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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 681 | walter | 1 | ******************************************************************************** |
| 2 | in "makefile": |
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| 3 | MCU = atmega644 |
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| 4 | ändern in: |
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| 5 | MCU = atmega644p |
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| 6 | |||
| 7 | in "makefile" an entsprechender Stelle hinzufügen: |
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| 8 | ifeq ($(MCU), atmega644p) |
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| 9 | FUSE_SETTINGS = -u -U lfuse:w:0xff:m -U hfuse:w:0xdf:m |
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| 10 | #FUSE_SETTINGS = -U lfuse:w:0xff:m -U hfuse:w:0xdf:m |
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| 11 | |||
| 12 | # -u bei neuen Controllern wieder einspielen |
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| 13 | |||
| 14 | HEX_NAME = MEGA644P |
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| 15 | endif |
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| 16 | |||
| 17 | |||
| 18 | ******************************************************************************** |
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| 19 | in "main.h" hinzufügen: (bei den anderen #defines) |
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| 20 | |||
| 21 | #if defined (__AVR_ATmega644P__) |
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| 22 | #define SYSCLK 20000000L //Quarz Frequenz in Hz |
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| 23 | //#define SYSCLK 16000000L //Quarz Frequenz in Hz |
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| 24 | #endif |
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| 25 | |||
| 26 | ******************************************************************************** |
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| 27 | in "rc.h" hinzufügen: (bei den anderen #defines) |
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| 28 | #if defined (__AVR_ATmega644P__) |
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| 29 | //#define TIMER_TEILER CK64 |
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| 30 | #define TIMER_RELOAD_VALUE 250 |
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| 31 | //#define TIMER_TEILER CK256 // bei 20MHz |
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| 32 | //#define TIMER_RELOAD_VALUE -78 // bei 20MHz |
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| 33 | #endif |
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| 34 | |||
| 35 | ******************************************************************************** |
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| 36 | in "uart.h" hinzufügen: (bei den anderen #defines) |
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| 37 | #if defined (__AVR_ATmega644P__) |
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| 38 | # define USR UCSR0A |
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| 39 | # define UCR UCSR0B |
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| 40 | # define UDR UDR0 |
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| 41 | # define UBRR UBRR0L |
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| 42 | # define EICR EICR0B |
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| 43 | # define TXEN TXEN0 |
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| 44 | # define RXEN RXEN0 |
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| 45 | # define RXCIE RXCIE0 |
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| 46 | # define TXCIE TXCIE0 |
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| 47 | # define U2X U2X0 |
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| 48 | # define UCSRB UCSR0B |
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| 49 | # define UDRE UDRE0 |
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| 50 | # define INT_VEC_RX SIG_USART_RECV |
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| 51 | # define INT_VEC_TX SIG_USART_TRANS |
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| 52 | #endif |
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| 53 | |||
| 54 | #define BAUD_RATE1 57600 //Baud Rate für UART2 |
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| 55 | |||
| 56 | ******************************************************************************** |
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| 57 | in "uart.c" hinzufügen: und die entsprechenden interrupt routinen mit code füllen |
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| 58 | |||
| 59 | |||
| 60 | //############################################################################ |
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| 61 | //INstallation der 2ten Seriellen Schnittstelle |
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| 62 | void UART1_Init (void) |
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| 63 | //############################################################################ |
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| 64 | { |
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| 65 | //Enable TXEN im Register UCR TX-Data Enable & RX Enable |
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| 66 | |||
| 67 | UCSR1B=(1 << TXEN) | (1 << RXEN); |
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| 68 | // UART Double Speed (U2X) |
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| 69 | UCSR1A |= (1<<U2X); |
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| 70 | // RX-Interrupt Freigabe |
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| 71 | UCSR1B |= (1<<RXCIE); |
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| 72 | // TX-Interrupt Freigabe |
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| 73 | UCSR1B |= (1<<TXCIE); |
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| 74 | |||
| 75 | //Teiler wird gesetzt |
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| 76 | UBRR1L=(SYSCLK / (BAUD_RATE1 * 8L) - 1); |
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| 77 | //UBRR1L = 33; |
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| 78 | //öffnet einen Kanal für printf (STDOUT) |
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| 79 | //fdevopen (uart_putchar, 0); |
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| 80 | //sbi(PORTD,4); |
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| 81 | Debug_Timer = SetDelay(200); |
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| 82 | } |
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| 83 | |||
| 84 | |||
| 85 | |||
| 86 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 87 | //++ Sende-Part der Datenübertragung an zweiten UART |
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| 88 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 89 | SIGNAL(SIG_USART1_RECV) |
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| 90 | { |
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| 91 | |||
| 92 | |||
| 93 | |||
| 94 | } |
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| 95 | |||
| 96 | |||
| 97 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 98 | //++ Empfangs-Part der Datenübertragung von zweitem UART |
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| 99 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 100 | SIGNAL(SIG_USART1_TRANS) |
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| 101 | { |
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| 102 | |||
| 103 | |||
| 104 | |||
| 105 | } |
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| 106 | |||
| 107 | |||
| 108 | |||
| 109 | ******************************************************************************** |
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| 110 | |||
| 111 | Was sonst noch zu beachten ist: |
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| 112 | |||
| 113 | in "main.c" an geeigneter Stelle (z.B. dort wo bereits "UART_Init" aufgerufen wird nun auch "UART1_Init" aufrufen |
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| 114 | |||
| 115 | |||
| 116 | Wenn in einer Routine der Zugriff auf ein alter UART Register vorkommt, welches nun auf UART1 (2ter Uart) gehen soll, dann muß der Zugriff natülich auch umgestellt werden: |
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| 117 | |||
| 118 | hierbei gilt: |
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| 119 | |||
| 120 | alt (Zugriff auf Uart0) > neu (Zugriff auf Uart1) |
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| 121 | |||
| 122 | USR > UCSR1A |
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| 123 | UCR > UCSR1B |
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| 124 | UDR > UDR1 |
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| 125 | UBRR > UBRR1L |
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| 126 | EICR > EICR1B |
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| 127 | TXEN > TXEN1 |
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| 128 | RXEN > RXEN1 |
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| 129 | RXCIE > RXCIE1 |
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| 130 | TXCIE > TXCIE1 |
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| 131 | U2X > U2X1 |
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| 132 | UCSRB > UCSR1B |
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| 133 | UDRE > UDRE1 |
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| 134 | |||
| 135 | UCSR0A > UCSR0A |
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| 136 | UCSR0B > UCSR0B |
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| 137 | UDR0 > UDR0 |
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| 138 | UBRR0L > UBRR0L |
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| 139 | EICR0B > EICR0B |
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| 140 | TXEN0 > TXEN0 |
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| 141 | RXEN0 > RXEN0 |
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| 142 | RXCIE0 > RXCIE0 |
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| 143 | TXCIE0 > TXCIE0 |
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| 144 | U2X0 > U2X0 |
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| 145 | UCSR0B > UCSR0B |
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| 146 | UDRE0 > UDRE0 |
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| 147 | |||
| 148 |