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diff --git a/user/bsps/arm/lpc24xx.rst b/user/bsps/arm/lpc24xx.rst new file mode 100644 index 0000000..ecf1d84 --- /dev/null +++ b/user/bsps/arm/lpc24xx.rst @@ -0,0 +1,78 @@ +.. SPDX-License-Identifier: CC-BY-SA-4.0 + +.. Copyright (C) 2017, 2019 embedded brains GmbH +.. Copyright (C) 2017, 2019 Sebastian Huber + +lpc24xx (NXP LPC17XX/LPC24XX/LPC40XX) +===================================== + +This BSP offers only several variants. The following variants support the +`Embedded Artits LPC4088 Developer's Kit <https://www.embeddedartists.com/products/lpc4088-developers-kit/>`_ +and earlier board generations: + +* lpc17xx_ea_ram + +* lpc17xx_ea_rom_int + +* lpc24xx_ea + +* lpc40xx_ea_ram + +* lpc40xx_ea_rom_int + +They can be used as a base line for customization. The basic hardware +initialization is performed by the BSP. It can be customized via configuration +options and configuration tables. See also +`<bsp/start-config.h> <https://git.rtems.org/rtems/tree/bsps/arm/lpc24xx/include/bsp/start-config.h>`_. + +Clock Driver +------------ + +The clock driver of the Cortex-M variants uses the `ARMv7-M Systick`. The +older ARM7TDMI variants use the `TMR0` timer module. + +Console Driver +-------------- + +The console driver supports up to four on-chip UARTs. Initialization can be +customized via the ``lpc24xx_uart_probe_1()``, ``lpc24xx_uart_probe_2()`` and +``lpc24xx_uart_probe_3()`` functions. + +I2C Bus Driver +-------------- + +I2C bus drivers are registered by the ``lpc24xx_register_i2c_0()``, +``lpc24xx_register_i2c_1()`` and ``lpc24xx_register_i2c_2()`` functions. The +I2C driver does not configure the pins. See also +`<bsp/i2c.h> <https://git.rtems.org/rtems/tree/bsps/arm/lpc24xx/include/bsp/i2c.h>`_. + +SPI Bus Driver +-------------- + +SPI bus drivers are registered by the ``lpc24xx_register_ssp_0()``, +``lpc24xx_register_ssp_1()`` and ``lpc24xx_register_ssp_2()`` functions. The +SSP driver does not configure the pins. See also +`<bsp/ssp.h> <https://git.rtems.org/rtems/tree/bsps/arm/lpc24xx/include/bsp/ssp.h>`_. + +Network Interface Driver +------------------------ + +Only a legacy network driver is support. For a `libbsd` base driver the +platform support is missing, see +`if_lpe.c <https://git.rtems.org/rtems-libbsd/tree/rtemsbsd/sys/arm/lpc/if_lpe.c>`_. + +USB Driver +---------- + +The USB host driver (OHCI) is provided by the `libbsd`. + +Framebuffer Driver +------------------ + +For a custom framebuffer driver see +`<bsp/lcd.h> <https://git.rtems.org/rtems/tree/bsps/arm/lpc24xx/include/bsp/lcd.h>`_. + +RTC Driver +---------- + +There is a standard RTC driver available using the on-chip RTC module. |