mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-26 02:27:37 +00:00
137 lines
4.6 KiB
Plaintext
Executable File
137 lines
4.6 KiB
Plaintext
Executable File
/*
|
|
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* @defgroup LPC11xx LPC11xx Drivers
|
|
* @details This section describes all the supported drivers on the LPC11xx
|
|
* platform and the implementation details of the single drivers.
|
|
*
|
|
* @ingroup platforms
|
|
*/
|
|
|
|
/**
|
|
* @defgroup LPC11xx_HAL LPC11xx Initialization Support
|
|
* @details The LPC11xx HAL support is responsible for system initialization.
|
|
*
|
|
* @section lpc11xx_hal_1 Supported HW resources
|
|
* - SYSCON.
|
|
* - Flash.
|
|
* .
|
|
* @section lpc11xx_hal_2 LPC11xx HAL driver implementation features
|
|
* - Clock tree initialization.
|
|
* - Clock source selection.
|
|
* - Flash controller initialization.
|
|
* - SYSTICK initialization based on current clock and kernel required rate.
|
|
* .
|
|
* @ingroup LPC11xx
|
|
*/
|
|
|
|
/**
|
|
* @defgroup LPC11xx_GPT LPC11xx GPT Support
|
|
* @details The LPC11xx GPT driver uses the CTxxBy peripherals.
|
|
*
|
|
* @section lpc11xx_gpt_1 Supported HW resources
|
|
* - CT16B0.
|
|
* - CT16B1.
|
|
* - CT32B0.
|
|
* - CT32B1.
|
|
* .
|
|
* @section lpc11xx_gpt_2 LPC11xx GPT driver implementation features
|
|
* - Each timer can be independently enabled and programmed. Unused
|
|
* peripherals are left in low power mode.
|
|
* - Programmable CTxxBy interrupts priority level.
|
|
* .
|
|
* @ingroup LPC11xx
|
|
*/
|
|
|
|
/**
|
|
* @defgroup LPC11xx_PAL LPC11xx PAL Support
|
|
* @details The LPC11xx PAL driver uses the GPIO peripherals.
|
|
*
|
|
* @section lpc11xx_pal_1 Supported HW resources
|
|
* - GPIO0.
|
|
* - GPIO1.
|
|
* - GPIO2.
|
|
* - GPIO3.
|
|
* .
|
|
* @section lpc11xx_pal_2 LPC11xx PAL driver implementation features
|
|
* - 12 bits wide ports.
|
|
* - Atomic set/reset functions.
|
|
* - Atomic set+reset function (atomic bus operations).
|
|
* - Output latched regardless of the pad setting.
|
|
* - Direct read of input pads regardless of the pad setting.
|
|
* .
|
|
* @section lpc11xx_pal_3 Supported PAL setup modes
|
|
* - @p PAL_MODE_RESET.
|
|
* - @p PAL_MODE_UNCONNECTED.
|
|
* - @p PAL_MODE_INPUT.
|
|
* - @p PAL_MODE_OUTPUT_PUSHPULL.
|
|
* .
|
|
* Any attempt to setup an invalid mode is ignored.
|
|
*
|
|
* @section lpc11xx_pal_4 Suboptimal behavior
|
|
* Some GPIO features are less than optimal:
|
|
* - Pad/port toggling operations are not atomic.
|
|
* - Pull-up and Pull-down resistors cannot be programmed through the PAL
|
|
* driver and must be programmed separately using the IOCON peripheral.
|
|
* - Reading of the output latch for pads programmed as input is not possible,
|
|
* the input pin value is returned instead.
|
|
* .
|
|
* @ingroup LPC11xx
|
|
*/
|
|
|
|
/**
|
|
* @defgroup LPC11xx_SERIAL LPC11xx Serial Support
|
|
* @details The LPC11xx Serial driver uses the UART peripheral in a
|
|
* buffered, interrupt driven, implementation. The serial driver
|
|
* also takes advantage of the LPC11xx UARTs deep hardware buffers.
|
|
*
|
|
* @section lpc11xx_serial_1 Supported HW resources
|
|
* The serial driver can support any of the following hardware resources:
|
|
* - UART.
|
|
* .
|
|
* @section lpc11xx_serial_2 LPC11xx Serial driver implementation features
|
|
* - Clock stop for reduced power usage when the driver is in stop state.
|
|
* - Fully interrupt driven.
|
|
* - Programmable priority level.
|
|
* - Takes advantage of the input and output FIFOs.
|
|
* .
|
|
* @ingroup LPC11xx
|
|
*/
|
|
|
|
/**
|
|
* @defgroup LPC11xx_SPI LPC11xx SPI Support
|
|
* @details The SPI driver supports the LPC11xx SSP peripherals in an interrupt
|
|
* driven implementation.
|
|
* @note Being the SPI a fast peripheral, much care must be taken to
|
|
* not saturate the CPU bandwidth with an excessive IRQ rate. The
|
|
* maximum transfer bit rate is likely limited by the IRQ
|
|
* handling.
|
|
*
|
|
* @section lpc11xx_spi_1 Supported HW resources
|
|
* - SSP0.
|
|
* - SSP1 (where present).
|
|
* .
|
|
* @section lpc11xx_spi_2 LPC11xx SPI driver implementation features
|
|
* - Clock stop for reduced power usage when the driver is in stop state.
|
|
* - Each SSP can be independently enabled and programmed. Unused
|
|
* peripherals are left in low power mode.
|
|
* - Fully interrupt driven.
|
|
* - Programmable interrupt priority levels for each SSP.
|
|
* .
|
|
* @ingroup LPC11xx
|
|
*/
|