Hello I just received an STM32F4 Discovery board. I watched a Youtube tutorial where the guy was showing all the different compilers and the different pricings/limitations for each. My question is: How important is the toolset that one uses to program their ARM or whatever MCU? Most of the commercial ones have a 32kb flash limitation. Although I'm quite aware that that is quite abit of flash , I haven't used ARM before so I don't know if I'll fill that up or not. I'm stuck between two toolsets: CooCox - Free IDE & tools with no limitations IAR systems - Free lite version with 32kb flash limitation Anyone have any advice?