LHCb detector is a general purpose experiment instrumented in the forward region at the LHC, specialized in b- and c- physics, new physics and CP violation. The Vertex Locator (VELO) detector is being upgraded along with the rest of the tracking system and readout architecture during 2019-2020. The aim of this poster is to present the architecture of the control and readout firmware on the VELO specific back-end boards. Latest progress towards the installation and commissioning will be shown.