blhost cannot connect MIMXRT1064 EVK

[martinzhang]

Hi,

I configure the boot mode in MIMIXRT1064 EVK as: 0x01, and use following command to connect MCU via COM1 in PC side:

blhost -p COM1 -- get-property 10

got response:

Error: Initial ping failure: No response received for ping command.

I have confirmed the boot mode in register:

BootModeReg.png

 and COM1 is working:

COM1_OK.png

Also, according the schematic of the MIMXRT1064 EVK, the pins of UART1 is same with the boot loader

UART1_Setting.png

Someone can tell me where I missed?

Best Regards,

Martin

[Yuri · Accepted solution]

@martinzhang 
Hello,

   The blhost application is a command-line utility used on the host computer to initiate communication and inject commands to the MCU bootloader. The MCU bootloader is not boot ROM , it should be preloaded first, using the sdphost. Please refer to app note AN12238 (i.MX RT1050 Flashloader use cases) for more details.

https://www.nxp.com/docs/en/nxp/application-notes/AN12238.pdf

Regards,
Yuri.