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The main problem is that I am using a 128K RAM on my board and the code was written for a 32K Ram. Now one would think that it would be as easy as changing the ADDR from [14:0] to [16:0] and then also changin how the address is obtained from Hcnt and Vcnt but none of this works. What happens...

Thanks for the advice guys. Probelm solved.

hello, I am trying to port the vga controller below to a 128k Ram[16:0] and was hoping someone may have already done this or could direct me towards the right way to do this. When I am having little success getting the controller to read a picture stored in the RAM correctly. library IEEE; use...

Thanks for your help so far. I have another quick question regarding the memory controller.... If I was going to have some 8-bit data values to write to the RAM through the controller but instead of an external source, use an input file, how would I go about doing this?

Thanks again for your quick response. I have reworked the RAM portion to look like this: ENTITY SRAM IS PORT( ADDRESS: IN STD_LOGIC_VECTOR(16 DOWNTO 0); DATA_IN: IN STD_LOGIC_VECTOR(7 DOWNTO 0); WE:IN STD_LOGIC; OE:IN STD_LOGIC; CE:IN STD_LOGIC; CLK: IN STD_LOGIC; DATA_OUT: OUT...

Thanks for the response VHDL guy. Here is what I have discovered that has lead me to more confusion than before. First of all, I am using the xs40 board with a 128kx8 RAM on it. I have written some VHDL to test writing into RAM and retreiving the contents of a particular location but I do not...

Hello, I am working on a project to eventualy display frames on a monitor via the Xs40 board. Since this is such a large undertaking I have decided to start with writing some values to RAM and then getting them to display on the 7seg in order to gain a better understanding of RAM I/O and how to...