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e09048cc88
Correct duplicate "is is" word found in 181 files throughout the codebase. In most cases "is is" was changed to "is", but in contexts like "MCU is is sleep mode" it was corrected to "MCU in sleep mode". Also fixes a "the the" typo in net/inet/inet_sockif.c. This is a pure style/documentation fix that improves code readability. Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
127 lines
4.4 KiB
C
127 lines
4.4 KiB
C
/****************************************************************************
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* boards/arm/nuc1xx/nutiny-nuc120/include/board.h
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_ARM_NUC1XX_NUTINY_NUC120_INCLUDE_BOARD_H
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#define __BOARDS_ARM_NUC1XX_NUTINY_NUC120_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifndef __ASSEMBLY__
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# include <stdint.h>
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Clocking *****************************************************************/
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/* Crystal frequencies */
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#define BOARD_XTALHI_FREQUENCY 12000000
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#define BOARD_XTALLO_FREQUENCY 32768
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/* PLL: The PLL must be 48MHz x N times when using USB
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*
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* FOUT = FIN x (NF/NR) x (1 / NO)
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* FIN = Input reference clock frequency
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* NF = Feedback divider
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* = (FB_DV + 2)
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* NR = Input divider
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* = (IN_DV + 2)
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* NO = 1 if OUT_DV == 0
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* 2 if OUT_DV == 1 or 2
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* 4 if OUT_DV == 3
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*
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* FOUT = 12000000 x 48 / 3 / 4
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* = 48MHz
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*/
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#define BOARD_PLL_FIN BOARD_XTALHI_FREQUENCY
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#define BOARD_PLL_FB_DV 46
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#define BOARD_PLL_NF (BOARD_PLL_FB_DV+2)
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#define BOARD_PLL_IN_DV 1
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#define BOARD_PLL_NR (BOARD_PLL_IN_DV+2)
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#define BOARD_PLL_OUT_DV 3
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#define BOARD_PLL_NO 4
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#define BOARD_PLL_FOUT \
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(BOARD_PLL_FIN * BOARD_PLL_NF / BOARD_PLL_NR / BOARD_PLL_NO)
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/* HCLK. FOUT is the HCLK source clock. */
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#define BOARD_HCLK_N 1
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#define BOARD_HCLK_FREQUENCY (BOARD_PLL_FOUT / BOARD_HCLK_N)
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/* USB. FOUT is the source. The USB CLK must be 48MHz */
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#define BOARD_USB_N 1
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#define BOARD_USB_FREQUENCY (BOARD_PLL_FOUT / BOARD_USB_N)
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/* LED definitions **********************************************************/
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/* The NuTiny has a single green LED that can be controlled from software.
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* This LED is connected to PIN17.
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* It is pulled high so a low value will illuminate the LED.
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*/
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#define BOARD_NLEDS 1
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/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board
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* the NuTiny.
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* The following definitions describe how NuttX controls the LEDs:
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*
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* SYMBOL Meaning LED state
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* Initially all LED is OFF
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* ------------------- ----------------------- ------------- ------------
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* LED_STARTED NuttX has been started LED ON
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* LED_HEAPALLOCATE Heap has been allocated LED ON
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* LED_IRQSENABLED Interrupts enabled LED ON
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* LED_STACKCREATED Idle stack created LED ON
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* LED_INIRQ In an interrupt LED should glow
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* LED_SIGNAL In a signal handler LED might glow
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* LED_ASSERTION An assertion failed LED ON while handling the
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* assertion
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* LED_PANIC The system has crashed LED Blinking at 2Hz
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* LED_IDLE NUC1XX is in sleep mode (Optional, not used)
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*/
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#define LED_STARTED 0
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#define LED_HEAPALLOCATE 0
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#define LED_IRQSENABLED 0
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#define LED_STACKCREATED 0
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#define LED_INIRQ 0
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#define LED_SIGNAL 0
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#define LED_ASSERTION 0
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#define LED_PANIC 0
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/* Button definitions *******************************************************/
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/* The NuTiny has no buttons */
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#define NUM_BUTTONS 0
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#endif /* __BOARDS_ARM_NUC1XX_NUTINY_NUC120_INCLUDE_BOARD_H */
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