TMS570LC4357: 通过仿真器XDS100 V3/SO下载程序问题

bo song

Prodigy 70 points

Part Number: TMS570LC4357

王工：

您好，通过XDS100仿真器下载TMS570LC4357的程序，下载完成后重新上电，CPU ERROR灯点亮，程序正常运行。通过查看

ESM寄存器esmREG->SR1[1]对应的值是8。查看手册，可能是ECC问题。

通过J-Link仿真器下载，CPU ERROR不亮，未报错这个错误。

请问为什么出现这种情况，或者使用xds仿真器需要如何配置？

over 3 years ago

0 QJ Wang over 3 years ago

TI__Guru**** 197936 points

Hi Bo,

Under certain circumstances Cortex-R4/R5 can perform SPECULATIVE Instruction prefetch and SPECULATIVE data prefetch beyond the address ranges defined by the application image.

So the ECC values for all of the Flash memory space (Flash banks 0 through 6) must be programmed into the Flash before the program/data can be read. This can be done by generating the correct values of the ECC for the whole flash using linker cmd script.

https://software-dl.ti.com/hercules/hercules_docs/latest/hercules/How_to_Guides/index.html

0 QJ Wang over 3 years ago in reply to QJ Wang

TI__Guru**** 197936 points

Please see my example of ECC generation using linker cmd script:

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/908/HL_5F00_sys_5F00_link_5F00_ecc.cmd

0 bo song over 3 years ago in reply to QJ Wang

Prodigy 70 points

王工：

我按照您提供的例程结合您提供的网址说明，生成程序下载后，程序不能正常执行。再就是我通CCS下载程序，CCS提供自动生成的ECC功能，为什么还有报错呢？

0 QJ Wang over 3 years ago in reply to bo song

TI__Guru**** 197936 points

I am sorry that I forgot to mention that the ECC generation should be turned on.

CCS project property --> Build --> ARM Linker --> Advance Options --> Linker Output

In the Linker Output panel, select "on" for "Control whether ECC generation is on or off"

Arm-based microcontrollers

Arm-based microcontrollers forum

TMS570LC4357: 通过仿真器XDS100 V3/SO下载程序问题