SM501_DC_PANEL_CONTROL_FPEN
control &= ~SM501_DC_PANEL_CONTROL_FPEN;
control |= SM501_DC_PANEL_CONTROL_FPEN;
control |= SM501_DC_PANEL_CONTROL_FPEN;
control &= ~SM501_DC_PANEL_CONTROL_FPEN;
SM501_DC_PANEL_CONTROL_FPEN |