Trasmettere variabile float attraverso seriale

50

float myFloat; // ho una var float
char *myBuffer; // ho un puntatore a char

// assegno il puntatore della var float al puntatore a char utilizzando il cast
myBuffer = (char *)(&myFloat);

// ora myBuffer punta al primo byte della variabile float
// usando la matematica dei puntatori ora posso leggere tutti e quattro i byte del float

dato = *myBuffer;  // leggo il primo byte
myBuffer++;         // punto al secondo byte

dato = *myBuffer;  // leggo il secondo byte
myBuffer++;         // punto al terzo byte

dato = *myBuffer;  // leggo il terzo byte
myBuffer++;         // punto al quarto byte

dato = *myBuffer;  // leggo il quarto byte

// per ricomporre il valore float basta fare il processo inverso
// scrivendo in myBuffer i vari byte.

Comments

Submit
0 Comments

More Questions

boolean in crandom number c ModuleNotFoundError: No module named cv2
check dns server in linuxread files in c how to get user input in c
print boolean value in clatex font sizes see if two strings are equal in C
how to download file in powershellprintf with bool invoke-webrequest download file
write in file in cmongodb delete all documents how to genrate a random number in C
how to print boolean in csleep in c programming install zoom on ubuntu
c concatenate stringstake array as input in c install gitk mac
remove element from np arrayprint an array in c C static libraries (creating object files)
exponentials in cC++ initalize int16_t value script hack blox fruti
pointer operatorcheck command line input is a number in c what is covert channel
sqlserver insert with set identity-usr-bin-env: python-r: No such file or directory linear search program in c
Uri-beecrowd problem no - 1099 solution in Cc addition The fscanf and fprintf functions
function that reverses the content of an array of integers.how to search in a file in c Couldnt create temporary file to work with
WARNING: QA Issue: bgslibrary-dev rdepends on libopencv-imgproc, but it isnt a build dependency, missing opencv in DEPENDS or PACKAGECONFIG [build-deps]reading arrays from stdin c add a item to cart woocomerce with quantity
Using PostgreSQL array to store many-to-many relationship using sqlalchemylistas enlazadas- linked lists binary sorting
c how to include variables of other c filec strcat uri-beecrowd problem no - 1133 solution in C