Hi Mario!
Thank you for your answer.
The first thing i'm trying to do is to read the NVD's memory through the UART and QN902X STUDIO. I'm not achieving to do that because it can't stablish a communication.
I think that there is no problems whith the connection command because i can comunicate with the demo board qn9020_MINIDK.
I don't have an external flash, do you think that it would be a problem?
Regards,
Osvaldo
Enviado do Email do Windows
De: mario_castaneda
Enviado: segunda-feira, 15 de julho de 2019 14:14
Para: Osvaldo Nagy
NXP Community
Re: The QN9022 isn't communicating whith QN902X STUDIO
reply from Mario Ignacio Castaneda Lopez in Wireless Connectivity - View the full discussion
Hi Oswaldo,
There are two modes in the bootloader (ISP Mode and Load Mode). It looks for a connection command from UART and SPI interface for a while to determine which mode to go.
https://community.nxp.com/servlet/JiveServlet/downloadImage/2-1178107-272378/pastedImage_1.png
BL does not find Connection Command in 200ms. If no connection command found from UART and SPI interface, the bootloader enters into Load Mode.
Is it possible that you could capture the commands in this range? 200ms.
Do you have an external flash? don't you?
Regards,
Mario
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