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Diffstat (limited to 'Projects/TemperatureDataLogger/TempDataLogger.c')
| -rw-r--r-- | Projects/TemperatureDataLogger/TempDataLogger.c | 187 |
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 --- /dev/null +++ b/Projects/TemperatureDataLogger/TempDataLogger.c @@ -0,0 +1,187 @@ +/*
+ 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;
+}
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