arch/arm/stm32h5: STM32H5 PWM Driver (STM32H7 port)

Adding the stm32h5 pwm driver. This is almost an exact copy of the stm32h7 pwm driver. I confirmed the timers for the h5 are version v2 and added the preprocessor definition. This commit was tested on a stm32h5 nucleo-h563zi development board. Necessary board files and a pwm config have been added. Added pin mappings for all timer outputs. Signed-off-by: kywwilson11 <kwilson@2g-eng.com> Added documentation regarding nucleo-h563zi:pwm config. Removed CONFIG_STM32H5_PWM guard at the top. Fixed IRQs for tim1 and tim8. Added H5 to list of Timer IP v2 timers. Conditionally compile stm32_serial.c. Add stm32_pwm.c to CMakeLists.txt
2026-05-30 21:36:28 +08:00 · 2025-10-22 15:39:52 -05:00
parent 678cd54aa8
commit 35d1aaafda
14 changed files with 5871 additions and 2 deletions
@@ -0,0 +1,56 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="nucleo-h563zi"
+CONFIG_ARCH_BOARD_NUCLEO_H563ZI=y
+CONFIG_ARCH_BUTTONS=y
+CONFIG_ARCH_CHIP="stm32h5"
+CONFIG_ARCH_CHIP_STM32H563ZI=y
+CONFIG_ARCH_CHIP_STM32H5=y
+CONFIG_ARCH_INTERRUPTSTACK=2048
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARMV8M_STACKCHECK=y
+CONFIG_BOARD_LOOPSPERMSEC=9251
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_ASSERTIONS=y
+CONFIG_DEBUG_FEATURES=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_EXAMPLES_PWM=y
+CONFIG_EXAMPLES_PWM_DURATION=60
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_HAVE_CXX=y
+CONFIG_HAVE_CXXINITIALIZE=y
+CONFIG_IDLETHREAD_STACKSIZE=2048
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_LINE_MAX=64
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_DISABLE_IFUPDOWN=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_PWM=y
+CONFIG_RAM_SIZE=655360
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_READLINE_TABCOMPLETION=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_STACK_COLORATION=y
+CONFIG_STM32H5_TIM1=y
+CONFIG_STM32H5_TIM1_CH1OUT=y
+CONFIG_STM32H5_TIM1_PWM=y
+CONFIG_STM32H5_USART3=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_TIMER=y
+CONFIG_USART3_SERIAL_CONSOLE=y
@@ -322,6 +322,10 @@
 #define GPIO_ADC1_INP3   (GPIO_ADC1_INP3_0)
 #define GPIO_ADC1_INP10  (GPIO_ADC1_INP10_0)

+/* Timers / PWM */
+
+#define GPIO_TIM1_CH1OUT GPIO_TIM1_CH1OUT_2 /* PE9 */
+
 /* USART3 GPIOs *************************************************************/

 /* USART3 (Nucleo Virtual Console): Default board solder bridge configuration
@@ -51,4 +51,8 @@ ifeq ($(CONFIG_STM32H5_FDCAN),y)
 CSRCS += stm32_can.c
 endif

+ifeq ($(CONFIG_STM32H5_PWM),y)
+CSRCS += stm32_pwm.c
+endif
+
 include $(TOPDIR)/boards/Board.mk
@@ -145,5 +145,17 @@ int stm32_dts_setup(int devno);
 int stm32_can_setup(uint8_t port);
 #endif

+/****************************************************************************
+ * Name: stm32_pwm_setup
+ *
+ * Description:
+ *   Initialize PWM and register the PWM device.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_PWM
+int stm32_pwm_setup(void);
+#endif
+
 #endif /* __ASSEMBLY__ */
 #endif /* __BOARDS_ARM_STM32H5_NUCLEO_H563ZI_SRC_NUCLEO_H563ZI_H */
@@ -139,6 +139,16 @@ int stm32_bringup(void)
 # endif
 #endif

+#ifdef CONFIG_PWM
+  /* Initialize PWM and register the PWM device. */
+
+  ret = stm32_pwm_setup();
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: stm32_pwm_setup() failed: %d\n", ret);
+    }
+#endif
+
  UNUSED(ret);
  return OK;
 }
@@ -0,0 +1,110 @@
+/****************************************************************************
+ * boards/arm/stm32h5/nucleo-h563zi/src/stm32_pwm.c
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/timers/pwm.h>
+#include <arch/board/board.h>
+
+#include "chip.h"
+#include "arm_internal.h"
+#include "stm32_pwm.h"
+#include "nucleo-h563zi.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+#define HAVE_PWM 1
+
+#ifndef CONFIG_PWM
+#  undef HAVE_PWM
+#endif
+
+#ifndef CONFIG_STM32H5_TIM1
+#  undef HAVE_PWM
+#endif
+
+#ifndef CONFIG_STM32H5_TIM1_PWM
+#  undef HAVE_PWM
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: stm32_pwm_setup
+ *
+ * Description:
+ *   Initialize PWM and register the PWM device.
+ *
+ ****************************************************************************/
+
+int stm32_pwm_setup(void)
+{
+#ifdef HAVE_PWM
+  static bool initialized = false;
+  struct pwm_lowerhalf_s *pwm;
+  int ret;
+
+  /* Have we already initialized? */
+
+  if (!initialized)
+    {
+      /* Get an instance of the PWM interface */
+
+      pwm = stm32_pwminitialize(1);
+      if (!pwm)
+        {
+          tmrerr("ERROR: Failed to get the STM32 PWM lower half\n");
+          return -ENODEV;
+        }
+
+      /* Register the PWM driver at "/dev/pwm0" */
+
+      ret = pwm_register("/dev/pwm0", pwm);
+      if (ret < 0)
+        {
+          tmrerr("ERROR: pwm_register failed: %d\n", ret);
+          return ret;
+        }
+
+      /* Now we are initialized */
+
+      initialized = true;
+    }
+
+  return OK;
+#else
+  return -ENODEV;
+#endif
+}