94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/*
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* Copyright 2012 Michael Ossmann
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*
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* This file is part of HackRF.
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*
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* This program 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 2, or (at your option)
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* any later version.
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*
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* This program 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; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include <libopencm3/lpc43xx/gpio.h>
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#include <libopencm3/lpc43xx/scu.h>
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#include <libopencm3/lpc43xx/i2c.h>
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#include <libopencm3/lpc43xx/ssp.h>
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#include "hackrf_core.h"
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#include "max2837.h"
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void pin_setup(void)
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{
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/* Configure SCU Pin Mux as GPIO */
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scu_pinmux(SCU_PINMUX_LED1, SCU_GPIO_FAST);
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scu_pinmux(SCU_PINMUX_LED2, SCU_GPIO_FAST);
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scu_pinmux(SCU_PINMUX_LED3, SCU_GPIO_FAST);
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scu_pinmux(SCU_PINMUX_EN1V8, SCU_GPIO_FAST);
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/* Configure all GPIO as Input (safe state) */
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GPIO0_DIR = 0;
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GPIO1_DIR = 0;
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GPIO2_DIR = 0;
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GPIO3_DIR = 0;
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GPIO4_DIR = 0;
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GPIO5_DIR = 0;
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GPIO6_DIR = 0;
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GPIO7_DIR = 0;
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/* Configure GPIO2[1/2/8] (P4_1/2 P6_12) as output. */
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GPIO2_DIR |= (PIN_LED1|PIN_LED2|PIN_LED3);
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/* GPIO3[6] on P6_10 as output. */
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GPIO3_DIR |= PIN_EN1V8;
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/* Configure SSP1 Peripheral (to be moved later in SSP driver) */
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scu_pinmux(SCU_SSP1_MISO, (SCU_SSP_IO | SCU_CONF_FUNCTION5));
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scu_pinmux(SCU_SSP1_MOSI, (SCU_SSP_IO | SCU_CONF_FUNCTION5));
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scu_pinmux(SCU_SSP1_SCK, (SCU_SSP_IO | SCU_CONF_FUNCTION1));
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scu_pinmux(SCU_SSP1_SSEL, (SCU_SSP_IO | SCU_CONF_FUNCTION1));
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}
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int main(void)
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{
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u8 serial_clock_rate;
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u8 clock_prescale_rate;
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pin_setup();
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gpio_set(PORT_EN1V8, PIN_EN1V8); /* 1V8 on */
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cpu_clock_init();
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gpio_set(PORT_LED1_3, (PIN_LED1)); /* LED1 on */
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clock_prescale_rate = 2;
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serial_clock_rate = 128;
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ssp_init(SSP1_NUM,
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SSP_DATA_16BITS,
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SSP_FRAME_SPI,
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SSP_CPOL_0_CPHA_0,
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serial_clock_rate,
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clock_prescale_rate,
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SSP_MODE_NORMAL,
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SSP_MASTER,
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SSP_SLAVE_OUT_ENABLE);
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max2837_init();
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max2837_start();
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max2837_set_frequency(2441000000);
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while (1);
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max2837_stop();
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return 0;
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}
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