Links in blue are versions that came out when you still had valid support. On:, Under the 'Maintenance Status and Previous Versions' section, paste your Product Serial Number (PSN) or License Code (LIC) into the bluish box and press enter - a list appears of all the versions of your product. Downloading older versions of these products requires a valid product license. But need a license to unlock the full features. To add to that, each Product has different editions, for The MDK development tools, (sometimes also referred to as MDK5 or MDK-ARM) for ARM devices you have 3 editions: The C51 development tools for 8051 devices have 3 editions: The C166 development tools for C166 devices have 3 editions: These products can be downloaded from. So it is not enough to say you want uVision, you have to say what architecture you want. See: We have had major updates to the IDE, so we add a number at the end for each major change.

We call our IDE µVision, also written as uVision. See: We have a different compiler for each architecture, but we use the same front-end aka GUI aka Integrated Development Environment (IDE) to call the compilers. It was purchased by ARM, and now the software product line is called ArmKeil.Įven after the merger, we still support four different hardware architectures: ARM, C166, 8051, and 251. Let's try to address them here since this thread is so popular. Ron Wedge There can be some confusion in Keil product names. It provides more features than any other 8051 C compiler. Keil C51 V9.53 uVision5 The Keil C51 C Compiler for the 8051 microcontroller is the most popular 8051 C compiler in the world. Startup Keil uVision from the Start menu in Windows. The nRFgo Software Development Kit (SDK) with the Keil C51 C compiler provides a flexible.

Keil Uvision 4 Full Crack