This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Part Number: TMS320F28027
I used UniFlash to try to lock TMS320F28027.
The procedure resulted with some error that I do not remember.
After that, I was not able to unlock the TMS with the same lock key.
Also, I was not able to use the TMS at all, so I have to go through the trouble of replacing it with the new device.
Since I am required to lock the device, please, let me know what is the step by step procedure to successfully lock and unlock TMS320F28027 device by using UniFlash tool.
Can you please let us know how did you try to program the device earlier which locked the device permanently? Please note that the flash operations should never get interrupted else such condition could happen.
If my reply answers your question please click on "This resolved my issue" button located at the bottom of my post.
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to Vivek Singh:
In reply to Vlad Pavlovic:
I tried it again, and instead of LOCK step clicked PASSWORD< and the result is the same. So, I have to unsolder yet another chip and put the new one in. This is not a hobby project, this has to go into production, and the DSP has to be locked.
I tried it further to unlock it and got the following: "
If flash operation is not interrupted then I don't think device is permanently locked. Once you lock the device, you may not be able to connect to it via JTAG and unless you connect it you can not run the unlock sequence. To enable JTAG connection, you need to use the "wait" boot mode. See following note in BOOT ROM document.
My question is what is the proper step by step procedure to lock TMS320F28027 device using UniFlash?
I gave you my procedure, and went into trouble to brick another board of mine, and to resolder the chip again.
Based on your last comment, I have one more question: How to set "wait" mode using UniFlash tool for TMS320F28027 step by step procedure?
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.