Re: i.MX RT1064 - PEmicro Connection Assistant Error Hi, This is a follow up to a previously raised query. The link has been attached to the previous query, and the link has the required details which was requested. Kindly reply and help us address the issue at the earliest. Thanks and Regards Subhasri https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/i-MX-RT1064-PEmicro-Connection-Assistant-Error-and-Boot/m-p/2412530#M37152 i.MXRT 106x Re: i.MX RT1064 - PEmicro Connection Assistant Error Hi @Subhasri_S,
On the measurements you shared, are the pull-up voltages powered before POR_B is released?
In your application, is there any point at which the MCU enters a low-power state?
Does any fault or error occur before the issue appears?
Best Regards, Pablo Re: i.MX RT1064 - PEmicro Connection Assistant Error Hi @Pablo_Ramos , thank you for your response. The pull-up voltages are not powered before POR_B is released. Signals of the pull -up wrt. POR_B behavior is attached below. There is no point in our application where MCU Enters low power mode. Also, no fault or error occurs before this issue. I would also like to know whether there is any way to recover the board through software when this issue occurs. Thanks and Regards Subhasri Re: i.MX RT1064 - PEmicro Connection Assistant Error Hi
When this behavior occurs, you mentioned that you are unable to flash or debug the device. If you try to attach a debugger, are you able to do so?
If you are able to attach the debugger, what is the last instruction that was executed?
One possible explanation is described in the following knowledge base article:
Knowledge Base: RT board recovery for debugger connect issues
"When the flash contains an abnormal application (for example, accessing non-existent memory, memory corruption, clock misconfiguration, etc.), the board may enter an unknown state, preventing the debugger from taking control of the core. However, when the device is placed in Serial Downloader mode, the core is forced into a known state, allowing the debugger to take control.
Therefore, when encountering debugger connection issues on an RT board, try performing a mass erase of the external flash while the device is in Serial Downloader mode. This should restore normal debugger operation."
You mentioned that this issue occurs on both a custom board and the EVK. Does the issue also occur when running a standard SDK example?
For the EVK where this behavior is observed, have any hardware modifications been made?
Best Regards,
Pablo Re: i.MX RT1064 - PEmicro Connection Assistant Error Hello @Pablo_Ramos This is just a gentle follow up on the same. Thank you Regards Subhasri
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