diff options
Diffstat (limited to 'sdr-test-project/main.c')
| -rw-r--r-- | sdr-test-project/main.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/sdr-test-project/main.c b/sdr-test-project/main.c new file mode 100644 index 0000000..8ebaade --- /dev/null +++ b/sdr-test-project/main.c @@ -0,0 +1,147 @@ +/* ----------------------------------------------------------------------------
+ * 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>
+
+#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
+
+//------------------------------------------------------------------------------
+// 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 void DisplayMenu(void)
+{
+ printf("[1]");
+}
+
+//------------------------------------------------------------------------------
+/// 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 'i':
+ sam3u_e4k_init(&e4k, E4K_I2C_ADDR);
+ e4k_init(&e4k);
+ break;
+ }
+ }
+}
+
|