Datasheet > EM7180SFP01B

EM7180SFP01B

更新时间： 2022-02-26 13:08:18

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EMMICRO		/
页数	文件大小	规格书
18页	1158K
描述
Ultra Low Power Sensor Fusion Platform

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EM7180SFP01B 数据手册

EM7180SFP

Fig. 5 SENtral Operational States

2.2. Power-Up and Configuration File Upload

After powering up or issuing a ResetReq command, SENtral automatically initializes the registers, and then uploads

Configuration file from an EEPROM on the sensor bus, as indicated in Fig. 4. SENtral sets Host_int interrupt pin high when the

upload is completed (signal is cleared after enabling Normal Operation or setting ResetReq).

Host MCU should check result of EEPROM upload by reading SentralStatus register (see Table 5). Correct configuration file

upload completion is indicated by value 0x0B in SentralStatus register (EEPROM detected, EEUploadDone and Idle bits are

set). If the upload was successful the Host can enter Normal Operation (as described in section “Normal Operation”).

SentralStatus

ResetReq

Address

0x37

[0] EEPROM. 1 = EEPROM detected

[1] EEUploadDone. 1 = EEPROM upload completed

[2] EEUploadError. 1 = Calculated CRC of EEPROM is correct.

Only valid when EEUploadDone = 1.

[3] Idle. 1 = Device in Upload Error or Initialized state.

[4] NoEEPROM. 1 = No EEPROM detected.

0x9B

[0] ResetRequest. 1 = Emulate a hard power down/power up.

Table 5 Configuration File Upload from EEPROM Registers

Error during upload is indicated either by value 0x18 (No EEPROM and Idle bits are set) or value 0x0D (EEPROM detected,

EEUploadError and Idle bits are set).

If the Configuration File upload failed, try the following:



Send a Reset command by writing 0x01 to the ResetReq register. This would retry the initialization process.

Download the Configuration File from the EEPROM and verify its integrity, as discussed in Section “Updating the on-

board EEPROM”



Reload the Configuration File from the host into the EEPROM.

www.emmicroelectronic.com

7180SFP-DS Version 1.1, 10-Dec-14

420005-A01, 2.0

1 2 3 456 7 8...18

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