Mainline:Broadcom Kona/BCM590xx/ADC: Difference between revisions
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The last ADC channel, RTM, is reserved for RTM (Real-Time Measurment) mode. | The last ADC channel, RTM, is reserved for RTM (Real-Time Measurment) mode. | ||
The process for performing an RTM read is as follows: | |||
* In <code>ADCCTRL1</code>: (these can all be performed in one write) | |||
** Set the the <code>RTM_CONVERSION</code> bit to enable RTM mode | |||
** Write the channel number to read to the <code>RTM_CHAN</code> offset | |||
** Write the <code>RTM_START</code> bit to start the RTM read | |||
* Wait for the <code>ADC_RTM_DATA_READY</code> interrupt. | |||
* Perform a standard data read from the RTM ADC channel registers (see [[#Reading the data]]). | |||
* Clear the <code>RTM_CONVERSION</code> bit to disable RTM mode. | |||