Mercurial > ~darius > hgwebdir.cgi > stm32temp
diff libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/I2C/I2C_TSENSOR/main.c @ 0:c59513fd84fb
Initial commit of STM32 test code.
author | Daniel O'Connor <darius@dons.net.au> |
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date | Mon, 03 Oct 2011 21:19:15 +1030 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/I2C/I2C_TSENSOR/main.c Mon Oct 03 21:19:15 2011 +1030 @@ -0,0 +1,334 @@ +/** + ****************************************************************************** + * @file I2C/I2C_TSENSOR/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" +#include <stdlib.h> +#include "stm32_eval_i2c_tsensor.h" +#include "stm32_eval.h" + +#ifdef USE_STM32100E_EVAL + #include "stm32100e_eval_lcd.h" +#elif defined USE_STM3210E_EVAL + #include "stm3210e_eval_lcd.h" +#elif defined USE_STM32100B_EVAL + #include "stm32100b_eval_lcd.h" +#elif defined USE_STM3210B_EVAL + #include "stm3210b_eval_lcd.h" +#endif + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup I2C_TSENSOR + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus; + +/* Private define ------------------------------------------------------------*/ +#define TEMPERATURE_THYS 31 +#define TEMPERATURE_TOS 32 + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +static uint8_t TempCelsiusDisplay[] = " +abc.d C "; +static uint8_t TempFahrenheitDisplay[] = " +abc.d F "; +static int32_t TempValue = 0, TempValueCelsius = 0, TempValueFahrenheit = 0; +__IO uint8_t SMbusAlertOccurred = 0; +uint32_t index = 0; + +/* Private functions ---------------------------------------------------------*/ +void NVIC_Configuration(void); + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* NVIC Configuration */ + NVIC_Configuration(); + + /* Initialize the LCD */ +#ifdef USE_STM32100E_EVAL + STM32100E_LCD_Init(); +#elif defined USE_STM3210E_EVAL + STM3210E_LCD_Init(); +#elif defined USE_STM32100B_EVAL + STM32100B_LCD_Init(); +#elif defined USE_STM3210B_EVAL + STM3210B_LCD_Init(); +#endif + + +#ifdef USE_STM3210E_EVAL + /* Disable FSMC only for STM32 High-density and XL-density devices */ + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, DISABLE); +#endif /* USE_STM3210E_EVAL */ + + /* Initialize the Temperature Sensor */ + LM75_Init(); + + if (LM75_GetStatus() == SUCCESS) + { +#ifdef USE_STM3210E_EVAL + /* Enable FSMC */ + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE); +#endif /* USE_STM3210E_EVAL */ + + /* Clear the LCD */ + LCD_Clear(LCD_COLOR_WHITE); + + /* Set the Back Color */ + LCD_SetBackColor(LCD_COLOR_BLUE); + + /* Set the Text Color */ + LCD_SetTextColor(LCD_COLOR_GREEN); + + LCD_DisplayStringLine(LCD_LINE_0, " Temperature "); + +#ifdef USE_STM3210E_EVAL + /* Disable FSMC */ + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, DISABLE); + + /* Initialize the Temperature Sensor */ + LM75_Init(); + +#endif /* USE_STM3210E_EVAL */ + + /* Configure the Temperature sensor device STLM75: + - Thermostat mode Interrupt + - Fault tolerance: 00 + */ + LM75_WriteConfReg(0x02); + + /* Configure the THYS and TOS in order to use the SMbus alert interrupt */ + LM75_WriteReg(LM75_REG_THYS, TEMPERATURE_THYS << 8); /*31İC*/ + LM75_WriteReg(LM75_REG_TOS, TEMPERATURE_TOS << 8); /*32İC*/ + + I2C_ClearITPendingBit(LM75_I2C, I2C_IT_SMBALERT); + + SMbusAlertOccurred = 0; + + /* Infinite Loop */ + while (1) + { +#ifdef USE_STM3210E_EVAL + /* Disable FSMC */ + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, DISABLE); + + /* Initialize the Temperature Sensor */ + LM75_Init(); +#endif /* USE_STM3210E_EVAL */ + + /* Get double of Temperature value */ + TempValue = LM75_ReadTemp(); + +#ifdef USE_STM3210E_EVAL + /* Enable FSMC */ + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE); +#endif /* USE_STM3210E_EVAL */ + + if (TempValue <= 256) + { + /* Positive temperature measured */ + TempCelsiusDisplay[7] = '+'; + + /* Initialize the temperature sensor value*/ + TempValueCelsius = TempValue; + } + else + { + /* Negative temperature measured */ + TempCelsiusDisplay[7] = '-'; + /* Remove temperature value sign */ + TempValueCelsius = 0x200 - TempValue; + } + + /* Calculate temperature digits in İC */ + if ((TempValueCelsius & 0x01) == 0x01) + { + TempCelsiusDisplay[12] = 0x05 + 0x30; + TempFahrenheitDisplay[12] = 0x05 + 0x30; + } + else + { + TempCelsiusDisplay[12] = 0x00 + 0x30; + TempFahrenheitDisplay[12] = 0x00 + 0x30; + } + + TempValueCelsius >>= 1; + + TempCelsiusDisplay[8] = (TempValueCelsius / 100) + 0x30; + TempCelsiusDisplay[9] = ((TempValueCelsius % 100) / 10) + 0x30; + TempCelsiusDisplay[10] = ((TempValueCelsius % 100) % 10) + 0x30; + + if (TempValue > 256) + { + if (((9 * TempValueCelsius) / 5) <= 32) + { + /* Convert temperature İC to Fahrenheit */ + TempValueFahrenheit = abs (32 - ((9 * TempValueCelsius) / 5)); + + /* Calculate temperature digits in İF */ + TempFahrenheitDisplay[8] = (TempValueFahrenheit / 100) + 0x30; + TempFahrenheitDisplay[9] = ((TempValueFahrenheit % 100) / 10) + 0x30; + TempFahrenheitDisplay[10] = ((TempValueFahrenheit % 100) % 10) + 0x30; + /* Positive temperature measured */ + TempFahrenheitDisplay[7] = '+'; + } + else + { + /* Convert temperature İC to Fahrenheit */ + TempValueFahrenheit = abs(((9 * TempValueCelsius) / 5) - 32); + /* Calculate temperature digits in İF */ + TempFahrenheitDisplay[8] = (TempValueFahrenheit / 100) + 0x30; + TempFahrenheitDisplay[9] = ((TempValueFahrenheit % 100) / 10) + 0x30; + TempFahrenheitDisplay[10] = ((TempValueFahrenheit % 100) % 10) + 0x30; + + /* Negative temperature measured */ + TempFahrenheitDisplay[7] = '-'; + } + } + else + { + /* Convert temperature İC to Fahrenheit */ + TempValueFahrenheit = ((9 * TempValueCelsius) / 5) + 32; + + /* Calculate temperature digits in İF */ + TempFahrenheitDisplay[8] = (TempValueFahrenheit / 100) + 0x30; + TempFahrenheitDisplay[9] = ((TempValueFahrenheit % 100) / 10) + 0x30; + TempFahrenheitDisplay[10] = ((TempValueFahrenheit % 100) % 10) + 0x30; + + /* Positive temperature measured */ + TempFahrenheitDisplay[7] = '+'; + } + + /* Display Fahrenheit value on LCD */ + for (index = 0; index < 20; index++) + { + LCD_DisplayChar(LCD_LINE_6, (319 - (16 * index)), TempCelsiusDisplay[index]); + + LCD_DisplayChar(LCD_LINE_7, (319 - (16 * index)), TempFahrenheitDisplay[index]); + } + + if (SMbusAlertOccurred == 1) + { + /* Set the Back Color */ + LCD_SetBackColor(LCD_COLOR_BLUE); + /* Set the Text Color */ + LCD_SetTextColor(LCD_COLOR_RED); + LCD_DisplayStringLine(LCD_LINE_2, "Warning: Temp exceed"); + LCD_DisplayStringLine(LCD_LINE_3, " 32 C "); + } + if (SMbusAlertOccurred == 2) + { + /* Set the Back Color */ + LCD_SetBackColor(LCD_COLOR_WHITE); + /* Set the Text Color */ + LCD_SetTextColor(LCD_COLOR_WHITE); + LCD_ClearLine(LCD_LINE_2); + LCD_ClearLine(LCD_LINE_3); + SMbusAlertOccurred = 0; + /* Set the Back Color */ + LCD_SetBackColor(LCD_COLOR_BLUE); + /* Set the Text Color */ + LCD_SetTextColor(LCD_COLOR_GREEN); + } + } + } + else + { + LCD_Clear(LCD_COLOR_WHITE); + LCD_DisplayStringLine(LCD_LINE_2, " LM75 not correctly "); + LCD_DisplayStringLine(LCD_LINE_3, " initialized... "); + LCD_DisplayStringLine(LCD_LINE_4, " Please restart the "); + LCD_DisplayStringLine(LCD_LINE_5, " example. "); + /* Infinite Loop */ + while(1) + { + } + } +} + +/** + * @brief Configures the different interrupt. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* Re-configure and enable I2C2 error interrupt to have the higher priority */ +#ifdef USE_STM32100E_EVAL + NVIC_InitStructure.NVIC_IRQChannel = I2C2_ER_IRQn; +#else + NVIC_InitStructure.NVIC_IRQChannel = I2C1_ER_IRQn; +#endif + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); +} + +#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 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) */ + + /* Infinite loop */ + while (1) + { + } +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/