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Situation: Due to a partially torn CW key jack (ground pins) caused by the coupling of another transceiver, the protection circuit at the key input (implemented with a double TVS diode) and a MCU port on the STM32 were damaged.
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I have following Options:
- Buy a new X6100
- Replace the STM32 MCU chip?
- Replace the entire mainboard with the STM32 (still looking for a source for this).
The challenge is, regardless of whether I replace the chip or receive a replacement board from the factory without firmware, I need to program the baseband firmware for the STM32. For sure, I need the firmware.
Questions:
- Can the STM32 baseband firmware be flashed under all circumstances using the official update process with SD-Card (e.g. the internal bootloader of the STM32 is used)?
- Or is a proprietary bootloader required in the STM32?
- If a proprietary bootloader is required, where can you obtain it and where is the programming interface located on the STM32 mainboard?
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Is this the programming interface?
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Maybe someone here can help or has a contact who can assist with the problem?
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