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CCSTUDIO: Program not running standalone after flashing via CCS (CC3235SF)

Muhammad Afiq Zunnur Md Rahim
Prodigy 55 points
Part Number: CCSTUDIO
Other Parts Discussed in Thread: CC3235SF, UNIFLASH

Tool/software:

Hi,

I am working with a custom PCB using the CC3235SF and I’ve already successfully flashed my firmware using CCS (not UniFlash). After flashing:

  • I disconnected SOP1 and also unplugged the USB.

  • Then I reset the board and powered it externally.

  • I waited for 30 minutes, but I still don’t see any output on HiveMQ.

The code should publish this message when it starts:

MQTTpublish("Ready to receive... (STA/AP)");

Then I'm supposed to send either "AP" or "STA", and after that, I should receive MQTT messages with GNSS info, battery level, time, etc.

Everything works fine when I run it via CCS Debug mode — I can see the MQTT messages appearing as expected. But after flashing and running standalone, I get nothing on HiveMQ .Is there anything else I need to configure to make the CC3235SF run the code standalone from flash?