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simpletx: test program to transmit a carrier, does not work yet

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This commit is contained in:
Michael Ossmann
2012-06-07 22:19:32 -06:00
parent 52dae9ba73
commit 5c6542d827
3 changed files with 118 additions and 0 deletions
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10
firmware/simpletx/Makefile Normal file
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# Hey Emacs, this is a -*- makefile -*-
BINARY = simpletx
SRC = $(BINARY).c \
../common/hackrf_core.c \
../common/si5351c.c \
../common/max2837.c
include ../common/Makefile_inc.mk

15
firmware/simpletx/README Normal file
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This program activates the MAX2837 transceiver to transmit an unmodulated
carrier.
Required Lemondrop -> Jellybean connections:
SCK: Lemondrop P3 pin 2 -> Jellybean P2 2
MOSI: Lemondrop P3 pin 4 -> Jellybean P2 4
MISO: Lemondrop P3 pin 6 -> Jellybean P2 6
SSEL: Lemondrop P3 pin 3 -> Jellybean P2 3
SCL: Lemondrop P7 pin 3 -> Jellybean P6 pin 3
SDA: Lemondrop P7 pin 5 -> Jellybean P6 pin 5
SDA: Lemondrop P7 pin 6 -> Jellybean P6 pin 6
VCC: Lemondrop P4 pin 2, 4, or 6 -> Jellybean P17 pin 2, 4, or 6
1V8: Lemondrop P11 pin 2, 4, or 6 -> Jellybean P16 pin 2, 4, or 6
GND: Lemondrop P5 -> Jellybean P13

93
firmware/simpletx/simpletx.c Normal file
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/*
* Copyright 2012 Michael Ossmann
*
* This file is part of HackRF.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include <libopencm3/lpc43xx/gpio.h>
#include <libopencm3/lpc43xx/scu.h>
#include <libopencm3/lpc43xx/i2c.h>
#include <libopencm3/lpc43xx/ssp.h>
#include "hackrf_core.h"
#include "max2837.h"
void pin_setup(void)
{
/* Configure SCU Pin Mux as GPIO */
scu_pinmux(SCU_PINMUX_LED1, SCU_GPIO_FAST);
scu_pinmux(SCU_PINMUX_LED2, SCU_GPIO_FAST);
scu_pinmux(SCU_PINMUX_LED3, SCU_GPIO_FAST);
scu_pinmux(SCU_PINMUX_EN1V8, SCU_GPIO_FAST);
/* Configure all GPIO as Input (safe state) */
GPIO0_DIR = 0;
GPIO1_DIR = 0;
GPIO2_DIR = 0;
GPIO3_DIR = 0;
GPIO4_DIR = 0;
GPIO5_DIR = 0;
GPIO6_DIR = 0;
GPIO7_DIR = 0;
/* Configure GPIO2[1/2/8] (P4_1/2 P6_12) as output. */
GPIO2_DIR |= (PIN_LED1|PIN_LED2|PIN_LED3);
/* GPIO3[6] on P6_10 as output. */
GPIO3_DIR |= PIN_EN1V8;
/* Configure SSP1 Peripheral (to be moved later in SSP driver) */
scu_pinmux(SCU_SSP1_MISO, (SCU_SSP_IO | SCU_CONF_FUNCTION5));
scu_pinmux(SCU_SSP1_MOSI, (SCU_SSP_IO | SCU_CONF_FUNCTION5));
scu_pinmux(SCU_SSP1_SCK, (SCU_SSP_IO | SCU_CONF_FUNCTION1));
scu_pinmux(SCU_SSP1_SSEL, (SCU_SSP_IO | SCU_CONF_FUNCTION1));
}
int main(void)
{
u8 serial_clock_rate;
u8 clock_prescale_rate;
pin_setup();
gpio_set(PORT_EN1V8, PIN_EN1V8); /* 1V8 on */
cpu_clock_init();
gpio_set(PORT_LED1_3, (PIN_LED1)); /* LED1 on */
clock_prescale_rate = 2;
serial_clock_rate = 128;
ssp_init(SSP1_NUM,
SSP_DATA_16BITS,
SSP_FRAME_SPI,
SSP_CPOL_0_CPHA_0,
serial_clock_rate,
clock_prescale_rate,
SSP_MODE_NORMAL,
SSP_MASTER,
SSP_SLAVE_OUT_ENABLE);
max2837_init();
max2837_start();
max2837_set_frequency(2441000000);
while (1);
max2837_stop();
return 0;
}