How do I return a pointer for the Aardvark API?

I'm using Total Phase's Aardvark USB Adapter and I'm wondering how to return a pointer?
I'm trying to use:
dataOut = [0 18];
dataTargetID = NET.createArray('System.Byte',19);
TotalPhase.AardvarkApi.aa_i2c_write_read(aard_device, slaveAddress, ... TotalPhase.AardvarkI2cFlags.AA_I2C_NO_FLAGS, 2, dataOut, write_count, 19, dataTargetID, read_count);
and I want to get write_count and read_count. From the user manual: http://www.totalphase.com/support/articles/200468316-Aardvark-Adapter-User-Manual#s5.5
it says the input is a unsigned short pointer?
I've tried:
read_count = NET.createArray('System.UInt16',1);
read_count = libpointer('UInt16');
read_count = 0;
but I always get the error:
No method 'aa_spi_slave_read' with matching signature found for class
'TotalPhase.AardvarkApi'.
Thanks!
-Mike

댓글 수: 1

libpointer objects are only for use with the calllib command. No .net or other method will recognize them.

댓글을 달려면 로그인하십시오.

 채택된 답변

Michael
Michael 2014년 7월 14일

0 개 추천

Use 'methodsview TotalPhase.AardvarkApi' to see what aa_write_read returns. The read_count and write_count is returned so passing by reference isn't needed

댓글 수: 1

I have the oppositie problem- the counts are simply returned but the values are passed by reference. Did your code successfully return the values?

댓글을 달려면 로그인하십시오.

추가 답변 (0개)

카테고리

도움말 센터File Exchange에서 Startup and Shutdown에 대해 자세히 알아보기

질문:

2014년 7월 11일

편집:

2018년 1월 17일

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by