By Dogan Ibrahim
This e-book is perfect for the engineer, technician, hobbyist and scholar who've wisdom of the fundamental rules of PIC microcontrollers and wish to advance extra complicated purposes utilizing the 18F series.
The structure of the PIC 18FXXX sequence in addition to ordinary oscillator, reset, reminiscence, and input-output circuits is totally certain. After giving an creation to programming in C, the e-book describes the undertaking improvement cycle in complete, giving information of the method of modifying, compilation, mistakes dealing with, programming and using particular improvement instruments. the majority of the booklet provides complete information of attempted and verified hands-on tasks, corresponding to the 12C BUS, USB BUS, CAN BUS, SPI BUS and real-time working systems.
- A transparent advent to the PIC 18FXXX microcontroller's architecture
- 20 initiatives, together with constructing instant and sensor community purposes, utilizing I2C BUS, USB BUS, CAN BUS and the SPI BUS, which offer the block and circuit diagram, software description in PDL, application directory and application description
- Numerous examples of utilizing developmental instruments: simulators, in-circuit debuggers (especially ICD2) and emulators
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Additional info for Advanced PIC Microcontroller Projects in C: From USB to RTOS with the PIC 18F Series
3 The Configuration Registers PIC18F452 microcontrollers have a set of configuration registers (PIC16-series microcontrollers had only one configuration register). Configuration registers are programmed during the programming of the flash program memory by the programming device. 2. 3. Some of the more important configuration registers are described in this section in detail. CONFIG1H The CONFIG1H configuration register is at address 300001H and is used to select the microcontroller clock sources.
10: Operation of PIC18LF452 at different voltages Stack full reset Stack underflow reset Two types of resets are commonly used: power-on reset and external reset using the MCLR pin. Power-on Reset The power-on reset is generated automatically when power supply voltage is applied to the chip. The MCLR pin should be tied to the supply voltage directly or, preferably, through a 10K resistor. 11 shows a typical reset circuit. 12. In some applications the microcontroller may have to be reset externally by pressing a button.
A Phase Locked Loop (PLL) circuit is provided that can be enabled to multiply the clock frequency by 4. 20: 2MHz clock in RCIO mode internal operation frequency will be multiplied to 40MHz. The PLL mode is enabled when the oscillator configuration bits are programmed for HS mode. Internal Clock Some devices in the PIC18F family have internal clock modes (although the PIC18F452 does not). In this mode, OSC1 and OSC2 pins are available for general purpose I/O (RA6 and RA7) or as FOSC/4 and RA7. An internal clock can be from 31KHz to 8MHz and is selected by registers OSCCON and OSCTUNE.