CpuReset

[Julspower]

Im trying to use the SENtral using rpi zero w
connected correctly I can read version and everything
but im I try to use it I get EM7180_EventStatus == 0x01

at start I do
wiringPiI2CWriteReg8(ni2cFD, EM7180_ResetRequest, 0x01);
while(wiringPiI2CReadReg8(ni2cFD, EM7180_ResetRequest) != 0x00)
QThread::msleep(250);
while(1)
n = wiringPiI2CReadReg8(ni2cFD, EM7180_EventStatus); // reading clears the register
I always read n at 0x01 when in the debugger any idea?

[kriswiner]

Nope, never use Raspberry pi. Does the SENtral produce data as expected? What does the RAM version say? is it reading the EEPROM?

…

On Sat, Jan 19, 2019 at 8:43 AM Julspower ***@***.***> wrote: Im trying to use the SENtral using rpi zero w connected correctly I can read version and everything but im I try to use it I get EM7180_EventStatus == 0x01 at start I do wiringPiI2CWriteReg8(ni2cFD, EM7180_ResetRequest, 0x01); while(wiringPiI2CReadReg8(ni2cFD, EM7180_ResetRequest) != 0x00) QThread::msleep(250); while(1) n = wiringPiI2CReadReg8(ni2cFD, EM7180_EventStatus); // reading clears the register I always read n at 0x01 when in the debugger any idea? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#47>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AGY1qiMvOunY0NDh1gewY2K4QOqkPTl7ks5vE0sqgaJpZM4aJODp> .

[Julspower]

The event status register never report quaterions data
I did not try to read the quat register (even if no new data is reported)
Ram version 1 and 2 are: 0xAE, 0x23

[kriswiner]

RAM version should be 0x17435 if the EEPROM is being properly read as here (scroll down): https://github.com/kriswiner/EM7180_SENtral_sensor_hub/wiki/C.-Managing-the-Configuration-File Do you see the EM7180 on the I2C bus at 0x28? Is it in normal (master) mode? It should read the EEPROM automatically in master mode and the code should wurey the ROM, RAM versions as well as the products and revision IDs to be sure of proper communication between HOST and EM7180 and between EM7180 and EEPROM.

…

On Sat, Jan 19, 2019 at 2:33 PM Julspower ***@***.***> wrote: The event status register never report quaterions data I did not try to read the quat register (even if no new data is reported) Ram version 1 and 2 are: 0xAE, 0x23 — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#47 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AGY1qtkfecNwKrQgQoWB6PlBRe3jHx9Qks5vE50pgaJpZM4aJODp> .

[Julspower]

Yes I see it at 0x28
the status bit tell me the eeprom has been loaded: EM7180_SentralStatus 0x01 != 0
I do set EM7180_HostControl to 0x01 and read it back to 0x01, but after the bit cpureset has been set it return to 0x00

cRam1 = wiringPiI2CReadReg8(ni2cFD, EM7180_RAMVersion1);
cRam2 = wiringPiI2CReadReg8(ni2cFD, EM7180_RAMVersion2);
//wait EEPROM
n = wiringPiI2CReadReg8(ni2cFD, EM7180_SentralStatus);
while((n & 0x01) == 0)
{
    QThread::msleep(250);
    n = wiringPiI2CReadReg8(ni2cFD, EM7180_SentralStatus);
}
cRam1 = wiringPiI2CReadReg8(ni2cFD, EM7180_RAMVersion1);
cRam2 = wiringPiI2CReadReg8(ni2cFD, EM7180_RAMVersion2);

here the first time I read cRam1 and 2 they are at 0
the second time I read 0xAE23

how could ram version be 0x17435 since its 2 bytes long?
ProductID = 0x80
RevisionID = 0x02
Could it be a wrong eeprom config?
EM7180_SentralStatus gets to 0x03 but I never have the 0x08 bit (initialized)

my I2C clock between host and SENtral is 400khz

Edit:
interesting fact: When I reset the SENtral with the resetrequest register and I wait 1.5Sec then read sentralstatus its at 0x0b
Then I set hostcontrol at 0 passthrucontrol at 0 then hostcontrol back to 0x01
now the sentralstatus is 0x03 even if I wait 1 minutes stays at 0x03

[kriswiner]

void USFS::getChipID() { // Read SENtral device information uint16_t ROM1 = _i2c_bus->readByte(EM7180_ADDRESS, EM7180_ROMVersion1); uint16_t ROM2 = _i2c_bus->readByte(EM7180_ADDRESS, EM7180_ROMVersion2); Serial.print("EM7180 ROM Version: 0x"); Serial.print(ROM1, HEX); Serial.println(ROM2, HEX); Serial.println("Should be: 0xE609"); uint16_t RAM1 = _i2c_bus->readByte(EM7180_ADDRESS, EM7180_RAMVersion1); uint16_t RAM2 = _i2c_bus->readByte(EM7180_ADDRESS, EM7180_RAMVersion2); Serial.print("EM7180 RAM Version: 0x"); Serial.print(RAM1); Serial.println(RAM2); uint8_t PID = _i2c_bus->readByte(EM7180_ADDRESS, EM7180_ProductID); Serial.print("EM7180 ProductID: 0x"); Serial.print(PID, HEX); Serial.println(" Should be: 0x80"); uint8_t RID = _i2c_bus->readByte(EM7180_ADDRESS, EM7180_RevisionID); Serial.print("EM7180 RevisionID: 0x"); Serial.print(RID, HEX); Serial.println(" Should be: 0x02"); } RAM versionhould return 17435 int which is AE23 hex, so all looks OK. Looks like you are having trouble with your I2C. Can you get some other I2C sensor to work?

…

On Sun, Jan 20, 2019 at 7:56 AM Julspower ***@***.***> wrote: Yes I see it at 0x28 the status bit tell me the eeprom has been loaded: EM7180_SentralStatus 0x01 != 0 I do set EM7180_HostControl to 0x01 and read it back to 0x01, but after the bit cpureset has been set it return to 0x00 ` cRam1 = wiringPiI2CReadReg8(ni2cFD, EM7180_RAMVersion1); cRam2 = wiringPiI2CReadReg8(ni2cFD, EM7180_RAMVersion2); //Attend l'EEPROM n = wiringPiI2CReadReg8(ni2cFD, EM7180_SentralStatus); while((n & 0x01) == 0) { QThread::msleep(250); n = wiringPiI2CReadReg8(ni2cFD, EM7180_SentralStatus); } cRam1 = wiringPiI2CReadReg8(ni2cFD, EM7180_RAMVersion1); cRam2 = wiringPiI2CReadReg8(ni2cFD, EM7180_RAMVersion2); ` here the first time I read cRam1 and 2 they are at 0 the second time I read 0xAE23 ProductID = 0x80 RevisionID = 0x02 Could it be a wrong eeprom config? my I2C clock between host and SENtral is 400khz — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#47 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AGY1qgLB1IVpkGNuzdH1iQ_emZ7Ss-Qjks5vFJGjgaJpZM4aJODp> .

[Julspower]

Found out that
This works
Must be my initialization that caused problem