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Altera_Forum
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12 years ago

Unable to boot from on-chip RAM

Hi, I am using QuartusII version 11.1. I have designed a custom board with Cyclone IV E FPGA, EPCS16 configuration device, character LCD and some other ICs. I could successfully build a Qsys ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Hurray! This worked for me!

I seem to remember to have performed this before as well but withouth any result. It has worked now. Maybe I had made some mistake before.

The JTAG UART block was somehow preventing NiosII from getting reset. Thank you dsl for the support.

During the update of memory initialization file from QuartusII, I get the following warning:

Warning (113015): Width of data items in "first_nios2_system_onchip_mem.hex" is greater than the memory width. Wrapping data items to subsequent addresses.

This is even though the onchip_mem is specified as 32 bits in Qsys, and the hex file was generated by SBT using the make of mem_init_generate. There SBT used width of 32 bits. Why is it that I get this warning? But anyway it worked nicely for me.

thanks and regards,

rajesh