My 4th year project :the S12X microcontroller

this was my 4th year project in INSA in the DGEI department .this project was done with the collaboration of freescale and the Lesia laboratory .it's about developping an application of the new freescale microcontroller S12X in order to put it in the microcontroller book to make easier using this new component for Freescale's client in the future . My project is to communicate two interface Kit( MC33880 and MC 33993 ) through the S12X using SPI module ( Serial peripheral interface). theMC33880 control the LED card . the MC33993 is charged to scrutinize the switch state.

once the program is charged in the S12X microcontroller . the S12x will send a data to the MC 33993 , requesting the switch state . then the MC33993 will send back the switch state data using SPI module . once the data is recieved by S12x . the microcontroller will send it to the MC33880 by another SPI module in order to control the LED board .therfore we can display the results on the LED .

the S12X is based on the HC12 core with the Xgate module . the Xgate is another microprocessor enhanced in the S12x . this parallel processing module offloads the CPU by providing high speed data processing and transfer between peripheral modules, RAM and I/O ports . the S12XD family is designed to deliver 2 to 5 times the performance of a 25 MHz HCS12 .

for more information click on this link http://www.etud.insa-toulouse.fr/~cal_cham/S12x_project