LAUNCHXL-F28377S: 40-pin connectors

Jingtai

Part Number: LAUNCHXL-F28377S

I have the Launchxl-F28377S and try to use ADS5560 and DAC7760 to connect to Launchxl-F28377S for testing. The ADS5560 requires a SPI for programming and some GPIOs for COMS/DDR parallel outputs, The DAC7760 requires a SPI. How are pins on 40-pin connectors of Launchxl-F28377S selected?

DAC7760 and DAC8760 are similar structures.

over 8 years ago

0 Jingtai over 8 years ago

Genius 4575 points

Supplement: In the test ADC INs, DACs and PWMs on chip are not used. Therefore 40-pin connectors will be connected to ADS5560 and DAC7760.

0 Gautam Iyer over 8 years ago in reply to Jingtai

Guru 192875 points

Hi,

I didn't understand what you're looking for? Are you looking for the 40-pin header description? You can go through the schematics present here:

C:\ti\controlSUITE\development_kits\LAUNCHXL-F28377S\HwDevPkg

Regards,

Gautam

0 Jingtai over 8 years ago in reply to Gautam Iyer

Genius 4575 points

No, I know the defination of the 40-pin. My question is that many pins have been occupied by ADC INs, PWMs, which pins Can I use for SPIs and parallel data input from extra DAC as described in last post?

0 Gautam Iyer over 8 years ago in reply to Jingtai

Guru 192875 points

As I can understand you need 2 SPI ports, right?
SPIA : GPIOs16,17,18,19 on Launchpad
SPIB : GPIOs63,64,65,66
SPICee: GPIOs69,70,71,71 (I guess 70 is not present on the board)

You can find few more pins for SPI ie GPIOs58,59 etc...

Regards,
Gautam

0 Jingtai over 8 years ago in reply to Gautam Iyer

Genius 4575 points

I have to post a new to insert tables. Please see that.
You have not replied parallel data input from ADS5560. Can you look at the ADS5560 datasheet?

0 Gautam Iyer over 8 years ago in reply to Jingtai

Guru 192875 points

Jingtai said:
You have not replied parallel data input from ADS5560. Can you look at the ADS5560 datasheet?

Yeah I missed the parallel data interface. The 10 pins you're looking for Parallel interface are GPIOs 10 to 21 out of which GPIOs 13 to 21 would be very much required. In this case SPIA (GPIOs 16,17,18,19) gets blocked!

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LAUNCHXL-F28377S: 40-pin connectors