32 lines
951 B
C++
32 lines
951 B
C++
#include "max1227.h"
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#include <cstring>
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void max1227::prepareExternallyClockedSingleChannelRead(uint8_t *spiBuf, uint8_t channel,
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uint32_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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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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void max1227::prepareExternallyClockedTemperatureRead(uint8_t *spiBuf, size_t &sz) {
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spiBuf[0] = buildConvByte(ScanModes::N_ONCE, 0, true);
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std::memset(spiBuf + 1, 0, 24);
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sz += 25;
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}
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float max1227::getTemperature(uint16_t raw) {
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float temp = static_cast<float>((-2048 * (raw >> 11)) + (raw & 0x7FF)) * 0.125;
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return temp;
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}
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