void Check_Boot()
{
if(Bootloader_En_Read() == 0)
{
Bootloadable_Load();
}
}
/*******************************************************************************
* Function Name: void processButtons( void )
********************************************************************************
*
* Summary:
* This function looks at the state of each mechanical button and sets the I2C
* register bits appropriatly.
*
* It also looks for bootloader entry which required both buttons held down while
* the POT is moved by more than 1V.
*******************************************************************************/
void processButtons(void)
{
/* Set min at 3.3 and max at 0.0 to guarantee they are beyond the actual range */
static float32 potMin = 3.3;
static float32 potMax = 0.0;
/* Read and update mechanical button state */
if(MB1_Read() == PRESSED)
{
LocData.buttonVal |= (BVAL_MB1_MASK);
}
else
{
LocData.buttonVal &= (~BVAL_MB1_MASK);
}
if(MB2_Read() == PRESSED)
{
LocData.buttonVal |= (BVAL_MB2_MASK);
}
else
{
LocData.buttonVal &= (~BVAL_MB2_MASK);
}
/* Update CapSense buttons if set to base board control */
if(capLedBase == true)
{
CBLED0_Write(!(LocData.ledVal & BVAL_B0_MASK));
CBLED1_Write(!(LocData.ledVal & BVAL_B1_MASK));
CBLED2_Write(!(LocData.ledVal & BVAL_B2_MASK));
CBLED3_Write(!(LocData.ledVal & BVAL_B3_MASK));
}
/* Look for bootloader entry - both mechanical buttons held down and
POT rotated at least 1V */
if((MB1_Read() == PRESSED) && (MB2_Read() == PRESSED))
{
/* Check pot reading compared to stored min/max */
if(LocData.potVal < potMin)
{
potMin = LocData.potVal;
}
if(LocData.potVal > potMax)
{
potMax = LocData.potVal;
}
if((potMax - potMin) > 1.0) /* Pot moved more than 1V, time to bootload */
{
Bootloadable_Load();
}
}
else /* Buttons not both pressed - reset POT range values */
{
potMin = 3.3;
potMax = 0.0;
}
}
