ardupilot/libraries/SITL/SIM_RF_GYUS42v2.cpp

44 lines
1.2 KiB
C++

/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
Simulator for the GYUS42v2 Serial rangefinder
*/
#include "SIM_RF_GYUS42v2.h"
#include <stdio.h>
#include <string.h>
using namespace SITL;
uint32_t RF_GYUS42v2::packet_for_alt(uint16_t alt_cm, uint8_t *buffer, uint8_t buflen)
{
if (buflen < 7) {
return 0;
}
buffer[0] = 0x5A;
buffer[1] = 0; // FIXME
buffer[2] = 0; // FIXME
buffer[3] = 0; // FIXME
buffer[4] = alt_cm >> 8;
buffer[5] = alt_cm & 0xFF;
buffer[6] = 0;
for (uint8_t i=0; i<6; i++) {
buffer[6] += buffer[i];
}
return 7;
}