C++ (Cpp) spi_set_rate_low Examples

Example #1

File: cph_deca.c Project: erudisill/decawave-cph-sam4s

void cph_deca_force_wakeup() {
	reset_DW1000();
	spi_set_rate_low();
	uint32_t id = dwt_readdevid();
	if (id == 0xFFFFFFFF) {
		TRACE("DW asleep..waking\r\n");
		// asleep, wakeup
		pio_set_pin_high(DW_WAKEUP_PIO_IDX);
		cph_millis_delay(1);
		pio_set_pin_low(DW_WAKEUP_PIO_IDX);
		cph_millis_delay(1);
	}
}

Example #2

File: cph_deca.c Project: erudisill/decawave-cph

void cph_deca_init_device() {
	dwt_txconfig_t txconfig;

	// Setup DECAWAVE
	reset_DW1000();
	spi_set_rate_low();
	dwt_initialise(DWT_LOADUCODE);
	spi_set_rate_high();

	dwt_configure(&config);

//	txconfig.PGdly = 0xC2;			// for channel 2
//	txconfig.power = 0x07274767;	// smart power, channel 2, 64MHz
//	dwt_setsmarttxpower(1);
//	dwt_configuretxrf(&txconfig);

	dwt_setrxantennadelay(RX_ANT_DLY);
	dwt_settxantennadelay(TX_ANT_DLY);
}

Example #3

File: cph_deca.c Project: erudisill/decawave-cph-sam4s

void cph_deca_init_device() {
	dwt_txconfig_t txconfig;

	TRACE("ant dly: %d %d\r\n", RX_ANT_DLY, TX_ANT_DLY);

	// Setup DECAWAVE
	reset_DW1000();
	spi_set_rate_low();

	dwt_initialise(DWT_LOADUCODE);
	spi_set_rate_high();

	dwt_configure(&cph_config->dwt_config);

	dwt_setrxantennadelay(RX_ANT_DLY);
	dwt_settxantennadelay(TX_ANT_DLY);

	TRACE("ant dly: %d %d\r\n", RX_ANT_DLY, TX_ANT_DLY);

	// Clear CLKPLL_LL
	dwt_write32bitreg(SYS_STATUS_ID, 0x02000000);
}

Example #4

File: listener.c Project: johncobb/echobase_sam4e16c

void listener_run(void) {

	uint32_t announce_coord_ts = 0;
	uint32_t elapsed = 0;
	uint32_t last_ts = 0;
	uint32_t count = 0;

	irq_init();
	pio_disable_interrupt(DW_IRQ_PIO, DW_IRQ_MASK);



	// Setup DW1000
	dwt_txconfig_t txconfig;

	// Setup DECAWAVE
	reset_DW1000();
	spi_set_rate_low();
	dwt_initialise(DWT_LOADUCODE);
	spi_set_rate_high();

	dwt_configure(&cph_config->dwt_config);

	dwt_setpanid(0x4350);
	dwt_setaddress16(0x1234);

	// Clear CLKPLL_LL
	dwt_write32bitreg(SYS_STATUS_ID, 0x02000000);

	uint32_t id = dwt_readdevid();
	printf("Device ID: %08X\r\n", id);


#if 1

	dwt_setcallbacks(0, rxcallback);
	dwt_setinterrupt(
			DWT_INT_TFRS | DWT_INT_RFCG
					| (DWT_INT_ARFE | DWT_INT_RFSL | DWT_INT_SFDT | DWT_INT_RPHE | DWT_INT_RFCE | DWT_INT_RFTO /*| DWT_INT_RXPTO*/),
			1);

	pio_enable_interrupt(DW_IRQ_PIO, DW_IRQ_MASK);

	dwt_rxenable(0);

	while (1) {

		elapsed = cph_get_millis() - last_ts;
		if (elapsed > 5000) {
			printf("alive %d\r\n", count++);
			last_ts = cph_get_millis();
		}

		if (trx_signal == SIGNAL_RCV) {
			printf("[RCV] %d - ", frame_len);
			for (int i = 0; i < frame_len; i++) {
				printf("%02X ", rx_buffer[i]);
			}
			printf("\r\n");
			trx_signal = SIGNAL_EMPTY;
			dwt_rxenable(0);
		}
		else if(trx_signal == SIGNAL_ERR) {
			printf("ERROR: %08X\r\n", error_status_reg);
			trx_signal = SIGNAL_EMPTY;
			dwt_rxenable(0);
		}
		else if(trx_signal == SIGNAL_ERR_LEN) {
			printf("ERROR LENGTH: %08X\r\n", error_status_reg);
			trx_signal = SIGNAL_EMPTY;
			dwt_rxenable(0);
		}
	}

#else

	while (1) {

		/* Activate reception immediately. */
		dwt_rxenable(0);

		while (!((status_reg = dwt_read32bitreg(SYS_STATUS_ID)) & (SYS_STATUS_RXFCG | SYS_STATUS_ALL_RX_ERR))) {
		};

		if (status_reg & SYS_STATUS_RXFCG) {
			uint32 frame_len;

			dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_RXFCG);

			frame_len = dwt_read32bitreg(RX_FINFO_ID) & RX_FINFO_RXFL_MASK_1023;
			if (frame_len <= MAXRXSIXZE) {
				dwt_readrxdata(rx_buffer, frame_len, 0);
			} else {
				frame_len = 0;
			}

			if (frame_len > 0) {
				printf("[RCV] ");
				for (int i = 0; i < frame_len; i++) {
					printf("%02X ", rx_buffer[i]);
				}
				printf("\r\n");
			} else {
				printf("ERROR: frame_len == %d\r\n", frame_len);
			}

		} else {

			printf("ERROR: dwt_rxenable has status of %08X\r\n", status_reg);
			/* Clear RX error events in the DW1000 status register. */
			dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_ALL_RX_ERR | SYS_STATUS_CLKPLL_LL);
		}
	}
#endif

}