Add new TemperatureDataLogger project, a simple USB Mass Storage class Temperature Data Logger using the onboard Dataflash and Temperature sensor.

1 files changed, 187 insertions, 0 deletions

diff --git a/Projects/TemperatureDataLogger/TempDataLogger.c b/Projects/TemperatureDataLogger/TempDataLogger.c
new file mode 100644
index 000000000..6cb1792a4
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+++ b/Projects/TemperatureDataLogger/TempDataLogger.c
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+/*

+             LUFA Library

+     Copyright (C) Dean Camera, 2009.

+              

+  dean [at] fourwalledcubicle [dot] com

+      www.fourwalledcubicle.com

+*/

+

+/*

+  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)

+

+  Permission to use, copy, modify, distribute, and sell this 

+  software and its documentation for any purpose is hereby granted

+  without fee, provided that the above copyright notice appear in 

+  all copies and that both that the copyright notice and this

+  permission notice and warranty disclaimer appear in supporting 

+  documentation, and that the name of the author not be used in 

+  advertising or publicity pertaining to distribution of the 

+  software without specific, written prior permission.

+

+  The author disclaim all warranties with regard to this

+  software, including all implied warranties of merchantability

+  and fitness.  In no event shall the author be liable for any

+  special, indirect or consequential damages or any damages

+  whatsoever resulting from loss of use, data or profits, whether

+  in an action of contract, negligence or other tortious action,

+  arising out of or in connection with the use or performance of

+  this software.

+*/

+

+/** \file

+ *

+ *  Main source file for the TemperatureDataLogger project. This file contains the main tasks of

+ *  the project and is responsible for the initial application hardware configuration.

+ */

+

+#include "TempDataLogger.h"

+

+/** LUFA Mass Storage Class driver interface configuration and state information. This structure is

+ *  passed to all Mass Storage Class driver functions, so that multiple instances of the same class

+ *  within a device can be differentiated from one another.

+ */

+USB_ClassInfo_MS_Device_t Disk_MS_Interface =

+	{

+		.Config =

+			{

+				.InterfaceNumber           = 0,

+

+				.DataINEndpointNumber      = MASS_STORAGE_IN_EPNUM,

+				.DataINEndpointSize        = MASS_STORAGE_IO_EPSIZE,

+				.DataINEndpointDoubleBank  = false,

+

+				.DataOUTEndpointNumber     = MASS_STORAGE_OUT_EPNUM,

+				.DataOUTEndpointSize       = MASS_STORAGE_IO_EPSIZE,

+				.DataOUTEndpointDoubleBank = false,

+

+				.TotalLUNs                 = 1,

+			},

+	};

+

+/** FAT Fs structure to hold the internal state of the FAT driver for the dataflash contents. */

+FATFS DiskFATState;

+

+/** FAT Fs structure to hold a FAT file handle for the log data write destination. */

+FIL TempLogFile;

+

+/** Counter to count the number of 10 millisecond tick that has elapsed since the last sample */

+uint16_t CurrentLogTick;

+

+

+ISR(TIMER1_COMPA_vect, ISR_BLOCK)

+{

+	if (CurrentLogTick++ != LOG_INTERVAL_10MS)

+	  return;

+	  

+	CurrentLogTick = 0;

+

+	if (USB_DeviceState == DEVICE_STATE_Unattached)

+	{

+		f_printf(&TempLogFile, "%d Degrees\r\n", Temperature_GetTemperature());

+		f_sync(&TempLogFile);

+	}

+}

+

+

+/** Main program entry point. This routine contains the overall program flow, including initial

+ *  setup of all components and the main program loop.

+ */

+int main(void)

+{

+	SetupHardware();

+

+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);

+

+	/* Mount and open the log file on the dataflash FAT partition */

+	f_mount(0, &DiskFATState);

+	f_open(&TempLogFile, LOG_FILENAME, FA_OPEN_ALWAYS | FA_WRITE);

+	f_lseek(&TempLogFile, TempLogFile.fsize);

+

+	/* Write out the log seperator line */

+	f_printf(&TempLogFile, "===========================\r\n");

+	Temperature_GetTemperature(); // Discard first temperature reading to ensure accuracy

+

+	for (;;)

+	{

+		MS_Device_USBTask(&Disk_MS_Interface);

+		USB_USBTask();

+	}

+}

+

+/** Configures the board hardware and chip peripherals for the demo's functionality. */

+void SetupHardware(void)

+{

+	/* Disable watchdog if enabled by bootloader/fuses */

+	MCUSR &= ~(1 << WDRF);

+	wdt_disable();

+

+	/* Disable clock division */

+	clock_prescale_set(clock_div_1);

+

+	/* Hardware Initialization */

+	LEDs_Init();

+	SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_SCK_LEAD_FALLING | SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);

+	Dataflash_Init();

+	USB_Init();

+	ADC_Init(ADC_REFERENCE_AVCC | ADC_FREE_RUNNING | ADC_PRESCALE_128);

+	Temperature_Init();

+	

+	/* 10ms interval timer configuration */

+	OCR1A   = (((F_CPU / 1024) / 100) - 1);

+	TCCR1A  = (1 << WGM01);  // CTC mode

+	TCCR1B  = (1 << CS12) | (1 << CS10);   // Fcpu/1024 speed

+	TIMSK1  = (1 << OCIE1A);

+

+	/* Clear Dataflash sector protections, if enabled */

+	DataflashManager_ResetDataflashProtections();

+}

+

+/** Event handler for the library USB Connection event. */

+void EVENT_USB_Device_Connect(void)

+{

+	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);

+

+	/* Close the log file so that the host has exclusive filesystem access */

+	f_close(&TempLogFile);

+}

+

+/** Event handler for the library USB Disconnection event. */

+void EVENT_USB_Device_Disconnect(void)

+{

+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);

+	

+	/* When disconnected from the host, re-open log file so we can resume logging */

+	f_mount(0, &DiskFATState);

+	f_open(&TempLogFile, LOG_FILENAME, FA_OPEN_ALWAYS | FA_WRITE);

+	f_lseek(&TempLogFile, TempLogFile.fsize);

+}

+

+/** Event handler for the library USB Configuration Changed event. */

+void EVENT_USB_Device_ConfigurationChanged(void)

+{

+	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

+	if (!(MS_Device_ConfigureEndpoints(&Disk_MS_Interface)))

+	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+}

+

+/** Event handler for the library USB Unhandled Control Request event. */

+void EVENT_USB_Device_UnhandledControlRequest(void)

+{

+	MS_Device_ProcessControlRequest(&Disk_MS_Interface);

+}

+

+/** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed.

+ *

+ *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface configuration structure being referenced

+ */

+bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* MSInterfaceInfo)

+{

+	bool CommandSuccess;

+	

+	LEDs_SetAllLEDs(LEDMASK_USB_BUSY);

+	CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);

+	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+	

+	return CommandSuccess;

+}