Using SLAA210A - Getting Started With the Data Converter Plug-In

Hello Mr. Thompson,

please use address 0xA0024000 with the jumper settings important to the address generation:

5/6K interface board (revB):

W1: open
W6: 1-2

THS1206M-EVM

W2: closed
W3: closed
W4: A

If you have additional questions please let me know!

Best regards,
Lars

Hello Mr Lotzenburger,

Thanks for the information! We have made progress and the analyzer shows we are communicating with the board when dc_configure is called. However, the call to dc_readblock shows minimal activity and I do not see anything being uploaded to my buffer.

I am concerned over the interface settings being used in the DCP. I am using:

Interface Settings                                         ADC Settings

ADC Address - 0xA0024000                      Channel Set:                   Autoscan 4 SE
Data Shift        - 0                                           Conversion Clock:         1000 kHz
DATA_AV Polarity - High                              Mode                                 Continuous Conversion
Data_AV Type       - Pulse                            Trigger Level                    4
Read/Write Type  - RD/WR                          Test Mode                        Normal Mode
Data Format         - 2's                                  Ref Voltage                       Internal
DSP Interrupt       - Ext Int4
Clock Source       - extern

 The only changes from figure 6 in SLAA210A are the ADC Address, Channel Sel, and Trigger Level

Please let me know if there is anything in the settings I am missing.

Thanks!

Harry

Hello Mr. Thompson,

Looks like you don't get the interrupt from the THS1206. You selected Ext Int 4, but with J13 connected to "b" on the 5/6k I/F you have to select Ext Int 5 in the GUI. The same with the Clock Source for the THS1206. With set to "extern" you need to supply it from an external source. I'd recommend to use Timer 1 first and setting J14  to 3-4 (TOUTb) in this case.

I attached an example project with your hardware config and CCS3v3. Included in those files you can also find an htm file describing the s/w and h/w settings.
Just in case there are still problems....

Please let me know if this solved your problem!

Best regards,
Lars

Hi Lars,

Still having trouble.

Should bit 5 (that would be 0x0020) in the interrupt enable register be set when your programs are running? I tried the .out files you sent (using CCS 3.1) and it appears bit 5 is not being set.

Thanks for your assistance!

Harry

Hi Lars,

 **Kevin typing here:

Lars, our docs say TOUTa goes to timer 1 and TOUTb goes to timer2.  When we connected W14 to 3-4 as you say, the config routine stopped working.  We went back to the 1-2 position and the config worked again.  But our DMA buffer is still not being filled.  It is all 0's.

end of Kevin's typing****

Any ideas are welcome!

Harry

Hi Lars,

I got a program running & receiving information when I use the "analog input AINP" channel select. However, the THS1206 will be reading 4 analog signals, so I will need to use the "Autoscan 4 SE" channel select. When I do this, the values seem skewed.

Is there anything special I need to consider when using the 4 channel select?

Could there be a timing issue?

Thanks!

Harry

Hi Harry,

nice to hear that you can sample now.
I'm not aware of any special care abouts in "Autoscan 4 SE", except that bit combination "11" for  TRIG1,0 is not allowed.
Could you send a screenshot of your graph(s)? I assume you sorted the buffer in 4 sub buffers to deinterlace the channels?!

Best regards,
Lars

Hi Lars,

Can you contact me?

We have discovered the clock on the THS1206 is running at 1KHz, which is way off.

Thanks for your valuable time,

Harry Thompson

Dear Lars,

Thanks for your great help! Everything is working and we have made great progress!

Cheers,
Harry Thompson

Hi,

I have run this code in ccsv3.1 successfully and it works great. However, is it possible to get a CCSv5.4 version of either this version of the code or the 3.3v? I tried importing the 3.3 version however I get errors error when I try to debug:

Any info you could provide on how to get this valuable code to a higher version would be greatly appreciated.

Sincerely,

Brady