Xintf initialisation on a F28335 with an ezdsp

joachim stadlbauer

Other Parts Discussed in Thread: AMC1210, CONTROLSUITE

Hello,

maybe some of you can help us (two students from Germany). Is there any tutorial or example for the Xintf (external interface) initialisation on a F28335?

A step by step documentation or some sort of tutorial would be awesome and helpful.

Greetings from Regensburg (Germany)

Michael and Joachim

over 12 years ago

0 David M. Alter over 12 years ago

TI__Guru 61235 points

Look at the code that accompanies appnote SPRA958.

http://www.ti.com/mcu/docs/litabsmultiplefilelist.tsp?sectionId=96&tabId=1502&literatureNumber=spra958l&docCategoryId=1&familyId=1414

There is a file xintf.c that has an example.

Regards,

David

0 joachim stadlbauer over 12 years ago in reply to David M. Alter

Prodigy 20 points

Hi David,

thank you very much for that link. This file helped a little bit. The main goal ist to connect the ezdsp and the ti AMC1210 EMV via XINTF

in order to evaluate 4 sensors prallel. We (newbies) think that this is quite difficult and we have no idea how to solve the problem or where we

should start.

Mabye we can find a good hint here.

Regards,

Joachim & Michael

0 Lori Heustess over 12 years ago in reply to joachim stadlbauer

TI__Guru* 92780 points

Joachim & Michael,

Within controlSUITE (www.ti.com/controlSUITE) there are XINTF examples for the 2833x

C:\ti\controlSUITE\device_support\f2833x\v133\DSP2833x_examples_ccsv4

The dma_xintf_to_ram configures the XINTF and then transfers data to it using the DMA. You can ignore the dma stuff and focus on the XINTF configuration.

joachim stadlbauer said:
The main goal ist to connect the ezdsp and the ti AMC1210 EMV via XINTF

For this you might want to look at the 2834x examples. Since this device doesn't have an on-board ADC so on the controlCARD we placed an external ADC. This example shows how to configure the XINTF to access that ADC.

C:\ti\controlSUITE\device_support\c2834x\v112\DSP2834x_examples_ccsv4

adc_on_xintf

2834x controlCARD schematics:

C:\ti\controlSUITE\development_kits\~controlCARDs\CC2834xHWdevPkg

-Lori

C2000™︎ microcontrollers

C2000 microcontrollers forum

Xintf initialisation on a F28335 with an ezdsp