User guide

172 www.xilinx.com System Generator for DSP User Guide
UG640 (v 12.2) July 23, 2010
Chapter 2: Hardware/Software Co-Design
Output should look like this:
Notice the sine wave frequency increasing proportionally to the phase increment.
8. Utilize Debug Tools
If the program is not working properly, there are several tools that can be utilized to ease
debugging. Deselecting the Disable Display checkbox in the PicoBlaze Instruction
Display block causes the block to be activated, displaying the updated program counter
and instruction each clock cycle. In conjunction with enabling the display, the registers and
control flag values can be viewed by selecting the Display Internal State in the PicoBlaze
Microcontroller block. Change the Single-Step Simulation block to single-step mode by
double clicking on the block. Step through the simulation to debug.