src/main/target/YUPIF4/hardware_revision.c

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <stdbool.h>
  22 #include <stdint.h>
  23 #include <stdlib.h>
  24
  25 #include "platform.h"
  26
  27 #include "build/build_config.h"
  28
  29 #include "drivers/io.h"
  30 #include "drivers/time.h"
  31
  32 #include "hardware_revision.h"
  33
  34 uint8_t hardwareRevision = UNKNOWN;
  35
  36 void detectHardwareRevision(void)
  37 {
  38     IO_t pin1 = IOGetByTag(IO_TAG(PC13));
  39     IOInit(pin1, OWNER_SYSTEM, 1);
  40     IOConfigGPIO(pin1, IOCFG_IPU);
  41
  42     IO_t pin2 = IOGetByTag(IO_TAG(PC14));
  43     IOInit(pin2, OWNER_SYSTEM, 1);
  44     IOConfigGPIO(pin2, IOCFG_IPU);
  45
  46     IO_t pin3 = IOGetByTag(IO_TAG(PC15));
  47     IOInit(pin3, OWNER_SYSTEM, 1);
  48     IOConfigGPIO(pin3, IOCFG_IPU);
  49
  50     // Check hardware revision
  51     delayMicroseconds(10);  // allow configuration to settle
  52
  53     /*
  54         Hardware pins : Pin1 = PC13 / Pin2 = PC14 / Pin3 = PC15
  55         no Hardware pins tied to ground => Race V1
  56         if Pin 1 is the only one tied to ground => Mini
  57         if Pin 2 is the only one tied to ground => Race V2
  58         if Pin 2 and Pin 1 are tied to ground => Race V3
  59         if Pin 3 is the only one tied to ground => Navigation
  60         Other combinations available for potential evolutions
  61     */
  62     if (!IORead(pin1) && IORead(pin2)) {
  63         hardwareRevision = YUPIF4_MINI;
  64     } else if (IORead(pin1) && !IORead(pin2)) {
  65         hardwareRevision = YUPIF4_RACE2;
  66     } else if (!IORead(pin1) && !IORead(pin2)) {
  67         hardwareRevision = YUPIF4_RACE3;
  68     } else if (!IORead(pin3)) {
  69         hardwareRevision = YUPIF4_NAV;
  70     } else {
  71         hardwareRevision = YUPIF4_RACE1;
  72     }
  73 }
  74
  75 void updateHardwareRevision(void) {
  76 }