Replicating Encrypted MCU PIC18F24K22 Locked Flash Program from cracked microcontroller pic18f24k22 memory and copy it to new MCU pic18f24k22 for functionality recovery.
The OSCCON, OSCCON2 and OSCTUNE registers (Register 2-1 to Register 2-3) control several aspects of the device clock’s operation, both in full-power operation and in power-managed modes to readout pic18f45k20 microcontroller flash memory.
- Main System Clock Selection (SCS)
- Primary Oscillator Circuit Shutdown (PRISD)
- Secondary Oscillator Enable (SOSCGO)
- Primary Clock Frequency 4x multiplier (PLLEN)
- Internal Frequency selection bits (IRCF, INTSRC)
- Clock Status bits (OSTS, HFIOFS, MFIOFS, LFIOFS. SOSCRUN, PLLRDY)
Power management selection (IDLEN)
The System Clock Select bits, SCS<1:0>, select the main clock source. The available clock sources are
- Primary clock defined by the FOSC<3:0> bits of CONFIG1H. The primary clock can be the primary oscillator, an external clock, or the internal oscillator block.
- Secondary clock (secondary oscillator)
Internal oscillator block (HFINTOSC, MFINTOSC and LFINTOSC).
The clock source changes immediately after one or more of the bits is written to, following a brief clock transition interval. The SCS bits are cleared to select the primary clock on all forms of Reset.
