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esp32s3 + c3 ADC (#5231)

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* save

* esp32s3: save

* adc

* worker on esp32s3

* worker after flash arduino

* save

* fix

* simple adc

* added adc

* esp32s3-adc: rm debug

* esp32s3-adc: clear

* last refactor

* linters

* esp32s3-adc: recover example

* esp32s3-adc: reuse fuse for esp32c3

* esp32s3-adc: refactor bugs

* esp32s3-adc: fix adc2 for esp32c3

* esp32s3-adc: group to adc files

* esp32s3-adc: revert changing board

* esp32s3-adc: recover example adc

* esp32s3-adc: fix edge values adc & added smoketests

* esp32s3-adc: rename methods

* esp32s3-adc: extends adc tests

* esp32s3-adc: drop debug

* esp32s3-adc: added ADCX const

* esp32s3-adc: change adc tests

* esp32s3-adc: added comment for esp32c3

* esp32s3-adc: drop debug empty loops

* esp32s3-adc: drop duplicate gpio

* esp32s3-adc: change return values to 0..65520
This commit is contained in:
Dima
2026-03-01 23:45:01 +02:00
committed by deadprogram
parent 3c590e36ad
commit 6bb6ea2432
7 changed files with 1123 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/machine/machine_esp32c3.go
+26 -11
View File
@@ -27,16 +27,29 @@ const (
PinInput
PinInputPullup
PinInputPulldown
PinAnalog
)
const (
GPIO0 Pin = 0
GPIO1 Pin = 1
GPIO2 Pin = 2
GPIO3 Pin = 3
GPIO4 Pin = 4
GPIO5 Pin = 5
GPIO6 Pin = 6
)
const (
ADC0 Pin = GPIO0
ADC1 Pin = GPIO1
ADC2 Pin = GPIO2
ADC3 Pin = GPIO3
ADC4 Pin = GPIO4
ADC5 Pin = GPIO5 // avoid when WiFi is used.
)
const (
GPIO0 Pin = 0
GPIO1 Pin = 1
GPIO2 Pin = 2
GPIO3 Pin = 3
GPIO4 Pin = 4
GPIO5 Pin = 5
GPIO6 Pin = 6
GPIO7 Pin = 7
GPIO8 Pin = 8
GPIO9 Pin = 9
@@ -76,13 +89,15 @@ func (p Pin) Configure(config PinConfig) {
const function = 1 // function 1 is GPIO for every pin
muxConfig |= function << esp.IO_MUX_GPIO_MCU_SEL_Pos
// Make this pin an input pin (always).
muxConfig |= esp.IO_MUX_GPIO_FUN_IE
// FUN_IE: disable for PinAnalog (high-Z for ADC)
if config.Mode != PinAnalog {
muxConfig |= esp.IO_MUX_GPIO_FUN_IE
}
// Set drive strength: 0 is lowest, 3 is highest.
muxConfig |= 2 << esp.IO_MUX_GPIO_FUN_DRV_Pos
// Select pull mode.
// Select pull mode (no pulls for PinAnalog).
if config.Mode == PinInputPullup {
muxConfig |= esp.IO_MUX_GPIO_FUN_WPU
} else if config.Mode == PinInputPulldown {
@@ -99,7 +114,7 @@ func (p Pin) Configure(config PinConfig) {
case PinOutput:
// Set the 'output enable' bit.
esp.GPIO.ENABLE_W1TS.Set(1 << p)
case PinInput, PinInputPullup, PinInputPulldown:
case PinInput, PinInputPullup, PinInputPulldown, PinAnalog:
// Clear the 'output enable' bit.
esp.GPIO.ENABLE_W1TC.Set(1 << p)
}