hungrymind
Newbie level 5

Hi,
I tried to simulate the example shown at SPI Ethernet Library in proteus.
When I'm simulating, Continuously I'm getting a warning "Stack underflow executing RETLW instruction"
And it doesn't reply to TCP/UDP packets :-(
What is the cause of that warning? and How to solve it?
I tried to simulate the example shown at SPI Ethernet Library in proteus.
When I'm simulating, Continuously I'm getting a warning "Stack underflow executing RETLW instruction"
And it doesn't reply to TCP/UDP packets :-(
What is the cause of that warning? and How to solve it?