From b67e00892c726f27051b407486d9f0c04ff687f9 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Thu, 31 Jul 2025 21:52:59 +0700
Subject: add ci build for all at32, use linker and startup from mcu cmsis
 instead of local files

---
 examples/build_system/make/cpu/cortex-m4-nofpu.mk | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 examples/build_system/make/cpu/cortex-m4-nofpu.mk

(limited to 'examples/build_system/make')

diff --git a/examples/build_system/make/cpu/cortex-m4-nofpu.mk b/examples/build_system/make/cpu/cortex-m4-nofpu.mk
new file mode 100644
index 000000000..ac2916005
--- /dev/null
+++ b/examples/build_system/make/cpu/cortex-m4-nofpu.mk
@@ -0,0 +1,20 @@
+ifeq ($(TOOLCHAIN),gcc)
+  CFLAGS += \
+    -mthumb \
+    -mcpu=cortex-m4 \
+    -mfloat-abi=soft
+
+else ifeq ($(TOOLCHAIN),clang)
+  CFLAGS += \
+	  --target=arm-none-eabi \
+	  -mcpu=cortex-m4
+
+else ifeq ($(TOOLCHAIN),iar)
+  CFLAGS += --cpu cortex-m4 --fpu none
+  ASFLAGS += --cpu cortex-m4 --fpu none
+
+else
+  $(error "TOOLCHAIN is not supported")
+endif
+
+FREERTOS_PORTABLE_SRC ?= $(FREERTOS_PORTABLE_PATH)/ARM_CM3
-- 
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