Fidelix FX-RP multiDISPLAY
Programming manual
page 4 of 38
Different chip versions
Two different chips have been used for the FX-RP multiDISPLAY; deliveries before 2017 were made with chips
with 256 kB (STM32F103), and deliveries from January 2017 onwards are made with chips with 768 kB of
memory available for project pages and graphics (STM32F405). This difference is important when selecting the
correct version of the firmware for your FX-RP multiDISPLAY. The “first generation” displays use a processor
with product code STM32F103 and require firmware with version numbers 0.xx or 1.xx. The second generation
displays use a processor with product code STM32F405 and require firmware with version number 2.xx.
You can also recognise the different generation displays by their different programming connector (the red plastic
connector, used during production), capacitor (the part looking like a small button battery, holding time schedule
settings and the clock for 10-50 hours), and tamper switch, or by the PCB version; 1.52 and upwards = 2
nd
generation multiDISPLAY.
multiDISPLAY 1st generation
multiDISPLAY 2nd generation
PCB version < 1.52
PCB version >= 1.52
Processor = STM32F103
Processor = STM32F405
Power supply: 12-26 VDC / 16-26 VAC
Power supply: 12-45 VDC / 16-32 VAC
Changed components
different capacitor and holder
different programming connector for production
different tamper switch
