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