misc: Support for STM32401CD Blackpill as debug probe

Author: lasutek

cross-file/blackpill-f401cd.ini

@@ -0,0 +1,24 @@
+# This a cross-file for the blackpill-f401cd probe, providing sane default options for it.
+
+[binaries]
+c = 'arm-none-eabi-gcc'
+cpp = 'arm-none-eabi-g++'
+ld = 'arm-none-eabi-gcc'
+ar = 'arm-none-eabi-ar'
+nm = 'arm-none-eabi-nm'
+strip = 'arm-none-eabi-strip'
+objcopy = 'arm-none-eabi-objcopy'
+objdump = 'arm-none-eabi-objdump'
+size = 'arm-none-eabi-size'
+
+[host_machine]
+system = 'bare-metal'
+cpu_family = 'arm'
+cpu = 'arm'
+endian = 'little'
+
+[project options]
+probe = 'blackpill-f401cd'
+targets = 'cortexar,cortexm,riscv32,riscv64,apollo3,at32f4,ch32,ch579,efm,gd32,hc32,lpc,mm32,nrf,nxp,puya,renesas,rp,sam,stm,ti,xilinx'
+rtt_support = true
+bmd_bootloader = true

meson_options.txt

@@ -5,6 +5,7 @@ option(
 		'',
 		'96b_carbon',
 		'blackpill-f401cc',
+		'blackpill-f401cd',
 		'blackpill-f401ce',
 		'blackpill-f411ce',
 		'bluepill',

src/platforms/blackpill-f401cd/README.md

@@ -0,0 +1,4 @@
+This platform supports the Black Pill F401CD, with STM32F401CD.
+
+Detailed information about this platform can be found found in the [readme of the common blackpill-f4 code](./../common/blackpill-f4/README.md).
+

src/platforms/blackpill-f401cd/platform.h

@@ -0,0 +1,31 @@
+/*
+ * This file is part of the Black Magic Debug project.
+ *
+ * Copyright (C) 2011  Black Sphere Technologies Ltd.
+ * Written by Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* This file provides the platform specific declarations for the blackpill-f401cd implementation. */
+
+#ifndef PLATFORMS_BLACKPILL_F401CD_PLATFORM_H
+#define PLATFORMS_BLACKPILL_F401CD_PLATFORM_H
+
+#define PLATFORM_IDENT      "(BlackPill-F401CD) "
+#define PLATFORM_CLOCK_FREQ RCC_CLOCK_3V3_84MHZ
+
+#include "blackpill-f4.h"
+
+#endif /* PLATFORMS_BLACKPILL_F401CD_PLATFORM_H */

src/platforms/common/blackpill-f4/blackpill-f401cd.ld

@@ -0,0 +1,30 @@
+/*
+ * This file is part of the libopenstm32 project.
+ *
+ * Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
+ * Copyright (C) 2024 1BitSquared <info@1bitsquared.com>
+ * Modified by Rachel Mant <git@dragonmux.network>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Define memory regions. */
+MEMORY
+{
+	rom (rx) : ORIGIN = 0x08000000, LENGTH = 384K
+	ram (rwx) : ORIGIN = 0x20000000, LENGTH = 96K
+}
+
+/* Include the platform common linker script. */
+INCLUDE ../blackmagic.ld

src/platforms/meson.build

@@ -44,6 +44,7 @@ subdir('common/tm4c')
 # This is used to allow multiple probes share the same source code
 probe_alias_map = {
 	'blackpill-f401cc': 'common/blackpill-f4',
+	'blackpill-f401cd': 'common/blackpill-f4',
 	'blackpill-f401ce': 'common/blackpill-f4',
 	'blackpill-f411ce': 'common/blackpill-f4',
 	'bluepill': 'stlink',