/**
******************************************************************************
* @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.
*
*
© COPYRIGHT 2011 STMicroelectronics
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include
#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****/