git.gag.com Git - fw/altos/blob - src/drivers/ao_ads1256.h

   1 /*
   2  * Copyright © 2019 Bdale Garbee <bdale@gag.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  */
  14
  15 #ifndef _AO_ADS1256_H_
  16 #define _AO_ADS1256_H_
  17
  18 /* commands */
  19 #define AO_ADS1256_WAKEUP               0x00
  20 #define AO_ADS1256_RDATA                0x01
  21 #define AO_ADS1256_RDATAC               0x03
  22 #define AO_ADS1256_SDATAC               0x0f
  23 #define AO_ADS1256_RREG                 0x10
  24 #define AO_ADS1256_WREG                 0x50
  25 #define AO_ADS1256_SELFCAL              0xf0
  26 #define AO_ADS1256_SELFOCAL             0xf1
  27 #define AO_ADS1256_SELFGCAL             0xf2
  28 #define AO_ADS1256_SYSOCAL              0xf3
  29 #define AO_ADS1256_SYSGCAL              0xf4
  30 #define AO_ADS1256_SYNC                 0xfc
  31 #define AO_ADS1256_STANDBY              0xfd
  32 #define AO_ADS1256_RESET                0xfe
  33 #define AO_ADS1256_WAKEUP2              0xff
  34
  35 /* register map */
  36 #define AO_ADS1256_STATUS       0x00
  37 #define AO_ADS1256_MUX          0x01
  38 #define AO_ADS1256_ADCON        0x02
  39 #define AO_ADS1256_DRATE        0x03
  40 #define AO_ADS1256_IO           0x04
  41 #define AO_ADS1256_OFC0         0x05
  42 #define AO_ADS1256_OFC1         0x06
  43 #define AO_ADS1256_OFC2         0x07
  44 #define AO_ADS1256_FSC0         0x08
  45 #define AO_ADS1256_FSC1         0x09
  46 #define AO_ADS1256_FSC2         0x0a
  47
  48 struct ao_ads1256_sample {
  49         int32_t ain[AO_ADS1256_CHANNELS];
  50 };
  51
  52 extern struct ao_ads1256_sample ao_ads1256_current;
  53
  54 void
  55 ao_ads1256_init(void);
  56
  57 #endif /* _AO_ADS1256_H_ */