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- README
- ^^^^^^
- Toolchain
- ^^^^^^^^^
- A GNU GCC-based toolchain is assumed. The PATH environment variable should
- be modified to point to the correct path to the SH toolchain (if
- different from the default).
- If you have no ARM toolchain, one can be downloaded from the NuttX
- Bitbucket download site (https://bitbucket.org/nuttx/buildroot/downloads/).
- 1. You must have already configured Nuttx in <some-dir>nuttx.
- tools/configure.sh c5471evm/<sub-dir>
- 2. Download the latest buildroot package into <some-dir>
- 3. unpack
- 4. cd <some-dir>/buildroot
- 5. cp configs/arm-defconfig .config
- 6. make oldconfig
- 7. make
- 8. Make sure that the PATH variable includes the path to the newly built
- binaries.
- Issues
- ^^^^^^
- Title: UART RECONFIGURATION
- Description: UART re-configuration is untested and conditionally compiled out.
- Status: Open
- Priority: Medium. ttyS1 is not configured, but not used; ttyS0 is configured
- by the bootloader
- ARM/C5471-specific Configuration Options
- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- CONFIG_ARCH - Identifies the arch/ subdirectory. This should
- be set to:
- CONFIG_ARCH=arm
- CONFIG_ARCH_family - For use in C code:
- CONFIG_ARCH_ARM=y
- CONFIG_ARCH_architecture - For use in C code:
- CONFIG_ARCH_ARM7TDMI=y
- CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
- CONFIG_ARCH_CHIP=c5471
- CONFIG_ARCH_CHIP_name - For use in C code
- CONFIG_ARCH_CHIP_C5471
- CONFIG_ARCH_BOARD - Identifies the configs subdirectory and
- hence, the board that supports the particular chip or SoC.
- CONFIG_ARCH_BOARD=c5471evm (for the Spectrum Digital C5471 EVM)
- CONFIG_ARCH_BOARD_name - For use in C code
- CONFIG_ARCH_BOARD_C5471EVM (for the Spectrum Digital C5471 EVM)
- CONFIG_ARCH_LOOPSPERMSEC - Must be calibrated for correct operation
- of delay loops
- CONFIG_ENDIAN_BIG - define if big endian (default is little
- endian)
- CONFIG_ROM_VECTORS - should be defined for the C5471 because the
- interrupt vectors are in ROM
- CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to boards that
- have LEDs
- CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
- stack. If defined, this symbol is the size of the interrupt
- stack in bytes. If not defined, the user task stacks will be
- used during interrupt handling.
- CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
- C5471 specific device driver settings
- CONFIG_SERIAL_IRDA_CONSOLE - selects the IRDA UART for the
- console ant ttys0 (default is the modem UART).
- CONFIG_UART_*_HWFLOWCONTROL - enables hardware flow control
- CONFIG_UART_*_RXBUFSIZE - Characters are buffered as received.
- This specific the size of the receive buffer
- CONFIG_UART_*_TXBUFSIZE - Characters are buffered before
- being sent. This specific the size of the transmit buffer
- CONFIG_UART_*_BAUD - The configure BAUD of the UART. Must be
- CONFIG_UART_*_BITS - The number of bits. Must be either 7 or 8.
- CONFIG_UART_*_PARTIY - 0=no parity, 1=odd parity, 2=even parity
- CONFIG_UART_*_2STOP - Two stop bits
- C5471 Ethernet Driver settings
- CONFIG_C5471_NET_STATS
- CONFIG_C5471_PHY_AC101L or C5471_PHY_LU3X31T_T64
- CONFIG_C5471_AUTONEGOTIATION
- CONFIG_C5471_BASET100
- CONFIG_C5471_BASET10
- Configurations
- ^^^^^^^^^^^^^^
- Common Configuration Notes
- --------------------------
- 1. Each C5471 configuration is maintained in a sub-directory and
- can be selected as follow:
- tools/configure.sh c5471evm/<subdir>
- Where <subdir> is one of the configuration sub-directories described in
- the following paragraph.
- 2. These configurations use the mconf-based configuration tool. To
- change a configurations using that tool, you should:
- a. Build and install the kconfig-mconf tool. See nuttx/README.txt
- see additional README.txt files in the NuttX tools repository.
- b. Execute 'make menuconfig' in nuttx/ in order to start the
- reconfiguration process.
- 3. By default, all configurations assume the NuttX Buildroot toolchain
- under Linux (should work under Windows with Cygwin as well). This
- is easily reconfigured:
- CONFIG_HOST_LINUX=y
- CONFIG_ARM_TOOLCHAIN_BUILDROOT=y
- Configuration Sub-Directories
- -----------------------------
- nettest
- This configuration enables networking using the c5471's built-in Ethernet
- interface. It uses examples/nettest to exercise the TCP/IP network.
- nsh
- This configuration file builds NSH (examples/nsh) using the TELNET server
- front end
- httpd
- This configuration uses the tiny webserver for uIP.
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