150 lines
4.2 KiB
Plaintext
150 lines
4.2 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 files */setenv.sh 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 SH toolchain, one can be downloaded from the NuttX
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SourceForge download site (https://sourceforge.net/project/showfiles.php?group_id=189573).
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1. You must have already configured Nuttx in <some-dir>nuttx.
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cd tools
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./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 configs/arm-defconfig .config
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6. make oldconfig
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7. make
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8. Edit setenv.h so that the PATH variable includes the path to the
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newly built binaries.
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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 configs 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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CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
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cause a 100 second delay during boot-up. This 100 second delay
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serves no purpose other than it allows you to calibratre
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CONFIG_ARCH_LOOPSPERMSEC. You simply use a stop watch to measure
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the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
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the delay actually is 100 seconds.
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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_ETHERNET_PHY={ETHERNET_PHY_LU3X31T_T64,ETHERNET_PHY_AC101L}
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CONFIG_NET_C5471_AUTONEGOTIATION
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CONFIG_NET_C5471_BASET100
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CONFIG_NET_C5471_BASET10
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defconfig
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^^^^^^^^^
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The default configuration file, defconfig, performs a
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simple OS test using examples/ostest. This can be
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configuration as follows:
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cd tools
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./configure.sh c5471evm
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cd -
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. ./setenv.sh
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netconfig
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^^^^^^^^^
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This alternative configuration file, netconfig, may be used
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instead of the default configuration (defconfig). This
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configuration enables networking using the c5471's built-in
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Ethernet interface. It uses examples/nettest to excercise
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the TCP/IP network.
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nshconfig
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^^^^^^^^^
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This configuration file builds NSH (examples/nsh) using the
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TELNET server front end
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dhcpconfig
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^^^^^^^^^^
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This configuration exercises the DHCP client of netutils/dhcpc
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using examples/uip.
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These alternative configurations can be selected by (using
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uipconfig as example):
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(Seleted the default configuration as show above)
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cp config/c5471evm/uiponfig .config
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