We have an old product which used MSP430BT5190 and Silicon Labs USB to UART chip CP2102. We used TI's BSLDEMO to upgrade firmware and it always worked fine. We recently re-spin the board. We have issues with Silicon Labs CP2102 chip on Windows 10. BSLDEMO could not control RTS/DTR pins anymore. We replaced CP2102 with other company's USB to UART chip. Now the BSLDEMO could control RTS/DTR pins, but MSP430BT5190 still does not go to the bootloader mode. We checked the documents: MSP430™ Flash Devices Bootloader (BSL) and MSP430BT5190 Device Erratasheet and it seems we are not able to find the requirements of the MSP430BT5190 BSL entry sequence & exact timing. Could you please help?
Thanks in advance,