필터 지우기
필터 지우기

How to convert byte array to single point value in matlab function for compiling for TI C2000 hardware

조회 수: 5 (최근 30일)
I have a matlab function block I'm trying to compile for the C2000 hardware (F28069M chip in particular). The block brings in a 8-byte message from a canbus port read, which I'm trying to use the Typecast function to convert the 8 bytes into two "single" values. If I use something like:
byte1=DataIn(5);
byte2=DataIn(6);
byte3=DataIn(7);
byte4=DataIn(8);
X=uint8([byte1 byte2 byte3 byte4]);
DataOut = typecast(X,'single');
I get the error "For code generation, interger input or result classes for typecast must map directly to a C type in the target hardware"
if I try to specify the C2000 data type 'float' or 'float32', I get an error on compiling "Unsupported data type for conversion"
Is there a way to do this type of typecast (from 4-byte array to float) as part of a matlab function for the C2000 hardware?

답변 (1개)

Mark McBroom
Mark McBroom 2024년 3월 16일
byte1 = bitshift(uint32(DataIn(5)),24);
byte2 = bitshift(uint32(DataIn(6)),16);
byte3 = bitshift(uint32(DataIn(7)),8);
byte4 = uint32(DataIn(8));
DataOut = single(byte1+byte2+byte3+byte4);

Community Treasure Hunt

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

Start Hunting!

Translated by