init, code testing the RTC on the dev-bridge board

10 files changed, 1212 insertions, 0 deletions

diff --git a/src/rtc-test/Makefile b/src/rtc-test/Makefile
new file mode 100644
index 0000000..8af9dfc
--- /dev/null
+++ b/src/rtc-test/Makefile
@@ -0,0 +1,49 @@
+# put your *.o targets here, make should handle the rest!
+SRCS = main.c stm_init.c stm-uart.c stm32f4xx_it.c stm32f4xx_hal_msp.c
+
+# all the files will be generated with this name
+PROJ_NAME=rtc-test
+
+TOPLEVEL=../..
+include $(TOPLEVEL)/common.mk
+
+OBJS = $(SRCS:.c=.o)
+
+###################################################
+
+.PHONY: lib proj
+
+all: lib proj
+
+lib:
+	$(MAKE) -C $(STD_PERIPH_LIB) STDPERIPH_SETTINGS="$(STDPERIPH_SETTINGS) -I $(PWD)/include"
+
+proj: 	$(PROJ_NAME).elf
+
+$(PROJ_NAME).elf: $(SRCS)
+	$(CC) $(CFLAGS) $^ -o $@ -L$(STD_PERIPH_LIB) -lstmf4 -L$(LDSCRIPT_INC) -T$(MCU_LINKSCRIPT) -g
+	$(OBJCOPY) -O ihex $(PROJ_NAME).elf $(PROJ_NAME).hex
+	$(OBJCOPY) -O binary $(PROJ_NAME).elf $(PROJ_NAME).bin
+	$(OBJDUMP) -St $(PROJ_NAME).elf >$(PROJ_NAME).lst
+	$(SIZE) $(PROJ_NAME).elf
+
+clean:
+	find ./ -name '*~' | xargs rm -f
+	rm -f *.o
+	rm -f $(PROJ_NAME).elf
+	rm -f $(PROJ_NAME).hex
+	rm -f $(PROJ_NAME).bin
+	rm -f $(PROJ_NAME).map
+	rm -f $(PROJ_NAME).lst
+
+really-clean: clean
+	$(MAKE) -C $(STD_PERIPH_LIB) clean
+
+debug:
+    $(GDB) -ex "target remote localhost:3333" \
+        -ex "set remote hardware-breakpoint-limit 6" \
+        -ex "set remote hardware-watchpoint-limit 4" $(PROJ_NAME).elf
+
+flash-target:
+	$(OPENOCD) -f $(OPENOCD_BOARD_DIR)/$(OPENOCD_PROC_FILE) \
+		-c "program $(PROJ_NAME).elf verify reset"
diff --git a/src/rtc-test/include/stm-uart.h b/src/rtc-test/include/stm-uart.h
new file mode 100644
index 0000000..53682ac
--- /dev/null
+++ b/src/rtc-test/include/stm-uart.h
@@ -0,0 +1,16 @@
+#ifndef __STM32_DEV_BRIDGE_UART_H
+#define __STM32_DEV_BRIDGE_UART_H
+
+#include "stm32f4xx_hal.h"
+
+#define USART2_BAUD_RATE	921600
+
+extern void uart_send_binary(uint32_t num, uint8_t bits);
+extern void uart_send_string(char *s);
+extern void uart_send_integer(uint32_t data, uint32_t mag);
+extern void uart_send_hexbyte(const uint32_t data);
+extern void uart_send_hexdump(const uint8_t *buf, const uint8_t start_offset, const uint8_t end_offset);
+
+extern UART_HandleTypeDef huart2;
+
+#endif /* __STM32_DEV_BRIDGE_UART_H */
diff --git a/src/rtc-test/include/stm32f4xx_hal_conf.h b/src/rtc-test/include/stm32f4xx_hal_conf.h
new file mode 100644
index 0000000..dc8c5d9
--- /dev/null
+++ b/src/rtc-test/include/stm32f4xx_hal_conf.h
@@ -0,0 +1,401 @@
+/**
+  ******************************************************************************
+  * @file    stm32f4xx_hal_conf.h
+  * @brief   HAL configuration file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F4xx_HAL_CONF_H
+#define __STM32F4xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+  * @brief This is the list of modules to be used in the HAL driver
+  */
+#define HAL_MODULE_ENABLED
+//#define HAL_ADC_MODULE_ENABLED
+//#define HAL_CAN_MODULE_ENABLED
+//#define HAL_CRC_MODULE_ENABLED
+//#define HAL_CRYP_MODULE_ENABLED
+//#define HAL_DAC_MODULE_ENABLED
+//#define HAL_DCMI_MODULE_ENABLED
+//#define HAL_DMA2D_MODULE_ENABLED
+//#define HAL_ETH_MODULE_ENABLED
+//#define HAL_NAND_MODULE_ENABLED
+//#define HAL_NOR_MODULE_ENABLED
+//#define HAL_PCCARD_MODULE_ENABLED
+//#define HAL_SRAM_MODULE_ENABLED
+//#define HAL_SDRAM_MODULE_ENABLED
+//#define HAL_HASH_MODULE_ENABLED
+#define HAL_I2C_MODULE_ENABLED
+//#define HAL_I2S_MODULE_ENABLED
+//#define HAL_IWDG_MODULE_ENABLED
+//#define HAL_LTDC_MODULE_ENABLED
+//#define HAL_RNG_MODULE_ENABLED
+//#define HAL_RTC_MODULE_ENABLED
+//#define HAL_SAI_MODULE_ENABLED
+//#define HAL_SD_MODULE_ENABLED
+//#define HAL_SPI_MODULE_ENABLED
+//#define HAL_TIM_MODULE_ENABLED
+#define HAL_UART_MODULE_ENABLED
+//#define HAL_USART_MODULE_ENABLED
+//#define HAL_IRDA_MODULE_ENABLED
+//#define HAL_SMARTCARD_MODULE_ENABLED
+//#define HAL_WWDG_MODULE_ENABLED
+//#define HAL_PCD_MODULE_ENABLED
+//#define HAL_HCD_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_CORTEX_MODULE_ENABLED
+
+/* ########################## HSE/HSI Values adaptation ##################### */
+/**
+  * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSE is used as system clock source, directly or through the PLL).
+  */
+#if !defined  (HSE_VALUE)
+  #define HSE_VALUE    ((uint32_t)25000000) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined  (HSE_STARTUP_TIMEOUT)
+  #define HSE_STARTUP_TIMEOUT    ((uint32_t)5000)   /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+  * @brief Internal High Speed oscillator (HSI) value.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSI is used as system clock source, directly or through the PLL).
+  */
+#if !defined  (HSI_VALUE)
+  #define HSI_VALUE    ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+  * @brief Internal Low Speed oscillator (LSI) value.
+  */
+#if !defined  (LSI_VALUE)
+ #define LSI_VALUE  ((uint32_t)40000)
+#endif /* LSI_VALUE */                      /*!< Value of the Internal Low Speed oscillator in Hz
+                                             The real value may vary depending on the variations
+                                             in voltage and temperature.  */
+/**
+  * @brief External Low Speed oscillator (LSE) value.
+  */
+#if !defined  (LSE_VALUE)
+ #define LSE_VALUE  ((uint32_t)32768)    /*!< Value of the External Low Speed oscillator in Hz */
+#endif /* LSE_VALUE */
+
+/**
+  * @brief External clock source for I2S peripheral
+  *        This value is used by the I2S HAL module to compute the I2S clock source
+  *        frequency, this source is inserted directly through I2S_CKIN pad.
+  */
+#if !defined  (EXTERNAL_CLOCK_VALUE)
+  #define EXTERNAL_CLOCK_VALUE    ((uint32_t)12288000) /*!< Value of the External audio frequency in Hz*/
+#endif /* EXTERNAL_CLOCK_VALUE */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+   ===  you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+  * @brief This is the HAL system configuration section
+  */
+
+#define  VDD_VALUE					  ((uint32_t)3300) /*!< Value of VDD in mv */
+#define  TICK_INT_PRIORITY            ((uint32_t)0)    /*!< tick interrupt priority */
+#define  USE_RTOS                     0
+#define  PREFETCH_ENABLE              1
+#define  INSTRUCTION_CACHE_ENABLE     1
+#define  DATA_CACHE_ENABLE            1
+
+/* ########################## Assert Selection ############################## */
+/**
+  * @brief Uncomment the line below to expanse the "assert_param" macro in the
+  *        HAL drivers code
+  */
+/* #define USE_FULL_ASSERT    1 */
+
+/* ################## Ethernet peripheral configuration ##################### */
+
+/* Section 1 : Ethernet peripheral configuration */
+
+/* MAC ADDRESS: MAC_ADDR0:MAC_ADDR1:MAC_ADDR2:MAC_ADDR3:MAC_ADDR4:MAC_ADDR5 */
+#define MAC_ADDR0   2
+#define MAC_ADDR1   0
+#define MAC_ADDR2   0
+#define MAC_ADDR3   0
+#define MAC_ADDR4   0
+#define MAC_ADDR5   0
+
+/* Definition of the Ethernet driver buffers size and count */
+#define ETH_RX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for receive               */
+#define ETH_TX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for transmit              */
+#define ETH_RXBUFNB                    ((uint32_t)4)       /* 4 Rx buffers of size ETH_RX_BUF_SIZE  */
+#define ETH_TXBUFNB                    ((uint32_t)4)       /* 4 Tx buffers of size ETH_TX_BUF_SIZE  */
+
+/* Section 2: PHY configuration section */
+
+/* DP83848 PHY Address*/
+#define DP83848_PHY_ADDRESS             0x01
+/* PHY Reset delay these values are based on a 1 ms Systick interrupt*/
+#define PHY_RESET_DELAY                 ((uint32_t)0x000000FF)
+/* PHY Configuration delay */
+#define PHY_CONFIG_DELAY                ((uint32_t)0x00000FFF)
+
+#define PHY_READ_TO                     ((uint32_t)0x0000FFFF)
+#define PHY_WRITE_TO                    ((uint32_t)0x0000FFFF)
+
+/* Section 3: Common PHY Registers */
+
+#define PHY_BCR                         ((uint16_t)0x00)    /*!< Transceiver Basic Control Register   */
+#define PHY_BSR                         ((uint16_t)0x01)    /*!< Transceiver Basic Status Register    */
+
+#define PHY_RESET                       ((uint16_t)0x8000)  /*!< PHY Reset */
+#define PHY_LOOPBACK                    ((uint16_t)0x4000)  /*!< Select loop-back mode */
+#define PHY_FULLDUPLEX_100M             ((uint16_t)0x2100)  /*!< Set the full-duplex mode at 100 Mb/s */
+#define PHY_HALFDUPLEX_100M             ((uint16_t)0x2000)  /*!< Set the half-duplex mode at 100 Mb/s */
+#define PHY_FULLDUPLEX_10M              ((uint16_t)0x0100)  /*!< Set the full-duplex mode at 10 Mb/s  */
+#define PHY_HALFDUPLEX_10M              ((uint16_t)0x0000)  /*!< Set the half-duplex mode at 10 Mb/s  */
+#define PHY_AUTONEGOTIATION             ((uint16_t)0x1000)  /*!< Enable auto-negotiation function     */
+#define PHY_RESTART_AUTONEGOTIATION     ((uint16_t)0x0200)  /*!< Restart auto-negotiation function    */
+#define PHY_POWERDOWN                   ((uint16_t)0x0800)  /*!< Select the power down mode           */
+#define PHY_ISOLATE                     ((uint16_t)0x0400)  /*!< Isolate PHY from MII                 */
+
+#define PHY_AUTONEGO_COMPLETE           ((uint16_t)0x0020)  /*!< Auto-Negotiation process completed   */
+#define PHY_LINKED_STATUS               ((uint16_t)0x0004)  /*!< Valid link established               */
+#define PHY_JABBER_DETECTION            ((uint16_t)0x0002)  /*!< Jabber condition detected            */
+
+/* Section 4: Extended PHY Registers */
+
+#define PHY_SR                          ((uint16_t)0x10)    /*!< PHY status register Offset                      */
+#define PHY_MICR                        ((uint16_t)0x11)    /*!< MII Interrupt Control Register                  */
+#define PHY_MISR                        ((uint16_t)0x12)    /*!< MII Interrupt Status and Misc. Control Register */
+
+#define PHY_LINK_STATUS                 ((uint16_t)0x0001)  /*!< PHY Link mask                                   */
+#define PHY_SPEED_STATUS                ((uint16_t)0x0002)  /*!< PHY Speed mask                                  */
+#define PHY_DUPLEX_STATUS               ((uint16_t)0x0004)  /*!< PHY Duplex mask                                 */
+
+#define PHY_MICR_INT_EN                 ((uint16_t)0x0002)  /*!< PHY Enable interrupts                           */
+#define PHY_MICR_INT_OE                 ((uint16_t)0x0001)  /*!< PHY Enable output interrupt events              */
+
+#define PHY_MISR_LINK_INT_EN            ((uint16_t)0x0020)  /*!< Enable Interrupt on change of link status       */
+#define PHY_LINK_INTERRUPT              ((uint16_t)0x2000)  /*!< PHY link status interrupt mask                  */
+
+/* Includes ------------------------------------------------------------------*/
+/**
+  * @brief Include module's header file
+  */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+  #include "stm32f4xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+  #include "stm32f4xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+  #include "stm32f4xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+  #include "stm32f4xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+  #include "stm32f4xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+  #include "stm32f4xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+  #include "stm32f4xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_CRYP_MODULE_ENABLED
+  #include "stm32f4xx_hal_cryp.h"
+#endif /* HAL_CRYP_MODULE_ENABLED */
+
+#ifdef HAL_DMA2D_MODULE_ENABLED
+  #include "stm32f4xx_hal_dma2d.h"
+#endif /* HAL_DMA2D_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+  #include "stm32f4xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_DCMI_MODULE_ENABLED
+  #include "stm32f4xx_hal_dcmi.h"
+#endif /* HAL_DCMI_MODULE_ENABLED */
+
+#ifdef HAL_ETH_MODULE_ENABLED
+  #include "stm32f4xx_hal_eth.h"
+#endif /* HAL_ETH_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+  #include "stm32f4xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+#ifdef HAL_SRAM_MODULE_ENABLED
+  #include "stm32f4xx_hal_sram.h"
+#endif /* HAL_SRAM_MODULE_ENABLED */
+
+#ifdef HAL_NOR_MODULE_ENABLED
+  #include "stm32f4xx_hal_nor.h"
+#endif /* HAL_NOR_MODULE_ENABLED */
+
+#ifdef HAL_NAND_MODULE_ENABLED
+  #include "stm32f4xx_hal_nand.h"
+#endif /* HAL_NAND_MODULE_ENABLED */
+
+#ifdef HAL_PCCARD_MODULE_ENABLED
+  #include "stm32f4xx_hal_pccard.h"
+#endif /* HAL_PCCARD_MODULE_ENABLED */
+
+#ifdef HAL_SDRAM_MODULE_ENABLED
+  #include "stm32f4xx_hal_sdram.h"
+#endif /* HAL_SDRAM_MODULE_ENABLED */
+
+#ifdef HAL_HASH_MODULE_ENABLED
+ #include "stm32f4xx_hal_hash.h"
+#endif /* HAL_HASH_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32f4xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32f4xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32f4xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_LTDC_MODULE_ENABLED
+ #include "stm32f4xx_hal_ltdc.h"
+#endif /* HAL_LTDC_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32f4xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_RNG_MODULE_ENABLED
+ #include "stm32f4xx_hal_rng.h"
+#endif /* HAL_RNG_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32f4xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SAI_MODULE_ENABLED
+ #include "stm32f4xx_hal_sai.h"
+#endif /* HAL_SAI_MODULE_ENABLED */
+
+#ifdef HAL_SD_MODULE_ENABLED
+ #include "stm32f4xx_hal_sd.h"
+#endif /* HAL_SD_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32f4xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32f4xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32f4xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32f4xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32f4xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32f4xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32f4xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32f4xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_HCD_MODULE_ENABLED
+ #include "stm32f4xx_hal_hcd.h"
+#endif /* HAL_HCD_MODULE_ENABLED */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef  USE_FULL_ASSERT
+/**
+  * @brief  The assert_param macro is used for function's parameters check.
+  * @param  expr: If expr is false, it calls assert_failed function
+  *         which reports the name of the source file and the source
+  *         line number of the call that failed.
+  *         If expr is true, it returns no value.
+  * @retval None
+  */
+  #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+  void assert_failed(uint8_t* file, uint32_t line);
+#else
+  #define assert_param(expr) ((void)0)
+#endif /* USE_FULL_ASSERT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F4xx_HAL_CONF_H */
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/src/rtc-test/include/stm32f4xx_it.h b/src/rtc-test/include/stm32f4xx_it.h
new file mode 100644
index 0000000..e5bfe85
--- /dev/null
+++ b/src/rtc-test/include/stm32f4xx_it.h
@@ -0,0 +1,57 @@
+/**
+  ******************************************************************************
+  * @file    stm32f4xx_it.h
+  * @date    08/07/2015 17:46:00
+  * @brief   This file contains the headers of the interrupt handlers.
+  ******************************************************************************
+  *
+  * COPYRIGHT(c) 2015 STMicroelectronics
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F4xx_IT_H
+#define __STM32F4xx_IT_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions ------------------------------------------------------- */
+
+void SysTick_Handler(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F4xx_IT_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/src/rtc-test/include/stm_init.h b/src/rtc-test/include/stm_init.h
new file mode 100644
index 0000000..b9dbd10
--- /dev/null
+++ b/src/rtc-test/include/stm_init.h
@@ -0,0 +1,17 @@
+#ifndef __STM_INIT_H
+#define __STM_INIT_H
+
+#include "stm32f4xx_hal.h"
+
+#define LED_PORT	GPIOJ
+#define LED_RED		GPIO_PIN_1
+#define LED_YELLOW	GPIO_PIN_2
+#define LED_GREEN	GPIO_PIN_3
+#define LED_BLUE	GPIO_PIN_4
+
+extern UART_HandleTypeDef huart2;
+extern I2C_HandleTypeDef hi2c2;
+extern void stm_init(void);
+extern void Error_Handler(void);
+
+#endif /* __STM_INIT_H */
diff --git a/src/rtc-test/src/main.c b/src/rtc-test/src/main.c
new file mode 100644
index 0000000..54730f6
--- /dev/null
+++ b/src/rtc-test/src/main.c
@@ -0,0 +1,184 @@
+/*
+ * Test code for the RTC.
+ *
+ * Dumps the SRAM and EEPROM on startup, then enables the oscillator.
+ * After that, the clock registers are read once a second - the first byte
+ * is seconds (and some control bits, so dont expect 0..59).
+ *
+ */
+#include <string.h>
+
+#include "stm_init.h"
+#include "stm-uart.h"
+
+#define DELAY() HAL_Delay(1000)
+
+#define RTC_ADDR			0xdf
+#define EEPROM_ADDR			0xaf
+
+#define RTC_ADDR_W			RTC_ADDR ^ 1	/* turn off LSB to write */
+#define EEPROM_ADDR_W			EEPROM_ADDR ^ 1	/* turn off LSB to write */
+
+#define SRAM_TOTAL_BYTES		0x5f
+#define EEPROM_TOTAL_BYTES		0x7f
+
+#define EEPROM_EUI48_OFFSET		0xf0
+#define EEPROM_EUI48_BYTES		8
+
+#define TIME_OFFSET			0x0  /* Time is at offest 0 in SRAM */
+#define TIME_BYTES			8
+
+
+uint8_t buf[1024];
+uint32_t i;
+
+
+uint32_t device_ready(uint16_t i2c_addr)
+{
+  uart_send_string("Checking readiness of 0x");
+  uart_send_hexbyte(i2c_addr);
+  uart_send_string("...");
+
+  i = HAL_I2C_IsDeviceReady (&hi2c2, i2c_addr, 10, 1000);
+  if (i == HAL_OK) {
+    uart_send_string("OK\r\n");
+    return 1;
+  }
+
+  uart_send_string("Not ready (");
+  uart_send_integer(i, 0);
+  uart_send_string(")\r\n");
+
+  return 0;
+}
+
+
+void send_byte(const uint16_t i2c_addr, const uint8_t value)
+{
+  uint8_t ch = value;
+
+  uart_send_string ("Sending ");
+  uart_send_hexbyte (ch);
+  uart_send_string (" to 0x");
+  uart_send_hexbyte(i2c_addr);
+  uart_send_string("...");
+
+  while (HAL_I2C_Master_Transmit (&hi2c2, i2c_addr, &ch, 1, 1000) != HAL_OK) {
+    if (HAL_I2C_GetError (&hi2c2) != HAL_I2C_ERROR_AF) {
+      uart_send_string("Timeout\r\n");
+      Error_Handler();
+    }
+  }
+
+  uart_send_string("OK\r\n");
+}
+
+void read_bytes (uint8_t *buf, const uint16_t i2c_addr, const uint8_t len)
+{
+  uart_send_string ("Reading ");
+  uart_send_integer (len, 0);
+  uart_send_string (" bytes from 0x");
+  uart_send_hexbyte(i2c_addr);
+  uart_send_string("...");
+
+  while (HAL_I2C_Master_Receive (&hi2c2, i2c_addr, buf, len, 1000) != HAL_OK) {
+    if (HAL_I2C_GetError (&hi2c2) != HAL_I2C_ERROR_AF) {
+      uart_send_string("Timeout\r\n");
+      Error_Handler();
+    }
+  }
+
+  uart_send_string("OK\r\n");
+}
+
+void request_data(uint8_t *buf, const uint16_t i2c_addr, const uint8_t offset, const uint8_t bytes)
+{
+  send_byte(i2c_addr, offset);
+  read_bytes(buf, i2c_addr, bytes);
+}
+
+void print_time()
+{
+  request_data(buf, RTC_ADDR, TIME_OFFSET, TIME_BYTES);
+
+  for (i = 0; i < TIME_BYTES; i++) {
+    uart_send_hexbyte(buf[i]);
+    uart_send_string(" ");
+  }
+}
+
+void dump_sram()
+{
+  request_data(buf, RTC_ADDR, 0x0, SRAM_TOTAL_BYTES);
+
+  uart_send_string("SRAM contents:\r\n");
+  uart_send_hexdump(buf, 0, SRAM_TOTAL_BYTES);
+
+  uart_send_string("\r\n");
+}
+
+void dump_eeprom()
+{
+  request_data(buf, EEPROM_ADDR, 0x0, EEPROM_TOTAL_BYTES);
+
+  uart_send_string("EEPROM contents:\r\n");
+  uart_send_hexdump(buf, 0, EEPROM_TOTAL_BYTES);
+  uart_send_string("\r\n");
+
+  request_data(buf, EEPROM_ADDR, EEPROM_EUI48_OFFSET, EEPROM_EUI48_BYTES);
+  uart_send_string("EEPROM EUI-48:\r\n");
+  uart_send_hexdump(buf, EEPROM_EUI48_OFFSET, EEPROM_EUI48_BYTES);
+
+  uart_send_string("\r\n");
+}
+
+void enable_oscillator()
+{
+  uart_send_string("Enabling oscillator...\r\n");
+
+  buf[0] = 0;		/* Offset of RTCSEC */
+  buf[1] = 1 << 7;	/* datasheet REGISTERS 5-1, bit 7 = ST (start oscillator) */
+
+  while (HAL_I2C_Master_Transmit (&hi2c2, RTC_ADDR_W, buf, 2, 1000) != HAL_OK) {
+    if (HAL_I2C_GetError (&hi2c2) != HAL_I2C_ERROR_AF) {
+      uart_send_string("Timeout\r\n");
+      Error_Handler();
+    }
+  }
+
+  uart_send_string("OK\r\n");
+}
+
+
+int
+main()
+{
+  stm_init();
+  uart_send_string("\r\n\r\n*** Init done\r\n");
+
+  dump_sram();
+  dump_eeprom();
+
+  enable_oscillator();
+
+  while (1)
+  {
+    memset(buf, 0, sizeof(buf));
+
+    if (! device_ready(RTC_ADDR)) {
+      goto fail;
+    }
+
+    print_time(buf);
+
+    uart_send_string("\r\n\r\n");
+
+    HAL_GPIO_TogglePin(LED_PORT, LED_GREEN);
+    DELAY();
+    continue;
+
+  fail:
+    HAL_GPIO_TogglePin(LED_PORT, LED_RED);
+    DELAY();
+  }
+}
diff --git a/src/rtc-test/src/stm-uart.c b/src/rtc-test/src/stm-uart.c
new file mode 100644
index 0000000..c98a889
--- /dev/null
+++ b/src/rtc-test/src/stm-uart.c
@@ -0,0 +1,109 @@
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+#include "stm-uart.h"
+
+#include <string.h>
+
+extern void Error_Handler();
+
+UART_HandleTypeDef huart2;
+
+
+/* Private variables ---------------------------------------------------------*/
+
+/* Private function prototypes -----------------------------------------------*/
+
+inline void uart_putc(uint8_t *ch) {
+  HAL_UART_Transmit(&huart2, ch, 1, 0x1);
+}
+
+void uart_send_binary(uint32_t num, uint8_t bits)
+{
+  uint32_t i;
+  unsigned char ch;
+
+  bits--;  /* bits 4 should give i = 1000, not 10000 */
+
+  i = 1 << bits;
+  while (i) {
+    ch = '0';
+    if (num & i) {
+      ch = '1';
+    }
+
+    uart_putc(&ch);
+    i = i >> 1;
+  }
+}
+
+void uart_send_string(char *s)
+{
+  HAL_UART_Transmit(&huart2, (uint8_t *) s, strlen(s), 0x1);
+}
+
+void uart_send_integer(uint32_t data, uint32_t mag) {
+  uint32_t i, t;
+  unsigned char ch;
+
+  if (! mag) {
+    /* Find magnitude */
+    if (data < 10) {
+      ch = '0' + data;
+      HAL_UART_Transmit(&huart2, (uint8_t *) &ch, 1, 0x1);
+      return;
+    }
+
+    for (mag = 10; mag < data; mag = i) {
+      i = mag * 10;
+      if (i > data || i < mag)
+        break;
+    }
+  }
+  /* mag is now 10 if data is 45, and 1000 if data is 1009 */
+  for (i = mag; i; i /= 10) {
+    t = (data / i);
+    ch = '0' + t;
+    HAL_UART_Transmit(&huart2, (uint8_t *) &ch, 1, 0x1);
+    data -= (t * i);
+  }
+}
+
+void uart_send_hexbyte(const uint32_t data)
+{
+  int i, j = 8;
+  uint8_t ch;
+
+  while (j) {
+    j -= 4;
+    i = (data >> j) & 0x0f;
+    if (i > 9) {
+      ch = 'a' + i - 10;
+      uart_putc(&ch);
+    } else {
+      ch = '0' + i;
+      uart_putc(&ch);
+    }
+  }
+}
+
+void uart_send_hexdump(const uint8_t *buf, const uint8_t start_offset, const uint8_t end_offset)
+{
+  uint32_t i;
+
+  uart_send_string("00 -- ");
+
+  for (i = 0; i <= end_offset; i++) {
+    if (i && (! (i % 16))) {
+      uart_send_string("\r\n");
+
+      if (i != end_offset) {
+	/* Output new offset unless the last byte is reached */
+	uart_send_hexbyte(i);
+	uart_send_string(" -- ");
+      }
+    }
+
+    uart_send_hexbyte(*(buf + i));
+    uart_send_string(" ");
+  }
+}
diff --git a/src/rtc-test/src/stm32f4xx_hal_msp.c b/src/rtc-test/src/stm32f4xx_hal_msp.c
new file mode 100644
index 0000000..5d07889
--- /dev/null
+++ b/src/rtc-test/src/stm32f4xx_hal_msp.c
@@ -0,0 +1,126 @@
+/**
+  ******************************************************************************
+  * File Name          : stm32f4xx_hal_msp.c
+  * Date               : 08/07/2015 17:46:00
+  * Description        : This file provides code for the MSP Initialization
+  *                      and de-Initialization codes.
+  ******************************************************************************
+  *
+  * COPYRIGHT(c) 2015 STMicroelectronics
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+#include "stm_init.h"
+
+void HAL_UART_MspInit(UART_HandleTypeDef* huart)
+{
+  GPIO_InitTypeDef GPIO_InitStruct;
+  int i;
+
+  if (huart->Instance == USART2) {
+    /* Peripheral clock enable */
+    __USART2_CLK_ENABLE();
+    __GPIOA_CLK_ENABLE();
+
+    /**USART2 GPIO Configuration
+    PA2     ------> USART2_TX
+    PA3     ------> USART2_RX
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_2 | GPIO_PIN_3;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Pull = GPIO_PULLUP;
+    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
+    GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+    for (i = 0; i < 10; i++) {
+      HAL_GPIO_TogglePin(LED_PORT, LED_RED);
+      HAL_Delay(50);
+    }
+  }
+
+}
+
+void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
+{
+  if (huart->Instance == USART2) {
+    /* Peripheral clock disable */
+    __USART2_CLK_DISABLE();
+
+    /**USART2 GPIO Configuration
+    PA2     ------> USART2_TX
+    PA3     ------> USART2_RX
+    */
+    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2 | GPIO_PIN_3);
+  }
+}
+
+void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
+{
+
+  GPIO_InitTypeDef GPIO_InitStruct;
+  if (hi2c->Instance == I2C2) {
+    /**I2C2 GPIO Configuration
+     //PF0     ------> I2C2_SDA
+     //PF1     ------> I2C2_SCL
+
+     PH5     ------> I2C2_SDA
+     PH4     ------> I2C2_SCL
+    */
+
+    __GPIOH_CLK_ENABLE();
+
+    GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+    GPIO_InitStruct.Pull = GPIO_PULLUP;
+    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
+    GPIO_InitStruct.Alternate = GPIO_AF4_I2C2;
+    HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);
+
+    /* Peripheral clock enable */
+    __I2C2_CLK_ENABLE();
+  }
+
+}
+
+void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
+{
+
+  if(hi2c->Instance==I2C2) {
+    /* Peripheral clock disable */
+    __I2C2_CLK_DISABLE();
+
+    /**I2C2 GPIO Configuration
+    PF0     ------> I2C2_SDA
+    PF1     ------> I2C2_SCL
+    */
+    HAL_GPIO_DeInit(GPIOF, GPIO_PIN_0|GPIO_PIN_1);
+  }
+}
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/src/rtc-test/src/stm32f4xx_it.c b/src/rtc-test/src/stm32f4xx_it.c
new file mode 100644
index 0000000..b816d0d
--- /dev/null
+++ b/src/rtc-test/src/stm32f4xx_it.c
@@ -0,0 +1,54 @@
+/**
+  ******************************************************************************
+  * @file    stm32f4xx_it.c
+  * @date    08/07/2015 17:45:59
+  * @brief   Interrupt Service Routines.
+  ******************************************************************************
+  *
+  * COPYRIGHT(c) 2015 STMicroelectronics
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+#include "stm32f4xx.h"
+#include "stm32f4xx_it.h"
+
+/* External variables --------------------------------------------------------*/
+
+/******************************************************************************/
+/*            Cortex-M4 Processor Interruption and Exception Handlers         */
+/******************************************************************************/
+
+/**
+* @brief This function handles System tick timer.
+*/
+void SysTick_Handler(void)
+{
+  HAL_IncTick();
+  HAL_SYSTICK_IRQHandler();
+}
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/src/rtc-test/src/stm_init.c b/src/rtc-test/src/stm_init.c
new file mode 100644
index 0000000..9da39f8
--- /dev/null
+++ b/src/rtc-test/src/stm_init.c
@@ -0,0 +1,199 @@
+/**
+  ******************************************************************************
+  * File Name          : main.c
+  * Date               : 08/07/2015 17:46:00
+  * Description        : Main program body
+  ******************************************************************************
+  *
+  * COPYRIGHT(c) 2015 STMicroelectronics
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm_init.h"
+#include "stm-uart.h"
+#include "stm32f4xx_hal.h"
+
+//UART_HandleTypeDef huart2;
+I2C_HandleTypeDef hi2c2;
+
+/* Private variables ---------------------------------------------------------*/
+static GPIO_InitTypeDef  GPIO_InitStruct;
+
+/* Private function prototypes -----------------------------------------------*/
+void SystemClock_Config(void);
+static void MX_GPIO_Init(void);
+static void MX_I2C2_Init(void);
+static void MX_USART2_UART_Init(void);
+
+void stm_init(void)
+{
+
+  /* MCU Configuration----------------------------------------------------------*/
+
+  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
+  HAL_Init();
+
+  /* Configure the system clock */
+  SystemClock_Config();
+
+  /* System interrupt init*/
+  /* Sets the priority grouping field */
+  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_0);
+  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
+
+  /* Initialize all configured peripherals */
+  MX_GPIO_Init();
+  MX_I2C2_Init();
+  MX_USART2_UART_Init();
+}
+
+/** System Clock Configuration
+ *
+ * HSE crystal at 25 MHz, end result is 180 MHz clock.
+ */
+void SystemClock_Config(void)
+{
+  RCC_ClkInitTypeDef RCC_ClkInitStruct;
+  RCC_OscInitTypeDef RCC_OscInitStruct;
+
+  __PWR_CLK_ENABLE();
+
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
+
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLM = 25;
+  RCC_OscInitStruct.PLL.PLLN = 360;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+  RCC_OscInitStruct.PLL.PLLQ = 4;
+  HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+  HAL_PWREx_ActivateOverDrive();
+
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
+  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
+}
+
+/* I2C2 init function */
+void MX_I2C2_Init(void)
+{
+
+  hi2c2.Instance = I2C2;
+  hi2c2.Init.ClockSpeed = 10000;
+  hi2c2.Init.DutyCycle = I2C_DUTYCYCLE_2;
+  hi2c2.Init.OwnAddress1 = 0;  /* Will operate as Master */
+  hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+  hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED;
+  hi2c2.Init.OwnAddress2 = 0;
+  hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED;
+  hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED;
+
+  if (HAL_I2C_Init(&hi2c2) != HAL_OK) {
+      Error_Handler();
+  }
+
+  //HAL_I2C_Init(&hi2c2);
+}
+
+/* USART2 init function */
+void MX_USART2_UART_Init(void)
+{
+  huart2.Instance = USART2;
+  huart2.Init.BaudRate = USART2_BAUD_RATE;
+  huart2.Init.WordLength = UART_WORDLENGTH_8B;
+  huart2.Init.StopBits = UART_STOPBITS_1;
+  huart2.Init.Parity = UART_PARITY_NONE;
+  huart2.Init.Mode = UART_MODE_TX_RX;
+  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
+  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
+
+  if (HAL_UART_Init(&huart2) != HAL_OK) {
+    /* Initialization Error */
+    Error_Handler();
+  }
+}
+
+/* LED init function */
+void MX_GPIO_Init(void)
+{
+  /* GPIO Ports Clock Enable */
+  __GPIOJ_CLK_ENABLE();
+
+  /* Configure LED GPIO pins PJ1==red, PJ2==yellow, PJ3==green, PJ4==blue */
+  GPIO_InitStruct.Pin = LED_RED | LED_YELLOW | LED_GREEN | LED_BLUE;
+  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
+  HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
+}
+
+/**
+ * @brief  This function is executed in case of error occurrence.
+ * @param  None
+ * @retval None
+ */
+void Error_Handler(void)
+{
+  HAL_GPIO_WritePin(LED_PORT, LED_RED, GPIO_PIN_SET);
+  while (1) { ; }
+}
+
+#ifdef USE_FULL_ASSERT
+
+/**
+   * @brief Reports the name of the source file and the source line number
+   * where the assert_param error has occurred.
+   * @param file: pointer to the source file name
+   * @param line: assert_param error line source number
+   * @retval None
+   */
+void assert_failed(uint8_t* file, uint32_t line)
+{
+  /* USER CODE BEGIN 6 */
+  /* User can add his own implementation to report the file name and line number,
+    ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
+  /* USER CODE END 6 */
+
+}
+
+#endif
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/