diff options
Diffstat (limited to 'lib/lufa/Projects/SerialToLCD')
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/Config/LUFAConfig.h | 93 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/Descriptors.c | 257 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/Descriptors.h | 111 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/LUFA SerialToLCD.inf | 66 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/Lib/HD44780.c | 127 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/Lib/HD44780.h | 64 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/SerialToLCD.c | 170 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/SerialToLCD.h | 64 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/SerialToLCD.txt | 109 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/asf.xml | 51 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/doxyfile | 2395 | ||||
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/makefile | 43 |
12 files changed, 3550 insertions, 0 deletions
diff --git a/lib/lufa/Projects/SerialToLCD/Config/LUFAConfig.h b/lib/lufa/Projects/SerialToLCD/Config/LUFAConfig.h new file mode 100644 index 0000000000..6b113c8276 --- /dev/null +++ b/lib/lufa/Projects/SerialToLCD/Config/LUFAConfig.h @@ -0,0 +1,93 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2017. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2017 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 disclaims 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 + * \brief LUFA Library Configuration Header File + * + * This header file is used to configure LUFA's compile time options, + * as an alternative to the compile time constants supplied through + * a makefile. + * + * For information on what each token does, refer to the LUFA + * manual section "Summary of Compile Tokens". + */ + +#ifndef _LUFA_CONFIG_H_ +#define _LUFA_CONFIG_H_ + + #if (ARCH == ARCH_AVR8) + + /* Non-USB Related Configuration Tokens: */ +// #define DISABLE_TERMINAL_CODES + + /* USB Class Driver Related Tokens: */ +// #define HID_HOST_BOOT_PROTOCOL_ONLY +// #define HID_STATETABLE_STACK_DEPTH {Insert Value Here} +// #define HID_USAGE_STACK_DEPTH {Insert Value Here} +// #define HID_MAX_COLLECTIONS {Insert Value Here} +// #define HID_MAX_REPORTITEMS {Insert Value Here} +// #define HID_MAX_REPORT_IDS {Insert Value Here} +// #define NO_CLASS_DRIVER_AUTOFLUSH + + /* General USB Driver Related Tokens: */ + #define ORDERED_EP_CONFIG + #define USE_STATIC_OPTIONS (USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL) + #define USB_DEVICE_ONLY +// #define USB_HOST_ONLY +// #define USB_STREAM_TIMEOUT_MS {Insert Value Here} +// #define NO_LIMITED_CONTROLLER_CONNECT +// #define NO_SOF_EVENTS + + /* USB Device Mode Driver Related Tokens: */ +// #define USE_RAM_DESCRIPTORS + #define USE_FLASH_DESCRIPTORS +// #define USE_EEPROM_DESCRIPTORS +// #define NO_INTERNAL_SERIAL + #define FIXED_CONTROL_ENDPOINT_SIZE 8 + #define DEVICE_STATE_AS_GPIOR 0 + #define FIXED_NUM_CONFIGURATIONS 1 +// #define CONTROL_ONLY_DEVICE + #define INTERRUPT_CONTROL_ENDPOINT +// #define NO_DEVICE_REMOTE_WAKEUP +// #define NO_DEVICE_SELF_POWER + + /* USB Host Mode Driver Related Tokens: */ +// #define HOST_STATE_AS_GPIOR {Insert Value Here} +// #define USB_HOST_TIMEOUT_MS {Insert Value Here} +// #define HOST_DEVICE_SETTLE_DELAY_MS {Insert Value Here} +// #define NO_AUTO_VBUS_MANAGEMENT +// #define INVERTED_VBUS_ENABLE_LINE + + #else + + #error Unsupported architecture for this LUFA configuration file. + + #endif +#endif diff --git a/lib/lufa/Projects/SerialToLCD/Descriptors.c b/lib/lufa/Projects/SerialToLCD/Descriptors.c new file mode 100644 index 0000000000..374ee0a16b --- /dev/null +++ b/lib/lufa/Projects/SerialToLCD/Descriptors.c @@ -0,0 +1,257 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2017. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2012 Simon Foster (simon.foster [at] inbox [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 disclaims 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 + * + * USB Device Descriptors, for library use when in USB device mode. Descriptors are special + * computer-readable structures which the host requests upon device enumeration, to determine + * the device's capabilities and functions. + */ + +#include "Descriptors.h" + +/* On some devices, there is a factory set internal serial number which can be automatically sent to the host as + * the device's serial number when the Device Descriptor's .SerialNumStrIndex entry is set to USE_INTERNAL_SERIAL. + * This allows the host to track a device across insertions on different ports, allowing them to retain allocated + * resources like COM port numbers and drivers. On demos using this feature, give a warning on unsupported devices + * so that the user can supply their own serial number descriptor instead or remove the USE_INTERNAL_SERIAL value + * from the Device Descriptor (forcing the host to generate a serial number for each device from the VID, PID and + * port location). + */ +#if (USE_INTERNAL_SERIAL == NO_DESCRIPTOR) + #warning USE_INTERNAL_SERIAL is not available on this AVR - please manually construct a device serial descriptor. +#endif + +/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall + * device characteristics, including the supported USB version, control endpoint size and the + * number of device configurations. The descriptor is read out by the USB host when the enumeration + * process begins. + */ +const USB_Descriptor_Device_t PROGMEM DeviceDescriptor = +{ + .Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device}, + + .USBSpecification = VERSION_BCD(1,1,0), + .Class = CDC_CSCP_CDCClass, + .SubClass = CDC_CSCP_NoSpecificSubclass, + .Protocol = CDC_CSCP_NoSpecificProtocol, + + .Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE, + + .VendorID = 0x03EB, + .ProductID = 0x204B, + .ReleaseNumber = VERSION_BCD(0,0,1), + + .ManufacturerStrIndex = STRING_ID_Manufacturer, + .ProductStrIndex = STRING_ID_Product, + .SerialNumStrIndex = USE_INTERNAL_SERIAL, + + .NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS +}; + +/** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage + * of the device in one of its supported configurations, including information about any device interfaces + * and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting + * a configuration so that the host may correctly communicate with the USB device. + */ +const USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor = +{ + .Config = + { + .Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration}, + + .TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t), + .TotalInterfaces = 2, + + .ConfigurationNumber = 1, + .ConfigurationStrIndex = NO_DESCRIPTOR, + + .ConfigAttributes = (USB_CONFIG_ATTR_RESERVED | USB_CONFIG_ATTR_SELFPOWERED), + + .MaxPowerConsumption = USB_CONFIG_POWER_MA(100) + }, + + .CDC_CCI_Interface = + { + .Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface}, + + .InterfaceNumber = INTERFACE_ID_CDC_CCI, + .AlternateSetting = 0, + + .TotalEndpoints = 1, + + .Class = CDC_CSCP_CDCClass, + .SubClass = CDC_CSCP_ACMSubclass, + .Protocol = CDC_CSCP_ATCommandProtocol, + + .InterfaceStrIndex = NO_DESCRIPTOR + }, + + .CDC_Functional_Header = + { + .Header = {.Size = sizeof(USB_CDC_Descriptor_FunctionalHeader_t), .Type = DTYPE_CSInterface}, + .Subtype = CDC_DSUBTYPE_CSInterface_Header, + + .CDCSpecification = VERSION_BCD(1,1,0), + }, + + .CDC_Functional_ACM = + { + .Header = {.Size = sizeof(USB_CDC_Descriptor_FunctionalACM_t), .Type = DTYPE_CSInterface}, + .Subtype = CDC_DSUBTYPE_CSInterface_ACM, + + .Capabilities = 0x06, + }, + + .CDC_Functional_Union = + { + .Header = {.Size = sizeof(USB_CDC_Descriptor_FunctionalUnion_t), .Type = DTYPE_CSInterface}, + .Subtype = CDC_DSUBTYPE_CSInterface_Union, + + .MasterInterfaceNumber = INTERFACE_ID_CDC_CCI, + .SlaveInterfaceNumber = INTERFACE_ID_CDC_DCI, + }, + + .CDC_NotificationEndpoint = + { + .Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint}, + + .EndpointAddress = CDC_NOTIFICATION_EPADDR, + .Attributes = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA), + .EndpointSize = CDC_NOTIFICATION_EPSIZE, + .PollingIntervalMS = 0xFF + }, + + .CDC_DCI_Interface = + { + .Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface}, + + .InterfaceNumber = INTERFACE_ID_CDC_DCI, + .AlternateSetting = 0, + + .TotalEndpoints = 2, + + .Class = CDC_CSCP_CDCDataClass, + .SubClass = CDC_CSCP_NoDataSubclass, + .Protocol = CDC_CSCP_NoDataProtocol, + + .InterfaceStrIndex = NO_DESCRIPTOR + }, + + .CDC_DataOutEndpoint = + { + .Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint}, + + .EndpointAddress = CDC_RX_EPADDR, + .Attributes = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA), + .EndpointSize = CDC_TXRX_EPSIZE, + .PollingIntervalMS = 0x05 + }, + + .CDC_DataInEndpoint = + { + .Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint}, + + .EndpointAddress = CDC_TX_EPADDR, + .Attributes = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA), + .EndpointSize = CDC_TXRX_EPSIZE, + .PollingIntervalMS = 0x05 + } +}; + +/** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests + * the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate + * via the language ID table available at USB.org what languages the device supports for its string descriptors. + */ +const USB_Descriptor_String_t PROGMEM LanguageString = USB_STRING_DESCRIPTOR_ARRAY(LANGUAGE_ID_ENG); + +/** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable + * form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device + * Descriptor. + */ +const USB_Descriptor_String_t PROGMEM ManufacturerString = USB_STRING_DESCRIPTOR(L"Simon Foster"); + +/** Product descriptor string. This is a Unicode string containing the product's details in human readable form, + * and is read out upon request by the host when the appropriate string ID is requested, listed in the Device + * Descriptor. + */ +const USB_Descriptor_String_t PROGMEM ProductString = USB_STRING_DESCRIPTOR(L"USB-HD44780 Adapter"); + +/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors" + * documentation) by the application code so that the address and size of a requested descriptor can be given + * to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function + * is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the + * USB host. + */ +uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, + const uint16_t wIndex, + const void** const DescriptorAddress) +{ + const uint8_t DescriptorType = (wValue >> 8); + const uint8_t DescriptorNumber = (wValue & 0xFF); + + const void* Address = NULL; + uint16_t Size = NO_DESCRIPTOR; + + switch (DescriptorType) + { + case DTYPE_Device: + Address = &DeviceDescriptor; + Size = sizeof(USB_Descriptor_Device_t); + break; + case DTYPE_Configuration: + Address = &ConfigurationDescriptor; + Size = sizeof(USB_Descriptor_Configuration_t); + break; + case DTYPE_String: + switch (DescriptorNumber) + { + case STRING_ID_Language: + Address = &LanguageString; + Size = pgm_read_byte(&LanguageString.Header.Size); + break; + case STRING_ID_Manufacturer: + Address = &ManufacturerString; + Size = pgm_read_byte(&ManufacturerString.Header.Size); + break; + case STRING_ID_Product: + Address = &ProductString; + Size = pgm_read_byte(&ProductString.Header.Size); + break; + } + + break; + } + + *DescriptorAddress = Address; + return Size; +} + diff --git a/lib/lufa/Projects/SerialToLCD/Descriptors.h b/lib/lufa/Projects/SerialToLCD/Descriptors.h new file mode 100644 index 0000000000..360aa421ba --- /dev/null +++ b/lib/lufa/Projects/SerialToLCD/Descriptors.h @@ -0,0 +1,111 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2017. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2012 Simon Foster (simon.foster [at] inbox [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 disclaims 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 + * + * Header file for Descriptors.c. + */ + +#ifndef _DESCRIPTORS_H_ +#define _DESCRIPTORS_H_ + + /* Includes: */ + #include <avr/pgmspace.h> + + #include <LUFA/Drivers/USB/USB.h> + + /* Macros: */ + /** Endpoint address of the CDC device-to-host notification IN endpoint. */ + #define CDC_NOTIFICATION_EPADDR (ENDPOINT_DIR_IN | 2) + + /** Endpoint address of the CDC device-to-host data IN endpoint. */ + #define CDC_TX_EPADDR (ENDPOINT_DIR_IN | 3) + + /** Endpoint address of the CDC host-to-device data OUT endpoint. */ + #define CDC_RX_EPADDR (ENDPOINT_DIR_OUT | 4) + + /** Size in bytes of the CDC device-to-host notification IN endpoint. */ + #define CDC_NOTIFICATION_EPSIZE 8 + + /** Size in bytes of the CDC data IN and OUT endpoints. */ + #define CDC_TXRX_EPSIZE 16 + + /* Type Defines: */ + /** Type define for the device configuration descriptor structure. This must be defined in the + * application code, as the configuration descriptor contains several sub-descriptors which + * vary between devices, and which describe the device's usage to the host. + */ + typedef struct + { + USB_Descriptor_Configuration_Header_t Config; + + // CDC Command Interface + USB_Descriptor_Interface_t CDC_CCI_Interface; + USB_CDC_Descriptor_FunctionalHeader_t CDC_Functional_Header; + USB_CDC_Descriptor_FunctionalACM_t CDC_Functional_ACM; + USB_CDC_Descriptor_FunctionalUnion_t CDC_Functional_Union; + USB_Descriptor_Endpoint_t CDC_NotificationEndpoint; + + // CDC Data Interface + USB_Descriptor_Interface_t CDC_DCI_Interface; + USB_Descriptor_Endpoint_t CDC_DataOutEndpoint; + USB_Descriptor_Endpoint_t CDC_DataInEndpoint; + } USB_Descriptor_Configuration_t; + + /** Enum for the device interface descriptor IDs within the device. Each interface descriptor + * should have a unique ID index associated with it, which can be used to refer to the + * interface from other descriptors. + */ + enum InterfaceDescriptors_t + { + INTERFACE_ID_CDC_CCI = 0, /**< CDC CCI interface descriptor ID */ + INTERFACE_ID_CDC_DCI = 1, /**< CDC DCI interface descriptor ID */ + }; + + /** Enum for the device string descriptor IDs within the device. Each string descriptor should + * have a unique ID index associated with it, which can be used to refer to the string from + * other descriptors. + */ + enum StringDescriptors_t + { + STRING_ID_Language = 0, /**< Supported Languages string descriptor ID (must be zero) */ + STRING_ID_Manufacturer = 1, /**< Manufacturer string ID */ + STRING_ID_Product = 2, /**< Product string ID */ + }; + + /* Function Prototypes: */ + uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, + const uint16_t wIndex, + const void** const DescriptorAddress) + ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3); + +#endif + diff --git a/lib/lufa/Projects/SerialToLCD/LUFA SerialToLCD.inf b/lib/lufa/Projects/SerialToLCD/LUFA SerialToLCD.inf new file mode 100644 index 0000000000..4799bd1a7e --- /dev/null +++ b/lib/lufa/Projects/SerialToLCD/LUFA SerialToLCD.inf @@ -0,0 +1,66 @@ +;************************************************************ +; Windows USB CDC ACM Setup File +; Copyright (c) 2000 Microsoft Corporation +;************************************************************ + +[DefaultInstall] +CopyINF="LUFA VirtualSerial.inf" + +[Version] +Signature="$Windows NT$" +Class=Ports +ClassGuid={4D36E978-E325-11CE-BFC1-08002BE10318} +Provider=%MFGNAME% +DriverVer=7/1/2012,10.0.0.0 + +[Manufacturer] +%MFGNAME%=DeviceList, NTx86, NTamd64, NTia64 + +[SourceDisksNames] + +[SourceDisksFiles] + +[DestinationDirs] +DefaultDestDir=12 + +[DriverInstall] +Include=mdmcpq.inf +CopyFiles=FakeModemCopyFileSection +AddReg=DriverInstall.AddReg + +[DriverInstall.Services] +Include=mdmcpq.inf +AddService=usbser, 0x00000002, LowerFilter_Service_Inst + +[DriverInstall.AddReg] +HKR,,EnumPropPages32,,"msports.dll,SerialPortPropPageProvider" + +;------------------------------------------------------------------------------ +; Vendor and Product ID Definitions +;------------------------------------------------------------------------------ +; When developing your USB device, the VID and PID used in the PC side +; application program and the firmware on the microcontroller must match. +; Modify the below line to use your VID and PID. Use the format as shown below. +; Note: One INF file can be used for multiple devices with different VID and PIDs. +; For each supported device, append ",USB\VID_xxxx&PID_yyyy" to the end of the line. +;------------------------------------------------------------------------------ +[DeviceList] +%DESCRIPTION%=DriverInstall, USB\VID_03EB&PID_204B + +[DeviceList.NTx86] +%DESCRIPTION%=DriverInstall, USB\VID_03EB&PID_204B + +[DeviceList.NTamd64] +%DESCRIPTION%=DriverInstall, USB\VID_03EB&PID_204B + +[DeviceList.NTia64] +%DESCRIPTION%=DriverInstall, USB\VID_03EB&PID_204B + +;------------------------------------------------------------------------------ +; String Definitions +;------------------------------------------------------------------------------ +;Modify these strings to customize your device +;------------------------------------------------------------------------------ +[Strings] +MFGNAME="http://www.lufa-lib.org" +DESCRIPTION="LUFA CDC-ACM Virtual Serial Port"
\ No newline at end of file diff --git a/lib/lufa/Projects/SerialToLCD/Lib/HD44780.c b/lib/lufa/Projects/SerialToLCD/Lib/HD44780.c new file mode 100644 index 0000000000..61a9b7ec6d --- /dev/null +++ b/lib/lufa/Projects/SerialToLCD/Lib/HD44780.c @@ -0,0 +1,127 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2017. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2012 Simon Foster (simon.foster [at] inbox [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 disclaims 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. +*/ + +#include "HD44780.h" + +static void HD44780_WriteNibble(const uint8_t nib) +{ + /* Read PORTD and clear the ENABLE and PD0..3 bits + then OR in the data */ + + PORTD = (PORTD & ~(ENABLE | LO4_MASK)) | (nib & LO4_MASK); + + /* Enforce address setup time (tAS) 60ns + 60 @ 16MHz = <1 + Let's us a few NOPs for good measure */ + asm volatile("nop\n\t" + "nop\n\t" + :: ); + + /* Take enable high and enforce Enable High time (tEH=450ns) + 450ns @ 16MHz = 7.2 => 7 NOPs */ + + PORTD |= ENABLE; + + asm volatile("nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + :: ); + + /* Take enable low and enforce Enable Low time (tEL=500ns) + 500ns @ 16MHz = 8.0 => 7 NOPs */ + PORTD &= ~ENABLE; + + asm volatile("nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + :: ); +} + +static void HD44780_WriteByte(const uint8_t c) +{ + HD44780_WriteNibble(HI4(c)); + HD44780_WriteNibble(LO4(c)); +} + +static void HD44780_PowerUp4Bit(void) +{ + /* Wait for more than 40 ms after VCC rises to 2.7 V */ + _delay_ms(40); + HD44780_WriteNibble(0x03); // FN_SET 8-bit + + /* Wait for more than 4.1 ms */ + _delay_ms(5); + HD44780_WriteNibble(0x03); // FN_SET 8-bit + + /* Wait for more than 100 µs */ + _delay_us(100); + HD44780_WriteNibble(0x03); // FN_SET 8-bit + + /* From now on we must allow 40us for each command */ + _delay_us(50); + HD44780_WriteNibble(0x02); // FN_SET 4-bit + + /* The LCD is now in 4-bit mode so we can continue + using the 4-bit API */ + _delay_us(50); +} + +void HD44780_Initialize(void) +{ + PORTD &= ~ALL_BITS; + DDRD |= ALL_BITS; + HD44780_PowerUp4Bit(); +} + +void HD44780_WriteCommand(const uint8_t c) +{ + PORTD &= ~RS; + HD44780_WriteByte(c); + _delay_us(50); +} + +void HD44780_WriteData(const uint8_t c) +{ + PORTD |= RS; + HD44780_WriteByte(c); + PORTD &= ~RS; + _delay_us(50); +} diff --git a/lib/lufa/Projects/SerialToLCD/Lib/HD44780.h b/lib/lufa/Projects/SerialToLCD/Lib/HD44780.h new file mode 100644 index 0000000000..0128037851 --- /dev/null +++ b/lib/lufa/Projects/SerialToLCD/Lib/HD44780.h @@ -0,0 +1,64 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2017. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2012 Simon Foster (simon.foster [at] inbox [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 disclaims 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 + * + * Header file for HD44780.c. + */ + +#ifndef _HD44780_H_ +#define _HD44780_H_ + + /* Includes: */ + #include <avr/io.h> + #include <util/delay.h> + #include <avr/power.h> + + /* Macros: */ + #define RS (1 << 4) /* PD4 */ + #define ENABLE (1 << 7) /* PD7 */ + + #define HI4_MASK 0xF0 + #define LO4_MASK 0x0F /* PD0-PD3 */ + + #define ALL_BITS (RS | ENABLE | LO4_MASK) + + #define HI4(c) ((c & HI4_MASK) >> 4) + #define LO4(c) ((c & LO4_MASK) >> 0) + + #define CMD_DISPLAY_ON 0x0C + + /* Function Prototypes: */ + void HD44780_Initialize(void); + void HD44780_WriteData(const uint8_t c); + void HD44780_WriteCommand(const uint8_t c); + +#endif diff --git a/lib/lufa/Projects/SerialToLCD/SerialToLCD.c b/lib/lufa/Projects/SerialToLCD/SerialToLCD.c new file mode 100644 index 0000000000..85abbdb50d --- /dev/null +++ b/lib/lufa/Projects/SerialToLCD/SerialToLCD.c @@ -0,0 +1,170 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2017. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2012 Simon Foster (simon.foster [at] inbox [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 disclaims 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 SerialToLCD program. This file contains the main tasks of + * the project and is responsible for the initial application hardware configuration. + */ + +#include "SerialToLCD.h" + +/** Circular buffer to hold data from the host before it is sent to the LCD */ +static RingBuffer_t FromHost_Buffer; + +/** Underlying data buffer for \ref FromHost_Buffer, where the stored bytes are located. */ +static uint8_t FromHost_Buffer_Data[128]; + +/** LUFA CDC Class driver interface configuration and state information. This structure is + * passed to all CDC Class driver functions, so that multiple instances of the same class + * within a device can be differentiated from one another. + */ +USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface = + { + .Config = + { + .ControlInterfaceNumber = INTERFACE_ID_CDC_CCI, + .DataINEndpoint = + { + .Address = CDC_TX_EPADDR, + .Size = CDC_TXRX_EPSIZE, + .Banks = 1, + }, + .DataOUTEndpoint = + { + .Address = CDC_RX_EPADDR, + .Size = CDC_TXRX_EPSIZE, + .Banks = 1, + }, + .NotificationEndpoint = + { + .Address = CDC_NOTIFICATION_EPADDR, + .Size = CDC_NOTIFICATION_EPSIZE, + .Banks = 1, + }, + }, + }; + + +/** 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(); + + RingBuffer_InitBuffer(&FromHost_Buffer, FromHost_Buffer_Data, sizeof(FromHost_Buffer_Data)); + + GlobalInterruptEnable(); + + for (;;) + { + /* Only try to read in bytes from the CDC interface if the transmit buffer is not full */ + if (!(RingBuffer_IsFull(&FromHost_Buffer))) + { + int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface); + + /* Read bytes from the USB OUT endpoint into the USART transmit buffer */ + if (!(ReceivedByte < 0)) + RingBuffer_Insert(&FromHost_Buffer, ReceivedByte); + } + + while (RingBuffer_GetCount(&FromHost_Buffer) > 0) + { + static uint8_t EscapePending = 0; + int16_t HD44780Byte = RingBuffer_Remove(&FromHost_Buffer); + + if (HD44780Byte == COMMAND_ESCAPE) + { + if (EscapePending) + { + HD44780_WriteData(HD44780Byte); + EscapePending = 0; + } + else + { + /* Next received character is the command byte */ + EscapePending = 1; + } + } + else + { + if (EscapePending) + { + HD44780_WriteCommand(HD44780Byte); + EscapePending = 0; + } + else + { + HD44780_WriteData(HD44780Byte); + } + } + } + + CDC_Device_USBTask(&VirtualSerial_CDC_Interface); + USB_USBTask(); + } +} + +/** Configures the board hardware and chip peripherals for the application's functionality. */ +void SetupHardware(void) +{ +#if (ARCH == ARCH_AVR8) + /* Disable watchdog if enabled by bootloader/fuses */ + MCUSR &= ~(1 << WDRF); + wdt_disable(); + + /* Disable clock division */ + clock_prescale_set(clock_div_1); +#endif + + /* Hardware Initialization */ + USB_Init(); + + /* Power up the HD44780 Interface */ + HD44780_Initialize(); + HD44780_WriteCommand(CMD_DISPLAY_ON); + + /* Start the flush timer so that overflows occur rapidly to push received bytes to the USB interface */ + TCCR0B = (1 << CS02); +} + +/** Event handler for the library USB Configuration Changed event. */ +void EVENT_USB_Device_ConfigurationChanged(void) +{ + CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface); +} + +/** Event handler for the library USB Control Request reception event. */ +void EVENT_USB_Device_ControlRequest(void) +{ + CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface); +} diff --git a/lib/lufa/Projects/SerialToLCD/SerialToLCD.h b/lib/lufa/Projects/SerialToLCD/SerialTo |