--- /dev/null
+/****************************************************************************
+ * apps/cc1101/main.c
+ *
+ * CC1101 example
+ *
+ * Copyright 2013-2014 Nathael Pajani <nathael.pajani@ed3l.fr>
+ *
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ *************************************************************************** */
+
+
+#include <stdint.h>
+#include "core/lpc_regs_12xx.h"
+#include "core/lpc_core_cm0.h"
+#include "core/pio.h"
+#include "core/system.h"
+#include "core/systick.h"
+#include "lib/stdio.h"
+#include "drivers/serial.h"
+#include "drivers/gpio.h"
+#include "extdrv/status_led.h"
+#include "drivers/ssp.h"
+#include "extdrv/cc1101.h"
+
+
+#define MODULE_VERSION 0x04
+#define MODULE_NAME "GPIO Demo Module"
+
+
+#define SELECTED_FREQ FREQ_SEL_48MHz
+
+/***************************************************************************** */
+/* Pins configuration */
+/* pins blocks are passed to set_pins() for pins configuration.
+ * Unused pin blocks can be removed safely with the corresponding set_pins() call
+ * All pins blocks may be safelly merged in a single block for single set_pins() call..
+ */
+const struct pio_config common_pins[] = {
+ /* UART 0 */
+ { LPC_UART0_RX_PIO_0_1, LPC_IO_DIGITAL },
+ { LPC_UART0_TX_PIO_0_2, LPC_IO_DIGITAL },
+ /* UART 1 */
+ { LPC_UART1_RX_PIO_0_8, LPC_IO_DIGITAL },
+ { LPC_UART1_TX_PIO_0_9, LPC_IO_DIGITAL },
+ /* SPI */
+ { LPC_SSP0_SCLK_PIO_0_14, LPC_IO_DIGITAL },
+ { LPC_SSP0_MOSI_PIO_0_17, LPC_IO_DIGITAL },
+ { LPC_SSP0_MISO_PIO_0_16, LPC_IO_DIGITAL },
+ ARRAY_LAST_PIO,
+};
+
+const struct pio cc1101_cs_pin = LPC_GPIO_0_15;
+const struct pio cc1101_miso_pin = LPC_SSP0_MISO_PIO_0_16;
+
+const struct pio status_led_green = LPC_GPIO_1_4;
+const struct pio status_led_red = LPC_GPIO_1_5;
+
+/***************************************************************************** */
+void system_init()
+{
+ /* Stop the watchdog */
+ stop_watchdog(); /* Do it right now, before it gets a chance to break in */
+
+ /* Note: Brown-Out detection must be powered to operate the ADC. adc_on() will power
+ * it back on if called after system_init() */
+ system_brown_out_detection_config(0);
+ system_set_default_power_state();
+ clock_config(SELECTED_FREQ);
+ set_pins(common_pins);
+ gpio_on();
+ status_led_config(&status_led_green, &status_led_red);
+ /* System tick timer MUST be configured and running in order to use the sleeping
+ * functions */
+ systick_timer_on(1); /* 1ms */
+ systick_start();
+}
+
+/* Define our fault handler. This one is not mandatory, the dummy fault handler
+ * will be used when it's not overridden here.
+ * Note : The default one does a simple infinite loop. If the watchdog is deactivated
+ * the system will hang.
+ */
+void fault_info(const char* name, uint32_t len)
+{
+ serial_write(1, name, len);
+ /* Wait for end of Tx */
+ serial_flush(1);
+ /* FIXME : Perform soft reset of the micro-controller ! */
+ while (1);
+}
+
+
+/***************************************************************************** */
+/* Data sent on radio comes from the UART, put any data received from UART in
+ * cc_tx_buff and send when either '\r' or '\n' is received.
+ * This function is very simple and data received between cc_tx flag set and
+ * cc_ptr rewind to 0 may be lost. */
+#define RF_BUFF_LEN 60
+static volatile uint32_t cc_tx = 0;
+static volatile uint8_t cc_tx_buff[RF_BUFF_LEN];
+static volatile uint8_t cc_ptr = 0;
+void cc1101_test_rf_serial_link_tx(uint8_t c)
+{
+ if (cc_ptr < RF_BUFF_LEN) {
+ cc_tx_buff[cc_ptr++] = c;
+ } else {
+ cc_ptr = 0;
+ }
+ if ((c == '\n') || (c == '\r')) {
+ cc_tx = 1;
+ }
+}
+
+/***************************************************************************** */
+int main(void) {
+ system_init();
+ uart_on(0, 115200, cc1101_test_rf_serial_link_tx);
+ uart_on(1, 115200, NULL);
+ ssp_master_on(0, LPC_SSP_FRAME_SPI, 8, 4*1000*1000); /* bus_num, frame_type, data_width, rate */
+
+ /* Radio */
+ cc1101_init(0, &cc1101_cs_pin, &cc1101_miso_pin); /* ssp_num, cs_pin, miso_pin */
+ cc1101_config();
+
+#define BUFF_LEN 60
+ while (1) {
+ char buff[BUFF_LEN];
+ int len = 0;
+ chenillard(25);
+
+ /* Any Data to send */
+ if (cc_tx) {
+ uint8_t cc_tx_data[RF_BUFF_LEN + 2];
+ uint8_t len = 0, tx_len = cc_ptr;
+ uint8_t val = 0;
+ int ret = 0;
+ /* Create a local copy */
+ memcpy((char*)&(cc_tx_data[2]), (char*)cc_tx_buff, tx_len);
+ /* "Free" the rx buffer as soon as possible */
+ cc_ptr = 0;
+ /* Prepare buffer for sending */
+ cc_tx_data[0] = tx_len + 1;
+ cc_tx_data[1] = 0; /* Broadcast */
+ /* Send */
+ ret = cc1101_send_packet(cc_tx_data, (tx_len + 2));
+ /* Give some feedback on UART 1 */
+ len = snprintf(buff, BUFF_LEN, "Tx ret: %d\r\n", ret);
+ serial_write(1, buff, len);
+ /* Wait a short time for data to be sent ... */
+ /* FIXME : This should be done using the packet sent signal from CC1101 on GDO pin */
+ msleep(2);
+ do {
+ ret = cc1101_tx_fifo_state();
+ if (ret < 0) {
+ len = snprintf(buff, BUFF_LEN, "Tx Underflow !\r\n");
+ serial_write(1, buff, len);
+ break;
+ }
+ } while (ret != 0);
+ /* Get back to Receiver mode */
+ cc1101_enter_rx_mode();
+ /* And give some feedback again */
+ val = cc1101_read_status();
+ len = snprintf(buff, BUFF_LEN, "Status : 0x%02x, Sending : %d\r\n", val, tx_len);
+ serial_write(1, buff, len);
+ serial_write(1, (char*)&(cc_tx_data[2]), tx_len);
+ cc_tx = 0;
+ }
+
+ /* Check for received data on RF link */
+ if (1) {
+ int ret = 0, rxlen = 0, addr = 0;
+ uint8_t status = 0;
+ /* Check for received packet (and get it if any) */
+ ret = cc1101_receive_packet((uint8_t*)buff, 50, &status);
+ cc1101_enter_rx_mode(); /* We should already be in receive mode. */
+ /* >0 means we got something, <0 is an error, =0 is no packet received */
+ if (ret > 0) {
+ uint8_t val = 0;
+ len = ret;
+ /* Send packet on UART 0 */
+ serial_write(0, &buff[2], (len - 2));
+ serial_write(0, "\r\n", 2);
+ /* And also some feedback on UART 1 */
+ rxlen = buff[0];
+ addr = buff[1];
+ val = cc1101_get_signal_strength_indication();
+ len = snprintf(buff, BUFF_LEN, "Status: %d, link: %d, len: %d/%d, addr: %d\r\n", status, val, rxlen, len, addr);
+ serial_write(1, buff, len);
+ } else if (ret < 0) {
+ /* Send error on UART 1 */
+ len = snprintf(buff, BUFF_LEN, "Rx Error: %d, len: %d\r\n", -ret, (status & 0x7F));
+ serial_write(1, buff, len);
+ }
+ }
+ }
+ return 0;
+}
+
+
+
+
