Smartie
Member
Hey guys,
I have a FPGA based logic analyser that I'm trying to reverse engineer so I can load my own code onto it and add more memory.
While in the process of reverse engineer it, Most of the ICs have had their part number removed meaning I'm unable to identify what the IC is.
I've figured out two of four chips that are unknown, A FPGA (ep1c6q240 Altera Cyclone) and a Op-Amp (LM358). However I can't figure out the part number for this particular one.
I'm assuming it takes in a Serial signal but I do know that it outputs a voltage or analog signal as I can see it with my multi-metre when i change the threshold voltage in the software on my PC.
I have attached Images of the IC and of the logic analyser.
I did some tracing with my multi-metre and was able to draw out a simple schematic of the Chip.
I think the Chip could be a DAC and it does have the Texas Instruments logo on it, but I was unable to find a datasheet in the DAC section that fit with this Chip.
Any help would be greatly appreciated!!!
Cheers
Roman
I have a FPGA based logic analyser that I'm trying to reverse engineer so I can load my own code onto it and add more memory.
While in the process of reverse engineer it, Most of the ICs have had their part number removed meaning I'm unable to identify what the IC is.
I've figured out two of four chips that are unknown, A FPGA (ep1c6q240 Altera Cyclone) and a Op-Amp (LM358). However I can't figure out the part number for this particular one.
I'm assuming it takes in a Serial signal but I do know that it outputs a voltage or analog signal as I can see it with my multi-metre when i change the threshold voltage in the software on my PC.
I have attached Images of the IC and of the logic analyser.
I did some tracing with my multi-metre and was able to draw out a simple schematic of the Chip.
I think the Chip could be a DAC and it does have the Texas Instruments logo on it, but I was unable to find a datasheet in the DAC section that fit with this Chip.
Any help would be greatly appreciated!!!
Cheers
Roman