I am an MSc student in Software Engineering at the University of York. Recently I had the chance to do my final year project with Rapita and I thought this would be a good way to tell people about it.

At Rapita, our main interest in writing to output ports of microcontrollers is to provide an efficient means of measuring code execution times or code coverage (via our RapiTime or RapiCover tools – both part of RVS). Typically, we’d have some way of logging the values written to the output port, for example the RTBx or a logic analyzer. How do you set up an MPC5xx IO port to collect data?

The STM32 F4 Discovery board is currently our board of choice for demonstrations and training at Rapita Systems. Here I will explain why we chose it and demonstrate how to set the STM32 F4 Discovery up as an output port without using ST libraries.

Christmas came early at Rapita this year with the unboxing of the new RTBx 2220 datalogger.