Custom board won't communicate with SPI flash

1 week ago

Hi 3hl3rt,

Thanks for your question online and for your interest in our BLE solutions.

Since you are using the Pro-DK to program your custom board via JTAG, I would recommend first check the following tutorial just to make sure that you have the proper configuration :

http://lpccs-docs.dialog-semiconductor.com/Tutorial_SDK6/debug_probe.html

According to the second screenshot from the attachments, it seems that the JTAG is detected. However, I am not able to see the right column. Since it is DA14531, the DA14531 option should be selected from the right column. It should be below DA14530.

After choosing the DA14531, launch the Toolbox and navigate to the Board Setup :https://s3.eu-west-2.amazonaws.com/lpccs-docs.dialog-semiconductor.com/UM-B-083/tools/Board_Setup.html

The correct configuration for the SPI pins should be :

SPI-CLK : P0_4

SPI-CS : P0_1

SPI-MISO : P0_3

SPI-MOSI : P0_0

Thanks, PM_Dialog

• Log inorregisterto post comments

1 week ago

Thanks for the reply, I look at the jtag setup.

I don’t know if it is a hint or not, but I cannot get jtag working if reset (P00) is also connected to the board.

I do have the right pins selected for SPI

• Log inorregisterto post comments

1 week ago

Hi 3hl3rt,

>>>I cannot get jtag working if reset (P00) is also connected to the board.

Do you mean from the Pro-DK to your custom boards? What is the state of P00?

Thanks, PM_Dialog

• Log inorregisterto post comments

1 week ago

I was wrong about the reset (P00) being needed for for JTAG operation.

I have captured the SPI data on at analyzer - it seems like the flash actually responds, but I am unsure what the actual issue is.

This data is when I press "Connect" @ "SPI flash programmer" in the toolbox.
All three images are the same data, just zoomed in

Attachment	Size
setup_4.png	25.68 KB
setup_5.png	26.33 KB
setup_7.png	22.26 KB

• Log inorregisterto post comments

1 week ago

Hi 3hl3rt,

Yes, the reset is not needed. Which SPI flash are you using?

If you press the “Connect button” from the Flash Programmer, are you able to connect to the flash? Can you read it?

Since you have the correct connections between Pro-DK and your own board (as described in the suggested tutorial), please share some screenshot showing the steps in the SS Toolbox.

Did you check the pins in the Board Setup?

Thanks, PM_Dialog

• Log inorregisterto post comments

1 week ago

The flash is the AT25XE512C-MAHN-T

I am not able to read it - I have attached a recording showing the steps - I have tried multiple boards.

Attachment	Size
da 14531_0.mp4	6.79 MB

• Log inorregisterto post comments

6 days ago

Hi 3hl3rt,

The AT25XE512C is supported by the flash programmer ://www.xmece.com/sites/default/files/2021-02/AN-B-088%20DA145xx%20Flash%20Selector%20Guide_v1.2.pdf

I would suggest to try it with SST v5.0.16 -SmartSnippets Toolbox V5.0.16 for Windows OS

See attached the steps you should follow.

TheDialog Smartbond Flash Programmer for Windows OScan be also used – see the user guide :

http://lpccs-docs.dialog-semiconductor.com/um-b-138/index.html

Thanks, PM_Dialog

Attachment	Size
SST.zip	325.55 KB

• Log inorregisterto post comments

6 days ago

Hi 3hl3rt,

Yes, I saw this video but you pressed the “detect button” instead of “open”. In the v5.0.16 you should see the “Launch” button, so I suggested you this version just to make sure that we are doing the same steps.

Thanks, PM_Dialog

• Log inorregisterto post comments

5 days ago

No worries :)

To remove as many points of errors as possible, U3 is not mounted and the flash is powered directly.

when I look at the logic analyzer, I get a “7F” on the MISO from time to time, so it seems like something is going on.

• Log inorregisterto post comments