g_app_led_red:BOOLEAN:=FALSE;-- when TRUE use external LED control via app_led_red
g_dbg_led_red:BOOLEAN:=FALSE;-- [when g_app_led_red=FALSE]: when TRUE connect pout_debug_wave to the LEDs; otherwise let ctrl_unb1_board toggle them
g_app_led_green:BOOLEAN:=FALSE;-- when TRUE use external LED control via app_led_green
g_dbg_led_green:BOOLEAN:=FALSE;-- [when g_app_led_green=FALSE]: when TRUE connect pout_debug_wave to the LEDs; otherwise let ctrl_unb1_board toggle them