CYGPKG_HAL_CORTEXM_LPC1XXX_MCB1700 -- eCos Support for the MCB1700 Board
The MCB1700 board contains a LPC1768 microcontroller. It has
connectors for two UARTs, MicroSD, USB, CAN, a PHY connected to
the on-chip MAC, JTAG and various other devices.
For typical eCos development, a GDB stub image is programmed into
internal FLASH and the CPU boots directly into that. It is then
possible to download and debug stand-alone and eCos applications
via the gdb debugger using UART1. Alternatively test programs may
be downloaded and debugged via a JTAG debugger attached to the
JTAG socket. Avaliable RAM is limited to 64KiB, split into two
disjoint 32KiB regions, so development for larger applications may
also consist of programming them to flash and using JTAG to debug
them from there.
This documentation describes platform-specific elements of the
MCB1700 board support within eCos. The LPC1XXX variant HAL
documentation covers various topics including HAL support common
to LPC1XXX variants, and on-chip device support. This document
complements the LPC1XXX documentation.
The LPC1768 has three on-chip memory regions. A RAM region of
32KiB is present at 0x0x10000000 and another is at 0x2007C000. A
FLASH region is present at 0x00000000.
The LPC1XXX variant HAL includes support for the on-chip serial
are documented in
the variant HAL. UART0 has reset and ISP control lines
connected to the DTR and RTS lines. eCos uses UART1 for console
and debug traffic, leaving UART0 free for ISP use.
The platform HAL contains configuration and definitions that allow
the SPI and I2C device drivers to be used. This includes access to
microSD cards via the on-board slot.
The on-chip Ethernet MAC and the DP83848 PHY are supported.
The board port is intended to work with GNU tools configured for
an arm-eabi target. The original port was done
using arm-eabi-gcc version 4.3.2,
arm-eabi-gdb version 6.8, and
binutils version 2.18.