Posted on November 07, 2013 at 23:27 Hi,
this is my configuration,
I am not using an STM32 but I mounted 3 of these devices and they work fine. I have huge problems with the magnetometer in 8 and 12 gauss range and to me this device is not saturating with 12 gauss of magnetic field applied and is starting to behave bad sending weird magnetometer data Data coming out are without any sense. Even with 2 and 4 gauss range after a region the magnetometer is saturated it starts to send weird data when the magnets gets close. The only way to have it working is to use 2 or 4 gauss range ... that is not the way I am intended to use it: :(
void lsm9ds0_XM_init(){
P1_1 = LOW;
U1TX_BYTE = 0;
U1DBUF = CTRL_REG1_XM;
while (!U1TX_BYTE);
U1TX_BYTE = 0;
U1DBUF = (ACC_400_Hz_A | xyz_en_A);
while (!U1TX_BYTE);
U1TX_BYTE = 0;
P1_1 = HIGH;
halMcuWaitUs(10);
P1_1 = LOW;
U1TX_BYTE = 0;
U1DBUF = CTRL_REG5_XM;
while (!U1TX_BYTE);
U1TX_BYTE = 0;
U1DBUF = (M_HRES | M_0DR_100);
while (!U1TX_BYTE);
U1TX_BYTE = 0;
P1_1 = HIGH;
halMcuWaitUs(10);
P1_1 = LOW;
U1TX_BYTE = 0;
U1DBUF = CTRL_REG6_XM;
while (!U1TX_BYTE);
U1TX_BYTE = 0;
U1DBUF = (M_FS_2); // 2 Gauss Range
while (!U1TX_BYTE);
U1TX_BYTE = 0;
P1_1 = HIGH;
halMcuWaitUs(10);
P1_1 = LOW;
U1TX_BYTE = 0;
U1DBUF = CTRL_REG7_XM;
while (!U1TX_BYTE);
U1TX_BYTE = 0;
U1DBUF = (M_CONV_CONT);
while (!U1TX_BYTE);
U1TX_BYTE = 0;
P1_1 = HIGH;
}
You can find the settings in this part I just copied here from my attached header file
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Attachments : lsm9ds0.h :
https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HzJn&d=%2Fa%2F0X0000000bJi%2FVCwhmQHMEHIKqpq4RugE5d3YXd1DP_FENUr9TM5Ijsw&asPdf=false
