Copy Microchip PIC16F917 Locked MCU Flash Code

Copy Microchip PIC16F917 Locked MCU Flash Code from its encrypted flash memory, break off protection over microcontroller pic16f917 fuse bit and cloning electronic board gerber file;

The High-Frequency Internal Oscillator (HFINTOSC) is a factory calibrated 8 MHz internal clock source. The frequency of the HFINTOSC can be altered approximately ±12% via software using the OSCTUNE register (Register 3-1).

The output of the HFINTOSC connects to a postscaler and multiplexer (see Figure 3-1). One of seven frequencies can be selected via software using the IRCF bits (see Section 3.4.4 “Frequency Select Bits (IRCF)”).

The HFINTOSC is enabled by selecting any frequency between 8 MHz and 125 kHz (IRCF ¹ 000) as the system clock source (SCS = 1), or when Two-Speed Start-up is enabled (IESO = 1 and IRCF ¹ 000) when reverse engineering the smt pcb with pic16f917 on it. The HF Internal Oscillator (HTS) bit (OSCCON<2>) indicates whether the HFINTOSC is stable or not.

The HFINTOSC is factory calibrated but can be adjusted in software by writing to the OSCTUNE register (Register 3-1).

The OSCTUNE register has a tuning range of ±12%. The default value of the OSCTUNE register is ‘0’. The value is a 5-bit two’s complement number. Due to process variation, the monotonicity and frequency step cannot be specified.