w5500-regsim

Register simulation for the [Wiznet W5500] internet offload chip.

Example

See the [w5500-hl] crate for examples.

Notes

This is in an early alpha state, there are many todos throughout the code. Bug reports will not be accepted until this reaches 0.1.0. Pull requests are always welcome.

At the moment this only does really basic UDP and TCP streams. TCP listeners have not yet been implemented.

It is not possible to fully simulate the W5500 without spending a silly ammount of time on this crate. This is a best-effort implementation to aid in development of application code.

Not-implemented

• MR (Mode Register)
  • Wake on LAN
  • Ping block
  • PPPoE mode
  • Force ARP
• INTLEVEL (Interrupt Low Level Timer Register)
• IR (Interrupt Register)
• IMR (Interrupt Mask Register)
• GAR (Gateway IP Address Register)
• SUBR (Subnet Mask Register)
• SHAR (Source Hardware Address Register)
• SIPR (Source IP Address Register)
• INTLEVEL (Interrupt Low Level Timer Register)
• IR (Interrupt Register)
• IMR (Interrupt Mask Register)
• SIR (Socket Interrupt Register)
• SIMR (Socket Interrupt Mask Register)
• RTR (Retry Time Register)
• RCR (Retry Count Register)
• PTIMER (PPP LCP Request Timer Register)
• PMAGIC (PPP LCP Magic Number Register)
• PHAR (PPP Destination MAC Address Register)
• PSID (PPP Session Identification Register)
• PMRU (PPP Maximum Segment Size Register)
• UIPR (Unreachable IP Address Register)
• UPORT (Unreachable Port Register)
• PHYCFGR (PHY Configuration Register)
• SN_MR (Socket n Mode Register)
• SN_IR (Socket n Interrupt Register)
  • DISCON
  • TIMEOUT
  • SENDOK
• SN_SR (Socket n Status Register)
  • Listen (TCP listeners not yet implemented)
  • SynSent
  • SynRecv
  • FinWait
  • Closing
  • TimeWait
  • CloseWait
  • LastAck
  • Macraw
• SN_MSSR (Socket n Maximum Segment Size Register)
• SN_TOS (Socket n IP TOS Register)
• SN_TTL (Socket n IP TTL)
• SNRXBUFSIZE (Socket n Receive Buffer Size Register)
• SNTXBUFSIZE (Socket n Transmit Buffer Size Register)
• SN_IMR (Socket n Interrupt Mask Register)
• SN_FRAG (Socket n Fragment Offset in IP Header Register)
• SN_KPALVTR (Socket n Keep Alive Timer Register)

Believe it or not that is not simply a list of all registers.

Assumptions

• Your PC is connected to a network, and has a valid IPv4 address.
• You are not using the read and write methods directly.