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wostang wostang 当前离线积分 4923 IP卡狗仔卡	发表于 2009-7-30 13:08:14 \| 显示全部楼层提示: 作者被禁止或删除内容自动屏蔽
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wostang wostang 当前离线积分 4923 IP卡狗仔卡	发表于 2009-8-3 10:39:21 \| 显示全部楼层提示: 作者被禁止或删除内容自动屏蔽
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	点评回复使用道具举报显身卡

[讨论] 关于MT6235的 地址线问题

[讨论] 关于MT6235的地址线问题