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While IAR EWAVR and Microchip Studio are available for use with Windows ® OS only, MPLAB X and the MPLAB XC8 compiler is available for Linux ® and macOS ®, as well as Windows systems.
#Mplab xc8 user guide professional
The commercial version, called MPLAB XC8 PRO, offers all the optimizations you’d expect from a professional grade compiler.
#Mplab xc8 user guide free
The MPLAB XC8 compiler is available in a free version, which offers a subset of optimization options. It is integrated into the MPLAB X IDE and was added to the v release of Microchip Studio. The newest compiler to support AVR MCUs is the MPLAB XC8 compiler, which is a variant of the GCC compiler. In other words, you have more horsepower available, even in low-voltage applications, with a lower active mode power consumption. It can now run at 24 MHz, regardless of the supply voltage. The core logic runs from an internal regulated supply, which means that the maximum speed of the core is not limited by the external supply voltage. This eliminates the need for expensive level converters.ĪVR Dx MCUs offer a significant improvement over past AVR MCUs. The AVR DB family has built-in op amps and multi-voltage I/O, which means that selected pins can be run from a separate voltage domain. The AVR DA family features the latest version of the Peripheral Touch Controller (PTC) module used to interface capacitive sensors for use in touch-enabled user interfaces. There are currently two families of AVR Dx MCUs. This difference is most clearly seen in the peripherals and how they are better organized in the memory map.
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So, it is a bit more sophisticated than the older megaAVR MCUs. The AVR Dx is the newest generation of AVR MCUs and it is similar to the latest tinyAVR 1-series, like the ATtiny817, which again is similar to the AVR XMEGA devices. The most well-known AVR MCU is perhaps the ATmega328, which is the MCU used on the Arduino ® UNO kit. To keep this post concise, I’ll focus on just the ports for the AVR Dx MCU families.ĪVR Dx: Is this a tinyAVR ®, megaAVR or AVR XMEGA ® MCU?
#Mplab xc8 user guide code
With this support for new devices and a new compiler, I could not help wondering how much memory the standard FreeRTOS demo examples consume on one of these new MCUs and how much the choice of compiler actually influences the code size. While these devices are still available products, AVR MCUs have evolved significantly - and who doesn’t want to use the latest generation of a product? Why is this great news? Well, it’s because the ATmega323 and ATmega128 MCUs that are supported in earlier versions of FreeRTOS are older devices. These ports not only cover the megaAVR ® 0-series of MCUs and the brand-new AVR Dx devices, but also the three main compilers for AVR MCUs: MPLAB XC8 compiler, AVR-GCC, and IAR Embedded Workbench ® for AVR. It was exciting to see two new AVR ® microcontroller (MCU) ports in FreeRTOS ™ version 10.3.1, or rather six new ports.