hal_arm_at91sam7s.cdl

开放源码实时操作系统源码.

        display       "Divider for PLL clock"
        flavor        data
        legal_values  { 0 to 255 }
        default_value 24
        description   "
            The X-tal clock is divided by this value when generating the
            PLL clock"
    }       
        
    cdl_option CYGNUM_HAL_ARM_AT91_PLL_MULTIPLIER {
        display       "Multiplier for PLL clock"
        flavor        data
        legal_values  { 0 to 2047 }
        default_value 125
        description   "
           The X-tal clock is multiplied by this value when generating
           the PLL clock."
    }

    cdl_option CYGNUM_HAL_ARM_AT91_SLOW_CLOCK {
        display       "Slow clock frequency"
        flavor        data
        default_value { 32768 }
        description   "
            The slow clock is an LC oscillator which runs all the
            time. The accuracy of this clock is not very high and 
            is temperature dependent."
    }

    cdl_option CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS {
        display       "Number of communication channels on the board"
        flavor        data
        default_value 3
        description   "
            The AT91SAM7S development boards has two Serial port connectors.
            these correspond to USART0 and the Debug Serial port. The chip
            has a third serial port which does not have a 9pin D
            connector, but is accessible via the patch panel pins."
    }
 
    cdl_option CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL {
        display          "Debug serial port"
        active_if        CYGPRI_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL_CONFIGURABLE
        flavor data
        legal_values     0 to CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS-1
        default_value    2
        description      "
            The AT91SAM7S has three serial ports. This option
            chooses which port will be used to connect to a host
            running GDB."
     }
 
     cdl_option CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL {
         display          "Diagnostic serial port"
         active_if        CYGPRI_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_CONFIGURABLE
         flavor data
         legal_values     0 to CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS-1
         default_value    2
         description      "
            The AT91SAM7S board has three USART serial ports. This option
            chooses which port will be used for diagnostic output."
     }
     
     cdl_option CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD {
        display       "Diagnostic serial port baud rate"
        flavor        data
        legal_values  9600 19200 38400 57600 115200
        default_value 38400
        description   "
            This option selects the baud rate used for the diagnostic port."
    }
 
    cdl_option CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL_BAUD {
         display       "GDB serial port baud rate"
         flavor        data
         legal_values  9600 19200 38400 57600 115200
         default_value 38400
         description   "
            This option controls the baud rate used for the GDB connection."
     }
 
    cdl_option CYGBLD_HAL_ARM_AT91_BAUD_DYNAMIC {
        display       "Dynamic calculation of baud rate"
        default_value 0
        description   "
             The AT91SAM7S has a flexible clock generation mechanism 
             where the main clock used to drive peripherals can be
             changed during run time. Such changes affect the serial port
             baud rate generators. Enabling this option includes code 
             which calculates the baud rate setting dynamically from the
             current clock settings. Without this option a static
             calculation is performed which assumes the clock frequency
             has not been changed."
    }

    cdl_option CYGSEM_HAL_ROM_MONITOR {
        display       "Behave as a ROM monitor"
        flavor        bool
        default_value 0
        parent        CYGPKG_HAL_ROM_MONITOR
        requires      { CYG_HAL_STARTUP == "ROM" } 
        description   "
            Enable this option if this program is to be used as a ROM monitor,
            i.e. applications will be loaded into RAM on the board, and this
            ROM monitor may process exceptions or interrupts generated from the
            application. This enables features such as utilizing a separate
            interrupt stack when exceptions are generated."
    }

    cdl_option CYGSEM_HAL_USE_ROM_MONITOR {
         display       "Work with a ROM monitor"
         flavor        booldata
         legal_values  { "Generic" "GDB_stubs" }
         default_value { CYG_HAL_STARTUP == "RAM" ? "GDB_stubs" : 0 }
         parent        CYGPKG_HAL_ROM_MONITOR
         requires      { CYG_HAL_STARTUP == "RAM" }
         description   "
             Support can be enabled for different varieties of ROM monitor.
             This support changes various eCos semantics such as the encoding
             of diagnostic output, or the overriding of hardware interrupt
             vectors.
             Firstly there is \"Generic\" support which prevents the HAL
             from overriding the hardware vectors that it does not use, to
             instead allow an installed ROM monitor to handle them. This is
             the most basic support which is likely to be common to most
             implementations of ROM monitor.
             \"GDB_stubs\" provides support when GDB stubs are included in
             the ROM monitor or boot ROM."
    }

    cdl_component CYGPKG_REDBOOT_HAL_OPTIONS {
        display       "Redboot HAL options"
        flavor        none
        no_define
        parent        CYGPKG_REDBOOT
        active_if     CYGPKG_REDBOOT
        description   "
            This option lists the target's requirements for a valid Redboot
            configuration."

        cdl_option CYGBLD_BUILD_REDBOOT_BIN {
            display       "Build Redboot ROM binary image"
            active_if     CYGBLD_BUILD_REDBOOT
            default_value 1
            no_define
            description "This option enables the conversion of the Redboot ELF
                         image to a binary image suitable for ROM programming."
    
            make -priority 325 {
                <PREFIX>/bin/redboot.bin : <PREFIX>/bin/redboot.elf
                $(OBJCOPY) --strip-debug $< $(@:.bin=.img) 
                $(OBJCOPY) -O srec $< $(@:.bin=.srec)
                $(OBJCOPY) -O binary $< $@
            }
        }
    }

    cdl_component CYGBLD_GLOBAL_OPTIONS {
        display "Global build options"
        flavor  none
        parent  CYGPKG_NONE
        description   "
            Global build options including control over
            compiler flags, linker flags and choice of toolchain."

        cdl_option CYGBLD_GLOBAL_COMMAND_PREFIX {
            display "Global command prefix"
            flavor  data
            no_define
            default_value { "arm-elf" }
            description "
                This option specifies the command prefix used when
                invoking the build tools."
        }

        cdl_option CYGBLD_GLOBAL_CFLAGS {
            display "Global compiler flags"
            flavor  data
            no_define
            default_value { (CYGHWR_THUMB ? "-mthumb " : "") . (CYGBLD_ARM_ENABLE_THUMB_INTERWORK ? "-mthumb-interwork " : "") . "-mcpu=arm7tdmi -Wall -Wpointer-arith -Wstrict-prototypes -Winline -Wundef -Woverloaded-virtual -g -O2 -ffunction-sections -fdata-sections -fno-rtti -fno-exceptions -fvtable-gc -finit-priority" }
            description   "
                This option controls the global compiler flags which are used to
                compile all packages by default. Individual packages may define
                options which override these global flags."
        }

        cdl_option CYGBLD_GLOBAL_LDFLAGS {
            display "Global linker flags"
            flavor  data
            no_define
            default_value { (CYGHWR_THUMB ? "-mthumb " : "") . (CYGBLD_ARM_ENABLE_THUMB_INTERWORK ? "-mthumb-interwork " : "") . "-mcpu=arm7tdmi -Wl,--gc-sections -Wl,-static -g -nostdlib" }
            description   "
                This option controls the global linker flags. Individual
                packages may define options which override these global flags."
        }
    }

    cdl_component CYGHWR_MEMORY_LAYOUT {
        display "Memory layout"
        flavor data
        no_define
        calculated { (CYG_HAL_STARTUP == "RAM") ? \
                     "arm_" . CYGHWR_HAL_ARM_AT91SAM7 . "_ram" :
                     "arm_" . CYGHWR_HAL_ARM_AT91SAM7 . "_rom" }

        cdl_option CYGHWR_MEMORY_LAYOUT_LDI {
            display "Memory layout linker script fragment"
            flavor data
            no_define
            define -file system.h CYGHWR_MEMORY_LAYOUT_LDI
            calculated { (CYG_HAL_STARTUP == "RAM") ? \
                 "<pkgconf/mlt_arm_" . CYGHWR_HAL_ARM_AT91SAM7 . "_ram.ldi>" :
                 "<pkgconf/mlt_arm_" . CYGHWR_HAL_ARM_AT91SAM7 . "_rom.ldi>" }
        }

        cdl_option CYGHWR_MEMORY_LAYOUT_H {
            display "Memory layout header file"
            flavor data
            no_define
            define -file system.h CYGHWR_MEMORY_LAYOUT_H
            calculated { (CYG_HAL_STARTUP == "RAM") ? \
                 "<pkgconf/mlt_arm_" . CYGHWR_HAL_ARM_AT91SAM7 . "_ram.h>" :
                 "<pkgconf/mlt_arm_" . CYGHWR_HAL_ARM_AT91SAM7 . "_rom.h>" }
        }
    }
}