I set the driver.
First I config the registers
//1.Use basic sine mode - default
reg_val = 0;
DRV8308_WriteRegister(DRV8308_REG03, reg_val);
//2.Set the FG select to use the TACH input signal + Clock PWM mode
reg_val = (0x01<<4) | (0x03<<2);
DRV8308_WriteRegister(DRV8308_REG00, reg_val);
Then I set halls according to the table - state 3
if (dir == 0)
{
HALLU_HI;
HALLV_LO;
HALLW_HI;
}
else if (dir == 1)
{
HALLU_LO;
HALLV_HI;
HALLW_LO;
}
Then I set pins
DIR = 0
ENABLE = 1
And finaly I apply PWM (16khz) to CLKIN and FGINN/TACH pins.
According to the table I should see
UHSG = PWM
ULSG = 0
VHSG = 0
VLSG = 1
WHSG = 0
WLSG = 0
But I see all 0 and only VHSG I see weird signal - amplitude 1 volt, pulse width 5ns,
period between pulses 5ms.
What should I do to fix the problem?
