esp-rs · bjoernQ · Nov 19, 2025 · Nov 19, 2025 · Nov 19, 2025 · Nov 19, 2025
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -8,14 +8,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Added
+- `read_efuse_le` should be preferred over `read_efuse` (#969)
 
 - A new CLI argument `rom-elf` was added which will be used for backtraces (#963)
 
 ### Changed
+- `read_efuse` is deprecated (#969)
 
 ### Fixed
 
 - Corrected eFuse BLOCK0 definitions for ESP32-C2, ESP32-C3, and ESP32-S3 (#961)
+- Several fixes in `read_efuse` (#969)
 
 ### Removed
 

diff --git a/espflash/src/error.rs b/espflash/src/error.rs
@@ -319,7 +319,7 @@ pub enum Error {
     #[error("Invalid `address`({address})  and/or `size`({size}) argument(s)")]
     #[diagnostic(
         code(espflash::erase_region::invalid_argument),
-        help("`address` and `size` must be multiples of 0x1000 (4096)")
+        help("`address` ({address}) and `size` ({size}) must be multiples of 0x1000 (4096)")
     )]
     InvalidEraseRegionArgument {
         /// Address argument
@@ -332,7 +332,9 @@ pub enum Error {
     #[error("The firmware was built for {elf}, but the detected chip is {detected}")]
     #[diagnostic(
         code(espflash::chip_mismatch),
-        help("Ensure that the device is connected and your host recognizes the serial adapter")
+        help(
+            "Ensure that the device is connected and your host recognizes the serial adapter. (File {elf}, detected chip is {detected})"
+        )
     )]
     FirmwareChipMismatch {
         /// Chip which the ELF file was built for
@@ -357,6 +359,10 @@ pub enum Error {
     /// Key is not in the expected section
     #[error("Misplaced key, check your configuration file. Key: {0}")]
     MisplacedKey(String),
+
+    /// The efuse field is larger than 32 bit.
+    #[error("Requested efuse field is larger than 32 bit. Use `read_efuse_le`.")]
+    EfuseFieldTooLarge,
 }
 
 #[cfg(feature = "serialport")]

diff --git a/espflash/src/target/efuse/esp32.rs b/espflash/src/target/efuse/esp32.rs
@@ -2,7 +2,7 @@
 //!
 //! This file was automatically generated, please do not edit it manually!
 //!
-//! Generated: 2025-06-25 11:06
+//! Generated: 2025-11-19 12:31
 //! Version:   369d2d860d34e777c0f7d545a7dfc3c4
 
 #![allow(unused)]

diff --git a/espflash/src/target/efuse/esp32c2.rs b/espflash/src/target/efuse/esp32c2.rs
@@ -2,15 +2,15 @@
 //!
 //! This file was automatically generated, please do not edit it manually!
 //!
-//! Generated: 2025-06-26 09:47
+//! Generated: 2025-11-19 12:31
 //! Version:   897499b0349a608b895d467abbcf006b
 
 #![allow(unused)]
 
 use super::EfuseField;
 
 /// Total size in bytes of each block
-pub(crate) const BLOCK_SIZES: &[u32] = &[8, 11, 32, 32];
+pub(crate) const BLOCK_SIZES: &[u32] = &[8, 12, 32, 32];
 
 /// Disable programming of individual eFuses
 pub const WR_DIS: EfuseField = EfuseField::new(0, 0, 0, 8);

diff --git a/espflash/src/target/efuse/esp32c3.rs b/espflash/src/target/efuse/esp32c3.rs
@@ -2,15 +2,15 @@
 //!
 //! This file was automatically generated, please do not edit it manually!
 //!
-//! Generated: 2025-06-26 09:47
+//! Generated: 2025-11-19 12:31
 //! Version:   4622cf9245401eca0eb1df8122449a6d
 
 #![allow(unused)]
 
 use super::EfuseField;
 
 /// Total size in bytes of each block
-pub(crate) const BLOCK_SIZES: &[u32] = &[23, 24, 32, 32, 32, 32, 32, 32, 32, 32, 32];
+pub(crate) const BLOCK_SIZES: &[u32] = &[24, 24, 32, 32, 32, 32, 32, 32, 32, 32, 32];
 
 /// Disable programming of individual eFuses
 pub const WR_DIS: EfuseField = EfuseField::new(0, 0, 0, 32);

diff --git a/espflash/src/target/efuse/esp32c5.rs b/espflash/src/target/efuse/esp32c5.rs
@@ -2,7 +2,7 @@
 //!
 //! This file was automatically generated, please do not edit it manually!
 //!
-//! Generated: 2025-06-26 09:47
+//! Generated: 2025-11-19 12:31
 //! Version:   31c7fe3f5f4e0a55b178a57126c0aca7
 
 #![allow(unused)]

diff --git a/espflash/src/target/efuse/esp32c6.rs b/espflash/src/target/efuse/esp32c6.rs
@@ -2,7 +2,7 @@
 //!
 //! This file was automatically generated, please do not edit it manually!
 //!
-//! Generated: 2025-06-25 11:06
+//! Generated: 2025-11-19 12:31
 //! Version:   df46b69f0ed3913114ba53d3a0b2b843
 
 #![allow(unused)]

diff --git a/espflash/src/target/efuse/esp32h2.rs b/espflash/src/target/efuse/esp32h2.rs
@@ -2,7 +2,7 @@
 //!
 //! This file was automatically generated, please do not edit it manually!
 //!
-//! Generated: 2025-06-25 11:06
+//! Generated: 2025-11-19 12:31
 //! Version:   44563d2af4ebdba4db6c0a34a50c94f9
 
 #![allow(unused)]

diff --git a/espflash/src/target/efuse/esp32p4.rs b/espflash/src/target/efuse/esp32p4.rs
@@ -2,7 +2,7 @@
 //!
 //! This file was automatically generated, please do not edit it manually!
 //!
-//! Generated: 2025-06-25 11:06
+//! Generated: 2025-11-19 12:31
 //! Version:   f7765f0ac3faf4b54f8c1f064307522c
 
 #![allow(unused)]

diff --git a/espflash/src/target/efuse/esp32s2.rs b/espflash/src/target/efuse/esp32s2.rs
@@ -2,7 +2,7 @@
 //!
 //! This file was automatically generated, please do not edit it manually!
 //!
-//! Generated: 2025-06-26 09:47
+//! Generated: 2025-11-19 12:31
 //! Version:   888a61f6f500d9c7ee0aa32016b0bee7
 
 #![allow(unused)]

diff --git a/espflash/src/target/efuse/esp32s3.rs b/espflash/src/target/efuse/esp32s3.rs
@@ -2,15 +2,15 @@
 //!
 //! This file was automatically generated, please do not edit it manually!
 //!
-//! Generated: 2025-06-26 09:47
+//! Generated: 2025-11-19 12:31
 //! Version:   7127dd097e72bb90d0b790d460993126
 
 #![allow(unused)]
 
 use super::EfuseField;
 
 /// Total size in bytes of each block
-pub(crate) const BLOCK_SIZES: &[u32] = &[23, 24, 32, 32, 32, 32, 32, 32, 32, 32, 32];
+pub(crate) const BLOCK_SIZES: &[u32] = &[24, 24, 32, 32, 32, 32, 32, 32, 32, 32, 32];
 
 /// Disable programming of individual eFuses
 pub const WR_DIS: EfuseField = EfuseField::new(0, 0, 0, 32);