Embedded Multi-Resolution Signal Tracing For Amba Ahb With Real Time Lossless Compression

AHB Bus Tracer is a significant infrastructure that is needed to monitor the on chip-bus signals, which is vital for debugging and performance analysis and also optimizing the SOC. Basically on chip signals are difficult to observe since they are deeply embedded in a SoC and no sufficient I/O pins are required to access those signals. Therefore, we embed a bus tracer in SoC to capture the bus signals and store them. In this paper a multiresolution AHB On-Chip bus tracer is proposed for system-on-chip (SoC) debugging and monitoring which is capable of capturing the bus trace with different resolutions and efficient built-in compression mechanisms. Subsequently compression of the trace without any loss of the actual trace which when reconstructed at the analyzer will remain the same. The trace data will be decompressed on the host for further observation and debugging. The experimental results show that the proposed approach was designed successfully; the RTL simulations were performed successfully along with successful synthesis using Xilinx ISE