void SwitchOffCurrentSource(int channel)
{
if (channel == 0) {
imx233_wr(HW_LRADC_CTRL2_CLR, LRADC_CTRL2_TEMP_SENSOR_IENABLE0); //set TEMP_SENSOR_IENABLE0=0
} else if (channel == 1) {
imx233_wr(HW_LRADC_CTRL2_CLR, LRADC_CTRL2_TEMP_SENSOR_IENABLE1); //set TEMP_SENSOR_IENABLE1=0
}
}
int main(int argc, char **argv) {
// If the name of the offset ends in CLR, the bits that are hi will be set to 0.
// If the name of the offset ends in SET, the bits that are hi will be set to 1.
// If the name of the offset ends in TOG, the bits that are hi will be toggled.
// Change the function of the processor pins
imx233_wr(HW_PINCTRL_MUXSEL0_SET, 0x00000300);
// Enable the GPIO output
imx233_wr(HW_PINCTRL_DOE0_SET, 0x00000010);
// Enable the GPIO output
imx233_wr(HW_PINCTRL_DOUT0_CLR, 0x00000010);
usleep(1000);
imx233_wr(HW_PINCTRL_DOUT0_SET, 0x00000010);
}
void SetUpCurrentSource(int channel, unsigned current_ua)
{
if (current_ua > 300) return;
int isrc_val = current_ua / 20;
if (channel == 0) {
imx233_wr(HW_LRADC_CTRL2_CLR, LRADC_CTRL2_TEMP_ISRC_MASK
<< LRADC_CTRL2_TEMP_ISRC0_OFFSET); //clear TEMP_ISRC0
imx233_wr(HW_LRADC_CTRL2_SET, isrc_val << LRADC_CTRL2_TEMP_ISRC0_OFFSET
| LRADC_CTRL2_TEMP_SENSOR_IENABLE0);
} else if (channel == 1) {
imx233_wr(HW_LRADC_CTRL2_CLR, LRADC_CTRL2_TEMP_ISRC_MASK
<< LRADC_CTRL2_TEMP_ISRC1_OFFSET); //clear TEMP_ISRC1
imx233_wr(HW_LRADC_CTRL2_SET, isrc_val << LRADC_CTRL2_TEMP_ISRC1_OFFSET
| LRADC_CTRL2_TEMP_SENSOR_IENABLE1);
}
}
