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ADIS16488/PCBZ データシート(PDF) 18 Page - Analog Devices |
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ADIS16488/PCBZ データシート(HTML) 18 Page - Analog Devices |
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18 / 36 page  ADIS16488 Data Sheet Rev. B | Page 18 of 36 STATUS/ALARM INDICATORS The SYS_E_FLAG register in Table 47 provides the system error flags and new data bits for the magnetometer and barometer outputs. The new data flags are useful for triggering data collec- tion of the magnetometer and barometer (x_MAGN_OUT and BARO_xxx registers) because they update at a fixed rate that is not dependent on the DEC_RATE setting. Note that reading SYS_E_FLAG also resets it to 0x0000. Table 47. SYS_E_FLAG (Page 0, Base Address = 0x08) Bits Description (Default = 0x0000) [15] Watch dog timer flag (1 = timed out) [14:10] Not used 9 New data flag, barometer (1 = new, unread data)1 8 New data flag, magnetometer (1 = new, unread data)2 7 Processing overrun (1 = error) 6 Flash memory update, result of GLOB_CMD[3] = 1 (1 = failed update, 0 = update successful) 5 Inertial self-test failure (1 = DIAG_STS ≠ 0x0000) 4 Sensor overrange (1 = at least one sensor overranged) 3 SPI communication error (1 = error condition, when the number of SCLK pulses is not equal to a multiple of 16) [2:1] Not used 0 Alarm status flag (1 = ALM_STS ≠ 0x0000) 1 This flag restores to zero after reading the contents on BAROM_OUT. 2 This flag restores to zero after reading one x_MAGN_OUT register. The DIAG_STS register in Table 48 provides the flags for the internal self-test function, which is from GLOB_CMD[1] (see Table 114). Note that the barometer’s flag, DIAG_STS[11], only updates after start-up and reset operations. Note that reading DIAG_STS also resets it to 0x0000. Table 48. DIAG_STS (Page 0, Base Address = 0x0A) Bits Description (Default = 0x0000) [15:12] Not used 11 Self-test failure, barometer (1 = failed at start-up) 10 Self-test failure, Z-axis magnetometer (1 = failure) 9 Self-test failure, Y-axis magnetometer (1 = failure) 8 Self-test failure, X-axis magnetometer (1 = failure) [7:6] Not used 5 Self-test failure, Z-axis accelerometer (1 = failure) 4 Self-test failure, Y-axis accelerometer (1 = failure) 3 Self-test failure, X-axis accelerometer (1 = failure) 2 Self-test failure, Z-axis gyroscope (1 = failure) 1 Self-test failure, Y-axis gyroscope (1 = failure) 0 Self-test failure, X-axis gyroscope (1 = failure) The ALM_STS register in Table 49 provides the alarm bits for the programmable alarm levels of each sensor. Note that reading ALM_STS also resets it to 0x0000. Table 49. ALM_STS (Page 0, Base Address = 0x0C) Bits Description (Default = 0x0000) [15:12] Not used 11 Barometer alarm flag (1 = alarm is active) 10 Z-axis magnetometer alarm flag (1 = alarm is active) 9 Y-axis magnetometer alarm flag (1 = alarm is active) 8 X-axis magnetometer alarm flag (1 = alarm is active) [7:6] Not used 5 Z-axis accelerometer alarm flag (1 = alarm is active) 4 Y-axis accelerometer alarm flag (1 = alarm is active) 3 X-axis accelerometer alarm flag (1 = alarm is active) 2 Z-axis gyroscope alarm flag (1 = alarm is active) 1 Y-axis gyroscope alarm flag (1 = alarm is active) 0 X-axis gyroscope alarm flag (1 = alarm is active) |
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