128 kb microcontroller. exactly what is needed.
Questions.
What voltage do you apply? Pin Vin input must be connected to the positive voltage that is supplied to the synthesizer.
In the system menu, the option "Low Voltage" is values set?
What is the capacitance of the capacitor after the stabilizer 3.3v microfarad?
https://drive.google.com/open?id=1r9esJ1...v7Qel_qoaR
try this firmware for today's date synthesizer_stm32f100cbt6b_microb_v4_19022019.bin
Questions.
What voltage do you apply? Pin Vin input must be connected to the positive voltage that is supplied to the synthesizer.
In the system menu, the option "Low Voltage" is values set?
What is the capacitance of the capacitor after the stabilizer 3.3v microfarad?
https://drive.google.com/open?id=1r9esJ1...v7Qel_qoaR
try this firmware for today's date synthesizer_stm32f100cbt6b_microb_v4_19022019.bin