diff --git a/BBU/DCU on STDRI BBU.md b/BBU/DCU on STDRI BBU.md
index e459740..019c36e 100644
--- a/BBU/DCU on STDRI BBU.md	
+++ b/BBU/DCU on STDRI BBU.md	
@@ -18,12 +18,34 @@ Workshop RPI5 (Лиза Желтова)
 
 **ARCHITECTURE**
 1. Питание 
-	1. DCDC 12V - 5V на малину
+	1. DCDC 12V - 5V на малину (SY81020VDC)
 	2. DCDC 3v3 1v1 1v0 (EN и PG)
 2.  Led state
 	1. LED x3 (AD16DS)
-3. FPGA (GW) 
-	1. 
+3. FPGA (GW2A-LV55PG848C8/17) 
+	1. 1-WIRE (x2)
+		1. Temp & Humidity Sensors
+	2. OpenCollector (x6)
+		1. Inductive sensor
+	3. SPI 
+		1. Flash (w25Q16JVSNIQ)
+	4. OpenCollector
+		1. Step Motor Driver (EM542S)
+	5. DC OK`s
+		1. 12V
+		2. 24V_DUT
+		3. 24V
+		4. 48V
+4. Raspberry Pi 5
+	1. Ethernet - connect to PC
+	2. USB
+		1. USB - JTAG (Adafruit FTDI FT232H)
+	3. Link and control FPGA
+		1. UART 
+		2. I2C
+		3. GPIO 
+	4. Power (5V
+	5. 
 **SCH** 
 
 ##