boards/arm/stm32f0l0g0/nucleo-g070rb/include/board.h: Add TIMx clock frequencies

boards/arm/stm32f0l0g0/nucleo-g070rb: Enable basic timers

boards/arm/stm32f0l0g0/nucleo-g070rb/README.txt

@@ -9,4 +9,4 @@ STATUS
   2019-09-04: Initial support for the STM32 Nucleo-G070RB board, based on STM32 Nucleo-G071RB.
               Basic NSH configuration is functional.
   2019-09-16: Enable PWR peripheral and increase sysclk to max. frequency.
-
+  2019-10-04: Enable basic timer TIM6. Timer example working.

boards/arm/stm32f0l0g0/nucleo-g070rb/configs/nsh/defconfig

@@ -11,18 +11,21 @@ CONFIG_ARCH="arm"
 CONFIG_ARCH_BOARD="nucleo-g070rb"
 CONFIG_ARCH_BOARD_NUCLEO_G070RB=y
 CONFIG_ARCH_CHIP="stm32f0l0g0"
-CONFIG_ARCH_CHIP_STM32G0=y
 CONFIG_ARCH_CHIP_STM32G070RB=y
+CONFIG_ARCH_CHIP_STM32G0=y
 CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARD_LATE_INITIALIZE=y
 CONFIG_BOARD_LOOPSPERMSEC=2796
 CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
 CONFIG_DISABLE_ENVIRON=y
 CONFIG_DISABLE_MOUNTPOINT=y
 CONFIG_DISABLE_MQUEUE=y
-CONFIG_DISABLE_POLL=y
 CONFIG_DISABLE_POSIX_TIMERS=y
 CONFIG_DISABLE_PSEUDOFS_OPERATIONS=y
 CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_TIMER=y
 CONFIG_INTELHEX_BINARY=y
 CONFIG_MAX_TASKS=8
 CONFIG_MAX_WDOGPARMS=2
@@ -49,11 +52,12 @@ CONFIG_START_MONTH=5
 CONFIG_START_YEAR=2013
 CONFIG_STDIO_DISABLE_BUFFERING=y
 CONFIG_STM32F0L0G0_PWR=y
-CONFIG_STM32F0L0G0_STM32G0=y
+CONFIG_STM32F0L0G0_TIM6=y
 CONFIG_STM32F0L0G0_USART2=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_TASK_NAME_SIZE=0
 CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=1536
+CONFIG_TIMER=y
 CONFIG_USART2_SERIAL_CONSOLE=y
 CONFIG_USERMAIN_STACKSIZE=1536
 CONFIG_USER_ENTRYPOINT="nsh_main"

boards/arm/stm32f0l0g0/nucleo-g070rb/include/board.h

@@ -129,7 +129,21 @@
 #define STM32_RCC_CFGR_PPRE1    RCC_CFGR_PPRE1_HCLK
 #define STM32_PCLK1_FREQUENCY   STM32_HCLK_FREQUENCY
 
-/* TODO: timers */
+/* Timer clock frequencies */
+
+/* Timers driven from APB1. Frequency = PCLK1 */
+
+#define STM32_APB1_TIM3_CLKIN   (STM32_PCLK1_FREQUENCY)
+#define STM32_APB1_TIM6_CLKIN   (STM32_PCLK1_FREQUENCY)
+#define STM32_APB1_TIM7_CLKIN   (STM32_PCLK1_FREQUENCY)
+
+/* Timers driven from APB2 is equal to PCLK1 */
+
+#define STM32_APB2_TIM1_CLKIN   (STM32_PCLK1_FREQUENCY)
+#define STM32_APB2_TIM14_CLKIN  (STM32_PCLK1_FREQUENCY)
+#define STM32_APB2_TIM15_CLKIN  (STM32_PCLK1_FREQUENCY)
+#define STM32_APB2_TIM16_CLKIN  (STM32_PCLK1_FREQUENCY)
+#define STM32_APB2_TIM17_CLKIN  (STM32_PCLK1_FREQUENCY)
 
 /* LED definitions **********************************************************/
 

boards/arm/stm32f0l0g0/nucleo-g070rb/src/Makefile

@@ -55,4 +55,9 @@ ifeq ($(CONFIG_LIB_BOARDCTL),y)
 CSRCS += stm32_appinit.c
 endif
 
+ifeq ($(CONFIG_TIMER),y)
+CSRCS += stm32_timer.c
+endif
+
+
 include $(TOPDIR)/boards/Board.mk

boards/arm/stm32f0l0g0/nucleo-g070rb/src/nucleo-g070rb.h

@@ -108,6 +108,26 @@
  * Public Function Prototypes
  ****************************************************************************/
 
+/****************************************************************************
+ * Name: stm32_timer_driver_setup
+ *
+ * Description:
+ *   Configure the timer driver.
+ *
+ * Input Parameters:
+ *   devpath - The full path to the timer device.  This should be of the form /dev/timer0
+ *   timer   - The timer's number.
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success; A negated errno value is returned
+ *   to indicate the nature of any failure.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_TIMER
+int stm32_timer_driver_setup(FAR const char *devpath, int timer);
+#endif
+
 /*****************************************************************************
  * Name: stm32_bringup
  *

boards/arm/stm32f0l0g0/nucleo-g070rb/src/stm32_bringup.c

@@ -111,6 +111,26 @@ int stm32_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_TIMER
+  /*Initialize basic timers */
+#  if defined(CONFIG_STM32F0L0G0_TIM6)
+  syslog(LOG_ERR, "Init timer\n");
+  ret = stm32_timer_driver_setup("/dev/timer0", 6);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: stm32_timer_driver_setup failed. TIM6: %d\n", ret);
+    }
+#  endif
+#  if defined(CONFIG_STM32F0L0G0_TIM7)
+  ret = stm32_timer_driver_setup("/dev/timer1", 7);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: stm32_timer_driver_setup failed. TIM7: %d\n", ret);
+    }
+
+#  endif
+#endif
+
   UNUSED(ret);
   return OK;
 }