Hi, I am using dspic33ev256gm106 microchip. But the freertos is not supporting it. I have seen in forums where it is said it is supported. I am not very clear it is supported or not? Can you please suggest if it is supported or not? Do i need to write on my own. Please help.

The standard dsPIC is supported, the dsPICe is not officially supported - but you will find third party code targeting that part in the FreeRTOS Interactive site (http://interactive.freertos.org).

The 'e' parts have a register that cannot be accessed from software, so cannot be saved as part of the task context. If you avoid using that register, then you should not have a problem. If you do use that register, then there is the risk of one task corrupting the context of the other. I don't think the register in question will get used by a C program, but it might get used by optimised math libraries written in assembler.

I'm so happy to see there is a guy using the same chip as I'm. now I have drived all the peripheral (CAN, UART, IC, OC, I2C,ADC etc.), my project works well without a kernel. Now I'm pareparing to transfer my code to FreeRTOS, maybe we can share eachother some experience.