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Coldfire v1 mcf51cn128cgt TCP/IP communication problem

Question asked by swapnil vhanale on Mar 15, 2018
Latest reply on Mar 20, 2018 by Fang Li

Hello All, 


I am Developing Serial to Ethernet converter using coldfire v1 mcf51cn128cgt. I have ported freertos with lwip stack.

lwip initialization done successfully. But Program stuck at sys_mbox_fetch() in tcp thread for forever and also ETHER_EN bit of Ethernet control Reg[ECR] get clear. And Ethernet low level Communication stops unexpectedly. 


Is there any idea why this is happening, Waiting for good answers.