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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
#include <board.h>
#include <board_memories.h>
#include <pio/pio.h>
#include <irq/irq.h>
#include <twi/twid.h>
#include <twi/twi.h>
#include <dbgu/dbgu.h>
#include <ssc/ssc.h>
#include <utility/assert.h>
#include <utility/math.h>
#include <utility/trace.h>
#include <utility/led.h>
#include <string.h>
#include <dmad/dmad.h>
#include <dma/dma.h>
#include <tuner_e4k.h>
#include <si570.h>
#define SSC_MCK 49152000
// TWI clock
#define TWI_CLOCK 100000
// PMC define
#define AT91C_CKGR_PLLR AT91C_CKGR_PLLAR
#define AT91C_PMC_LOCK AT91C_PMC_LOCKA
#define AT91C_CKGR_MUL_SHIFT 16
#define AT91C_CKGR_OUT_SHIFT 14
#define AT91C_CKGR_PLLCOUNT_SHIFT 8
#define AT91C_CKGR_DIV_SHIFT 0
#define E4K_I2C_ADDR 0x64
#define SI570_I2C_ADDR 0x55
//------------------------------------------------------------------------------
// Local variables
//------------------------------------------------------------------------------
/// List of pins to configure.
static const Pin pins[] = {PINS_TWI0, PIN_PCK0, PINS_LEDS};
static Twid twid;
static struct e4k_state e4k;
static struct si570_ctx si570;
static void DisplayMenu(void)
{
printf("Menu:\r\n"
"[1] si570 init\r\n"
"[2] e4k init\r\n"
"[f] si570 10MHz freq\r\n"
"[r] si570 regdump\r\n"
);
}
//------------------------------------------------------------------------------
/// Main function
//------------------------------------------------------------------------------
int main(void)
{
unsigned char key;
unsigned char isValid;
// Configure all pins
PIO_Configure(pins, PIO_LISTSIZE(pins));
LED_Configure(0);
LED_Set(0);
LED_Configure(1);
LED_Set(1);
// Initialize the DBGU
TRACE_CONFIGURE(DBGU_STANDARD, 115200, BOARD_MCK);
printf("trace configured!!\n");
// Switch to Main clock
AT91C_BASE_PMC->PMC_MCKR = (AT91C_BASE_PMC->PMC_MCKR & ~AT91C_PMC_CSS) | AT91C_PMC_CSS_MAIN_CLK;
while ((AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY) == 0);
// Configure PLL to 98.285MHz
*AT91C_CKGR_PLLR = ((1 << 29) | (171 << AT91C_CKGR_MUL_SHIFT) \
| (0x0 << AT91C_CKGR_OUT_SHIFT) |(0x3f << AT91C_CKGR_PLLCOUNT_SHIFT) \
| (21 << AT91C_CKGR_DIV_SHIFT));
while ((AT91C_BASE_PMC->PMC_SR & AT91C_PMC_LOCK) == 0);
// Configure master clock in two operations
AT91C_BASE_PMC->PMC_MCKR = (( AT91C_PMC_PRES_CLK_2 | AT91C_PMC_CSS_PLLA_CLK) & ~AT91C_PMC_CSS) | AT91C_PMC_CSS_MAIN_CLK;
while ((AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY) == 0);
AT91C_BASE_PMC->PMC_MCKR = ( AT91C_PMC_PRES_CLK_2 | AT91C_PMC_CSS_PLLA_CLK);
while ((AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY) == 0);
// DBGU reconfiguration
DBGU_Configure(DBGU_STANDARD, 115200, SSC_MCK);
// Configure and enable the TWI (required for accessing the DAC)
*AT91C_PMC_PCER = (1<< AT91C_ID_TWI0);
TWI_ConfigureMaster(AT91C_BASE_TWI0, TWI_CLOCK, SSC_MCK);
TWID_Initialize(&twid, AT91C_BASE_TWI0);
printf("-- osmo-sdr testing project %s --\n\r", SOFTPACK_VERSION);
printf("-- %s\n\r", BOARD_NAME);
printf("-- Compiled: %s %s --\n\r", __DATE__, __TIME__);
// Enter menu loop
while (1) {
// Display menu
DisplayMenu();
// Process user input
key = DBGU_GetChar();
switch (key) {
case '1':
si570_init(&si570, (void *)AT91C_BASE_TWI0, SI570_I2C_ADDR);
break;
case '2':
sam3u_e4k_init(&e4k, E4K_I2C_ADDR);
e4k_init(&e4k);
break;
case 'f':
si570_set_freq(&si570, 10000000, 0);
break;
case 'r':
si570_regdump(&si570);
break;
}
}
}
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