TS-7970 ADC: Difference between revisions
From embeddedTS Manuals
(Altered the description of functionality a little bit to highlight the surprising notion that this ADC can't do voltage sensing.) |
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The TS-7970 includes 3 channels | The TS-7970 includes 3 ADC channels designed for 4-20 mA current loop measurements; they are not able be configured for direct voltage measurement. These channels are updated roughly twice per second. These are accessed using the tsmicroctl utility: | ||
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The other samples are the various voltages on the board. The | The other samples are the various voltages on the board. The current loop values measured by the ADC are "SILAB_P10", "SILAB_P11", and "SILAB_P12". Those are the raw ADC values whereas the channel names with "_UA" appended to them are the converted micro-amp reading of the current loop. | ||
Revision as of 15:43, 5 March 2019
The TS-7970 includes 3 ADC channels designed for 4-20 mA current loop measurements; they are not able be configured for direct voltage measurement. These channels are updated roughly twice per second. These are accessed using the tsmicroctl utility:
root@ts-imx6:# tsmicroctl --info VDD_ARM_CAP=1216 VDD_HIGH_CAP=2618 VDD_SOC_CAP=1246 VDD_ARM=1456 SILAB_P10=0x39B SILAB_P11=0x0 SILAB_P12=0x0 VIN=12241 V5_A=5207 V3P1=3276 DDR_1P5V=1571 V1P8=1894 V1P2=1262 RAM_VREF=783 V3P3=3543 SILABREV=1 SILAB_P10_UA=21472 SILAB_P11_UA=0 SILAB_P12_UA=0
The other samples are the various voltages on the board. The current loop values measured by the ADC are "SILAB_P10", "SILAB_P11", and "SILAB_P12". Those are the raw ADC values whereas the channel names with "_UA" appended to them are the converted micro-amp reading of the current loop.