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esp32/machine_adcblock: Add new machine.ADCBlock class and update ADC.

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Rework the ADC implementation to follow the improved ADC/ADCBlock API.
This adds support for calibrated voltage readings and the ADC2 block.  The
ADC API is backwards compatible with what it was before this change.

Resolves #6219.
This commit is contained in:
Jonathan Hogg
2021-12-21 15:15:24 +00:00
committed by Damien George
parent 3300d6d337
commit 63438a31bb
8 changed files with 414 additions and 129 deletions
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ports/esp32/modmachine.c
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@@ -297,6 +297,7 @@ STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_TouchPad), MP_ROM_PTR(&machine_touchpad_type) },
#endif
{ MP_ROM_QSTR(MP_QSTR_ADC), MP_ROM_PTR(&machine_adc_type) },
{ MP_ROM_QSTR(MP_QSTR_ADCBlock), MP_ROM_PTR(&machine_adcblock_type) },
#if MICROPY_PY_MACHINE_DAC
{ MP_ROM_QSTR(MP_QSTR_DAC), MP_ROM_PTR(&machine_dac_type) },
#endif