I am currently working on a traveler counting system that is based on a PIC18 and I would like for network link reasons to make a serial link (RS232), in fact, a new standard of transport, to put in disposition protocols defined as FTP, DHCP, mDNS, SSH, TCP ... to have the same connection with the same protocols on all public transport (Bus, Tram ..), and it turns out that the TCP/IP stack PIC18 does not have all the protocols required, for this we wish to migrate to an STM32.
I would like to know the compatibilities between the PIC18 and the STM32, in particular:
- Compatibilities between the number of inputs/outputs
- Compatibilities between the serial link, UART, RS232
- What kind of microcontroller and STM32 card used to be the most compatible