System for the connection of debugger to the device through USB connector

摘要

system for connecting debuggera device via interface connector, positive supply voltage (vbus) connector, usb bus (usb) is attached to one terminal of rezystora first (r1), the second clamp is attached to one terminal of the second rezystora (r2) and the base of transistor (t), whose emitter is attached to the positive supply terminal (vcc)accompanied by the second clamp rezystora second (r2). the collector of a transistor (t) is attached to one terminal of rezystora third (r3), and inputs control analogue multiplexers first (u1) and the second (u2). the second clamp rezystora third (r3) is attached to the weight (gnd), to which is attached a weight also usb connectors (usb).the first line data (d -) connector, usb (usb) is coupled to a first input przeu0142u0105czanego multipleksera (u1) and the second line data (d +) connector, usb (usb) is coupled to a second input przeu0142u0105czanego multipleksera (u2).solution the first (1) multipleksera first (u1) is annexed to the data input (dbg _ date) debuggera interface processor (cpu), and a second (2) is attached to the first entry (usbd -) block usb main processor (cpu).solution the first (1) multipleksera second (u2) is annexed to the input clock (clk dbg _) interface debuggera central processing unit (cpu), and exit the second (2) is attached to the second input (usbd +) block the usb processor (cpu).