From 4d763d8130105505657ac1e2e5552ec69873bffc Mon Sep 17 00:00:00 2001
From: Stefan Rueger <stefan.rueger@urclocks.com>
Date: Thu, 8 Jan 2026 19:42:52 +0000
Subject: [PATCH 1/3] Add ATmegaS128 and ATmegaS64M1

---
 src/avrdude.conf.in | 60 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/src/avrdude.conf.in b/src/avrdude.conf.in
index 3d1ae954..b413a65a 100644
--- a/src/avrdude.conf.in
+++ b/src/avrdude.conf.in
@@ -21344,6 +21344,66 @@ part parent ".avr8x_mega" # m4809
     ;
 ;
 
+#------------------------------------------------------------
+# Classic parts with a defined degree of Radiation Tolerance
+#------------------------------------------------------------
+
+#------------------------------------------------------------
+# ATmegaS64M1
+#------------------------------------------------------------
+
+part parent "m64m1" # ms64m1
+    desc                   = "ATmegaS64M1";
+    id                     = "ms64m1";
+    variants               =
+        "ATmegaS64M1-KH-E:  CQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.6 V, 3.6 V]",
+        "ATmegaS64M1-KH-MQ: CQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.6 V, 3.6 V]",
+        "ATmegaS64M1-KH-SV: CQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.6 V, 3.6 V]",
+        "ATmegaS64M1-MA-HP: TQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.0 V, 3.6 V]";
+    mcuid                  = 412;
+    chip_erase_delay       = 10500;
+
+    memory "flash"
+        min_write_delay    = 2600;
+        max_write_delay    = 2600;
+    ;
+
+    memory "lfuse"
+        min_write_delay    = 2600;
+        max_write_delay    = 2600;
+    ;
+
+    memory "hfuse"
+        min_write_delay    = 2600;
+        max_write_delay    = 2600;
+    ;
+
+    memory "efuse"
+        min_write_delay    = 2600;
+        max_write_delay    = 2600;
+    ;
+
+    memory "lock"
+        min_write_delay    = 2600;
+        max_write_delay    = 2600;
+    ;
+;
+
+#------------------------------------------------------------
+# ATmegaS128
+#------------------------------------------------------------
+
+part parent "m128" # ms128
+    desc                   = "ATmegaS128";
+    id                     = "ms128";
+    variants               =
+        "ATmegaS128-MD-HP: TQFP64, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.0 V, 3.6 V]",
+        "ATmegaS128-ZC-E:  CQFP64, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.0 V, 3.6 V]",
+        "ATmegaS128-ZC-MQ: CQFP64, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.0 V, 3.6 V]",
+        "ATmegaS128-ZC-SV: CQFP64, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.0 V, 3.6 V]";
+    mcuid                  = 413;
+;
+
 #------------------------------------------------------------
 # AVR-DA/DB family common values
 #------------------------------------------------------------

From dc3dcb71ca6ca92521f2263a829aa8d9072122db Mon Sep 17 00:00:00 2001
From: Stefan Rueger <stefan.rueger@urclocks.com>
Date: Fri, 9 Jan 2026 11:17:54 +0000
Subject: [PATCH 2/3] Fix typo

---
 src/avrdude.conf.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/avrdude.conf.in b/src/avrdude.conf.in
index b413a65a..f76ede85 100644
--- a/src/avrdude.conf.in
+++ b/src/avrdude.conf.in
@@ -21345,7 +21345,7 @@ part parent ".avr8x_mega" # m4809
 ;
 
 #------------------------------------------------------------
-# Classic parts with a defined degree of Radiation Tolerance
+# Classic parts with a defined degree of radiation tolerance
 #------------------------------------------------------------
 
 #------------------------------------------------------------

From 8d7fc4df00586876f7f632c80dca00de6b1b8ba5 Mon Sep 17 00:00:00 2001
From: Stefan Rueger <stefan.rueger@urclocks.com>
Date: Fri, 9 Jan 2026 11:18:39 +0000
Subject: [PATCH 3/3] Fix implausible variants data

---
 src/avrdude.conf.in | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/avrdude.conf.in b/src/avrdude.conf.in
index f76ede85..617f1dc4 100644
--- a/src/avrdude.conf.in
+++ b/src/avrdude.conf.in
@@ -21356,9 +21356,9 @@ part parent "m64m1" # ms64m1
     desc                   = "ATmegaS64M1";
     id                     = "ms64m1";
     variants               =
-        "ATmegaS64M1-KH-E:  CQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.6 V, 3.6 V]",
-        "ATmegaS64M1-KH-MQ: CQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.6 V, 3.6 V]",
-        "ATmegaS64M1-KH-SV: CQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.6 V, 3.6 V]",
+        "ATmegaS64M1-KH-E:  CQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.0 V, 3.6 V]",
+        "ATmegaS64M1-KH-MQ: CQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.0 V, 3.6 V]",
+        "ATmegaS64M1-KH-SV: CQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.0 V, 3.6 V]",
         "ATmegaS64M1-MA-HP: TQFP32, Fmax=8 MHz, T=[-55 C, 125 C], Vcc=[3.0 V, 3.6 V]";
     mcuid                  = 412;
     chip_erase_delay       = 10500;