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Merged
deadprogram merged 5 commits into from
Feb 21, 2026
Merged

Esp32s3 i2c interface #5210

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e2c843e
esp32s3-i2c implement interface
dimajolkin Feb 17, 2026
07f2aaa
esp32s3-i2c: disable m5stamp_c3
dimajolkin Feb 19, 2026
40b24ed
added simple tests without Listen
dimajolkin Feb 20, 2026
0a56c61
replace smoke tests
dimajolkin Feb 21, 2026
7aa352a
esp32s3-i2c: fix allocation in tx
dimajolkin Feb 21, 2026
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6 changes: 6 additions & 0 deletions GNUmakefile
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Original file line number Diff line number Diff line change
Expand Up @@ -909,6 +909,8 @@ ifneq ($(XTENSA), 0)
@$(MD5SUM) test.bin
$(TINYGO) build -size short -o test.bin -target=esp32c3-supermini examples/blinky1
@$(MD5SUM) test.bin
$(TINYGO) build -size short -o test.bin -target=esp32c3-supermini examples/blinkm
@$(MD5SUM) test.bin
$(TINYGO) build -size short -o test.bin -target=nodemcu examples/blinky1
@$(MD5SUM) test.bin
$(TINYGO) build -size short -o test.bin -target m5stack-core2 examples/machinetest
Expand All @@ -923,10 +925,14 @@ ifneq ($(XTENSA), 0)
@$(MD5SUM) test.bin
$(TINYGO) build -size short -o test.bin -target=xiao-esp32s3 examples/blinky1
@$(MD5SUM) test.bin
$(TINYGO) build -size short -o test.bin -target=xiao-esp32s3 examples/blinkm
@$(MD5SUM) test.bin
$(TINYGO) build -size short -o test.bin -target=xiao-esp32s3 examples/mcp3008
@$(MD5SUM) test.bin
$(TINYGO) build -size short -o test.bin -target=esp32s3-wroom1 examples/mcp3008
@$(MD5SUM) test.bin
$(TINYGO) build -size short -o test.bin -target=esp32s3-wroom1 examples/blinkm
@$(MD5SUM) test.bin
endif
$(TINYGO) build -size short -o test.bin -target=esp-c3-32s-kit examples/blinky1
@$(MD5SUM) test.bin
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3 changes: 3 additions & 0 deletions src/machine/board_esp32s3-wroom1.go
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Expand Up @@ -3,6 +3,9 @@
package machine

const (
SCL_PIN = GPIO17
SDA_PIN = GPIO18

SPI1_SCK_PIN = GPIO12 // SCK
SPI1_MOSI_PIN = GPIO11 // SDO (MOSI)
SPI1_MISO_PIN = GPIO13 // SDI (MISO)
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2 changes: 1 addition & 1 deletion src/machine/i2c.go
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
//go:build !baremetal || atmega || nrf || sam || stm32 || fe310 || k210 || rp2040 || rp2350 || mimxrt1062 || (esp32c3 && !m5stamp_c3) || esp32
//go:build !baremetal || atmega || nrf || sam || stm32 || fe310 || k210 || rp2040 || rp2350 || mimxrt1062 || (esp32c3 && !m5stamp_c3) || esp32 || esp32s3

package machine

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15 changes: 15 additions & 0 deletions src/machine/machine_esp32c3.go
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Expand Up @@ -105,6 +105,21 @@ func (p Pin) Configure(config PinConfig) {
}
}

// configure is the same as Configure, but allows setting a specific GPIO matrix signal.
func (p Pin) configure(config PinConfig, signal uint32) {
p.Configure(config)
if signal == 256 {
return
}
if config.Mode == PinOutput {
p.outFunc().Set(signal)
} else {
inFunc(signal).Set(esp.GPIO_FUNC_IN_SEL_CFG_SEL | uint32(p))
}
}

func initI2CExt1Clock() {}

// outFunc returns the FUNCx_OUT_SEL_CFG register used for configuring the
// output function selection.
func (p Pin) outFunc() *volatile.Register32 {
Expand Down
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