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annotate rvinterf/etmsync/piradccal.c @ 1000:39a6090a052a

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doc/How-flash-really-works: article written
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 09 Dec 2023 09:08:19 +0000
parents 886f65760d09
children
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886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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2 * This module is linked into fc-tmsync and implements a command for
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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3 * retrieving Pirelli's VBAT ADC calibration.
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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4 */
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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5
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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6 #include <sys/types.h>
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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7 #include <stdio.h>
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
Mychaela Falconia <falcon@freecalypso.org>
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8 #include <stdlib.h>
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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9 #include <string.h>
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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10 #include <strings.h>
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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11 #include "localtypes.h"
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12 #include "exitcodes.h"
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13
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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14 get_pirelli_vbat_cal()
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15 {
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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16 u_char bytes[2];
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17 int a, b;
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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18 int rc;
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19
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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20 rc = do_memory_read(0x027F06E5, bytes, 2);
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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21 if (rc)
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22 return(rc);
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23 a = bytes[0] | (bytes[1] << 8);
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24 rc = do_memory_read(0x027F06F7, bytes, 2);
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25 if (rc)
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26 return(rc);
886f65760d09 fc-tmsync: added pirelli-vbat-cal command to read Pirelli's ADC calibration
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27 b = bytes[0] | (bytes[1] << 8);
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28 if (b >= 32768)
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29 b -= 65536;
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30 printf("A=%d B=%d\n", a, b);
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31 return(0);
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32 }