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Programming of QN9021 via TTL-232RG-VSW3V3-WE?

Question asked by Marshall Peterson on Oct 19, 2016
Latest reply on Nov 14, 2016 by Mario Ignacio Castaneda Lopez

Hello, I created a program using the QN902x developers kit, and I am trying to actually program my QN9021 chip via the UART connections.

 

i have the TTL-232RG-VSW3V3-WE soldered directly onto the correct pins for UART1 connection (as there is not enough pins for UART0 on the 9021) and I am trying to flash my program via the BIN file that I created using the ISP tool provided, but when I try to flash it says "please reset the device to initiate flash." So, I reset the device and it never tries to flash.

 

Am I doing something incorrect? I have double checked my UART1 connections and they seem to be on the proper pins.

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