| 摘要 |
<p>A boundary scan method, system and device, wherein the method includes: a scan signal generating apparatus generating single polarity boundary scan signals in parallel and sending them to a boundary scan controller (S10) converting received boundary scan signals to serial differential type boundary scan signals (S11) and perfoming boundary scanning for boundary scan devices connected between a scan signal output port and a scan signal input port by converted boundary scan signals (S12). The system includes a scan signal generating apparatus, a boundary scan controller, and boundary devices. The boundary scan controller includes a data formatconverting module and a scan signal driving module. The boundary scan device includes a scan signal receiving module and a scan signal output module.</p> |
