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a0a779faba
* Minor doc updates * pydoc * Draft tip selection menu * Start linking in manual tip resistance * Enable on Pinecilv1 / TS10x * Fixup drawing tip type * Update Settings.cpp * Rename JBC type * Add translations * Handle one tip type * Refactor header includes * Fixup translation_IT.json * Fixing up includes * Format * Apply suggestions from code review Co-authored-by: discip <53649486+discip@users.noreply.github.com> * Update Documentation/Hardware.md Co-authored-by: discip <53649486+discip@users.noreply.github.com> --------- Co-authored-by: = <=> Co-authored-by: discip <53649486+discip@users.noreply.github.com>
39 lines
1.6 KiB
C++
39 lines
1.6 KiB
C++
/*
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* Utils.cpp
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*
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* Created on: 28 Apr 2021
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* Author: Ralim
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*/
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#include "BSP_Power.h"
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#include "Settings.h"
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#include "configuration.h"
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#include <Utils.h>
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int32_t Utils::InterpolateLookupTable(const int32_t *lookupTable, const int noItems, const int32_t value) {
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for (int i = 1; i < (noItems - 1); i++) {
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// If current tip temp is less than current lookup, then this current lookup is the higher point to interpolate
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if (value < lookupTable[i * 2]) {
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return LinearInterpolate(lookupTable[(i - 1) * 2], lookupTable[((i - 1) * 2) + 1], lookupTable[i * 2], lookupTable[(i * 2) + 1], value);
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}
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}
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return LinearInterpolate(lookupTable[(noItems - 2) * 2], lookupTable[((noItems - 2) * 2) + 1], lookupTable[(noItems - 1) * 2], lookupTable[((noItems - 1) * 2) + 1], value);
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}
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int32_t Utils::LinearInterpolate(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t x) { return y1 + (((((x - x1) * 1000) / (x2 - x1)) * (y2 - y1))) / 1000; }
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uint16_t Utils::RequiredCurrentForTipAtVoltage(uint16_t voltageX10) {
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uint8_t tipResistancex10 = getTipResistanceX10();
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if (getSettingValue(SettingsOptions::USBPDMode) == usbpdMode_t::DEFAULT) {
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tipResistancex10 += 5;
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}
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#ifdef MODEL_HAS_DCDC
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// If this device has step down DC/DC inductor to smooth out current spikes
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// We can instead ignore resistance and go for max voltage we can accept; and rely on the DC/DC regulation to keep under current limit
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tipResistancex10 = 255; // (Push to 25.5 ohms to effectively disable this check)
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#endif
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// V/R = I
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uint16_t currentX10 = (voltageX10 * 10) / tipResistancex10;
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return currentX10;
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}
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