82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
// See LICENSE for license details.
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#ifndef _SIFIVE_HIFIVE1_H
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#define _SIFIVE_HIFIVE1_H
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#include <stdint.h>
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/****************************************************************************
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* GPIO Connections
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*****************************************************************************/
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// These are the GPIO bit offsets for the RGB LED on HiFive1 Board.
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// These are also mapped to RGB LEDs on the Freedom E300 Arty
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// FPGA
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// Dev Kit.
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#define RED_LED_OFFSET 22
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#define GREEN_LED_OFFSET 19
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#define BLUE_LED_OFFSET 21
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// These are the GPIO bit offsets for the differen digital pins
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// on the headers for both the HiFive1 Board and the Freedom E300 Arty FPGA Dev Kit.
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#define PIN_0_OFFSET 16
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#define PIN_1_OFFSET 17
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#define PIN_2_OFFSET 18
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#define PIN_3_OFFSET 19
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#define PIN_4_OFFSET 20
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#define PIN_5_OFFSET 21
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#define PIN_6_OFFSET 22
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#define PIN_7_OFFSET 23
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#define PIN_8_OFFSET 0
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#define PIN_9_OFFSET 1
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#define PIN_10_OFFSET 2
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#define PIN_11_OFFSET 3
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#define PIN_12_OFFSET 4
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#define PIN_13_OFFSET 5
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//#define PIN_14_OFFSET 8 //This pin is not connected on either board.
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#define PIN_15_OFFSET 9
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#define PIN_16_OFFSET 10
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#define PIN_17_OFFSET 11
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#define PIN_18_OFFSET 12
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#define PIN_19_OFFSET 13
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// These are *PIN* numbers, not
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// GPIO Offset Numbers.
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#define PIN_SPI1_SCK (13u)
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#define PIN_SPI1_MISO (12u)
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#define PIN_SPI1_MOSI (11u)
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#define PIN_SPI1_SS0 (10u)
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#define PIN_SPI1_SS1 (14u)
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#define PIN_SPI1_SS2 (15u)
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#define PIN_SPI1_SS3 (16u)
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#define SS_PIN_TO_CS_ID(x) \
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((x==PIN_SPI1_SS0 ? 0 : \
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(x==PIN_SPI1_SS1 ? 1 : \
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(x==PIN_SPI1_SS2 ? 2 : \
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(x==PIN_SPI1_SS3 ? 3 : \
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-1)))))
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// These buttons are present only on the Freedom E300 Arty Dev Kit.
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#ifdef HAS_BOARD_BUTTONS
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#define BUTTON_0_OFFSET 15
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#define BUTTON_1_OFFSET 30
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#define BUTTON_2_OFFSET 31
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#define INT_DEVICE_BUTTON_0 (INT_GPIO_BASE + BUTTON_0_OFFSET)
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#define INT_DEVICE_BUTTON_1 (INT_GPIO_BASE + BUTTON_1_OFFSET)
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#define INT_DEVICE_BUTTON_2 (INT_GPIO_BASE + BUTTON_2_OFFSET)
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#endif
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#define HAS_HFXOSC 1
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#define HAS_LFROSC_BYPASS 1
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#define RTC_FREQ 32768
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void write_hex(int fd, unsigned long int hex);
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#endif /* _SIFIVE_HIFIVE1_H */
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