The DSO-TC2 is built around an (Arm Cortex-M3, 256 KB flash, 48 KB RAM) – Correction: Later teardowns show STM32F407VET6 (Cortex-M4 with FPU). We assume the M4 variant for DSP used in oscilloscope triggering. An external 25Q16 (2 MB SPI flash) stores the UI graphics, fonts, and calibration data.
Patched the branch instruction to force 1x always, reflashed via SWD. Device operated correctly.
Press and hold the designated boot keys (usually the button or a combination of the Power and Menu buttons, depending on your specific hardware batch). Connect the USB-C cable to your PC while holding the keys.
This comprehensive guide covers everything you need to know about the DSO-TC2 firmware, from official upgrade steps to troubleshooting common flashing issues. Why Upgrade Your FNIRSI DSO-TC2 Firmware?
Before starting the flashing process, gather the following tools to avoid bricking your device:
Once the progress bar reaches 100%, a "Success" or "Update Complete" dialog box will pop up. Step 5: Reboot and Recalibrate
Drag and drop the firmware file directly into that drive.
Enhanced algorithms for identifying transistors, MOSFETs, diodes, and resistors.
The SPI flash is not protected either. Using a Bus Pirate or dedicated programmer:
: Often caused by a corrupted flash during an update or using the wrong version (e.g., trying to load TC3 firmware onto a TC2).