A while back Cypress made a programmable chip that had USB capability, programmable general purpose IO and DMA for efficient data transfer. This turned out to b

A while back Cypress made a programmable chip that had USB capability, programmable general purpose IO and DMA for efficient data transfer. This turned out to be just what as needed to make cheap logic analyzers for hobbyists. https://www.eevblog.com/forum/testgear/logic-analyzer-that-is-using-the-cypress-ez-usb-fx3-chip/ https://www.eevblog.com/forum/testgear/logic-analyzer-that-i...