![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
le programme de est du lidar
Dependencies: mbed
Revision 0:2ba98068bc41, committed 2018-09-09
- Comitter:
- GaspardD
- Date:
- Sun Sep 09 12:55:53 2018 +0000
- Commit message:
- pour omar
Changed in this revision
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sun Sep 09 12:55:53 2018 +0000 @@ -0,0 +1,39 @@ +#include "mbed.h" + +Serial pc(USBTX, USBRX); // tx, rx +Serial device(A4,A5); // tx, rx + +int dist;// LiDAR actually measured distance value +int strength;// LiDAR signal strength +int check;// check numerical value storage +int i; +int uart[9];// store data measured by LiDAR +const int HEADER=0x59;// data package frame header + +int main() +{ + pc.baud(115200); + device.baud(115200); + int i=0; + pc.printf("Hello \n"); + while(1) { + if (device.readable()) { //check whether the serial port has data input + if(device.getc()==HEADER) { // determine data package frame header 0x59 + uart[0]=HEADER; + if(device.getc()==HEADER) { //determine data package frame header 0x59 + uart[1]=HEADER; + for(i=2; i<9; i++) { // store data to array + uart[i]=device.getc(); + } + check=uart[0]+uart[1]+uart[2]+uart[3]+uart[4]+uart[5]+uart[6]+uart[7]; + if(uart[8]==(check&0xff)) { // check the received data as per protocols + dist=uart[2]+uart[3]*256;// calculate distance value + strength=uart[4]+uart[5]*256;// calculate signal strength value + pc.printf("\rdist = %d strength = %d ",dist,strength);// output signal strength value + } + } + } + } + } +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Sep 09 12:55:53 2018 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/a7c7b631e539 \ No newline at end of file