DS90UB927QEVM: Can not send information from serializer to deserializier

Hi Emily,

Why are you using I2C address 0x6A for the deserializer? The ALP software shows that deserializer's I2C address is 0x58.

What is the MCU I2C address?

Can you also disable Demo mode and let me know if you can R/W to the 928 registers?

Best Regards,

Gil Abarca

Hi Gil

Thank you for you reply.

Why are you using I2C address 0x6A for the deserializer? The ALP software shows that deserializer's I2C address is 0x58.

=> Because my hardware design setting is 0x6A in 928. But I don't know why ALP recognized as 0x58 automatically.

Could I set 928 I2C address as 0x6A using ALP?

What is the MCU I2C address?

=> MCU I2C address is 0xE2, Also can't be accessed.

Can you also disable Demo mode and let me know if you can R/W to the 928 registers?

=> I can not R/W to the 928 registers after removing the USB driver.

I have no experience with 927-evm, Thank you very much for your more help.

Hi Gil 

Thank you very much for your reply.

I'm very sorry to trouble you.

I have installed the new "Analog LaunchPAD" ,  open ALP→ disable Demo mode → click the "USB2ANY/Aardvark Setup"

I found that the "USB2ANY/Aardvark Setup" can not add any device.

Please see below picture: Add key all invalid, can not select.

Shall I need to connect the "USB2ANY" board to DS90UB927QEVM?

I don't have the "USB2ANY" board.  Is there any other way to connect it?

JDIC Emily

Hi Gil 

The ALP have connected successful.

but the ALP connect to 927-evm with I2C, My signal generator aslo need to connect to 927-evm with I2C.

my hardware connection: signal generator(LVDS+I2C)→ 927-evm→ FPD_LINKⅢ→ deserializier(928) and MCU

                                          ALP→ USB(I2C)→ 927-evm

There have 2 Master I2C devices. I can not sent information from my signal generator to 927-evm when connected with ALP.

Please kindly confirm how to do it. Can I use only ALP to write below information to 928 and MCU? 

0x18, 0x18, 0x19, 0x2F

0x18, 0x03, 0xDA

0x18, 0x07, 0xE2, 0xE2

0x18, 0x70, 0x58

0x18, 0x77, 0x58

0x18, 0xC6, 0x21

928 setting register: 

0x6A, 0x26, 0x14, 0x26  

 MCU setting register: 0xE2 

0xE2, 0x02, 0xFF, 0x03   

0xE2, 0x04, 0x03  

Thank you very much.

JDIC Emily

Hi Sir

Thank you for your reply.

I'm sorry, I don't know how to use ALP.

How to access 927, 928 and MCU on which operation tab of ALP and how to set it? 

1, please check below step, Is this correct?

example: write 0x18, 0x18, 0x19, 0x2F

in registers tab→  0x18 register →  0-7bit set 0x19→  apply→  reflesh→  0x18 register →  0-7bit set 0x2F→  apply→  reflesh

example: write 0x6A, 0x26, 0x14, 0x26

in remote registers tab→  0x26 register →  0-7bit set 0x14→  apply→  reflesh→  0x26 register →  0-7bit set 0x26→  apply→  reflesh

if the step are OK, how to set 0xE2, 0x02, 0xFF, 0x03 

2, I want to implement the following settings,  Could you provide the scripting to me? I want to try it.

927 setting register: 

I2C speed settings: 0x18, 0x18, 0x19, 0x2F

Pass through: 0x18, 0x03, 0xDA

Slave ID(0), Alias(0): 0x18, 0x07, 0xE2, 0xE2

Slave ID(1): 0x18, 0x70, 0x58

Alias(1): 0x18, 0x77, 0x58

INTB: 0x18, 0xC6, 0x21

928 setting register: 

I2C speed settings: 0x6A, 0x26, 0x14, 0x26  

 MCU setting register: 0xE2 

Display Backlight PWM setting 100%: 0xE2, 0x02, 0xFF, 0x03   

Display Enable : 0xE2, 0x04, 0x03  

Thank you very much.

Hi Sir

Thank you for you kindly support.

I have some problem about USB2ANY.

Now the hardware connection as below:

PC(USB2ANY explorer v2.7.0.5 API V2.7.0.0) → USB2any board (SDA,SCL GND) → 927-evm board (SDA,SCL GND)→ FPD LINK3→ 928 and MCU 

step: 927-evm power on → 928 and MCU power on → open USB2ANY software → open device→ select interfaces(I2C) → 3.3V ON, 5V ON

question1: Is the software and hardware connection method correct?

question2: How to define slave address, internal address and write data?

question3: How to write registers, what are the format about write and access the registers.

question4: When I click "load ", what is the format of document. I want to create a new register document.

My 927-evm address is 0x18, 928 address is 0x6A, MCU address is 0xE2

example: I want to write 0x18 0x18 0x19, how to set ?

JDIC Emily.

Hi Emily,

Based off of your previous screenshot with ALP ("The ALP connection successful"), it looks like you can use ALP without using the separate USB2ANY module. The USB2ANY explorer is normally not used for reading and writing I2C commands. ALP is the recommended GUI for interfacing with FPD-Link products.

Could you try this in the "Scripting" tab in the UB927 profile? If this method works, then we can disregard using the USB2ANY module.

• Write "Board.ReadI2C(0x18, 0)"

This will read from register 0 on the UB927 and return the I2C address in decimal form.

The above screenshot is in demo mode since I do not have a UB927 but should have similar results for you if the USB drivers are working correctly.

Emily chen said:

example: I want to write 0x18 0x18 0x19, how to set ?

In the scripting tab, write "Board.WriteI2C(0x18,0x18,0x19)"

Emily chen said:

My 927-evm address is 0x18, 928 address is 0x6A, MCU address is 0xE2

The 928 I2C address will automatically be recognized by the 927 in register 0x06

To set I2C pass through and setup communication to MCU:

Board.WriteI2C(0x18,0x3,0xDA)

Board.WriteI2C(0x18,0x7,0xE2)

Board.WriteI2C(0x18,0x8,0xE2)

Best,

Jack

Hi Jack

Thank you very much for your help.

I can write registers using scripting tab.

But I have one question:

In 0xE2, 0x02, 0xFF, 0x03  , there have 2 parameters(0xFF,0x03) need to write in 0x02 register.

I can not run  "Board.WriteI2C(0xE2,0x02,0xFF,0x03)"

How about the write format of 2 values?

Thank you very much.

JDIC Emily

Hi Jack

Thank you very much for your reply.

1, I already run all command, But it seems that this command(0xE2 0x02 0xFF 0x03) does not implement the function.

0xE2 0x02 0xFF 0x03: MCU PWM output 100%, PWM need high, but now PWM=0

2, The "board.ReadI2C()" can only read 1 byte, I'd like to read below command, have more than 2byte. 

0x18, 0xC7, 0x19, 0x00
0xE2, 0x30, 0xE3, 0x30, 0x01
0xE2, 0x00, 0xE3, 0x00, 0x07

Please share the command.

3,  After I buy the DS90UB927QEVM board back, do I need to burn some files on the DS90UB927QEVM board by case?

Thank you very much.