DP83825 - reset from code

[Eukaryota]

Hi,

is there a way to programmically reset DP83825 on Teensy 4.1 board? I now there is RST pin connected to CPU but how to access it?

Thank you,

 

[shawn]

Have a look at my Teensy 4.1 driver code (https://github.com/ssilverman/QNEthernet/blob/master/src/qnethernet/drivers/driver_teensy41.c) for some insights there.

Note that I haven't yet figured out how to reset the MAC on the processor without requiring a system reset. (See and trace through EthernetClass::end() in EthernetClass.cpp -> enet_deinit() in lwip_driver.c -> driver_deinit() in driver_teensy41.c.) You'll find this note:

FLASHMEM void driver_deinit(void) {
  // Something about stopping Ethernet and the PHY kills performance if Ethernet
  // is restarted after calling end(), so gate the following two blocks with a
  // macro for now

 

[Eukaryota]

Thank you. That helped