STMicro Processor STM32F103C8 Flash Memory Program Copying is a process to crack secured arm microcontroller stm32f103c8 tamper resistance system and recover locked firmware from MCU STM32F103C8;
The current consumption of the on-chip peripherals is given in Table 18. The process of extracting microcontroller firmware is placed under the following conditions:
- l all I/O pins are in input mode with a static value at VDD or VSS (no load)
- l all peripherals are disabled unless otherwise mentioned
- l the given value is calculated by measuring the current consumption
- – with all peripherals clocked off
- – with only one peripheral clocked on
- l ambient operating temperature and VDD supply voltage conditions summarized
External clock source characteristics includes below points:
In a given sampling window, either three or six samples of the input signal are taken to determine the validity of the signal. This is determined by the value written to GPxQSELn register to copy stmicro stm32f103rb mcu flash content.
Case 1:
Qualification using three samples
Sampling window width = (SYSCLKOUT cycle × 2 × QUALPRD) × 2, if QUALPRD ≠ 0 Sampling window width = (SYSCLKOUT cycle) × 2, if QUALPRD = 0
Case 2:
Qualification using six samples Sampling window width = (SYSCLKOUT cycle × 2 × QUALPRD) × 5, if QUALPRD ≠ 0 Sampling window width = (SYSCLKOUT cycle) × 5, if QUALPRD = 0
