I have made a small breakout board with the QN9021 SOC (BLE + ARM Cortex M0). I am having trouble flashing the code into this device. Assuming that this device is wired properly and working fine, how do I program it?
None of the cheap OpenOCD debuggers seem to support it! and the commercial (JLink/ULink) are too costly for me.
Can I still use the unsupported debuggers somehow (mayne by manually adding the memory location map)? If so kindly tell me how to do so?
Electronic – NXP QN9021 (ARM Cortex M0) programmer
armcortex-m0programmer
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Best Answer
You can use QBlue ISP programmer using UART communication. You need a USB serial TTL convertor with 3.3V.