Testing UP 1.6 PCB

Testing overview

  • First, do Easy Testing
  • If Easy Testing is passed, Detail Testing is not requred.
  • Second, Do Detail Testing and check error messages. Fix problems.

Easy Testing

Required Items

  • jumper wires (S)
  • SD Card (S)
  • mini USB cable (M)
  • USB power suppiler (M)
Sato send marked (S) items, please prepare marked (M) item by tester.

White jumper wire has though hole - though hole terminal.
Yellow jumper wire has though hole -  box header terminal.

Testing Sequence

  1. Connect between J702 and J201-21C (silked +5V) with a jumper wire.
  2. Insert a SD card to U302. Note:If the SD card is not inserted, the diagnoser judges a error.
  3. Connect between J701 and power supplier with a mini USB cable. Easy tesing can use handy phone vattery charger as the power supplier.
  4. When LED is blinking fast (5 times / 1 second). the diagnoser is testing.
  5. After about 10 seconds, diagnosis is finished. 
  6. Check a LED passing.

#1

When J201 is not soldered, use a white jumper wire.
When J201 is soldered, use a yellow jumper wire on the back side.

#2

#4

Judgement

  • Passed: The LED lights up.
  • It has problems: LED is blinking slow (1 times / 1 second).

Detail Testing

Required addtional items

  • personal computer
  • envrioments for the USB - serial port

Setup - Ingore hardware serial number for Windows

Windows adds new comport number when connected new PCBs. Plese setup your registry to aviod weaste time. Please check an article on ftdi web site.
This is my configuration for FT230X. Please refer it.

Setup serial port terminal

If tester have already setuped a favorite serial port terminal, please ignore this section.
  1. Download Tera Term 
  2. Unzip teraterm-4.97.zip
  3. Execute teraterm-4.97\ttermpro.exe
  4. Select serial and PCB's port number.
  5. Setup configuration for serial port. 
  6. Open menu Setup -> serial
  7. baud rate: 500000, data:8bit, parity:none, stop:1bit, flow:none (note: portnumber may be not COM4)

Testing Sequence

  1. Insert a SD card to U302. Note:If the SD card is not inserted, diagnoser displays a Error.
  2. Connect between J702 and J201.21C (silked +5V) with a jumper wire.
  3. Connect between J701 and a Personal Computer with a mini USB cable. When LED is blinking fast (5 times / 1 second). the diagnoser is testing.
  4. Open a serial port terminal on the PC.
  5. After about 10 seconds, diagnosis is finished. 
  6. Check messages on the terminal.
The terminal displays testing process. You can display tested result one more time. Press 'd' two times on the terminal to display the result.

Trouble Shooting

These are candidates of cause of problem.

LED does not light

  • The power is not supplied.
  • programming mistake for U901
  • wiring problem between D701 and U803
  • wrong direction for D701
  • defective X903

PC cannot communication via USB

  • The power is not supplied.
  • programming mistake for U901
  • defective U703 or X903

U601toU605,VRAM: NG

  • defctive or wiring problem - U601, U602, U603, U604 or U605
  • Diagnoser cannot specific where IC has problem

U301,GPRAM xxx: NG

  • xxx is used 512K. The other is cause of defctive U301
  • wiring problem between U301 and U803

U303,FM25CL64: NG

  • defctive or wiring problem U303
  • wiring problem between U303 and U803

U701,SQISRAM xxx: NG

  • xxx is used 128K.  The other is cause of defctive U701.
  • wiring problem between U701 and U803

U901,M25P40 xxx: NG

  • programming mistake for U901
  • wiring problem between U901 and U803

WM8731, ADV7513, Si5351: NG

These ICs are used a I2C bus. When a device has problem on the I2C, diagnoser judges error in 3 devices. Diagnoser cannot specific where IC has problem.

U702,SDC: NG

  • A SD card is not inserted.
  • wiring problem between U701 and U803
ċ
diagnoser_20170525.jic
(512k)
Kyoudou Kumiai Unagi Kaihatu,
2017/11/08 18:27
ċ
diagnoser_20171106.jic
(512k)
Kyoudou Kumiai Unagi Kaihatu,
2017/11/08 18:27
ċ
diagnoser_20171106.sof
(152k)
Kyoudou Kumiai Unagi Kaihatu,
2017/11/08 18:27
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