1 files changed, 97 insertions, 0 deletions
diff --git a/os/hal/platforms/STM32L1xx/hal_lld.c b/os/hal/platforms/STM32L1xx/hal_lld.c
new file mode 100644
index 000000000..956ad9fcc
--- /dev/null
+++ b/os/hal/platforms/STM32L1xx/hal_lld.c
@@ -0,0 +1,97 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+                 2011 Giovanni Di Sirio.
+
+    This file is part of ChibiOS/RT.
+
+    ChibiOS/RT 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.
+
+    ChibiOS/RT 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/>.
+*/
+
+/**
+ * @file    STM32L1xx/hal_lld.c
+ * @brief   STM32L1xx HAL subsystem low level driver source.
+ *
+ * @addtogroup HAL
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#define AIRCR_VECTKEY           0x05FA0000
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   Low level HAL driver initialization.
+ *
+ * @notapi
+ */
+void hal_lld_init(void) {
+
+  /* Reset of all peripherals.*/
+  RCC->APB1RSTR = 0xFFFFFFFF;
+  RCC->APB2RSTR = 0xFFFFFFFF;
+  RCC->APB1RSTR = 0;
+  RCC->APB2RSTR = 0;
+
+  /* SysTick initialization using the system clock.*/
+  SysTick->LOAD = STM32_HCLK / CH_FREQUENCY - 1;
+  SysTick->VAL = 0;
+  SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
+                  SysTick_CTRL_ENABLE_Msk |
+                  SysTick_CTRL_TICKINT_Msk;
+
+#if defined(STM32_DMA_REQUIRED)
+  dmaInit();
+#endif
+}
+
+/**
+ * @brief   STM32L1xx clocks and PLL initialization.
+ * @note    All the involved constants come from the file @p board.h.
+ * @note    This function must be invoked only after the system reset.
+ *
+ * @special
+ */
+#if defined(STM32L1XX_MD) || defined(__DOXYGEN__)
+/*
+ * Clocks initialization for the LD, MD and HD sub-families.
+ */
+void stm32_clock_init(void) {
+
+}
+#else
+void stm32_clock_init(void) {}
+#endif
+
+/** @} */