#include <ao.h>
#include <ao_cc1120.h>
#include <ao_exti.h>
+#include <ao_fec.h>
uint8_t ao_radio_wake;
uint8_t ao_radio_mutex;
uint8_t ao_radio_abort;
#define CC1120_DEBUG 1
+#define CC1120_TRACE 0
-uint32_t ao_radio_cal = 1186611;
+uint32_t ao_radio_cal = 0x6ca333;
#define FOSC 32000000
uint8_t data[2];
uint8_t d;
-#if CC1120_DEBUG
+#if CC1120_TRACE
printf("\t\tao_radio_reg_read (%04x): ", addr); flush();
#endif
if (CC1120_IS_EXTENDED(addr)) {
ao_radio_spi_send(data, d);
ao_radio_spi_recv(data, 1);
ao_radio_deselect();
-#if CC1120_DEBUG
+#if CC1120_TRACE
printf (" %02x\n", data[0]);
#endif
return data[0];
uint8_t data[3];
uint8_t d;
-#if CC1120_DEBUG
+#if CC1120_TRACE
printf("\t\tao_radio_reg_write (%04x): %02x\n", addr, value);
#endif
if (CC1120_IS_EXTENDED(addr)) {
- data[0] = ((1 << CC1120_READ) |
+ data[0] = ((0 << CC1120_READ) |
(0 << CC1120_BURST) |
CC1120_EXTENDED);
data[1] = addr;
d = 2;
} else {
- data[0] = ((1 << CC1120_READ) |
+ data[0] = ((0 << CC1120_READ) |
(0 << CC1120_BURST) |
addr);
d = 1;
{
uint8_t in;
-#if CC1120_DEBUG
+#if CC1120_TRACE
printf("\t\tao_radio_strobe (%02x): ", addr); flush();
#endif
ao_radio_select();
ao_radio_duplex(&addr, &in, 1);
ao_radio_deselect();
-#if CC1120_DEBUG
- printf("%02x\n", in);
+#if CC1120_TRACE
+ printf("%02x\n", in); flush();
#endif
return in;
}
CC1120_FIFO);
uint8_t status;
- printf ("num tx bytes: %d\n", ao_radio_reg_read(CC1120_NUM_TXBYTES));
ao_radio_select();
ao_radio_duplex(&addr, &status, 1);
ao_radio_spi_send_fixed(data, len);
ao_radio_deselect();
- printf ("num tx bytes: %d\n", ao_radio_reg_read(CC1120_NUM_TXBYTES));
return status;
}
*
* To make the tone last for 200ms, we need 2000 * .2 = 400 bits or 50 bytes
*/
-#define RDF_DRATE_E 6
-#define RDF_DRATE_M 511705
+#define RDF_DRATE_E 5
+#define RDF_DRATE_M 25166
#define RDF_PACKET_LEN 50
static const uint16_t rdf_setup[] = {
(CC1120_PKT_CFG1_ADDR_CHECK_CFG_NONE << CC1120_PKT_CFG1_ADDR_CHECK_CFG) |
(CC1120_PKT_CFG1_CRC_CFG_DISABLED << CC1120_PKT_CFG1_CRC_CFG) |
(0 << CC1120_PKT_CFG1_APPEND_STATUS)),
+ CC1120_PKT_CFG0, ((0 << CC1120_PKT_CFG0_RESERVED7) |
+ (CC1120_PKT_CFG0_LENGTH_CONFIG_FIXED << CC1120_PKT_CFG0_LENGTH_CONFIG) |
+ (0 << CC1120_PKT_CFG0_PKG_BIT_LEN) |
+ (0 << CC1120_PKT_CFG0_UART_MODE_EN) |
+ (0 << CC1120_PKT_CFG0_UART_SWAP_EN)),
};
-#define int_pin(w) printf("\t%s: %d\n", \
- w,\
- (AO_CC1120_INT_PORT.idr >> AO_CC1120_INT_PIN) & 1)
-
static uint8_t
ao_radio_marc_status(void)
{
return ao_radio_marc_status() == CC1120_MARC_STATUS1_RX_FINISHED;
}
+static void
+ao_radio_start_tx(void)
+{
+ ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_RX0TX1_CFG);
+ ao_exti_enable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN);
+ ao_radio_strobe(CC1120_STX);
+}
+
void
ao_radio_rdf(uint8_t len)
{
int i;
ao_radio_get(len);
- ao_radio_abort = 0;
+ ao_radio_wake = 0;
for (i = 0; i < sizeof (rdf_setup) / sizeof (rdf_setup[0]); i += 2)
ao_radio_reg_write(rdf_setup[i], rdf_setup[i+1]);
- ao_radio_reg_write(CC1120_PKT_LEN, len);
- int_pin ("Before CFG");
- ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_RX0TX1_CFG);
- int_pin ("After CFG");
- ao_radio_strobe(CC1120_STX);
- ao_exti_enable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN);
- int_pin ("After strobe");
- ao_delay(AO_MS_TO_TICKS(100));
+
ao_radio_fifo_write_fixed(ao_radio_rdf_value, len);
- int_pin ("After delay");
+
+ ao_radio_start_tx();
+
cli();
- for (i = 0; i < 20; i++) {
-#if CC1120_DEBUG
- ao_delay(AO_MS_TO_TICKS(50));
- int_pin ("Waited");
- printf ("Status %02x num_tx_bytes %d marc status %x\n",
- ao_radio_status(),
- ao_radio_reg_read(CC1120_NUM_TXBYTES),
- ao_radio_marc_status());
-#else
+ while (!ao_radio_wake && !ao_radio_abort)
ao_sleep(&ao_radio_wake);
-#endif
- }
+
sei();
- printf ("num_tx_bytes %d marc status %x\n",
- ao_radio_reg_read(CC1120_NUM_TXBYTES),
- ao_radio_marc_status());
if (!ao_radio_tx_done())
ao_radio_idle();
ao_radio_set_packet();
#endif
ao_radio_get(0xff);
ao_radio_strobe(CC1120_STX);
-#if CC1120_DEBUG
+#if CC1120_TRACE
{ int t;
for (t = 0; t < 10; t++) {
printf ("status: %02x\n", ao_radio_status());
void
ao_radio_send(void *d, uint8_t size)
{
- uint8_t marc_status;
-
+ uint8_t marc_status;
+ static uint8_t prepare[128];
+ uint8_t prepare_len;
+ static uint8_t encode[256];
+ uint8_t encode_len;
+ static uint8_t interleave[256];
+ uint8_t interleave_len;
+
+ ao_fec_dump_bytes(d, size, "Input");
+
+#if 1
+ prepare_len = ao_fec_prepare(d, size, prepare);
+ ao_fec_dump_bytes(prepare, prepare_len, "Prepare");
+
+ ao_fec_whiten(prepare, prepare_len, prepare);
+ ao_fec_dump_bytes(prepare, prepare_len, "Whiten");
+
+ encode_len = ao_fec_encode(prepare, prepare_len, encode);
+ ao_fec_dump_bytes(encode, encode_len, "Encode");
+
+ interleave_len = ao_fec_interleave(encode, encode_len, interleave);
+ ao_fec_dump_bytes(interleave, interleave_len, "Interleave");
+ ao_radio_get(interleave_len);
+ ao_radio_fifo_write(interleave, interleave_len);
+#else
ao_radio_get(size);
- ao_radio_wake = 0;
ao_radio_fifo_write(d, size);
- ao_exti_enable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN);
- ao_radio_strobe(CC1120_STX);
+#endif
+
+ ao_radio_wake = 0;
+
+ ao_radio_start_tx();
+
cli();
- for (;;) {
- if (ao_radio_wake) {
- marc_status = ao_radio_marc_status();
- if (marc_status != CC1120_MARC_STATUS1_NO_FAILURE)
- break;
- ao_radio_wake = 0;
- }
+ while (!ao_radio_wake && !ao_radio_abort)
ao_sleep(&ao_radio_wake);
- }
sei();
+ if (!ao_radio_tx_done())
+ ao_radio_idle();
ao_radio_put();
}
cli();
for (;;) {
if (ao_radio_abort)
+
break;
if (ao_radio_wake) {
marc_status = ao_radio_marc_status();
/*
* For our packet data, set the symbol rate to 38360 Baud
*
- * (2**20 - DATARATE_M) * 2 ** DATARATE_E
+ * (2**20 + DATARATE_M) * 2 ** DATARATE_E
* Rdata = -------------------------------------- * fosc
* 2 ** 39
*
- * DATARATE_M = 405002
- * DATARATE_E = 10
*
- * To make the tone last for 200ms, we need 2000 * .2 = 400 bits or 50 bytes
+ * DATARATE_M = 239914
+ * DATARATE_E = 9
*/
-#define PACKET_DRATE_E 10
-#define PACKET_DRATE_M 405002
+#define PACKET_DRATE_E 9
+#define PACKET_DRATE_M 239914
static const uint16_t packet_setup[] = {
CC1120_DEVIATION_M, PACKET_DEV_M,
CC1120_DRATE0, ((PACKET_DRATE_M >> 0) & 0xff),
CC1120_PKT_CFG2, ((CC1120_PKT_CFG2_CCA_MODE_ALWAYS_CLEAR << CC1120_PKT_CFG2_CCA_MODE) |
(CC1120_PKT_CFG2_PKT_FORMAT_NORMAL << CC1120_PKT_CFG2_PKT_FORMAT)),
- CC1120_PKT_CFG1, ((1 << CC1120_PKT_CFG1_WHITE_DATA) |
+ CC1120_PKT_CFG1, ((0 << CC1120_PKT_CFG1_WHITE_DATA) |
(CC1120_PKT_CFG1_ADDR_CHECK_CFG_NONE << CC1120_PKT_CFG1_ADDR_CHECK_CFG) |
(CC1120_PKT_CFG1_CRC_CFG_DISABLED << CC1120_PKT_CFG1_CRC_CFG) |
(1 << CC1120_PKT_CFG1_APPEND_STATUS)),
+ CC1120_PKT_CFG0, ((0 << CC1120_PKT_CFG0_RESERVED7) |
+ (CC1120_PKT_CFG0_LENGTH_CONFIG_FIXED << CC1120_PKT_CFG0_LENGTH_CONFIG) |
+ (0 << CC1120_PKT_CFG0_PKG_BIT_LEN) |
+ (0 << CC1120_PKT_CFG0_UART_MODE_EN) |
+ (0 << CC1120_PKT_CFG0_UART_SWAP_EN)),
};
void
for (i = 0; i < sizeof (radio_setup) / sizeof (radio_setup[0]); i += 2)
ao_radio_reg_write(radio_setup[i], radio_setup[i+1]);
- /* Enable marc status interrupt on gpio 2 pin */
- ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_MARC_MCU_WAKEUP);
+ ao_radio_set_packet();
- /* Enable the EXTI interrupt for the appropriate pin */
- ao_enable_port(AO_CC1120_INT_PORT);
- ao_exti_setup(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN, AO_EXTI_MODE_FALLING, ao_radio_isr);
+ ao_config_get();
- ao_radio_set_packet();
ao_radio_configured = 1;
}
ao_mutex_get(&ao_radio_mutex);
if (!ao_radio_configured)
ao_radio_setup();
+ ao_radio_reg_write(CC1120_FREQ2, ao_config.radio_setting >> 16);
+ ao_radio_reg_write(CC1120_FREQ1, ao_config.radio_setting >> 8);
+ ao_radio_reg_write(CC1120_FREQ0, ao_config.radio_setting);
ao_radio_reg_write(CC1120_PKT_LEN, len);
}
}
static void ao_radio_beep(void) {
- ao_radio_rdf(120);
+ ao_radio_rdf(RDF_PACKET_LEN);
+}
+
+static void ao_radio_packet(void) {
+ static uint8_t packet[] = {
+#if 1
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+#else
+ 3, 1, 2, 3
+#endif
+ };
+
+ ao_radio_send(packet, sizeof (packet));
}
#endif
{ ao_radio_test, "C <1 start, 0 stop, none both>\0Radio carrier test" },
#if CC1120_DEBUG
{ ao_radio_show, "R\0Show CC1120 status" },
- { ao_radio_beep, "B\0Emit an RDF beacon" },
+ { ao_radio_beep, "b\0Emit an RDF beacon" },
+ { ao_radio_packet, "p\0Send a test packet" },
#endif
{ 0, NULL }
};
void
ao_radio_init(void)
{
+ int i;
+
ao_radio_configured = 0;
ao_spi_init_cs (AO_CC1120_SPI_CS_PORT, (1 << AO_CC1120_SPI_CS_PIN));
+ AO_CC1120_SPI_CS_PORT.bsrr = ((uint32_t) (1 << AO_CC1120_SPI_CS_PIN));
+ for (i = 0; i < 10000; i++) {
+ if ((SPI_2_GPIO.idr & (1 << SPI_2_MISO)) == 0)
+ break;
+ }
+ AO_CC1120_SPI_CS_PORT.bsrr = (1 << AO_CC1120_SPI_CS_PIN);
+ if (i == 10000)
+ ao_panic(AO_PANIC_SELF_TEST);
+
+ /* Enable the EXTI interrupt for the appropriate pin */
+ ao_enable_port(AO_CC1120_INT_PORT);
+ ao_exti_setup(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN, AO_EXTI_MODE_FALLING, ao_radio_isr);
+
ao_cmd_register(&ao_radio_cmds[0]);
}
projects / fw / altos / blobdiff