I'm glad to see in black and white, that no motion interrupt should work in LPM1 mode too. But it doesn't on my side. Part is not damaged, selftest passes. Could someone from Sensortec verify these settings for BMA280? 1. 0xB6 -> BGW_SOFTRESET 2. 0x04 -> INT_OUT_CTRL // int2_lvl to 0 (push-pull), int1_lvl level to 1 3. 0x0A -> INT_7 // 39.1mg slo_no_mot_th in 2g range 4. 0x38 -> INT_5 // 15s no-motion => interrupt 5. 0x07 -> INT_RST_LATCH // latched interrupt 6. 0x08 -> INT_MAP_2 // map int2_slo_no_mot to ACC_INT2 7. 0x0F -> INT_EN_2 // enable slo_no_mot_sel, slo_no_mot_en_z, slo_no_mot_en_y, slo_no_mot_en_x 8. 0x5E -> PMU_LPW // lowpower_en = 1, sleep_dur = 0b1111 (1s sleep) 9. 0x00 -> PMU_LOW_POWER // lowpower_mode = 0 (LPM1) 10. 0x87 -> INT_RST_LATCH // clear interrupt if any Without points 8. and 9. (NORMAL MODE, +130uA): a) BMA280 relaxes (still) => no-motion interrupt (ACC_INT2) fired after 15s ... OK b) BMA280 in motion => no-motion interrupt (ACC_INT2) within 60s ... OK, then BMA280 relaxes => no-motion interrupt fired in 75. second ... OK With points 8. and 9. (LPM1, power friendly): a) BMA280 relaxes (still) => no-motion interrupt fired (ACC_INT2) after 15s ... OK b) BMA280 in motion => no-motion interrupt fired (ACC_INT2) in 15. second ... KO Please help. Thanks
... View more