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