einfache Bibliothek für AVR90USB1287 und CDC (UART) gesucht

Hallo,

ich bin auf der Suche nach einer fertigen Bibliothek, um einen AT90USB1287 um eine serielle Schnittstelle via USB zu erweitern. Hardwaremäßig ist alles verdrahtet und meine selbsterstellte Bibliothek nach einem Beispiel von Atmel funktioniert auch eher weniger wie mehr. Zumindest wird manchmal der Atmel vom PC erkannt und ich habe auch schon via Hyperterminal Zeichen hin und her geschickt.
Die meisste Zeit aber stürzt mein Atmel einfach ab und führt ständig selbstständig Resets durch, sobald USB verbunden ist. Ich vermute es liegt daran, dass ich den USB-Code nur zu 10% verstehe und somit noch unzählige Fehler in der Software sind. Ich habe alles was zu den USB-Funktionen gehört in einer Datei zusammengefasst und es sind 32kB Quellcode. Ich weiß gar nicht wo ich anfangen soll zu suchen.

Mein Problem ist, dass der USB-Code zu umfangreich ist und ich nicht durchblicke, ohne vorher eine Doktorarbeit über das Thema USB allgemein anzufertigen. So etwas muss es doch für Anfänger schon fertig geben habe ich mir gedacht. Einfach eine Datei, die man einbindet mit den Funktionen init, send und receive für die serielle Schnittstelle. Aber irgendwie ist sowas im Netz nicht zu finden. Alles was ich finde ist mit stunden/tage langen einlesen und einarbeiten verbunden.

Hat vielleicht jemand einen Tipp für mich?

Viele Grüße
Andreas

Generell hatte ich auch schon mit einem Xmega die Erfahrung, dass die USB implementierung von Atmel etwas buggy ist (gefühlt, weil sehr umständlich zu bedienen). Ich habe es damals so genommen, dass ich die fertige USB Implementierung aus dem Atmel Software Framework (ASF) genommen habe.
Du könntest entweder die Implementierung im ASF nehmen, sofern das für den AVR90USB vorhanden ist, oder dir zumindest die Code der Implementierung anschauen.

Hallo,

vielen Dank für den Hinweis auf das ASF. Da gab es tatächlich was für meinen Controller, das hat aber irgendwie noch komplizierter ausgeschaut. Ich habe jetzt einfach das aktuelle CDC-Demo von der Homepage heruntergeladen und alles in eine Bibliothek zusammengefasst. Dabei habe ich alles rausgeworfen, was nicht für den UART benötigt wird. Herausgekommen ist folgende Bibliothek, die zumindest jetzt mal einigermassen funktioniert:

Code:

/** Bibliothek für RS232-Kommuniktion mit dem AT90USB1287 Folgende Funktionen müssen/können aufgerufen werden: USB_initTask (); einmalig beim start aufrufen USB_task (); regelmäßig im Hauptprogramm aufrufen bool USB_testUARTreceived (void); char USB_getUARTchar (void); bool USB_sendReadyUART (void); void USB_sendUARTchar (char senData); void USB_sendUARTbuffer (U8 *buffer, U8 nb_data); nützliches zur Abfrage: bool USB_connected; Flag, ob USB eingesteckt ist bool USB_isDeviceEnumerated Flag, ob USB am PC angemeldet ist Folgende Sachen können noch konfiguriert werden: **/ #define USB_deviceBusPowered 0x00 #define USB_deviceSelfPowered 0x01 #define USB_deviceRemoteWakeUp 0x02 #define USB_deviceBatteryPowered 0x04 #define USB_devicePower USB_deviceBusPowered #define USB_maxPower 250 // 500 mA (50 = 100mA) //------------------------------------------------------------------------------------------------------------------------------ #include <compiler.h> #include <avr/io.h> #include <avr/power.h> #define USB_vidATMEL 0x03EB #define USB_pidMegaCDC 0x2018 #define USB_endpointBulk 0x02 #define USB_endpointInterrupt 0x03 #define USB_endpointIn 0x80 #define USB_CDCglobClass 0x02 #define USB_CDCcommClass 0x02 #define USB_CDCdataClass 0x0A #define USB_CDCcommSubClass 0x02 #define USB_CDCdataSubClass 0x00 #define USB_CDCcommProtocol 0x01 #define USB_CDCdataProtocol 0x00 #define USB_specification 0x0200 #define USB_deviceSubClass 0 // each configuration has its own sub-class #define USB_deviceProtocol 0 // each configuration has its own protocol #define USB_EPcontrolLength 64 #define USB_releaseNumber 0x1000 #define USB_manIndex 0x00 #define USB_prodIndex 0x00 #define USB_SNindex 0x00 // No serial number field #define USB_NBconfiguration 1 #define USB_endpointTX 0x01 #define USB_endpointRX 0x02 #define USB_endpointInterface 0x03 #define USB_interfaceCount 2 // Number of interfaces #define USB_confNB 1 #define USB_confINDEX 0 #define USB_confAttributesReserved 0x80 #define USB_confBusPowered (USB_confAttributesReserved) #define USB_interface0number 0 #define USB_interface0alternate 0 #define USB_interface0endpoint 1 #define USB_interface0class USB_CDCcommClass // CDC ACM Com #define USB_interface0subClass USB_CDCcommSubClass #define USB_interface0protocol USB_CDCcommProtocol #define USB_interface0index 0 #define USB_interface1number 1 #define USB_interface1alternate 0 #define USB_interface1endpoint 2 #define USB_interface1class USB_CDCdataClass // CDC ACM Data #define USB_interface1subClass USB_CDCdataSubClass #define USB_interface1protocol USB_CDCdataProtocol #define USB_interface1index 0 #define USB_interfaceEPsize 0x20 #define USB_endpoint3number USB_endpointIn | USB_endpointInterface #define USB_endpoint3attributes USB_endpointInterrupt #define USB_endpoint3size USB_interfaceEPsize #define USB_endpoint3interval 0xFF //ms interrupt pooling from host #define USB_interfaceTXEPsize 0x40 #define USB_endpoint1number USB_endpointIn | USB_endpointTX #define USB_endpoint1attributes USB_endpointBulk #define USB_endpoint1size USB_interfaceTXEPsize #define USB_endpoint1interval 0x00 #define USB_interfaceRXEPsize 0x40 #define USB_endpoint2number USB_endpointTX #define USB_endpoint2attributes USB_endpointBulk #define USB_endpoint2size USB_interfaceRXEPsize #define USB_endpoint2interval 0x00 #define USB_descriptorLangID 0x00 #define USB_languageID 0x0409 #define USB_endpointCount 7 #define USB_endpointControl 0 #define USB_setupRecipientDevice (0) #define USB_setupRecipientInterface (1) #define USB_setupRecipientEndpoint (2) #define USB_descriptorDevice 0x01 #define USB_descriptorConfiguration 0x02 #define USB_descriptorString 0x03 #define USB_descriptorInterface 0x04 #define USB_descriptorEndpoint 0x05 #define USB_writeWordEnumStruc(x) (x) typedef struct { U8 bLength; // Size of this descriptor in bytes U8 bDescriptorType; // DEVICE descriptor type U16 bscUSB; // Binay Coded Decimal Spec. release U8 bDeviceClass; // Class code assigned by the USB U8 bDeviceSubClass; // Sub-class code assigned by the USB U8 bDeviceProtocol; // Protocol code assigned by the USB U8 bMaxPacketSize0; // Max packet size for EP0 U16 idVendor; // Vendor ID. ATMEL = 0x03EB U16 idProduct; // Product ID assigned by the manufacturer U16 bcdDevice; // Device release number U8 iManufacturer; // Index of manu. string descriptor U8 iProduct; // Index of prod. string descriptor U8 iSerialNumber; // Index of S.N. string descriptor U8 bNumConfigurations; // Number of possible configurations } USB_structDeviceDescriptor; typedef struct { U8 bLength; // size of this descriptor in bytes U8 bDescriptorType; // CONFIGURATION descriptor type U16 wTotalLength; // total length of data returned U8 bNumInterfaces; // number of interfaces for this conf. U8 bConfigurationValue; // value for SetConfiguration resquest U8 iConfiguration; // index of string descriptor U8 bmAttibutes; // Configuration characteristics U8 MaxPower; // maximum power consumption } USB_structConfigurationDescriptor; typedef struct { U8 bLength; // size of this descriptor in bytes U8 bDescriptorType; // INTERFACE descriptor type U8 bInterfaceNumber; // Number of interface U8 bAlternateSetting; // value to select alternate setting U8 bNumEndpoints; // Number of EP except EP 0 U8 bInterfaceClass; // Class code assigned by the USB U8 bInterfaceSubClass; // Sub-class code assigned by the USB U8 bInterfaceProtocol; // Protocol code assigned by the USB U8 iInterface; // Index of string descriptor } USB_structInterfaceDescriptor; typedef struct { U8 bLength; // Size of this descriptor in bytes U8 bDescriptorType; // ENDPOINT descriptor type U8 bEndpointAddress; // Address of the endpoint U8 bmAttributes; // Endpoint's attributes U16 wMaxPacketSize; // Maximum packet size for this EP U8 bInterval; // Interval for polling EP in ms } USB_structEndpointDescritptor; typedef struct { U8 bLength; // size of this descriptor in bytes U8 bDescriptorType; // STRING descriptor type U16 wlangid; // language id } USB_structLanguageID; typedef struct { USB_structConfigurationDescriptor cfg; USB_structInterfaceDescriptor ifc0; U8 CS_INTERFACE[19]; USB_structEndpointDescritptor ep3; USB_structInterfaceDescriptor ifc1; USB_structEndpointDescritptor ep1; USB_structEndpointDescritptor ep2; } USB_structUserConfigurationDescriptor; typedef struct { U32 dwDTERate; U8 bCharFormat; U8 bParityType; U8 bDataBits; } USB_structLineCoding; typedef union { U8 all; struct { U8 DTR: 1; U8 RTS: 1; U8 unused: 6; }; } USB_structLineStatus; code USB_structDeviceDescriptor USB_deviceDescriptor = { sizeof (USB_deviceDescriptor), USB_descriptorDevice, USB_writeWordEnumStruc (USB_specification), USB_CDCglobClass, USB_deviceSubClass, USB_deviceProtocol, USB_EPcontrolLength, USB_writeWordEnumStruc (USB_vidATMEL), USB_writeWordEnumStruc (USB_pidMegaCDC), USB_writeWordEnumStruc (USB_releaseNumber), USB_manIndex, USB_prodIndex, USB_SNindex, USB_NBconfiguration}; code USB_structUserConfigurationDescriptor USB_configurationDescriptor = { { sizeof (USB_structConfigurationDescriptor), USB_descriptorConfiguration, 0x0043, USB_interfaceCount, USB_confNB, USB_confINDEX, USB_confBusPowered, USB_maxPower}, { sizeof (USB_structInterfaceDescriptor), USB_descriptorInterface, USB_interface0number, USB_interface0alternate, USB_interface0endpoint, USB_interface0class, USB_interface0subClass, USB_interface0protocol, USB_interface0index}, { 0x05, 0x24, 0x00, 0x10, 0x01, 0x05, 0x24, 0x01, 0x03, 0x01, 0x04, 0x24, 0x02, 0x06,0x05, 0x24, 0x06, 0x00, 0x01}, { sizeof (USB_structEndpointDescritptor), USB_descriptorEndpoint, USB_endpoint3number, USB_endpoint3attributes, USB_writeWordEnumStruc (USB_endpoint3size), USB_endpoint3interval}, { sizeof (USB_structInterfaceDescriptor), USB_descriptorInterface, USB_interface1number, USB_interface1alternate, USB_interface1endpoint, USB_interface1class, USB_interface1subClass, USB_interface1protocol, USB_interface1index}, { sizeof (USB_structEndpointDescritptor), USB_descriptorEndpoint, USB_endpoint1number, USB_endpoint1attributes, USB_writeWordEnumStruc (USB_endpoint1size), USB_endpoint1interval}, { sizeof (USB_structEndpointDescritptor), USB_descriptorEndpoint, USB_endpoint2number, USB_endpoint2attributes, USB_writeWordEnumStruc (USB_endpoint2size), USB_endpoint2interval} }; code USB_structLanguageID USB_userLanguageID = { sizeof (USB_userLanguageID), USB_descriptorString, USB_writeWordEnumStruc (USB_languageID)}; PGM_VOID_P USB_pbuffer; USB_structLineCoding USB_lineCoding; USB_structLineStatus USB_lineStatus; volatile U8 USB_requestBreak = FALSE; U8 USB_endpointStatus[USB_endpointCount]; U8 USB_dataToTransfer; volatile U8 USB_configurationNumber; volatile U8 USB_remoteWakeUpFeature = DISABLE; static U8 USB_deviceStatus = USB_devicePower; bool USB_connected = FALSE; volatile U16 USB_gEvent = 0; U8 USB_RXcounter = 0; void USB_initTask (void); void USB_task (void); U8 USB_configEndpoint (U8 config0, U8 config1); U8 USB_initDevice (void); void USB_processRequest (void); static bool USB_getDescriptor (void); static void USB_setAddress (void); static bool USB_setConfiguration (void); static void USB_getConfiguration (void); static bool USB_getStatus (U8 bmRequestType); static bool USB_setFeature (U8 bmRequestType); static bool USB_clearFeature (U8 bmRequestType); static bool USB_getInterface (void); static bool USB_setInterface (void); bool USB_readUserRequest (U8 type, U8 request); void USB_initUserEndpoint (U8 conf_nb); U8 USB_getUserInterface (U16 wInterface); void USB_resetUserInterface (U16 wInterface, U8 alternate_setting); bool USB_getUserDescriptor (U8 type, U8 string); void USB_CDCgetLineCoding (void); void USB_CDCsetLineCoding (void); void USB_CDCsetControlLineState (U16 state); void USB_CDCsendBreak (U16 break_duration); void USB_initDeviceTask (void); void USB_startDevice (void); void USB_deviceTask (void); void USB_initUART (void); bool USB_testUARTreceived (void); char USB_getUARTchar (void); bool USB_sendReadyUART (void); void USB_sendUARTchar (char sendData); void USB_sendUARTbuffer (U8 *buffer, U8 nb_data); #define USB_sendEvent(x) (USB_gEvent |= (1<<x)) #define USB_ackEvent(x) (USB_gEvent &= ~(1<<x)) #define USB_isEvent(x) ((USB_gEvent & (1<<x)) ? TRUE : FALSE) #define USB_eventPowered 1 // USB plugged #define USB_eventUnPowered 2 // USB un-plugged #define USB_eventSuspend 5 // USB suspend #define USB_eventWakeUp 6 // USB wake up #define USB_eventResume 7 // USB resume #define USB_eventReset 8 // USB reset #define USB_maskEndpointDir 0x7F #define USB_maskUADD 0x7F #define USB_typeControl 0 #define USB_typeIsochronous 1 #define USB_typeBulk 2 #define USB_typeInterrupt 3 #define USB_directionOut 0 #define USB_directionIn 1 #define USB_size8 0 #define USB_size16 1 #define USB_size32 2 #define USB_size64 3 #define USB_size128 4 #define USB_size256 5 #define USB_size512 6 #define USB_size1024 7 #define USB_bankCount1 0 #define USB_bankCount2 1 #define USB_NYETenabled 0 #define USB_NYETdisabled 1 #define USB_selectEndpoint(ep) (UENUM = (U8)ep) #define USB_resetEndpoint(ep) (UERST = 1 << (U8)ep, UERST = 0) #define USB_enableEndpoint (UECONX |= (1<<EPEN)) #define USB_enableStallHandshake (UECONX |= (1<<STALLRQ)) #define USB_resetDataToggle (UECONX |= (1<<RSTDT)) #define USB_disableStallHandshake (UECONX |= (1<<STALLRQC)) #define USB_isEndpointEnabled ((UECONX & (1<<EPEN)) ? TRUE : FALSE) #define USB_allocateMemory (UECFG1X |= (1<<ALLOC)) #define USB_buildEndpoint0config(type, dir, nyet) ((type<<6) | (nyet<<1) | (dir)) #define USB_buildEndpoint1config(size, bank) ((size<<4) | (bank<<2)) #define USB_buildEndpointConfiguration(num, type, dir, size, bank, nyet) (USB_selectEndpoint(num), USB_configEndpoint(USB_buildEndpoint0config(type, dir, nyet), USB_buildEndpoint1config(size, bank))) #define USB_enableRegulator (UHWCON |= (1<<UVREGE)) #define USB_disableUIDpin (UHWCON &= ~(1<<UIDE)) #define USB_forceDeviceMode (USB_disableUIDpin, UHWCON |= (1<<UIMOD)) #define USB_enable (USBCON |= ((1<<USBE) | (1<<OTGPADE))) #define USB_disable (USBCON &= ~((1<<USBE) | (1<<OTGPADE))) #define USB_selectDevice (USBCON &= ~(1<<HOST)) #define USB_freezeClock (USBCON |= (1<<FRZCLK)) #define USB_unfreezeClock (USBCON &= ~(1<<FRZCLK)) #define USB_isIDdevice ((USBSTA & (1<<ID)) ? TRUE : FALSE) #define USB_isVBUShigh ((USBSTA & (1<<VBUS)) ? TRUE : FALSE) #define USB_isVBUSlow ((USBSTA & (1<<VBUS)) ? FALSE : TRUE) #define USB_detach (UDCON |= (1<<DETACH)) #define USB_attach (UDCON &= ~(1<<DETACH)) #define USB_disableResumeInterrupt (UDIEN &= ~(1<<EORSME)) #define USB_isResumeInterruptEnabled ((UDIEN & (1<<EORSME)) ? TRUE : FALSE) #define USB_ackResume (UDINT = ~(1<<EORSMI)) #define USB_isResume ((UDINT & (1<<EORSMI)) ? TRUE : FALSE) #define USB_enableWakeUpInterrupt (UDIEN |= (1<<WAKEUPE)) #define USB_disableWakeUpInterrupt (UDIEN &= ~(1<<WAKEUPE)) #define USB_isWakeUpInterruptEnabled ((UDIEN & (1<<WAKEUPE)) ? TRUE : FALSE) #define USB_ackWakeUp (UDINT = ~(1<<WAKEUPI)) #define USB_isWakeUp ((UDINT & (1<<WAKEUPI)) ? TRUE : FALSE) #define USB_enableResetInterrupt (UDIEN |= (1<<EORSTE)) #define USB_isResetInterruptEnabled ((UDIEN & (1<<EORSTE)) ? TRUE : FALSE) #define USB_ackReset (UDINT = ~(1<<EORSTI)) #define USB_isReset ((UDINT & (1<<EORSTI)) ? TRUE : FALSE) #define USB_isSOFinterruptEnabled ((UDIEN & (1<<SOFE)) ? TRUE : FALSE) #define USB_ackSOF (UDINT = ~(1<<SOFI)) #define USB_isSOF ((UDINT & (1<<SOFI)) ? TRUE : FALSE) #define USB_enableSuspendInterrupt (UDIEN |= (1<<SUSPE)) #define USB_disableSuspendInterrupt (UDIEN &= ~(1<<SUSPE)) #define USB_isSuspendInterruptEnabled ((UDIEN & (1<<SUSPE)) ? TRUE : FALSE) #define USB_ackSuspend (UDINT = ~(1<<SUSPI)) #define USB_isSuspend ((UDINT & (1<<SUSPI)) ? TRUE : FALSE) #define USB_enableAddress (UDADDR |= (1<<ADDEN)) #define USB_configAddress(addr) (UDADDR = (UDADDR & (1<<ADDEN)) | ((U8)addr & USB_maskUADD)) #define USB_isEndpointConfigured ((UESTA0X & (1<<CFGOK)) ? TRUE : FALSE) #define USB_ackFiFoCon (UEINTX &= ~(1<<FIFOCON)) #define USB_ackNakOut (UEINTX &= ~(1<<NAKOUTI)) #define USB_ackReceiveSetup (UEINTX &= ~(1<<RXSTPI)) #define USB_ackReceiveOut (UEINTX &= ~(1<<RXOUTI), USB_ackFiFoCon) #define USB_ackInReady (UEINTX &= ~(1<<TXINI), USB_ackFiFoCon) #define USB_isWriteEnabled (UEINTX&(1<<RWAL)) #define USB_isReadControlEnabled (UEINTX&(1<<TXINI)) #define USB_isNakOutSent (UEINTX&(1<<NAKOUTI)) #define USB_isReceiveSetup (UEINTX&(1<<RXSTPI)) #define USB_isReceiveOut (UEINTX&(1<<RXOUTI)) #define USB_isInReady (UEINTX&(1<<TXINI)) #define USB_sendControlIn (UEINTX &= ~(1<<TXINI)) #define USB_ackControlOut (UEINTX &= ~(1<<RXOUTI)) #define USB_readByte (UEDATX) #define USB_writeByte(byte) (UEDATX = (U8)byte) #define USB_writePGMbyte(byte) (USB_writeByte (pgm_read_byte_near ((unsigned int)byte))) #define USB_byteCounter ((((U16)UEBCHX) << 8) | (UEBCLX)) #define USB_getDeviceDescriptorPointer (&(USB_deviceDescriptor.bLength)) #define USB_getDeviceDescriptorLength (sizeof (USB_deviceDescriptor)) #define USB_getConfigDesciptorPointer (&(USB_configurationDescriptor.cfg.bLength)) #define USB_getConfigDesciptorLength (sizeof (USB_configurationDescriptor)) #define USB_setupDirHostToDevice (0<<7) #define USB_setupDirDeviceToHost (1<<7) #define USB_setupTypeStandard (0<<5) #define USB_setupTypeClass (1<<5) #define USB_setupSetStandardDevice (USB_setupDirHostToDevice | USB_setupTypeStandard | USB_setupRecipientDevice) // 0x00 #define USB_setupGetStandardDevice (USB_setupDirDeviceToHost | USB_setupTypeStandard | USB_setupRecipientDevice) // 0x80 #define USB_setupSetStandardInterface (USB_setupDirHostToDevice | USB_setupTypeStandard | USB_setupRecipientInterface) // 0x01 #define USB_setupGetStandardInterface (USB_setupDirDeviceToHost | USB_setupTypeStandard | USB_setupRecipientInterface) // 0x81 #define USB_setupSetStandardEndpoint (USB_setupDirHostToDevice | USB_setupTypeStandard | USB_setupRecipientEndpoint) // 0x02 #define USB_setupGetStandardEndpoint (USB_setupDirDeviceToHost | USB_setupTypeStandard | USB_setupRecipientEndpoint) // 0x82 #define USB_setupSetClassInterface (USB_setupDirHostToDevice | USB_setupTypeClass | USB_setupRecipientInterface) // 0x21 #define USB_setupGetClassInterface (USB_setupDirDeviceToHost | USB_setupTypeClass | USB_setupRecipientInterface) // 0xA1 #define USB_setupGetStatus 0x00 #define USB_setupGetDevice 0x01 #define USB_setupClearFeature 0x01 #define USB_setupGetString 0x03 #define USB_setupSetFeature 0x03 #define USB_setupSetAddress 0x05 #define USB_setupGetDescriptor 0x06 #define USB_setupSetDescriptor 0x07 #define USB_setupGetConfiguration 0x08 #define USB_setupSetConfiguration 0x09 #define USB_setupGetInterface 0x0A #define USB_setupSetInterface 0x0B #define USB_setupSynchFrame 0x0C #define USB_featureDeviceRemoteWakeUp 0x01 #define USB_featureEndpointHalt 0x00 #define USB_CDCsetupSetLineCoding 0x20 #define USB_CDCsetupGetLineCoding 0x21 #define USB_CDCsetupSetControlLineState 0x22 #define USB_CDCsetupSendBreak 0x23 #define USB_remoteWakeUp 1 #define USB_isDeviceEnumerated ((USB_configurationNumber != 0) ? TRUE : FALSE) #if (defined (__AVR_AT90USB1287__) || defined (__AVR_AT90USB1286__)) #define USB_PLLx03 ((1<<PLLP2) | (0<<PLLP1) | (1<<PLLP0)) #elif (defined (__AVR_AT90USB647__) || defined (__AVR_AT90USB646__) || defined (__AVR_ATmega32U6__)) #define USB_PLLx03 ((1<<PLLP2) | (1<<PLLP1) | (0<<PLLP0)) #endif #define USB_PLLx06 ((0<<PLLP2) | (1<<PLLP1) | (1<<PLLP0)) #define USB_startPLL(clockfactor) (PLLCSR = (clockfactor | (1<<PLLE))) #define USB_isPLLready (PLLCSR & (1<<PLOCK)) #define USB_waitPLLready while (!(PLLCSR & (1<<PLOCK))) #define USB_stopPLL (PLLCSR &= (~(1<<PLLE)), PLLCSR = 0) #if (F_CPU == 8000000) #define USB_autoStartPLL USB_startPLL (USB_PLLx06) #elif (F_CPU == 16000000) #define USB_autoStartPLL USB_startPLL (USB_PLLx03) #else #error "F_CPU should be defined with 8000000 or 16000000" #endif

Teil 2 kommt gleich:

- - - Aktualisiert - - -

...Teil 2 kommt (erst mal) doch nicht, da beim Antworten auf meinen eigenen Post wohl die Nachrichten vom Forumssystem zusammengefasst werden. Dann ist der Post aber zu lang. Wenn hier jemand antwortet kann ich den Restlichen Teil noch nachreichen.

Viele Grüße
Andreas