Upload error Olimexino-328 + MOD-ENC28J60

[gregh]

When the MOD-ENC28J60 Uext module is connected to the  Olimexino-328 the upload of any sketch mit Arduino 1.8.14 fails with: 

avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00

Without the Uext the upload works fine. The ethernet works fine.

Is this intended?

[LubOlimex]

This is expected. The same pins that are used for UEXT's SPI are used also for ISP programming. The MOD-ENC28J60 uses SPI. The ATmega328 chip has only one SPI.

Not much that can be done about it.