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DM8168 bootup problem
I made an 8168 EVM board according to Spectrum Digital's DM816x Evaluation Module(reversion G), but when power up, the uart2 print nothing, the power sequence goes fine, the board is confugured to boot from SD card(I format the sd card by ti-ezsdk_dm816x-evm_5_03_01_15 tools), and I am sure the configure switch setting is all right, but the uart2 just print nothing....
have any idea?
hope help :~(
You have a big job ahead of you. Debugging a new board can be very difficult. Debugging a board with the DM8168 can be more difficult because it is a complex processor. I will not try to convince you it is an easy job to do.
If you have an TMDXEVM8168 from Spectrum Digital, then you may have a chance to compare point-by-point from one to the other to find out what is wrong. For example, you could see if your SD card will boot on the EVM.
In my opinion, there is no chance to succeed with this without JTAG emulation, which you did not mention. Software on a working Linux processor can be debugged using the UART, but getting the processor working on a new board will require many tests to be run before you reach the proven point of running the Linux OS.
On the TI Wiki Pages, you can search for "board bringup" (no quotes) to find some articles written about bringing up new boards. There may not be one specific to the DM8168, but some of the articles may help guide you through appropriate steps.
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RandyP, thanks for your reply.I am going to use the JTAG to debug the hardware, and one more question, the board I made does not contain the EEPROM whitch hold the board version information, is this OK? would EZSDK linux demo run successfully without the EEPROM?
That is not something that I know an answer for. This new question should be asked on the Linux Forum under Embedded Software.
If you have an EVM, you could try erasing the EEPROM and see if the demo will run successfully.
I have the same problem because I have a new custom board I need to bring it up. The First problem is that it can't read the files from the SD. So I am going to read the articles you mention above to know and have more ideas about the issue.
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