Library for Modtronix NZ32 STM32 boards, like the NZ32-SC151, NZ32-SB072, NZ32-SE411 and others
nz32s.h
- Committer:
- modtronix
- Date:
- 2015-08-30
- Revision:
- 5:e1297df8ee0d
- Parent:
- 3:99cb87ee1792
- Child:
- 7:709130701ac7
File content as of revision 5:e1297df8ee0d:
/** * File: nz32s.h * * Author: Modtronix Engineering - www.modtronix.com * * Description: * * Software License Agreement: * This software has been written or modified by Modtronix Engineering. The code * may be modified and can be used free of charge for commercial and non commercial * applications. If this is modified software, any license conditions from original * software also apply. Any redistribution must include reference to 'Modtronix * Engineering' and web link(www.modtronix.com) in the file header. * * THIS SOFTWARE IS PROVIDED IN AN 'AS IS' CONDITION. NO WARRANTIES, WHETHER EXPRESS, * IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE * COMPANY SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. */ #ifndef NZ32S_H_ #define NZ32S_H_ #include "mbed.h" #include "nz32s_default_config.h" #ifdef __cplusplus extern "C" { #endif #ifndef WEAK #if defined (__ICCARM__) #define WEAK __weak #else #define WEAK __attribute__((weak)) #endif #endif class NZ32S { public: /** Toggle System LED1 */ static inline void toggle_led1(void) { led1 = !led1; } /** Set System LED1 */ static inline void set_led1(void) { led1 = 1; } /** Set System LED1 */ static inline void clear_led1(void) { led1 = 0; } /** Set System LED1 */ static inline void write_led1(bool val) { led1 = val; } /** Get state of button1 */ static inline bool get_btn1(void) { return (bool)btn1.read(); } /** Enable fast charging * This function will enable fast charging of the battery. Ensure solder jumper labeled * "Fast Charge" (J13 on NZ32-SC151) on the back of the board is made! */ static inline void enable_fast_charging(void) { #if (DONT_USE_A13_A14 == 0) asdf enableFastCharge.output(); enableFastCharge = 0; #endif } /** Disable fast charging */ static inline void disable_fast_charging(void) { #if (DONT_USE_A13_A14 == 0) NZ32S::enableFastCharge.input(); NZ32S::enableFastCharge.mode(PullNone); #endif } /** Get the battery voltage. */ static uint16_t get_batt_mv(); /** * Get Vusb or 5V supply voltage in millivolts. */ static uint16_t get_supply_mv(void); /** * Reset I2C bus */ static void i2c_reset(uint8_t busNumber, PinName sda, PinName scl); /** Initializes and start the IWDG Watchdog timer with given timerout. * After calling this function, watchdog_refresh() function must be called before the * timeout expires, else the MCU will be reset. * * @param timeout The timeout in ms. Must be a value from 1 to 32000 (1ms to 32 seconds) */ static inline void watchdog_start(uint32_t timeout) { //Watchdog frequency is always 32 kHz //Prescaler: Min_Value = 4 and Max_Value = 256 //Reload: Min_Data = 0 and Max_Data = 0x0FFF(4000) //TimeOut in seconds = (Reload * Prescaler) / Freq. //MinTimeOut = (4 * 1) / 32000 = 0.000125 seconds (125 microseconds) //MaxTimeOut = (256 * 4096) / 32000 = 32.768 seconds NZ32S::hiwdg.Instance = IWDG; //MXH_DEBUG("\r\nwatchdog_start() called!!!!!!!!!!!!!!"); //For values below 4000, use IWDG_PRESCALER_32. This will cause timeout period to be //equal to 'timeout' value in ms if(timeout < 4000) { NZ32S::hiwdg.Init.Prescaler = IWDG_PRESCALER_32; NZ32S::hiwdg.Init.Reload = timeout; //Timeout = (32 * timeout) / 32000 = (timeout) ms } else { NZ32S::hiwdg.Init.Prescaler = IWDG_PRESCALER_256; NZ32S::hiwdg.Init.Reload = timeout/8; //Timeout = (256 * (timeout/8)) / 32000 } HAL_IWDG_Init(&NZ32S::hiwdg); //Start the watchdog timer HAL_IWDG_Start(&NZ32S::hiwdg); } /** Refreshes the IWDG */ static inline void watchdog_refresh(void) { HAL_IWDG_Refresh(&NZ32S::hiwdg); } /** Return true if last reset was caused by watchdog timer * * @param clearFlags If set, will clear ALL reset flags! Note that not only the * watchdog flag, but ALL reset flags located in RCC_CSR register are cleared! */ static inline bool watchdog_caused_reset(bool clearFlags) { bool retVal; retVal = __HAL_RCC_GET_FLAG(RCC_FLAG_IWDGRST)==0?false:true; if (clearFlags==true) { __HAL_RCC_CLEAR_RESET_FLAGS(); // The flags cleared after use } return retVal; } /** Print the cause of last reset * * @param clearFlags If set, will clear ALL reset flags! Note that not only the * watchdog flag, but ALL reset flags located in RCC_CSR register are cleared! */ static inline void print_reset_cause(bool clearFlags); public: static IWDG_HandleTypeDef hiwdg; //Watchdog Timer static DigitalOut led1; static DigitalIn btn1; #if (DONT_USE_A13_A14 == 0) static DigitalInOut enableFastCharge; #endif }; #ifdef __cplusplus }; #endif #endif //NZ32S_H_