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feat(xiao): add Seeed XIAO STM32C5 board support #3048

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94 changes: 94 additions & 0 deletions boards.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -17229,6 +17229,52 @@ Phoque.menu.upload_method.OpenOCDDapLink.upload.tool=openocd_upload
Phoque.menu.upload_method.OpenOCDDapLink.debug.server.openocd.scripts.0=interface/cmsis-dap.cfg
Phoque.menu.upload_method.OpenOCDDapLink.debug.server.openocd.scripts.1={runtime.platform.path}/debugger/select_swd.cfg

################################################################################
# Seeed Studio
# Docs: url=https://www.seeedstudio.com/
Seeed_studio.name=Seeed Studio
Seeed_studio.build.core=arduino
Seeed_studio.build.board=Seeed_studio
Seeed_studio.build.family=SEEED_STUDIO
Seeed_studio.build.variant_h=variant_{build.board}.h
Seeed_studio.build.st_extra_flags=-D{build.product_line} {build.enable_usb} {build.xSerial}
Seeed_studio.build.flash_offset=0x0
Seeed_studio.upload.maximum_size=0
Seeed_studio.upload.maximum_data_size=0
Seeed_studio.vid.0=0x2886
Seeed_studio.pid.0=0x80C5

# Seeed XIAO STM32C5
# Docs: url=https://www.seeedstudio.com/XIAO-STM32C5-p-7011.html
# Docs: mcu=STM32C5A3CG
Seeed_studio.menu.pnum.XIAO_STM32C5=Seeed XIAO STM32C5
Seeed_studio.menu.pnum.XIAO_STM32C5.upload.maximum_size=1015808
Seeed_studio.menu.pnum.XIAO_STM32C5.upload.maximum_data_size=262144
Seeed_studio.menu.pnum.XIAO_STM32C5.build.mcu=cortex-m33
Seeed_studio.menu.pnum.XIAO_STM32C5.build.fpu=-mfpu=fpv5-sp-d16
Seeed_studio.menu.pnum.XIAO_STM32C5.build.float-abi=-mfloat-abi=hard
Seeed_studio.menu.pnum.XIAO_STM32C5.build.board=XIAO_STM32C5
Seeed_studio.menu.pnum.XIAO_STM32C5.build.series=STM32C5xx
Seeed_studio.menu.pnum.XIAO_STM32C5.build.product_line=STM32C5A3xx
Seeed_studio.menu.pnum.XIAO_STM32C5.build.variant=STM32C5xx/C593C(E-G)(T-U)_C5A3CG(T-U)
Seeed_studio.menu.pnum.XIAO_STM32C5.build.variant_h=variant_XIAO_STM32C5.h
Seeed_studio.menu.pnum.XIAO_STM32C5.build.ldscript=ldscript_XIAO_STM32C5.ld
Seeed_studio.menu.pnum.XIAO_STM32C5.build.hal=-DUSE_HALV2_DRIVER
Seeed_studio.menu.pnum.XIAO_STM32C5.build.flash_offset=0x8000
Seeed_studio.menu.pnum.XIAO_STM32C5.build.st_extra_flags=-D{build.product_line} -DHSE_VALUE=48000000U -DUSBD_SELF_POWERED=1 -DUSBD_MAX_POWER=50 {build.enable_usb} {build.xSerial}
Seeed_studio.menu.pnum.XIAO_STM32C5.debug.svd_file={runtime.tools.STM32_SVD.path}/svd/STM32C5xx/STM32C5A3.svd

# Upload menu
Seeed_studio.menu.upload_method.swdMethod=STM32CubeProgrammer (SWD)
Seeed_studio.menu.upload_method.swdMethod.upload.protocol=swd
Seeed_studio.menu.upload_method.swdMethod.upload.options=-a {upload.address} -m {upload.mode} -s {upload.start} -f {upload.freq} -n {upload.stlink_sn}
Seeed_studio.menu.upload_method.swdMethod.upload.tool=stm32CubeProg

Seeed_studio.menu.upload_method.jlinkMethod=STM32CubeProgrammer (J-Link)
Seeed_studio.menu.upload_method.jlinkMethod.upload.protocol=jlink
Seeed_studio.menu.upload_method.jlinkMethod.upload.options=-a {upload.address} -s {upload.start}
Seeed_studio.menu.upload_method.jlinkMethod.upload.tool=stm32CubeProg

################################################################################
# Serialx activation
Nucleo_144.menu.xserial.generic=Enabled (generic 'Serial')
Expand Down Expand Up @@ -17496,6 +17542,12 @@ Phoque.menu.xserial.none.build.xSerial=-DHAL_UART_MODULE_ENABLED -DHWSERIAL_NONE
Phoque.menu.xserial.disabled=Disabled (no Serial support)
Phoque.menu.xserial.disabled.build.xSerial=

Seeed_studio.menu.xserial.generic=Enabled (generic 'Serial')
Seeed_studio.menu.xserial.none=Enabled (no generic 'Serial')
Seeed_studio.menu.xserial.none.build.xSerial=-DHAL_UART_MODULE_ENABLED -DHWSERIAL_NONE
Seeed_studio.menu.xserial.disabled=Disabled (no Serial support)
Seeed_studio.menu.xserial.disabled.build.xSerial=

# USB connectivity
Nucleo_144.menu.usb.none=None
Nucleo_144.menu.usb.CDCgen=CDC (generic 'Serial' supersede U(S)ART)
Expand Down Expand Up @@ -17890,6 +17942,12 @@ Phoque.menu.xusb.HS.build.usb_speed=-DUSE_USB_HS
Phoque.menu.xusb.HSFS=High Speed in Full Speed mode
Phoque.menu.xusb.HSFS.build.usb_speed=-DUSE_USB_HS -DUSE_USB_HS_IN_FS

Seeed_studio.menu.usb.CDCgen=CDC (generic 'Serial' supersede U(S)ART)
Seeed_studio.menu.usb.CDCgen.build.enable_usb={build.usb_flags} -DUSBD_USE_CDC
Seeed_studio.menu.usb.none=None
Seeed_studio.menu.usb.CDC=CDC (no generic 'Serial')
Seeed_studio.menu.usb.CDC.build.enable_usb={build.usb_flags} -DUSBD_USE_CDC -DDISABLE_GENERIC_SERIALUSB

# Optimizations
Nucleo_144.menu.opt.osstd=Smallest (-Os default)
Nucleo_144.menu.opt.oslto=Smallest (-Os) with LTO
Expand Down Expand Up @@ -18751,6 +18809,24 @@ Phoque.menu.opt.ogstd.build.flags.optimize=-Og
Phoque.menu.opt.o0std=No Optimization (-O0)
Phoque.menu.opt.o0std.build.flags.optimize=-O0

Seeed_studio.menu.opt.osstd=Smallest (-Os default)
Seeed_studio.menu.opt.oslto=Smallest (-Os) with LTO
Seeed_studio.menu.opt.oslto.build.flags.optimize=-Os -flto
Seeed_studio.menu.opt.o1std=Fast (-O1)
Seeed_studio.menu.opt.o1std.build.flags.optimize=-O1
Seeed_studio.menu.opt.o1lto=Fast (-O1) with LTO
Seeed_studio.menu.opt.o1lto.build.flags.optimize=-O1 -flto
Seeed_studio.menu.opt.o2std=Faster (-O2)
Seeed_studio.menu.opt.o2std.build.flags.optimize=-O2
Seeed_studio.menu.opt.o2lto=Faster (-O2) with LTO
Seeed_studio.menu.opt.o2lto.build.flags.optimize=-O2 -flto
Seeed_studio.menu.opt.o3std=Fastest (-O3)
Seeed_studio.menu.opt.o3std.build.flags.optimize=-O3
Seeed_studio.menu.opt.o3lto=Fastest (-O3) with LTO
Seeed_studio.menu.opt.o3lto.build.flags.optimize=-O3 -flto
Seeed_studio.menu.opt.ogstd=Debug (-Og)
Seeed_studio.menu.opt.ogstd.build.flags.optimize=-Og

# Debug information
Nucleo_144.menu.dbg.none=None
Nucleo_144.menu.dbg.enable_sym=Symbols Enabled (-g)
Expand Down Expand Up @@ -19088,6 +19164,14 @@ Phoque.menu.dbg.enable_log.build.flags.debug=
Phoque.menu.dbg.enable_all=Core Logs and Symbols Enabled (-g)
Phoque.menu.dbg.enable_all.build.flags.debug=-g

Seeed_studio.menu.dbg.none=None
Seeed_studio.menu.dbg.enable_sym=Symbols Enabled (-g)
Seeed_studio.menu.dbg.enable_sym.build.flags.debug=-g -DNDEBUG
Seeed_studio.menu.dbg.enable_log=Core logs Enabled
Seeed_studio.menu.dbg.enable_log.build.flags.debug=
Seeed_studio.menu.dbg.enable_all=Core Logs and Symbols Enabled (-g)
Seeed_studio.menu.dbg.enable_all.build.flags.debug=-g

# C Runtime Library
Nucleo_144.menu.rtlib.nano=Newlib Nano (default)
Nucleo_144.menu.rtlib.nanofp=Newlib Nano + Float Printf
Expand Down Expand Up @@ -19518,3 +19602,13 @@ Phoque.menu.rtlib.nanofps=Newlib Nano + Float Printf/Scanf
Phoque.menu.rtlib.nanofps.build.flags.ldspecs=--specs=nano.specs -u _printf_float -u _scanf_float
Phoque.menu.rtlib.full=Newlib Standard
Phoque.menu.rtlib.full.build.flags.ldspecs=

Seeed_studio.menu.rtlib.nano=Newlib Nano (default)
Seeed_studio.menu.rtlib.nanofp=Newlib Nano + Float Printf
Seeed_studio.menu.rtlib.nanofp.build.flags.ldspecs=--specs=nano.specs -u _printf_float
Seeed_studio.menu.rtlib.nanofs=Newlib Nano + Float Scanf
Seeed_studio.menu.rtlib.nanofs.build.flags.ldspecs=--specs=nano.specs -u _scanf_float
Seeed_studio.menu.rtlib.nanofps=Newlib Nano + Float Printf/Scanf
Seeed_studio.menu.rtlib.nanofps.build.flags.ldspecs=--specs=nano.specs -u _printf_float -u _scanf_float
Seeed_studio.menu.rtlib.full=Newlib Standard
Seeed_studio.menu.rtlib.full.build.flags.ldspecs=
6 changes: 6 additions & 0 deletions docs/supported-boards/index.md
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Expand Up @@ -1603,3 +1603,9 @@
| --- | --- | --- | --- | --- |
| Phoque 1 | [STM32G431VB](https://www.st.com/en/microcontrollers-microprocessors/stm32g431vb.html) | `PHOQUE1` | Next release | STSPIN32G4-based |
| Phoque 2 | [STM32G431CB](https://www.st.com/en/microcontrollers-microprocessors/stm32g431cb.html) | `PHOQUE2` | Next release | |

### [Seeed Studio boards](https://www.seeedstudio.com/)

| Board | STM32 MCU | `build.board` | First release | Notes |
| --- | --- | --- | --- | --- |
| [Seeed XIAO STM32C5](https://www.seeedstudio.com/XIAO-STM32C5-p-7011.html) | [STM32C5A3CG](https://www.st.com/en/microcontrollers-microprocessors/stm32c5a3cg.html) | `XIAO_STM32C5` | Next release | |
173 changes: 173 additions & 0 deletions variants/STM32C5xx/C593C(E-G)(T-U)_C5A3CG(T-U)/ldscript_XIAO_STM32C5.ld
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@@ -0,0 +1,173 @@
/*
* Copyright (c) 2026, Seeed Technology Co., Ltd.
* SPDX-License-Identifier: BSD-3-Clause
*
* The application starts after the 32 KiB TinyUF2 bootloader. Memory sizes are
* supplied by boards.txt through LD_MAX_SIZE and LD_MAX_DATA_SIZE.
*/
ENTRY(Reset_Handler)

HEAP_SIZE = 0x2000;
STACK_SIZE = 0x2000;

MEMORY
{
ROM (rx) : org = 0x08000000 + LD_FLASH_OFFSET, len = LD_MAX_SIZE - LD_FLASH_OFFSET
RAM (xrw) : org = 0x20000000, len = LD_MAX_DATA_SIZE
}

SECTIONS
{
.vectors :
{
. = ALIGN(8);
KEEP(*(.vectors));
. = ALIGN(8);
} > ROM

.text :
{
. = ALIGN(8);
*(.text);
*(.text*);
*(.glue_7);
*(.glue_7t);
*(.eh_frame);
KEEP(*(.init));
KEEP(*(.fini));
. = ALIGN(8);
_etext = .;
} > ROM

.rodata :
{
. = ALIGN(8);
*(.rodata);
*(.rodata*);
. = ALIGN(8);
} > ROM

.ARM.extab (READONLY) :
{
. = ALIGN(8);
*(.ARM.extab* .gnu.linkonce.armextab.*)
. = ALIGN(8);
} > ROM

.ARM (READONLY) :
{
. = ALIGN(8);
__exidx_start = .;
*(.ARM.exidx*);
__exidx_end = .;
. = ALIGN(8);
} > ROM

.preinit_array (READONLY) :
{
. = ALIGN(8);
PROVIDE_HIDDEN(__preinit_array_start = .);
KEEP(*(.preinit_array*));
PROVIDE_HIDDEN(__preinit_array_end = .);
. = ALIGN(8);
} > ROM

.init_array (READONLY) :
{
. = ALIGN(8);
PROVIDE_HIDDEN(__init_array_start = .);
KEEP(*(SORT(.init_array.*)));
KEEP(*(.init_array*));
PROVIDE_HIDDEN(__init_array_end = .);
. = ALIGN(8);
} > ROM

.fini_array (READONLY) :
{
. = ALIGN(8);
PROVIDE_HIDDEN(__fini_array_start = .);
KEEP(*(SORT(.fini_array.*)));
KEEP(*(.fini_array*));
PROVIDE_HIDDEN(__fini_array_end = .);
. = ALIGN(8);
} > ROM

.copy.table (READONLY) :
{
. = ALIGN(8);
__copy_table_start__ = .;
LONG(LOADADDR(.data));
LONG(ADDR(.data));
LONG(SIZEOF(.data) / 4);
__copy_table_end__ = .;
} > ROM

.zero.table (READONLY) :
{
. = ALIGN(8);
__zero_table_start__ = .;
LONG(ADDR(.bss));
LONG(SIZEOF(.bss) / 4);
__zero_table_end__ = .;
} > ROM

.data :
{
. = ALIGN(8);
_sidata = LOADADDR(.data);
__data_start__ = .;
_sdata = .;
*(.data);
*(.data*);
. = ALIGN(8);
_edata = .;
} > RAM AT> ROM

.bss :
{
. = ALIGN(8);
_sbss = .;
__bss_start__ = _sbss;
*(.bss);
*(.bss*);
*(COMMON);
. = ALIGN(8);
_ebss = .;
__bss_end__ = _ebss;
} > RAM

.heap (NOLOAD) :
{
. = ALIGN(8);
__end__ = .;
PROVIDE(end = .);
_heap_start = .;
. += HEAP_SIZE;
. = ALIGN(8);
_heap_end = .;
__HeapLimit = .;
} > RAM

.stack (NOLOAD) :
{
. = ALIGN(8);
__StackLimit = .;
. += STACK_SIZE;
. = ALIGN(8);
__StackTop = .;
_estack = .;
__stack = .;
} > RAM

/DISCARD/ :
{
libc.a(*);
libm.a(*);
libgcc.a(*);
}

.ARM.attributes 0 :
{
*(.ARM.attributes)
}
}
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