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comparison rvinterf/etmsync/piradccal.c @ 323:886f65760d09

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fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 18 Dec 2017 21:00:46 +0000
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322:ee6443191465 323:886f65760d09
1 /*
2 * This module is linked into fc-tmsync and implements a command for
3 * retrieving Pirelli's VBAT ADC calibration.
4 */
5
6 #include <sys/types.h>
7 #include <stdio.h>
8 #include <stdlib.h>
9 #include <string.h>
10 #include <strings.h>
11 #include "localtypes.h"
12 #include "exitcodes.h"
13
14 get_pirelli_vbat_cal()
15 {
16 u_char bytes[2];
17 int a, b;
18 int rc;
19
20 rc = do_memory_read(0x027F06E5, bytes, 2);
21 if (rc)
22 return(rc);
23 a = bytes[0] | (bytes[1] << 8);
24 rc = do_memory_read(0x027F06F7, bytes, 2);
25 if (rc)
26 return(rc);
27 b = bytes[0] | (bytes[1] << 8);
28 if (b >= 32768)
29 b -= 65536;
30 printf("A=%d B=%d\n", a, b);
31 return(0);
32 }