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nuttx/configs/lpcxpresso-lpc54628/include/board.h

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/****************************************************************************
* configs/lpcxpresso-lpc54628/include/board.h
*
* Copyright (C) 2017-2018 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef _CONFIGS_LPCXPRESSO_LPC54628_INCLUDE_BOARD_H
#define _CONFIGS_LPCXPRESSO_LPC54628_INCLUDE_BOARD_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Clocking ****************************************************************/
#undef BOARD_180MHz
#define BOARD_220MHz 1
/* System PLL
*
* Notation:
* Fin = the input to the PLL.
* Fout = the output of the PLL.
* Fref = the PLL reference frequency, the input to the phase frequency
* detector.
* N = optional pre-divider value.
* M = feedback divider value, which represents the multiplier for the
* PLL.
* P = optional post-divider value. An additional divide-by-2 is
* included in the post-divider path.
*
* In all variations of normal mode, the following requirements must be met:
*
* -275 MHz ≤ Fcco ≤ 550 MHz.
* 4 kHz ≤ Fin / N ≤ 25 MHz.
*
* Normal mode with optional pre-divide. In the equations, use N = 1 when
* the pre-divider is not used. The extra divide by 2 is in the feedback
* divider path:
*
* Fout = Fcco = 2 x M x Fin / N
*
* Normal mode with post-divide and optional pre-divide. In the equations,
* use N = 1 when the pre-divider is not used:
*
* Fout = Fcco / (2 x P) = M x Fin / (N x P)
*/
#define BOARD_PLL_SOURCE /* Select source FR0 12MHz */
#define BOARD_PLL_FIN LPC54_FRO_12MHZ /* PLL input frequency */
#ifdef BOARD_180MHz
/* PLL Clock Source: CLKIN
* Main Clock Source: PLL
* Fout: 220000000
*/
# define BOARD_PLL_CLKSEL SYSCON_SYSPLLCLKSEL_CLKIN
# define BOARD_PLL_SELI 32 /* Bandwidth select I value */
# define BOARD_PLL_SELP 16 /* Bandwidth select P value */
# define BOARD_PLL_SELR 0 /* Bandwidth select R value */
# define BOARD_PLL_MDEC 8191 /* Encoded M-divider coefficient */
# define BOARD_PLL_NDEC 770 /* Encoded N-divider coefficient */
# define BOARD_PLL_PDEC 98 /* Encoded P-divider coefficient */
# define BOARD_PLL_FOUT 180000000U /* Pll output frequency */
#else /* BOARD_220MHz */
/* PLL Clock Source: FRO 12MHz
* Main Clock Source: PLL
* Fout: 220000000
*/
# define BOARD_PLL_CLKSEL SYSCON_SYSPLLCLKSEL_FFRO
# define BOARD_PLL_SELI 34 /* Bandwidth select I value */
# define BOARD_PLL_SELP 31 /* Bandwidth select P value */
# define BOARD_PLL_SELR 0 /* Bandwidth select R value */
# define BOARD_PLL_MDEC 13243 /* Encoded M-divider coefficient */
# define BOARD_PLL_NDEC 1 /* Encoded N-divider coefficient */
# define BOARD_PLL_PDEC 98 /* Encoded P-divider coefficient */
# define BOARD_PLL_FOUT 220000000 /* Pll output frequency */
#endif
#define BOARD_MAIN_CLK BOARD_PLL_FOUT /* Main clock frequency */
/* CPU Clock:
*
* AHB Clock Divider: 1
* AHB Clock Frequency: 180,000,000 or 220,000,000
*/
#define BOARD_AHBCLKDIV 1 /* (un-decremented) */
#define BOARD_AHB_FREQUENCY (BOARD_MAIN_CLK / BOARD_AHBCLKDIV)
#define BOARD_CPU_FREQUENCY BOARD_AHB_FREQUENCY
/* Fraction Rate Generator (FRG) Clock (Optional Flexcomm0 function clock)
*
* To use the fractional divider, the DIV value must be programmed with the
* fixed value of 256. Then:
*
* Ffrg = (Finput) / (1 + (MULT / DIV))
*
* Mainclock is used as the FRG clock source. Divider must be such that the
* FRG output frequency is less than equal to 48MHz
*
* MUL = (Finput - Ffrg) * 256) / Ffrg
*/
/* Revisit: FRGCLK <= 48MHz cannot be realized with the MainClk source */
#define BOARD FRGCLK_CLKSEL SYSCON_FRGCLKSEL_MAINCLK
#define BOARD_FRGCLK_INPUT BOARD_MAIN_CLK /* FRG input frequency */
#define BOARD_FRGCLK 48000000 /* May not be exact */
/* SysTick: The SysTick clock may be clocked internally either by the by the
* system clock (CLKSOURCE==1) or by the SysTick function clock (CLKSOURCE==0).
* The SysTick Function clock is equal to:
*
* Fsystick = Fmainclk / SYSTICKCLKDIV
*
* Tips for selecting BOARD_SYSTICKCLKDIV: The resulting SysTick reload value
* should be as large as possible, but must be less than 2^24:
*
* SYSTICKDIV > Fmainclk / CLK_TCK / 2^24
*
* The logic in lpc54_timerisr.c will always select the SysTick function clock
* as the source (CLKSOURCE==0). NOTE: When the system tick clock divider is
* selected as the clock source, the CPU clock must be at least 2.5 times
* faster than the divider output.
*
* SysTick Divider: (SYSTICKCLKDIV)
*/
#ifndef CONFIG_SCHED_TICKLESS
# if CONFIG_USEC_PER_TICK == 10000
# define BOARD_SYSTICKCLKDIV 1
# else
# error Missing SYSTICK divider
# endif
# define BOARD_SYSTICK_CLOCK (BOARD_AHB_FREQUENCY / BOARD_SYSTICKCLKDIV)
#endif
/* Flexcomm0: USART0 (REVIST) */
#define BOARD_FLEXCOMM0_CLKSEL SYSCON_FCLKSEL_FRO12M
#define BOARD_FLEXCOMM0_FCLK LPC54_FRO_12MHZ
/* Flexcomm2: I2C2 (REVIST) */
#define BOARD_FLEXCOMM2_CLKSEL SYSCON_FCLKSEL_FRO12M
#define BOARD_FLEXCOMM2_FCLK LPC54_FRO_12MHZ
/* EMC */
#ifdef BOARD_220MHz
#define BOARD_EMC_CLKDIV 3 /* EMC Clock = CPU FREQ/3 */
#else /* if BOARD_180MHz */
#define BOARD_EMC_CLKDIV 2 /* EMC Clock = CPU FREQ/2 */
#endif
#define BOARD_EMC_FREQUENCY (BOARD_CPU_FREQUENCY / BOARD_EMC_CLKDIV)
/* SD/MMC or SDIO interface/
/* SD/MMC function clock. The SDMMC source clock (Fsdmmc) is the main clock
* which may be divided down by the SYSCON module (8-bit divider, functional
* range, 1-256). The SD clock is obtained by dividing the source clock
* down once again (8-bit divider with functional range 1 (bypass) then 2-510
* in steps of 2).
*
* Fsdmmc = Fmck / SYSDIV
* Fsd = Fsdmmc / SDDIV
*
* The optimal SYSCON divisor (SYSDIV) is the smallest divisor that will
* assure that the smallest usable SD frequency (Fmin = 400KHz) can be
* attained without overflowing the final 8-bit divider (SDDIV). That is:
*
* SYSDIV = Fmck / 400,000 / 510
*
* Example: BOARD_MAIN_CLK=220MHz, CLKDIV=2, Finput=110MHz.
*
* REVISIT: We could get getter timing resolution if we were to reset the
* optimal SYSCON divider with each frequency change. For example, at 220
* MHz, we could set he divider to 1 for all operational frequencies.
*/
#define BOARD_SDMMC_CEIL(a,b) (((a) + (b) - 1) / (b))
#define BOARD_SDMMC_CLKSRC SYSCON_SDIOCLKSEL_MAINCLK
#define BOARD_SDMMC_CLKDIV BOARD_SDMMC_CEIL(BOARD_MAIN_CLK, 400000 * 510)
#define BOARD_SDMMC_FREQUENCY (BOARD_MAIN_CLK / BOARD_SDMMC_CLKDIV)
/* Mode-dependent function clock division
*
* Example: BOARD_SDMMC_FREQUENCY=110MHz
* BOARD_CLKDIV_INIT=276[275], Fsdmmc=399KHz (400KHz max)
* BOARD_CLKDIV_MMCXFR=6, Fsdmmc=18Mhz (20MHz max)
* BOARD_CLKDIV_SDWIDEXFR=6[5], Fsdmmc=18MHz (25MHz max)
* BOARD_CLKDIV_SDXFR=6[5], Fsdmmc=18MHz (25MHz max)
*
* NOTE: Clock division is 2*n. For example, value of 0 means divide by
* 2 * 0 = 0 (no division, bypass), value of 1 means divide by 2 * 1 = 2, value
* of 255 means divide by 2 * 255 = 510, and so on.
*
* SD/MMC logic will write the value ((clkdiv + 1) >> 1) as the divisor. So an
* odd value calculated below will be moved up to next higher divider value. So
* the value 3 will cause 2 to be written as the divider value and the effective
* divider will be 4.
*/
#define BOARD_CLKDIV_INIT BOARD_SDMMC_CEIL(BOARD_SDMMC_FREQUENCY, 400000)
#define BOARD_CLKDIV_MMCXFR BOARD_SDMMC_CEIL(BOARD_SDMMC_FREQUENCY, 20000000)
#define BOARD_CLKDIV_SDWIDEXFR BOARD_SDMMC_CEIL(BOARD_SDMMC_FREQUENCY, 25000000)
#define BOARD_CLKDIV_SDXFR BOARD_SDMMC_CEIL(BOARD_SDMMC_FREQUENCY, 25000000)
/* LED definitions *********************************************************/
/* The LPCXpress-LPC54628 has three user LEDs: D9, D11, and D12. These
* LEDs are for application use. They are illuminated when the driving
* signal from the LPC546xx is low. The LEDs are driven by ports P2-2 (D9),
* P3-3 (D11) and P3-14 (D12).
*/
/* LED index values for use with board_userled() */
#define BOARD_D9 0
#define BOARD_D11 1
#ifndef CONFIG_ARCH_LEDS
# define BOARD_D12 2
# define BOARD_NLEDS 3
#else
# define BOARD_NLEDS 2
#endif
/* LED bits for use with board_userled_all() */
#define BOARD_D9_BIT (1 << BOARD_D9)
#define BOARD_D11_BIT (1 << BOARD_D11)
#ifndef CONFIG_ARCH_LEDS
# define BOARD_D12_BIT (1 << BOARD_D12)
#endif
/* These LEDs are not used by the NuttX port unless CONFIG_ARCH_LEDS is
* defined. In that case, the usage by the board port is defined in
* include/board.h and src/lpc54_autoleds.c. The LEDs are used to encode
* OS-related events as follows:
*/
/* D9 D11 D12 */
#define LED_STARTED 0 /* OFF OFF OFF */
#define LED_HEAPALLOCATE 1 /* ON OFF OFF */
#define LED_IRQSENABLED 2 /* OFF ON OFF */
#define LED_STACKCREATED 3 /* OFF OFF OFF */
#define LED_INIRQ 4 /* NC NC ON (momentary) */
#define LED_SIGNAL 4 /* NC NC ON (momentary) */
#define LED_ASSERTION 4 /* NC NC ON (momentary) */
#define LED_PANIC 4 /* NC NC ON (2Hz flashing) */
#undef LED_IDLE /* Sleep mode indication not supported */
/* After booting, LEDs D9 and D11 are avaible for use by the user. If the
* system booted properly, D9 and D11 should be OFF and D12 should be glowing
* to indicate that interrupts are occurring. If D12 is flash at 2Hz, then
* the system has crashed.
*/
/* Button definitions *******************************************************/
/* The LPCXpresso has four switches:
*
* SW2 ISP2 P0.6
* SW3 ISP1 P0.5
* SW4 ISP0 P0.4
* SW5 User Button P1.1
*
* In all cased, the signal is low when the button is pressed.
*
* SW2, SW3, SW4 can be used to force the LPC546xx in to ISP boot modes.
* After boot these buttons could be used as user buttons. However, they are
* not available when the on-board SRDRAM is used because P0.4, P0.5, and
* P0.6 are also used as EMC_D2, EMC_D3, and EMC_D4, respectively.
*
* So SW5 is really the only button that that is generally available for
* software usage.
*/
#define BUTTON_USER 0
#define NUM_BUTTONS 1
#define BUTTON_USER_BIT (1 << BUTTON_USER)
/* Pin Disambiguation *******************************************************/
/* Flexcomm0/USART0
*
* USART0 connects to the serial bridge on LPC4322JET100 and is typically used
* for the serial console.
*
* BRIDGE_UART_RXD -> P0_29-ISP_FC0_RXD -> P0.29 GPIO_FC0_RXD_SDA_MOSI_2
* BRIDGE_UART_TXD <- P0_30-ISP_FC0_TXD <- P0.30 GPIO_FC0_TXD_SCL_MISO_2
*/
#define GPIO_USART0_RXD (GPIO_FC0_RXD_SDA_MOSI_2 | GPIO_FILTER_OFF)
#define GPIO_USART0_TXD (GPIO_FC0_TXD_SCL_MISO_2 | GPIO_FILTER_OFF)
/* An alternative for the serial console is a Arduino Uno compatible serial
* shield:
*
* Arduino Uno J13 Board Signal
* ----------- ------ ----------------
* D0 RX Pin 15 P3_26-FC4_RXD
* D1 TX Pin 13 P3_27-FC4_TXD
*/
#define GPIO_USART4_RXD (GPIO_FC4_RXD_SDA_MOSI_2 | GPIO_FILTER_OFF)
#define GPIO_USART4_TXD (GPIO_FC4_TXD_SCL_MISO_2 | GPIO_FILTER_OFF)
/* Flexcomm2/I2C
*
* For I2C:
* Type A & D pins need:
* GPIO_OPENDRAIN + GPIO_FILTER_OFF
* Type I pins need for Standard mode I2C need:
* GPIO_FILTER_OFF + GPIO_I2C_FILTER_ON + GPIO_I2CDRIVE_LOW
* Type I pins need for fast speed I2C need:
* GPIO_FILTER_OFF + GPIO_I2C_FILTER_ON or OFF +
* GPIO_I2CDRIVE_LOW or HIGH
* Type I pins need for high speed I2C need:
* GPIO_FILTER_OFF + GPIO_I2C_FILTER_OFF + GPIO_I2CDRIVE_HIGH
*
* There are several on-board devices using I2C2:
*
* Codec I2C address: 0x1a
* Accel I2C address: 0x1d
* Touch panel I2C address: 0x38
*
* In addition, these same I2C2 pins are brought out through D14 and D15 of
* the Arduino Uno connector.
*/
#if defined(CONFIG_LPC54_I2C_FAST)
# define _I2CFILTER GPIO_I2C_FILTER_OFF
# define _I2CDRIVE GPIO_I2CDRIVE_HIGH
#elif defined(CONFIG_LPC54_I2C_HIGH)
# define _I2CFILTER GPIO_I2C_FILTER_OFF
# define _I2CDRIVE GPIO_I2CDRIVE_HIGH
#else
# define _I2CFILTER GPIO_I2C_FILTER_ON
# define _I2CDRIVE GPIO_I2CDRIVE_LOW
#endif
#define GPIO_I2C2_SCL (GPIO_FC2_RTS_SCL_SSEL1_2 | \
GPIO_FILTER_OFF | _I2CFILTER | \
_I2CDRIVE)
#define GPIO_I2C2_SDA (GPIO_FC2_CTS_SDA_SSEL0_2 | \
GPIO_FILTER_OFF | _I2CFILTER | \
_I2CDRIVE)
/* Flexcomm2/SPI
*
* There are no SPI devices on board the LPCXpresso-LPC54628. SPI is
* available on the Arduino Uno compatible connector, however:
*
* Arduino Uno J9 Board Signal Pin Type
* ----------- ------ ---------------- ---------
* D10 SSEL Pin 15 P3_20-FC9_SCK Type D
* D11 MOSI Pin 13 P3_21-FC9_MOSI Type A
* D12 MISO Pin 11 P3_22-FC9_MISO Type A
* D13 SCK Pin 9 P3_30-FC9_SSELn0 Type D
*
* For SPI:
* Type A & D pins need:
* GPIO_PUSHPULL (on outputs) + GPIO_SLEW_STANDARD (Type D) +
* GPIO_FILTER_OFF
* GPIO_SLEW_FAST is optional for high data rates (Type D).
* Type I need:
* GPIO_I2C_FILTER_OFF + GPIO_I2CDRIVE_LOW + GPIO_FILTER_OFF +
* GPIO_I2CSLEW_GPIO
*/
#define GPIO_FC9_RXD_SDA_MOSI (GPIO_FC9_RXD_SDA_MOSI_1 | \
GPIO_PUSHPULL | GPIO_FILTER_OFF)
#define GPIO_FC9_TXD_SCL_MISO (GPIO_FC9_TXD_SCL_MISO_1 | \
GPIO_FILTER_OFF)
#define GPIO_FC9_SCK (GPIO_FC9_SCK_1 | GPIO_PUSHPULL | \
GPIO_SLEW_STANDARD | GPIO_FILTER_OFF)
/* SD/MMC
*
* P2_10-SD_CDn
* P2_6-SD_D0
* P2_7-SD_D1
* P2_8-SD_D2
* P2_9-SD_D3
* P2_3-SD_CLK
* P2_4-SD_CMD
* P2_5-SD_POW_EN
* P3_15-SD_WPn
*/
#define GPIO_SD_CARD_DET_N GPIO_SD_CARD_DET_N_2 /* P2.10 */
#define GPIO_SD_D0 GPIO_SD_D0_3 /* P2.6 */
#define GPIO_SD_D1 GPIO_SD_D1_3 /* P2.7 */
#define GPIO_SD_D2 GPIO_SD_D2_3 /* P2.8 */
#define GPIO_SD_D3 GPIO_SD_D3_3 /* P2.9 */
#define GPIO_SD_CLK GPIO_SD_CLK_3 /* P2.3 */
#define GPIO_SD_CMD GPIO_SD_CMD_3 /* P2.4 */
#define GPIO_SD_POW_EN GPIO_SD_POW_EN_2 /* P2.5 */
#define GPIO_SD_WR_PRT GPIO_SD_WR_PRT_2 /* P2.15 */
/* REVISIT: Due to chip errata, Rev. 1.7, Issue 3.7, DAT4-7 must also be
* configured. Otherwise the SD interface will not work.
*/
#define GPIO_SD_D4 (GPIO_SD_D4_3 | GPIO_PULLUP) /* P4.29 */
#define GPIO_SD_D5 (GPIO_SD_D5_3 | GPIO_PULLUP) /* P4.30 */
#define GPIO_SD_D6 (GPIO_SD_D6_3 | GPIO_PULLUP) /* P4.31 */
#define GPIO_SD_D7 (GPIO_SD_D7_3 | GPIO_PULLUP) /* P5.0 */
/* LCD
*
* There are no alternatives for LCD pins except for the VD0-VD3 pins.
* VD0-VD2 are not used in this hardware configuration. VD3 is on
* P2.21.
*/
#define GPIO_LCD_VD3 GPIO_LCD_VD3_1
/* Ethernet Clock
*
* The Lpcxpresso-LPC546258 uses a LAN8720A PHY in RMII mode. Clocking is
* provided via a 25MHz crystal (Y1). CLKOUT on P3.12 is an option if JS4
* is reversed.
*/
#define BOARD_PHY_CLOCK 25000000 /* 25MHz crystal */
/* Ethernet RMII mode pins:
*
* P4_16-ENET_MDIO Ethernet MIIM data input and output
* P4_15-ENET_MDC Ethernet MIIM clock
*
* P4_11-ENET_RXD0 Ethernet receive data 0-1
* P4_12-ENET_RXD1
* P4_8-ENET_TXD0 Ethernet transmit data 0-1
* P0_17-ENET_TXD1
* P4_10-ENET_CRS_DV Ethernet receive data valid
* P4_13-ENET_TX_EN Ethernet transmit data enable
*
* P4_14-ENET_RX_CLK REF_CLK, Reference clock
* P2_26-ENET_PHY_RSTn nRST (Controlled by board logic)
*
* NOTE: You must set JP11 and JP12 to close 1-2 to enable Ethernet
* port functionality. Some pins are shared with USB0 overcurrent
* feature.
*/
#define GPIO_ENET_MDIO GPIO_ENET_MDIO_2 /* P4.16 */
#define GPIO_ENET_MDC GPIO_ENET_MDC_2 /* P4.15 */
#define GPIO_ENET_RXD0 GPIO_ENET_RXD0_2 /* P4.11 */
#define GPIO_ENET_RXD1 GPIO_ENET_RXD1_2 /* P4.12 */
#define GPIO_ENET_TXD0 GPIO_ENET_TXD0_3 /* P4.8 */
#define GPIO_ENET_TXD1 GPIO_ENET_TXD1_4 /* P0.17 */
#define GPIO_ENET_RX_DV GPIO_ENET_RX_DV_2 /* P4.10 */
#define GPIO_ENET_TX_EN GPIO_ENET_TX_EN_2 /* P4.13 */
#define GPIO_ENET_REF_CLK GPIO_ENET_RX_CLK_2 /* P4.14 */
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* _CONFIGS_LPCXPRESSO_LPC54628_INCLUDE_BOARD_H */
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