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attinykurs
Commit 11fb15c0 authored by medlem's avatar medlem
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Working USART and fixed comments and defines and tx string

parent 10bf504f
Pipeline #242 failed with stages
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      Showing with 249 additions and 125 deletions
      Session2-LF/UART/Debug/UART.hex
      View file @ 11fb15c0
      ......@@ -7,13 +7,20 @@
      :100060000C945A000C945A000C945A000C945A00A8
      :100070000C945A000C945A000C945A000C945A0098
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      :020178000A007B
      :00000001FF
      Session2-LF/UART/Debug/UART.lss
      View file @ 11fb15c0
      This diff is collapsed.
      Session2-LF/UART/Debug/UART.map
      View file @ 11fb15c0
      ......@@ -153,7 +153,7 @@ END GROUP
      .rela.plt
      *(.rela.plt)
      .text 0x00000000 0x114
      .text 0x00000000 0x168
      *(.vectors)
      .vectors 0x00000000 0xa0 C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.150/gcc/dev/atmega4809/avrxmega3/crtatmega4809.o
      0x00000000 __vector_default
      ......@@ -208,7 +208,6 @@ END GROUP
      *(.init9)
      *(.text)
      .text 0x000000b4 0x4 C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.150/gcc/dev/atmega4809/avrxmega3/crtatmega4809.o
      0x000000b4 __vector_38
      0x000000b4 __vector_22
      0x000000b4 __vector_28
      0x000000b4 __vector_1
      ......@@ -251,18 +250,24 @@ END GROUP
      0x000000b8 . = ALIGN (0x2)
      *(.text.*)
      .text.uart_init
      0x000000b8 0x24 UART-LF.o
      0x000000b8 0x2a UART-LF.o
      0x000000b8 uart_init
      .text.uart_transmit
      0x000000dc 0x10 UART-LF.o
      0x000000dc uart_transmit
      .text.main 0x000000ec 0x24 UART-LF.o
      0x000000ec main
      0x00000110 . = ALIGN (0x2)
      0x000000e2 0x10 UART-LF.o
      0x000000e2 uart_transmit
      .text.uart_transmit_string
      0x000000f2 0x1e UART-LF.o
      0x000000f2 uart_transmit_string
      .text.main 0x00000110 0x26 UART-LF.o
      0x00000110 main
      .text.__vector_38
      0x00000136 0x2e UART-LF.o
      0x00000136 __vector_38
      0x00000164 . = ALIGN (0x2)
      *(.fini9)
      .fini9 0x00000110 0x0 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avrxmega3\libgcc.a(_exit.o)
      0x00000110 _exit
      0x00000110 exit
      .fini9 0x00000164 0x0 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avrxmega3\libgcc.a(_exit.o)
      0x00000164 _exit
      0x00000164 exit
      *(.fini9)
      *(.fini8)
      *(.fini8)
      ......@@ -281,16 +286,18 @@ END GROUP
      *(.fini1)
      *(.fini1)
      *(.fini0)
      .fini0 0x00000110 0x4 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avrxmega3\libgcc.a(_exit.o)
      .fini0 0x00000164 0x4 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avrxmega3\libgcc.a(_exit.o)
      *(.fini0)
      0x00000114 _etext = .
      0x00000168 _etext = .
      .rodata
      .rodata 0x00004168 0x12 load address 0x00000168
      *(.rodata)
      *(.rodata*)
      .rodata.str1.1
      0x00004168 0x12 UART-LF.o
      *(.gnu.linkonce.r*)
      .data 0x00802800 0x0 load address 0x00000114
      .data 0x00802800 0x0 load address 0x0000017a
      [!provide] PROVIDE (__data_start, .)
      *(.data)
      *(.data*)
      ......@@ -305,8 +312,8 @@ END GROUP
      *(.bss*)
      *(COMMON)
      [!provide] PROVIDE (__bss_end, .)
      0x00000114 __data_load_start = LOADADDR (.data)
      0x00000114 __data_load_end = (__data_load_start + SIZEOF (.data))
      0x0000017a __data_load_start = LOADADDR (.data)
      0x0000017a __data_load_end = (__data_load_start + SIZEOF (.data))
      .noinit 0x00802800 0x0
      [!provide] PROVIDE (__noinit_start, .)
      ......@@ -377,41 +384,42 @@ END GROUP
      .debug_sfnames
      *(.debug_sfnames)
      .debug_aranges 0x00000000 0x30
      .debug_aranges 0x00000000 0x40
      *(.debug_aranges)
      .debug_aranges
      0x00000000 0x30 UART-LF.o
      0x00000000 0x40 UART-LF.o
      .debug_pubnames
      *(.debug_pubnames)
      .debug_info 0x00000000 0x27ba
      .debug_info 0x00000000 0x2823
      *(.debug_info .gnu.linkonce.wi.*)
      .debug_info 0x00000000 0x22b7 C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.150/gcc/dev/atmega4809/avrxmega3/crtatmega4809.o
      .debug_info 0x000022b7 0x503 UART-LF.o
      .debug_info 0x000022b7 0x56c UART-LF.o
      .debug_abbrev 0x00000000 0x226c
      .debug_abbrev 0x00000000 0x22d2
      *(.debug_abbrev)
      .debug_abbrev 0x00000000 0x20e0 C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.150/gcc/dev/atmega4809/avrxmega3/crtatmega4809.o
      .debug_abbrev 0x000020e0 0x18c UART-LF.o
      .debug_abbrev 0x000020e0 0x1f2 UART-LF.o
      .debug_line 0x00000000 0x36a
      .debug_line 0x00000000 0x3c8
      *(.debug_line .debug_line.* .debug_line_end)
      .debug_line 0x00000000 0x187 C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.150/gcc/dev/atmega4809/avrxmega3/crtatmega4809.o
      .debug_line 0x00000187 0x1e3 UART-LF.o
      .debug_line 0x00000187 0x241 UART-LF.o
      .debug_frame 0x00000000 0x44
      .debug_frame 0x00000000 0x8c
      *(.debug_frame)
      .debug_frame 0x00000000 0x44 UART-LF.o
      .debug_frame 0x00000000 0x8c UART-LF.o
      .debug_str 0x00000000 0x11f0
      .debug_str 0x00000000 0x1211
      *(.debug_str)
      .debug_str 0x00000000 0xe5d C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.150/gcc/dev/atmega4809/avrxmega3/crtatmega4809.o
      .debug_str 0x00000e5d 0x393 UART-LF.o
      0x3cc (size before relaxing)
      .debug_str 0x00000e5d 0x3b4 UART-LF.o
      0x3ed (size before relaxing)
      .debug_loc
      .debug_loc 0x00000000 0xd7
      *(.debug_loc)
      .debug_loc 0x00000000 0xd7 UART-LF.o
      .debug_macinfo
      *(.debug_macinfo)
      ......@@ -431,9 +439,9 @@ END GROUP
      .debug_pubtypes
      *(.debug_pubtypes)
      .debug_ranges 0x00000000 0x20
      .debug_ranges 0x00000000 0x30
      *(.debug_ranges)
      .debug_ranges 0x00000000 0x20 UART-LF.o
      .debug_ranges 0x00000000 0x30 UART-LF.o
      .debug_macro
      *(.debug_macro)
      ......
      Session2-LF/UART/Debug/UART.srec
      View file @ 11fb15c0
      ......@@ -8,13 +8,20 @@ S11300500C945A000C945A000C945A000C945A00B4
      S11300600C945A000C945A000C945A000C945A00A4
      S11300700C945A000C945A000C945A000C945A0094
      S11300800C945A000C945A000C945A000C945A0084
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      S11300A011241FBECFEFCDBFDFE3DEBF0E94760079
      S11300B00C9488000C940000E0E2F4E021E0258335
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      S11300C02183E0E6F8E06087BB27A92F982F872FCC
      S11300D0818783E0878380EC86830895E0E6F8E0F7
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      S1070110F894FFCF8D
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      S10B01601F901895F894FFCFDD
      S1130168446574746520657220656E2074657374C3
      S10501780A0077
      S9030000FC
      Session2-LF/UART/UART-LF.c
      View file @ 11fb15c0
      ......@@ -15,33 +15,33 @@
      /*
      In this exercise we will set up and use UART communication.
      The embedded debugger has a virtual com port that we will use to communicate with the computer.
      */
      */
      #define TX_PORT PORTB
      #define TX_PIN 0
      void uart_init(unsigned long baud){
      //From chapter 24.3 in datasheet
      //From chapter 22.3.1 in datasheet
      PORTB.OUTSET = (1 << 0); //Setting up TX pin as output
      PORTB.DIRSET = (1 << 0); //Setting up TX pin as output
      TX_PORT.OUTSET = (1 << TX_PIN); //Setting up TX pin as output
      TX_PORT.DIRSET = (1 << TX_PIN); //Setting up TX pin as output
      //USART3.BAUDH = (baud >> 8); //Shift register right by 8 bits to get the 8 high bits
      //USART3.BAUDL = baud; //Set baud rate without shifting to get the 8 low bits
      //It turns out the compiler can handle this automatically, meaning this works just as well:
      USART3.BAUDL = (uint8_t)baud;
      USART3.BAUDH = (uint8_t)(baud >> 8);
      //Set baud rate register
      USART3.BAUDL = (uint8_t) baud; //Set baud rate without shifting to get the 8 low bits
      USART3.BAUDH = (uint8_t)(baud >> 8); //Shift register right by 8 bits to get the 8 high bits
      //USART.CTRLC CMODE bits default to async, 1 stop bit, 8 bit character size
      USART3.CTRLC = (0x3 << 0);
      //Since all bits are default 0 we only need to change the character size part
      USART3.CTRLC = (0x3 << USART_CHSIZE0_bp);
      USART3.CTRLB = (1 << USART_RXEN_bp) | (1 << USART_TXEN_bp); //Enable RX and TX
      //Enable RX and TX
      USART3.CTRLB = (1 << USART_RXEN_bp) | (1 << USART_TXEN_bp);
      //USART3.CTRLA |= (1 << USART_RXCIE_bp); //Enable interrupts on incoming data
      //Enable interrupts on incoming data
      USART3.CTRLA |= (1 << USART_RXCIE_bp);
      }
      // function to transmit data
      ......@@ -55,11 +55,20 @@ void uart_transmit(char data){
      //wait for previous transmit to finish
      };
      //Put our new data into se sending register
      //Put our new data into tx data register
      USART3.TXDATAL = data;
      }
      //To send a string we can do this
      void uart_transmit_string(char* data) {
      while (*data != '\0') {
      uart_transmit(*data);
      data++;
      }
      }
      int main(void)
      {
      //Initialize the UART with our function.
      ......@@ -72,10 +81,21 @@ int main(void)
      {
      //We don't really need to do anything here.
      //the ISR will handle receiving.
      uart_transmit('h');
      uart_transmit_string("Dette er en test\n");
      _delay_ms(200);
      }
      }
      //Interrupt service routine for the receiver.
      ISR (USART3_RXC_vect) {
      //In the interrupt we will read the data in the receive buffer
      //First we should check that new data has arrived the receive buffer
      while (!(USART3.STATUS & (1 << USART_RXCIF_bp))){
      //wait for previous transmit to finish
      };
      //Store the data in a temporarily variable
      uint8_t tmp = USART3.RXDATAL;
      }
      \ No newline at end of file
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