mirror of https://github.com/wolfSSL/wolfBoot.git
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* spi_drv_nrf52.h
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*
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* wolfBoot is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* wolfBoot is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef SPI_DRV_NRF52_H_INCLUDED
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#define SPI_DRV_NRF52_H_INCLUDED
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#include <stdint.h>
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/** SPI settings **/
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#define GPIO_BASE (0x50000000)
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#define GPIO_OUT *((volatile uint32_t *)(GPIO_BASE + 0x504))
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#define GPIO_OUTSET *((volatile uint32_t *)(GPIO_BASE + 0x508))
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#define GPIO_OUTCLR *((volatile uint32_t *)(GPIO_BASE + 0x50C))
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#define GPIO_DIRSET *((volatile uint32_t *)(GPIO_BASE + 0x518))
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#define GPIO_PIN_CNF ((volatile uint32_t *)(GPIO_BASE + 0x700)) // Array
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#define GPIO_CNF_IN 0
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#define GPIO_CNF_OUT 3
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/* Pinout (P0.x) */
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#if 1
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#define SPI_CS_PIN 13
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#define SPI_MOSI_PIN 4
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#define SPI_MISO_PIN 5
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#define SPI_SCLK_PIN 30
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#endif
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#if 0
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#define SPI_SCLK_PIN 5
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#define SPI_MISO_PIN 6
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#define SPI_MOSI_PIN 7
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#define SPI_CS_PIN 8
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#endif
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#define SPI_CS_FLASH SPI_CS_PIN
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#define SPI_CS_PIO_BASE GPIO_BASE
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#endif
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