.phy文件的地址超出全局地址

[liukaifreedom]

芯片MC9S12G128

S224027FA0.............................................................

S224027FC0.............................................................

S21B027FE0............................................................

S224288000..............................................................

S224288020..............................................................

S224288040..............................................................

S224288060................................................................

[ZhangJennie]

hello liu kai,

.phy file is used in P&E programming tool while Freescale Codewarrior use .s19 instead. Codewarrior can also generate .phy file which is for user's convenience to use it directly on P&E programming tools.

.phy file use physical address which is different as .s19 paged address. in burner.bbl, we can see the corresponding address relationship between these two format. please take a look at your burner.bbl file in your project folder.

for example, see burner.bbl:  See my comments:

origin = 0x088000                 /* s19 file address */

destination = 0x020000        /* corresponding phy file address  */

len = 0x4000

SENDBYTE 1 "%ABS_FILE%"

......

origin = 0x0A8000            /* s19 file address */

destination = 0x028000     /* corresponding phy file address  */

len = 0x4000

SENDBYTE 1 "%ABS_FILE%"

does this clarify the issue?

Have a great day,
Zhang Jun

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[liukaifreedom]

ZhangJennie:

你好，非常感谢你的回复！

在回复中，你谈到的在.bbl文件关于物理地址和逻辑地址的对应关系，分别对应于.phy文件和 .S19文件的下载地址。我还有一个问题不是很明白，想请教一下。

问题是：我们使用飞思卡尔的CodeWarrior编译的.phy文件的地址应该对应的物理地址，对应的全局地址范围应该是0---0x3FFFF,但是我们查看.phy文件，却发现地址到0x027FE0，后面接着的地址就是0x288000开始增加的，我们下载到开发板后，查看Ture-Time调试工具的memory时，发现.phy文件0x288000之后地址的数据和memory中0xa8000之后地址的数据(即对应0x28000地址)是相同的。所以比较困惑，不知是什么原因造成的？

希望得到你的帮助，谢谢！

[ZhangJennie]

phy 文件用的是physical address. P&E公司的开发工具基本上都用phy格式的地址。

phy用的地址和你所说的global memory address 还是不同的。

用phy文件， 地址参考bbl文件里的对应关系就行了。

does this answer your question? please click the Correct Answer button. Thank you!

Have a great day,
Zhang Jun

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[liukaifreedom]

ZhangJennie： 您好！不好意思，下班时间还打扰您。 有一个关于flash读的问题，请教你一下！根据mc9s12的数据手册，每次可以读四个word数据，但对于这四个数据，我怎么读取，怎么与FCCOB寄存器关联（读的数据用于校验写入的数据是否与下载文件的数据一致。）？

[ZhangJennie]

this is  a new question about flash reading. can you please post it in MCU 16bit block, better in English. thus more engineers can read it. thanks!
Have a great day,
Zhang Jun

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[liukaifreedom]

你好！公司要我写个Bootloader程序，更新程序需要用到phy文件的物理地址，我的主管让我搞清楚为什么会出现0x288000这个地址，而在bbl文件中，这个地址是超出范围的。

[ZhangJennie]

so did I answer your original question so far?

Have a great day,
Zhang Jun

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