ALTERA EPXA1 SDRAM BUG

May 20, 2005 0 Replies

Hi all,



have everyone experience about a second SDRAM with the Altera FPGA+HARCORE-CPU EPXA1? Its is unpossible for me to access the second SDRAM. I used a modified "Hello World" program from ALTERA, Linux running on the hardcore CPU and ARMBOOT to address the second SDRAM (Chip-Select SD-CS1) device. But I always get the content of the first SDRAM (Chip-Select SD-CS0). Both SDRAM devices shared the address and data signals, but every device get his own chip_select signal.



I would appreciate any help in solving this problem.



Regards Ralf


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