Readout ARM STM32F078CB Microprocessor Program from its flash memory, the protective system of stm32f078cb mcu has been cracked and firmware will be recovered from microcontroller stm32f078r8 memory;

The internal voltage reference (VREFINT) provides a stable (bandgap) voltage output for the ADC and comparators. VREFINT is internally connected to the ADC_IN17 input channel in order to replicate arm processor stm32f071v8 flash program. The precise voltage of VREFINT is individually measured for each part by ST during production test and stored in the system memory area. It is accessible in read-only mode.

This embedded hardware feature allows the application to measure the VBAT battery voltage using the internal ADC channel ADC_IN18. As the VBAT voltage may be higher than VDDA, and thus outside the ADC input range in the process of duplicating stm32f071r8 microprocessor flash firmware, the VBAT pin is internally connected to a bridge divider by 2. As a consequence, the converted digital value is half the VBAT voltage.

The two 12-bit buffered DAC channels can be used to convert digital signals into analog voltage signal outputs. The chosen design structure is composed of integrated resistor strings and an amplifier in non-inverting configuration.

This digital Interface supports the following features:

• 8-bit or 12-bit monotonic output
  • Left or right data alignment in 12-bit mode
  • Synchronized update capability
  • Noise-wave generation
  • Triangular-wave generation
  • Dual DAC channel independent or simultaneous conversions
  • DMA capability for each channel
  • External triggers for conversion

Six DAC trigger inputs are used in the device. The DAC is triggered through the timer trigger outputs and the DAC interface is generating its own DMA requests.