366 lines
13 KiB
Plaintext
366 lines
13 KiB
Plaintext
README
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^^^^^^
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README for NuttX port to the Micromint Lincoln 60 board
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Contents
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^^^^^^^^
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Lincoln 60 development board
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Lincoln 60 Configuration Options
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USB Host Configuration
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Configurations
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Lincoln 60 board
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^^^^^^^^^^^^^^^^
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Memory Map
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----------
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Block Start Length
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Name Address
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--------------------- ---------- ------
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Internal flash 0x00000000 512K
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RAM 0x10000000 32K
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RAM1 0x2007C000 16K
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RAM2 0x20080000 16K
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GPIO Usage:
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-----------
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GPIO PIN SIGNAL NAME
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-------------------------------- ---- --------------
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P1[18] 32 LED1
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P3[26] 26 LED2
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P2[10] 53 BTN1
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microSD PIN SIGNAL NAME
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-------------------------------- ----- --------------
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P0[15] J12 3 SPI SCK
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P0[17] J12 4 SPI MISO
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P0[18] J12 5 SPI MOSI
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P0[16] J18 5 SPI slave select
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Console
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-------
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The Lincoln 60 has two serial connectors. The serial console defaults
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to COM1 (UART0).
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Lincoln 60 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_CORTEXM3=y
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CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
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CONFIG_ARCH_CHIP=lpc17xx
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CONFIG_ARCH_CHIP_name - For use in C code to identify the exact
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chip:
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CONFIG_ARCH_CHIP_LPC1768=y
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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=lincoln60 (for the Lincoln 60 board)
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CONFIG_ARCH_BOARD_name - For use in C code
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CONFIG_ARCH_BOARD_LINCOLN60=y
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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_RAM_SIZE - Describes the installed DRAM (CPU SRAM in this case):
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CONFIG_RAM_SIZE=(32*1024) (32Kb)
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There is an additional 32Kb of SRAM in AHB SRAM banks 0 and 1.
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CONFIG_RAM_START - The start address of installed DRAM
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CONFIG_RAM_START=0x10000000
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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_LEDS - Use LEDs to show state. Unique to board architecture.
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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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Individual subsystems can be enabled:
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CONFIG_LPC17_MAINOSC=y
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CONFIG_LPC17_PLL0=y
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CONFIG_LPC17_PLL1=n
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CONFIG_LPC17_ETHERNET=n
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CONFIG_LPC17_USBHOST=n
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CONFIG_LPC17_USBOTG=n
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CONFIG_LPC17_USBDEV=n
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CONFIG_LPC17_UART0=y
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CONFIG_LPC17_UART1=n
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CONFIG_LPC17_UART2=n
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CONFIG_LPC17_UART3=n
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CONFIG_LPC17_CAN1=n
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CONFIG_LPC17_CAN2=n
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CONFIG_LPC17_SPI=n
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CONFIG_LPC17_SSP0=n
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CONFIG_LPC17_SSP1=n
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CONFIG_LPC17_I2C0=n
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CONFIG_LPC17_I2C1=n
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CONFIG_LPC17_I2S=n
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CONFIG_LPC17_TMR0=n
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CONFIG_LPC17_TMR1=n
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CONFIG_LPC17_TMR2=n
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CONFIG_LPC17_TMR3=n
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CONFIG_LPC17_RIT=n
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CONFIG_LPC17_PWM0=n
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CONFIG_LPC17_MCPWM=n
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CONFIG_LPC17_QEI=n
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CONFIG_LPC17_RTC=n
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CONFIG_LPC17_WDT=n
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CONFIG_LPC17_ADC=n
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CONFIG_LPC17_DAC=n
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CONFIG_LPC17_GPDMA=n
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CONFIG_LPC17_FLASH=n
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LPC17xx specific device driver settings
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CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the
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console and ttys0 (default is the UART0).
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CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received.
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This specific the size of the receive buffer
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CONFIG_UARTn_TXBUFSIZE - Characters are buffered before
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being sent. This specific the size of the transmit buffer
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CONFIG_UARTn_BAUD - The configure BAUD of the UART. Must be
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CONFIG_UARTn_BITS - The number of bits. Must be either 7 or 8.
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CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
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CONFIG_UARTn_2STOP - Two stop bits
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LPC17xx specific CAN device driver settings. These settings all
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require CONFIG_CAN:
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CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID. Default
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Standard 11-bit IDs.
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CONFIG_CAN1_BAUD - CAN1 BAUD rate. Required if CONFIG_LPC17_CAN1 is defined.
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CONFIG_CAN2_BAUD - CAN1 BAUD rate. Required if CONFIG_LPC17_CAN2 is defined.
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CONFIG_CAN1_DIVISOR - CAN1 is clocked at CCLK divided by this number.
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(the CCLK frequency is divided by this number to get the CAN clock).
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Options = {1,2,4,6}. Default: 4.
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CONFIG_CAN2_DIVISOR - CAN2 is clocked at CCLK divided by this number.
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(the CCLK frequency is divided by this number to get the CAN clock).
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Options = {1,2,4,6}. Default: 4.
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CONFIG_CAN_TSEG1 - The number of CAN time quanta in segment 1. Default: 6
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CONFIG_CAN_TSEG2 = the number of CAN time quanta in segment 2. Default: 7
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LPC17xx specific PHY/Ethernet device driver settings. These setting
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also require CONFIG_NET and CONFIG_LPC17_ETHERNET.
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CONFIG_ETH0_PHY_KS8721 - Selects Micrel KS8721 PHY
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CONFIG_PHY_AUTONEG - Enable auto-negotion
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CONFIG_PHY_SPEED100 - Select 100Mbit vs. 10Mbit speed.
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CONFIG_PHY_FDUPLEX - Select full (vs. half) duplex
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CONFIG_NET_EMACRAM_SIZE - Size of EMAC RAM. Default: 16Kb
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CONFIG_NET_NTXDESC - Configured number of Tx descriptors. Default: 18
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CONFIG_NET_NRXDESC - Configured number of Rx descriptors. Default: 18
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CONFIG_NET_WOL - Enable Wake-up on Lan (not fully implemented).
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CONFIG_NET_REGDEBUG - Enabled low level register debug. Also needs
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CONFIG_DEBUG_FEATURES.
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CONFIG_NET_DUMPPACKET - Dump all received and transmitted packets.
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Also needs CONFIG_DEBUG_FEATURES.
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CONFIG_NET_HASH - Enable receipt of near-perfect match frames.
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CONFIG_LPC17_MULTICAST - Enable receipt of multicast (and unicast) frames.
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Automatically set if CONFIG_NET_IGMP is selected.
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LPC17xx USB Device Configuration
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CONFIG_LPC17_USBDEV_FRAME_INTERRUPT
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Handle USB Start-Of-Frame events.
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Enable reading SOF from interrupt handler vs. simply reading on demand.
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Probably a bad idea... Unless there is some issue with sampling the SOF
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from hardware asynchronously.
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CONFIG_LPC17_USBDEV_EPFAST_INTERRUPT
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Enable high priority interrupts. I have no idea why you might want to
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do that
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CONFIG_LPC17_USBDEV_NDMADESCRIPTORS
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Number of DMA descriptors to allocate in SRAM.
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CONFIG_LPC17_USBDEV_DMA
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Enable lpc17xx-specific DMA support
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CONFIG_LPC17_USBDEV_NOVBUS
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Define if the hardware implementation does not support the VBUS signal
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CONFIG_LPC17_USBDEV_NOLED
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Define if the hardware implementation does not support the LED output
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LPC17xx USB Host Configuration
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CONFIG_USBHOST_OHCIRAM_SIZE
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Total size of OHCI RAM (in AHB SRAM Bank 1)
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CONFIG_USBHOST_NEDS
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Number of endpoint descriptors
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CONFIG_USBHOST_NTDS
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Number of transfer descriptors
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CONFIG_USBHOST_TDBUFFERS
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Number of transfer descriptor buffers
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CONFIG_USBHOST_TDBUFSIZE
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Size of one transfer descriptor buffer
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CONFIG_USBHOST_IOBUFSIZE
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Size of one end-user I/O buffer. This can be zero if the
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application can guarantee that all end-user I/O buffers
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reside in AHB SRAM.
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USB Host Configuration
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^^^^^^^^^^^^^^^^^^^^^^
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The Lincoln 60 board supports a USB host interface. The hidkbd
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example can be used to test this interface.
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The NuttShell (NSH) lincoln60 can also be modified in order to support USB
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host operations. To make these modifications, do the following:
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1. First configure to build the NSH configuration from the top-level
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NuttX directory:
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cd tools
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./configure lincoln60/nsh
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cd ..
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2. Then edit the top-level .config file to enable USB host. Make the
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following changes:
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CONFIG_LPC17_USBHOST=y
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CONFIG_USBHOST=y
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CONFIG_SCHED_WORKQUEUE=y
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When this change is made, NSH should be extended to support USB flash
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devices. When a FLASH device is inserted, you should see a device
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appear in the /dev (pseudo) directory. The device name should be
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like /dev/sda, /dev/sdb, etc. The USB mass storage device, is present
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it can be mounted from the NSH command line like:
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ls /dev
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mount -t vfat /dev/sda /mnt/flash
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Files on the connect USB flash device should then be accessible under
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the mountpoint /mnt/flash.
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Configurations
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^^^^^^^^^^^^^^
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Each Lincoln 60 configuration is maintained in a sub-directory and can be selected
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as follow:
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cd tools
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./configure.sh lincoln60/<subdir>
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cd -
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Where <subdir> is one of the following:
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netnsh:
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Configures the NuttShell (nsh) located at apps/examples/nsh. This
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configuration is similar to the nsh configuration except that network
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upport is enabled.
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NOTES:
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1. This configuration uses the mconf-based configuration tool. To
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change this 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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2. This configuration is setup to build under Windows with Cygwin using
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the CodeSourcery toolchain. That is, however, easily reconfigured.
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3. This configuration uses a serial console on UART0 at 115200 8N1.
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This is the serial port at the connector labelled COM1 on the
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Lincoln 60.
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3. This example does initializes the network, then NSH sequentially. It
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does not use the NSH network monitor thread. There are two
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consequences to this: 1) There will be a delay booting to the NSH
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prompt while the network is brought up. This delay will normally be
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small but it the network cable is unconnected, it can be very long
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(you may thing that the firmware is hung). and 2) if the network is
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unplugged, then re-connected. The network will not automatically be
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brought back up. But you should be able to do that manually with
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the NSH ifup command.
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If you want better, more responsive network management, look into
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the NSH network monitor thread.
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nsh:
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Configures the NuttShell (nsh) located at apps/examples/nsh.
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NOTES:
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1. This configuration uses the mconf-based configuration tool. To
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change this 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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2. This configuration is setup to build under Linux with the Nutt
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buildroot toolchain. That is, however, easily reconfigured.
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3. This configuration uses a serial console on UART0 at 115200 8N1.
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This is the serial port at the connector labelled COM1 on the
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Lincoln 60.
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3. This configuration enables only the serial NSH interface. See
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notes above for enabling USB host support in this configuration.
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thttpd-binfs:
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This builds the THTTPD web server example using the THTTPD and
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the apps/examples/thttpd application. This version uses the built-in
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binary format with the BINFS file system and the Union File System.
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NOTES:
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1. Uses the CodeSourcery EABI toolchain under Windows. But that is
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easily reconfigured:
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CONFIG_HOST_WINDOWS=y : Windows
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CONFIG_HOST_WINDOWS_CYGWIN=y : under Cygwin
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CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery toolchain
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STATUS:
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2015-06-06: The BINFS CGI files are seems to be running, but the
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output that they generate does not appear in the browser window.
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I am suspecting that the redirected output is not working correctly
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with the BINFS applications.
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