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Part Number: TMS320DM8168
1.When I connect the DM8168 DSP core with a JTAG emulator,The following information will be warned,
2.But when I click OK,i can read the data on the DSP core memory register further
3.So Device core was hung,what does it mean? What is the state of the DSP core?
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In reply to Pavel Botev:
Sorry,Update the working conditions of DM8168:
1.DM8168 run normally when power up, we can access 4 cores(A8 DSP VPSS M3) of DM8168 by software;
2.After a period of time(may be 2 days or later), the DSP program is abnormal, we can't access DSP but another cores is OK
3.We try to use JTAG to debug DSP by CCS online, but it's not response at all. a pop-up dialog below:Device core was hung
5.But when I click OK,i can read the data on the DSP core memory register further
So,What is mean that Device core was hung?Why we can also read the information on the DSP at this time?
In reply to Sean wang:
So,According to the failure,Is it a problem caused by a DSP software application?Because we can still read the DSP core data when the DSP core has a failure
And the register address is in the loop below:
Sean wangAccording to the failure,Is it a problem caused by a DSP software application?
Sean wangBecause we can still read the DSP core data when the DSP core has a failure
Yes, this is normal and expected. The error was recovered but the code integrity is unknown.
Sean wangAnd the register address is in the loop below:
Yes, these addresses belongs to C674x DSP memory map.
You should debug your DSP application. You can refer to the below pointers to check if these will be in help:
DM816x Silicon errata, Advisory 2.1.34 — DEMMU May Hang When Used in Table-Walk Mode
DM816x datasheet, 3.3 DSP Subsystem, 3.9.5 C674x Memory Map
DM816x TRM, 1.3 C674x DSP Subsystem, 1.5.5 C674x Memory Map
TMS320C674x DSP Megamodule Reference Guide:www.ti.com/.../sprufk5a.pdf
TMS320C674x DSP CPU and Instruction Set Reference Guide:www.ti.com/.../sprufe8b.pdf
TMS320C674x DSP Cache User's Guide:www.ti.com/.../sprug82a.pdf
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