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Oh yeah, memory_out should be matrix_1 too. I tested, if I could send back different data, but forgot to change back.
The simulator in ISE doesn't work under win8.1 so I cannot do it. I also tried Symphony EDA at the beginning but it just gives me a constant '1' on TX.
Hello.
I made a simple UART module (receive and send) in VHDL for my Spartan 6 (Nexys 3) FPGA.
That module reads multiple bytes, stores them, then sends back. If I do it with 4-8 bytes theres is no problem, BUT if I increase the byte number, it randomly keeps crushing and stops working. I have...
Hello.
I wanted to make a led design with controllable brightness. The controlling would work via usart ('0' = darkest --- '9' = brightest, simple) It works good, BUT it doesn't receive every command. If I press a button, sometimes it takes 4-5 presses to receive the data, no idea why. Could you...
@TrickyDicky:
That's working fine, thx.
But I still don't know why my solution doesn't work, care to explain?
@sagar.bavane:
The simulation is good, that's how it should work, but in real life it wasn't like that.
Hello.
I have a finite state machine and I want it to change from state 'idle' to state 'start' when I press a button called 'EN' (rising_edge(EN)). My problem is, it doesn't behave like I wanted. If I press the EN button and keep it pressed, the fsm is going to change the states in every clock...
Hey there.
Now I have a new, but similar problem. I wanted to receive data via USART. I have a seven-segment display and if I press '0' then it should show 0, if '1' then 1 .... if '9' then 9.
But it show strange things. The wrong LEDs are lighting. I figured out if I press '@' then it show 0...
Hello. I'm a beginner at microcontroller programming. I have an STM32VL Discovery board and I made a simple program that counts up and sends the values via USART. I thought it's an easy task. Well the program is working, but I am getting wrong data. On the serial monitor I see the ASCII...
bking's was the correct answer, it solved the problem, thanks.
Well, I have no idea, I just learnt that way, but you are right, I should use integer.
I think it's better to know that 'else nothing happens...'
Now I have a new problem with that. It works great except between 127-255. I...
Hello everyone.
I'm new to the FPGA world and a got a little problem.
I wanted to make a simple frequency divider with changeable frequency rate. The first part works good (there are lot of tutorials), but the second...
I have 8 buttons, with them I wanted to change the frequency between 0 and...
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