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Reduce default LPC176x ADC lowpass filtering

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Chris Pepper 2019-07-25 00:40:51 +01:00 committed by GitHub
parent 1088846cae
commit b6095fd084
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Marlin/src/HAL/HAL_LPC1768/HAL.h
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@ -133,7 +133,7 @@ uint8_t spiRec(uint32_t chan);
// Memory usage per ADC channel (bytes): (6 * ADC_MEDIAN_FILTER_SIZE) + 16 // Memory usage per ADC channel (bytes): (6 * ADC_MEDIAN_FILTER_SIZE) + 16
// 8 * ((6 * 23) + 16 ) = 1232 Bytes for 8 channels // 8 * ((6 * 23) + 16 ) = 1232 Bytes for 8 channels
#define ADC_LOWPASS_K_VALUE (6) // Higher values increase rise time #define ADC_LOWPASS_K_VALUE (2) // Higher values increase rise time
// Rise time sample delays for 100% signal convergence on full range step // Rise time sample delays for 100% signal convergence on full range step
// (1 : 13, 2 : 32, 3 : 67, 4 : 139, 5 : 281, 6 : 565, 7 : 1135, 8 : 2273) // (1 : 13, 2 : 32, 3 : 67, 4 : 139, 5 : 281, 6 : 565, 7 : 1135, 8 : 2273)
// K = 6, 565 samples, 500Hz sample rate, 1.13s convergence on full range step // K = 6, 565 samples, 500Hz sample rate, 1.13s convergence on full range step