diff options
Diffstat (limited to 'nuttx/configs/avr32dev1/README.txt')
| -rwxr-xr-x | nuttx/configs/avr32dev1/README.txt | 40 |
1 files changed, 29 insertions, 11 deletions
diff --git a/nuttx/configs/avr32dev1/README.txt b/nuttx/configs/avr32dev1/README.txt index fa10f90aa..3ad48e87d 100755 --- a/nuttx/configs/avr32dev1/README.txt +++ b/nuttx/configs/avr32dev1/README.txt @@ -9,6 +9,10 @@ Contents * Toolchains
* Development Environment
* GNU Toolchains
+ * IDEs
+ * AVR32 Bootloader
+ * AVR32DEV1 Configuration Options
+ * Configurations
Development Environment
^^^^^^^^^^^^^^^^^^^^^^^
@@ -54,13 +58,27 @@ IDEs 2) Start the NuttX build at least one time from the Cygwin command line
before trying to create your project. This is necessary to create
certain auto-generated files and directories that will be needed.
- 3) Set up include pathes: You will need include/, arch/arm/src/lm3s,
- arch/arm/src/common, arch/arm/src/cortexm3, and sched/.
+ 3) Set up include pathes: You will need include/, arch/avr/src/at91uc3,
+ arch/avr/src/common, arch/arm/src/avr, and sched/.
4) All assembly files need to have the definition option -D __ASSEMBLY__
on the command line.
Startup files will probably cause you some headaches. The NuttX startup file
- is arch/arm/src/lm3s/lm3s_vectors.S.
+ is arch/avr/src/avr3/up_nommuhead.S.
+
+AVR32 Bootloader
+^^^^^^^^^^^^^^^^
+
+ The linker scripts (ld.script) assume that you are using the bootloader.
+ The bootloader resides at 0x8000:0000 and so the ld.script files link
+ the application to execute after the bootloader at 0x8000:2000. To link
+ so that NuttX boots directly without using the bootloader, change the
+ flash definition from:
+
+ flash (rxai!w) : ORIGIN = 0x80002000, LENGTH = 256K - 8K
+
+ to:
+ flash (rxai!w) : ORIGIN = 0x80000000, LENGTH = 256K
AVR32DEV1 Configuration Options
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -139,16 +157,16 @@ AVR32DEV1 Configuration Options AT91UC3B0256 specific device driver settings
- CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the
- console and ttys0 (default is the UART0).
- CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received.
+ CONFIG_USARTn_SERIAL_CONSOLE - selects the USARTn for the
+ console and ttys0 (default is the USART0).
+ CONFIG_USARTn_RXBUFSIZE - Characters are buffered as received.
This specific the size of the receive buffer
- CONFIG_UARTn_TXBUFSIZE - Characters are buffered before
+ CONFIG_USARTn_TXBUFSIZE - Characters are buffered before
being sent. This specific the size of the transmit buffer
- CONFIG_UARTn_BAUD - The configure BAUD of the UART. Must be
- CONFIG_UARTn_BITS - The number of bits. Must be either 7 or 8.
- CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
- CONFIG_UARTn_2STOP - Two stop bits
+ CONFIG_USARTn_BAUD - The configure BAUD of the USART. Must be
+ CONFIG_USARTn_BITS - The number of bits. Must be either 7 or 8.
+ CONFIG_USARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
+ CONFIG_USARTn_2STOP - Two stop bits
Configurations
^^^^^^^^^^^^^^
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