Robin Mueller
c06ef5d6b5
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29 lines
976 B
C++
29 lines
976 B
C++
#include "max1227.h"
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uint8_t max1227::buildConvByte(ScanModes scanMode, uint8_t channel, bool readTemp) {
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return (1 << 7) | (channel << 3) | (scanMode << 1) | readTemp;
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}
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uint8_t max1227::buildSetupByte(ClkSel clkSel, RefSel refSel, DiffSel diffSel) {
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return (1 << 6) | (clkSel << 4) | (refSel << 2) | diffSel;
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}
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void max1227::prepareExternallyClockedSingleChannelRead(uint8_t *spiBuf, uint8_t channel,
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size_t &sz) {
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spiBuf[0] = buildConvByte(ScanModes::N_ONCE, channel, false);
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spiBuf[1] = 0x00;
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spiBuf[2] = 0x00;
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sz = 3;
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}
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uint8_t max1227::buildResetByte(bool fifoOnly) { return (1 << 4) | (fifoOnly << 3); }
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void max1227::prepareExternallyClockedRead0ToN(uint8_t *spiBuf, uint8_t n, size_t &sz) {
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for (uint8_t idx = 0; idx <= n; idx++) {
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spiBuf[idx * 2] = buildConvByte(ScanModes::N_ONCE, idx, false);
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spiBuf[idx * 2 + 1] = 0x00;
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}
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spiBuf[(n + 1) * 2] = 0x00;
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sz = (n + 1) * 2 + 1;
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}
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