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Updated limits for the gas sensor self test.

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This commit is contained in:
Kevin Goveas 2018-05-17 14:10:12 +02:00
parent b619094dfe
commit e6b9bbade9
2 changed files with 5 additions and 8 deletions
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9
Self test/bme680_selftest.c
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@ -40,8 +40,8 @@
* patent rights of the copyright holder.
*
* File bme680_selftest.c
* @date 10 Oct 2017
* @version 3.5.2
* @date 16 May 2018
* @version 3.5.3
*
*/
@ -172,13 +172,10 @@ static int8_t analyze_sensor_data(struct bme680_field_data *data, uint8_t n_meas
if (!(data[i].status & BME680_GASM_VALID_MSK))
self_test_failed++;
/* 3 cycles heating are completed(HT1/LT1, HT2/LT2,HT3/LT3)
centroid gas ratio = 2*HT3 / (LT2+LT3) < 0.5*/
/* Invert formula to get integer values for centroid resistance */
if (n_meas >= 6)
cent_res = (data[3].gas_resistance + data[5].gas_resistance) / (2 * data[4].gas_resistance);
if ((cent_res < 2)) /*cent_res^-1 < 0.5 */
if ((cent_res * 5) < 6)
self_test_failed++;
if (self_test_failed)

4
Self test/bme680_selftest.h
View File

@ -40,8 +40,8 @@
* patent rights of the copyright holder.
*
* @file bme680_selftest.h
* @date 10 Oct 2017
* @version 3.5.2
* @date 16 May 2018
* @version 3.5.3
* @brief
*
*/