Hi,
In addition to Brian:
* You need a shielded room, else the WiFi of your neighbours and any other "true" HV signal would "overwrite" the tiny signals.
* you need a dedicated software on your PC...to
* No other software (no HMI driver, no OS, no software clock, ..)may run on the PC, else the other thread will use the SDRAM, too. Reading/writing random data.
* the address lines will cause noise in the same spectrum as the data lines...as they are routed almost identical to the data lines...and need to be controlled with the same timing as the data lines
* any other periferal will radiate signals (USB, monitor, graphics card, Ethernet, SDD, HDD, power supply
I don't say it is impossible.
But it's a challenge. You need to know the exact hardware, you need to have full software control, you need to have clean environment, you need a lot of effort...the useful data rate is low, the error rate will be high...
It's like playing music with a needle printer. Look for youtube videos.
You need the exact hardware, maybe you need to do modifications, maybe need a new controller..
Klaus