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https://github.com/slsdetectorgroup/slsDetectorPackage.git
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Separate headers (#57)
* WIP, ctb * WIP, eiger * WIP, gotthard * WIP, jungfrau * WIP, gotthard2 * WIP, mythen3 * WIP, moench * fixed gotthard apiversioning mismatch with gotthard2
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80
slsDetectorServers/slsDetectorServer/src/MAX1932.c
Executable file
80
slsDetectorServers/slsDetectorServer/src/MAX1932.c
Executable file
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#include "MAX1932.h"
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#include "commonServerFunctions.h" // blackfin.h, ansi.h
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#include "blackfin.h"
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#include "clogger.h"
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#include "common.h"
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#include "sls_detector_defs.h"
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/* MAX1932 HV DEFINES */
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#define MAX1932_HV_NUMBITS (8)
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#define MAX1932_HV_DATA_OFST (0)
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#define MAX1932_HV_DATA_MSK (0x000000FF << MAX1932_HV_DATA_OFST)
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// higher voltage requires lower dac value, 0 is off
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#define MAX1932_MIN_DAC_VAL (0xFF)
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#define MAX1932_MAX_DAC_VAL (0x1)
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#define MAX1932_POWER_OFF_DAC_VAL (0x0)
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// defines from the fpga
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uint32_t MAX1932_Reg = 0x0;
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uint32_t MAX1932_CsMask = 0x0;
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uint32_t MAX1932_ClkMask = 0x0;
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uint32_t MAX1932_DigMask = 0x0;
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int MAX1932_DigOffset = 0x0;
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int MAX1932_MinVoltage = 0;
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int MAX1932_MaxVoltage = 0;
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void MAX1932_SetDefines(uint32_t reg, uint32_t cmsk, uint32_t clkmsk, uint32_t dmsk, int dofst,
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int minMV, int maxMV) {
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FILE_LOG(logINFOBLUE, ("Configuring High Voltage\n"));
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MAX1932_Reg = reg;
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MAX1932_CsMask = cmsk;
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MAX1932_ClkMask = clkmsk;
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MAX1932_DigMask = dmsk;
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MAX1932_DigOffset = dofst;
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MAX1932_MinVoltage = minMV;
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MAX1932_MaxVoltage = maxMV;
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}
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void MAX1932_Disable() {
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bus_w(MAX1932_Reg, (bus_r(MAX1932_Reg)
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| MAX1932_CsMask
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| MAX1932_ClkMask)
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& ~(MAX1932_DigMask));
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}
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int MAX1932_Set (int val) {
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FILE_LOG(logDEBUG1, ("Setting high voltage to %d\n", val));
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if (val < 0)
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return FAIL;
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int dacvalue = 0;
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// limit values (normally < 60 => 0 (off))
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if (val < MAX1932_MinVoltage) {
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dacvalue = MAX1932_POWER_OFF_DAC_VAL;
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val = 0;
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}
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// limit values (normally > 200 => 0x1 (max))
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else if (val > MAX1932_MaxVoltage) {
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dacvalue = MAX1932_MAX_DAC_VAL;
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val = MAX1932_MaxVoltage;
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}
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// convert value
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else {
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// no failure in conversion as limits handled (range from 0x1 to 0xFF)
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ConvertToDifferentRange(MAX1932_MinVoltage, MAX1932_MaxVoltage,
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MAX1932_MIN_DAC_VAL, MAX1932_MAX_DAC_VAL,
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val, &dacvalue);
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dacvalue &= MAX1932_HV_DATA_MSK;
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}
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FILE_LOG(logINFO, ("\t%dV (dacval %d)\n", val, dacvalue));
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serializeToSPI(MAX1932_Reg, dacvalue, MAX1932_CsMask, MAX1932_HV_NUMBITS,
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MAX1932_ClkMask, MAX1932_DigMask, MAX1932_DigOffset, 0);
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return OK;
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}
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