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Altera_Forum
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16 years ago

UDP Read and Writing in SDRAM

Dear Friend's i am sucessfully able to read data through UDP but when i simultenauselly trying to write this received data in SDRAM it generate a message during run time and held operation. a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi Kaushal,

Are you sure that 'myaddr' correctly points to your UDP data buffer? If something went wrong and you are writing to a code or program data section it would result somehow in this abnormal behavior.

Other possibility: I don't know how smsc91 driver works, but maybe you need to suspend it whenever you write to your udp buffer; from what you say I supposer that both rd and wr operation can be concurrent and operate on the same memory area. So I think you need to use a mutex or something like it.

Regards

Cris