283 lines
9.2 KiB
C
283 lines
9.2 KiB
C
/****************************************************************************
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* boards/arm/tms570/tms570ls31x-usb-kit/include/board.h
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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_TMS570_TMS570LS31X_USB_KIT_INCLUDE_BOARD_H
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#define __BOARDS_ARM_TMS570_TMS570LS31X_USB_KIT_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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# include <stdbool.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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/* The tms570ls31x-usb-kit has a 16 MHz external crystal. */
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#define BOARD_FCLKIN_FREQUENCY 16000000 /* 16 MHz crystal frequency */
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/* The maximum frequency for the TMS570LS3137 is 180 MHz.
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*
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* REFCLKDIV controls input clock divider:
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*
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* NR = REFCLKDIV+1
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* Fintclk = Fclkin / NR
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*
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* PLLMUL controls multipler on divided input clock (Fintclk):
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*
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* Non-modulated:
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* NF = (PLLMUL + 256) / 256
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* Modulated:
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* NF = (PLLMUL + MULMOD + 256) / 256
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*
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* Foutputclk = Fintclk x NF (150MHz - 550MHz)
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*
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* ODPLL controls internal PLL output divider:
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*
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* OD = ODPLL+1
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* Fpostodclk = Foutputclock / OD
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*
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* Final divisor, R, controls PLL output:
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*
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* R = PLLDIV + 1
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* Fpllclock = Fpostodclk / R
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*
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* Or:
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*
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* Fpllclock = = (Fclkin / NR) x NF / OD / R
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*
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* In this case, we have:
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*
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* Fclkin = 16,000,000
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* NR = 6 (REFCLKDIV=5)
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* NF = 120 (PLLMUL = 119 * 256)
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* OD = 1 (ODPLL = 0)
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* R = 2 (PLLDIV=1)
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*
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* Then:
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*
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* Fintclk = 16 MHz / 6 = 2.667 MHz
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* Foutputclock = 2.667 MHz * 135 = 360 MHz
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* Fpostodclock = 320 MHz / 2 = 180 MHz
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* Fpllclock = 160 MHz / 1 = 180 MHz
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*/
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#define BOARD_PLL_NR 6 /* REFCLKDIV = 5 */
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#define BOARD_PLL_NF 135 /* PLLMUL = 119 * 256 */
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#define BOARD_PLL_OD 2 /* ODPLL = 1 */
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#define BOARD_PLL_R 1 /* PLLDIV = 1 */
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#define BOARD_PLL_FREQUENCY 180000000
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/* Clock Sources / Dividers
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*
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* GCLK and HCLK are both driven by PLL1.
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* VCLK is driven by HCLK (optionally by HCLK/2)
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* RTICLK source is VCLK/2 (optionally from VCLK)
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*/
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#define BOARD_VCLK_DIVIDER 2
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#define BOARD_VCLK2_DIVIDER 2
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#define BOARD_VCLK3_DIVIDER 2
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#define BOARD_RTICLK_DIVIDER 1
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#define BOARD_VCLK4_DIVIDER 1
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/* Resulting frequencies:
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*
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* GCLK and HCLK are both driven by PLL1.
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* VCLK is driven by HCLK (optionally by HCLK/2)
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* RTICLK source is VCLK/2 (optionally from VCLK)
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*/
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#define BOARD_GCLK_FREQUENCY BOARD_PLL_FREQUENCY
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#define BOARD_HCLK_FREQUENCY BOARD_PLL_FREQUENCY
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#define BOARD_VCLK_FREQUENCY BOARD_PLL_FREQUENCY/ BOARD_VCLK_DIVIDER
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#define BOARD_VCLK2_FREQUENCY BOARD_PLL_FREQUENCY / BOARD_VCLK2_DIVIDER
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#define BOARD_VCLK3_FREQUENCY BOARD_PLL_FREQUENCY / BOARD_VCLK3_DIVIDER
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#define BOARD_VCLKA1_FREQUENCY BOARD_VCLK1_FREQUENCY
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#define BOARD_VCLKA2_FREQUENCY BOARD_VCLK1_FREQUENCY
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#define BOARD_RTICLK_FREQUENCY (BOARD_PLL_FREQUENCY / (1 << BOARD_RTICLK_DIVIDER ))
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#define BOARD_VCLKA4_FREQUENCY BOARD_VCLK1_FREQUENCY / BOARD_VCLK4_DIVIDER
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/* FLASH wait states */
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#define BOARD_ASWAIT 1 /* No address setup wait states */
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#define BOARD_RWAIT 3 /* One read access wait state */
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#define BOARD_EWAIT 3 /* Four wait states for EEPROM access */
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/* PIN Multiplexor Initializer **********************************************/
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/* You may specify one alternative from each set
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* (the first is the default and, hence, could probably be omitted):
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*
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* 1. {GIOA0, SPI3nCS3}
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* 2. {GIOA1, SPI3nCS2}
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* 3. {GIOA2, SPI3nCS1}
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* 4. {GIOA3, SPI2nCS3}
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* 5. {GIOA4, SPI2nCS2}
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* 6. {GIOA5, EXTCLKIN}
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* 7. {GIOA6, SPI2nCS1, N2HET31}
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* 8. {GIOA7, N2HET29}
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* 9. {MIBSPI1nCS2, N2HET20, N2HET19}
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* 10. {SPI3CLK, EQEPA}
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* 11. {SPI3nENA, EQEPB}
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* 12. {SPI3nCS0, EQEPI}}
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* 13. {MIBSPI1nCS3, N2HET26}
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* 14. {ADEVT, N2HET28}
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* 15. {MIBSPI1nENA, N2HET23, NHET30}
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* 16. {MIBSPI1nCS1, EQEPS, N2HET17}
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*/
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#define BOARD_PINMUX_INITIALIZER \
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PINMUX_GIOA0_PIN, \
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PINMUX_GIOA1_PIN, \
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PINMUX_GIOA2_PIN, \
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PINMUX_GIOA3_PIN, \
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PINMUX_GIOA4_PIN, \
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PINMUX_GIOA5_PIN, \
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PINMUX_GIOA6_PIN, \
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PINMUX_GIOA7_PIN, \
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PINMUX_MIBSPI1NCS2_PIN, \
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PINMUX_SPI3CLK_PIN, \
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PINMUX_SPI3NENA_PIN, \
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PINMUX_SPI3NCS0_PIN, \
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PINMUX_MIBSPI1NCS3_PIN, \
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PINMUX_ADEVT_PIN, \
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PINMUX_MIBSPI1NENA_PIN, \
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PINMUX_MIBSPI1NCS1_PIN
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/* LED definitions **********************************************************/
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/* LEDs
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*
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* The launchpad has several LEDs:
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*
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* - LEd D1 (white) that connects to the USB +5V supply,
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* - LED D10 (red) that connects to the TMS570's NERROR pin,
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* - D5 (blue), D6 (blue), and D8 (blue) connect to the XDS100 FT2322,
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* - D7 (blue) connects to the XSD100 CPLD, and
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* - Two white, user LEDs labeled D12 that connects to the NHET08
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* pin and D11 that connects to GIOA2.
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*
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* NHET08 is one of 32 N2HET pins than can be available to the user if not
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* used by N2HET.
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* This implementation, however, uses only the single LED driven by GIOA2.
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* That LED is tied to ground and illuminated with a high level output value.
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*/
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/* LED index values for use with board_userled() */
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#define BOARD_LED_D11 0
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#define BOARD_NLEDS 1
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/* LED bits for use with board_userled_all() */
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#define BOARD_LED_D11_BIT (1 << BOARD_LED_D11)
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/* SPI1 Chip Select pin */
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#define SPI1_SDCARD_CS PIN_HIGH | PIN_PULLUP | PIN_PUPD_DIS | PIN_OPEN_DRAIN_DIS | \
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PIN_DIR_OUTPUT | GIO_FUNC | SPI_PORT1 | SPI_GIO_CS1
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/* Spi4 Chip Select pin */
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#define SPI4_SDCARD_CS PIN_HIGH | PIN_PULLUP | PIN_PUPD_DIS | PIN_OPEN_DRAIN_DIS | \
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PIN_DIR_OUTPUT | GIO_FUNC | SPI_PORT4 | SPI_GIO_CS0
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/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
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* defined. In that case, the usage by the board port is defined in
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* include/board.h and src/sam_autoleds.c. The LEDs are used to encode
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* OS-related events as follows:
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*
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* ---------------------- ---------------------------- ------
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* SYMBOL Meaning LED
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* ---------------------- ---------------------------- ------
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*/
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#define LED_STARTED 1 /* NuttX has been started OFF */
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#define LED_HEAPALLOCATE 0 /* Heap has been allocated OFF */
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#define LED_IRQSENABLED 0 /* Interrupts enabled OFF */
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#define LED_STACKCREATED 1 /* Idle stack created ON */
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#define LED_INIRQ 2 /* In an interrupt N/C */
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#define LED_SIGNAL 2 /* In a signal handler N/C */
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#define LED_ASSERTION 2 /* An assertion failed N/C */
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#define LED_PANIC 3 /* The system has crashed FLASH */
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#undef LED_IDLE /* MCU is is sleep mode Not used */
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/* Thus if the LED is statically on, NuttX has successfully booted and is,
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* apparently, running normally. If the LED is flashing at approximately
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* 2Hz, then a fatal error has been detected and the system has halted.
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*/
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/* Button definitions *******************************************************/
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/* Buttons
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*
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* The launchpad has three mechanical buttons.
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* Two of these are reset buttons:
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* One button is labeled PORRST performs a power-on reset and one labeled
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* RST performs an MCU reset.
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* Only one button is available for general software usage.
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* That button is labeled GIOA7 and is, obviously, sensed on GIOA7.
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*
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* GIOA7 is tied to ground, but will be pulled high if the GIOA7 button is
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* depressed.
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*/
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#define BUTTON_GIOA7 0
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#define NUM_BUTTONS 1
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#define BUTTON_GIOA7_BIT (1 << BUTTON_GIOA7)
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __BOARDS_ARM_TMS570_TMS570LS31X_USB_KIT_INCLUDE_BOARD_H */
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