From 8c22c1a3b78b55c304437704e875990bc590ed31 Mon Sep 17 00:00:00 2001
From: deadprogram <ron@hybridgroup.com>
Date: Mon, 16 Mar 2026 17:35:53 +0100
Subject: [PATCH] feature: add support for ESP32-C5

Signed-off-by: deadprogram <ron@hybridgroup.com>
---
 README.md                        |  1 +
 pkg/espflasher/chip.go           |  4 +++
 pkg/espflasher/target_esp32c5.go | 42 ++++++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+)
 create mode 100644 pkg/espflasher/target_esp32c5.go

diff --git a/README.md b/README.md
index de78816..b523bb5 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ A Go command-line tool and library for flashing firmware to Espressif ESP8266 an
 - ESP32-S3
 - ESP32-C2 (ESP8684)
 - ESP32-C3
+- ESP32-C5
 - ESP32-C6
 - ESP32-H2
 
diff --git a/pkg/espflasher/chip.go b/pkg/espflasher/chip.go
index d96b34b..83b3115 100644
--- a/pkg/espflasher/chip.go
+++ b/pkg/espflasher/chip.go
@@ -12,6 +12,7 @@ const (
 	ChipESP32S3
 	ChipESP32C2
 	ChipESP32C3
+	ChipESP32C5
 	ChipESP32C6
 	ChipESP32H2
 	ChipAuto // Auto-detect chip type
@@ -32,6 +33,8 @@ func (c ChipType) String() string {
 		return "ESP32-C2"
 	case ChipESP32C3:
 		return "ESP32-C3"
+	case ChipESP32C5:
+		return "ESP32-C5"
 	case ChipESP32C6:
 		return "ESP32-C6"
 	case ChipESP32H2:
@@ -125,6 +128,7 @@ var chipDefs = map[ChipType]*chipDef{
 	ChipESP32S3: defESP32S3,
 	ChipESP32C2: defESP32C2,
 	ChipESP32C3: defESP32C3,
+	ChipESP32C5: defESP32C5,
 	ChipESP32C6: defESP32C6,
 	ChipESP32H2: defESP32H2,
 }
diff --git a/pkg/espflasher/target_esp32c5.go b/pkg/espflasher/target_esp32c5.go
new file mode 100644
index 0000000..8db444e
--- /dev/null
+++ b/pkg/espflasher/target_esp32c5.go
@@ -0,0 +1,42 @@
+package espflasher
+
+// ESP32-C5 target definition.
+// Reference: https://github.com/espressif/esptool/blob/master/esptool/targets/esp32c5.py
+
+var defESP32C5 = &chipDef{
+	ChipType:       ChipESP32C5,
+	Name:           "ESP32-C5",
+	ImageChipID:    23,
+	UsesMagicValue: false, // Uses chip ID
+
+	SPIRegBase:  0x60003000,
+	SPIUSROffs:  0x18,
+	SPIUSR1Offs: 0x1C,
+	SPIUSR2Offs: 0x20,
+	SPIMOSIOffs: 0x24,
+	SPIMISOOffs: 0x98,
+	SPIW0Offs:   0x58,
+
+	SPIMISODLenOffs: 0x28,
+	SPIMOSIDLenOffs: 0x24,
+
+	SPIAddrRegMSB: true,
+
+	UARTDateReg: 0x60000078,
+	UARTClkDiv:  0x60000014,
+	XTALClkDiv:  1,
+
+	BootloaderFlashOffset: 0x2000,
+
+	SupportsEncryptedFlash: true,
+	ROMHasCompressedFlash:  true,
+	ROMHasChangeBaud:       true,
+
+	FlashFrequency: map[string]byte{
+		"80m": 0xF,
+		"40m": 0x0,
+		"20m": 0x2,
+	},
+
+	FlashSizes: defaultFlashSizes(),
+}