[EXT_EP-10819] XDS110: F28069 GPIO pins will unexpectedly switch state before erasing flash Created: 04/May/22  Updated: 23/Sep/22  Resolved: 23/Sep/22

Status: Fixed
Project: Embedded Software & Tools
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Medium
Reporter: TI User Assignee: TI User
Resolution: Fixed Votes: 2
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Product: Debug and Trace
Internal ID: DBGTRC-6607
Forum URL: https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1098254/tms320f28069-continuation-of-unstable-gpio-with-xds110-debugger
https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1060471/tms320f28069-unstable-output-pins-with-xds110-debugger-at-erase-load-check-out-original-thread
Found In Release: CCS_10.4.0
CCS_11.2.0
Fix In Release: CCS_12.1.0
Affected Platform/Device: Generic

 Description   

When using an XDS110 debug probe, some F28069 GPIO pins will unexpectedly switch state for ~30us before erasing flash. This was observed my monitoring the GPIO pins in question.

The below GPIO pins have been reported to exhibit the issue:

GPIO 9
GPIO 10
GPIO 11
GPIO 13
GPIO 14
GPIO 20
GPIO 21
GPIO 23
GPIO 24
GPIO 25

This is not a comprehensive list. Other pins may also exhibit the issue but wasn't monitored.

The issue apparently only happens with the XDS110. In both reported cases, there are no issues when swapping out the XDS110 with an XDS100 or XDS510

The same issue also occurs when running the dbgjtag test via "Test Connection" button in the CCXML file.


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