--- /dev/null
+/****************************************************************************
+ * apps/ledstrip/main.c
+ *
+ * WS2812 Chainable leds example using Adafruit les strip
+ *
+ * Copyright 2013-2015 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 "lib/stdint.h"
+#include "core/system.h"
+#include "core/systick.h"
+#include "core/pio.h"
+#include "lib/stdio.h"
+#include "drivers/serial.h"
+#include "drivers/gpio.h"
+#include "drivers/adc.h"
+#include "drivers/i2c.h"
+#include "drivers/timers.h"
+
+#include "extdrv/ws2812.h"
+#include "extdrv/tmp101_temp_sensor.h"
+
+
+#define MODULE_VERSION 0x01
+#define MODULE_NAME "E-Xanh Gardener"
+
+
+#define SELECTED_FREQ FREQ_SEL_36MHz
+
+#define APP_NB_LEDS 1
+
+/***************************************************************************** */
+/* Initial Pins configuration */
+const struct pio_config common_pins[] = {
+ /* UART 0 */
+ { LPC_GPIO_0_0, LPC_UART0_RX, 0 },
+ { LPC_GPIO_0_4, LPC_UART0_TX, 0 },
+ /* I2C 0 */
+ { LPC_I2C0_SCL_PIO_0_10, LPC_FIXED, 0 },
+ { LPC_I2C0_SDA_PIO_0_11, LPC_FIXED, 0 },
+ /* ADC */
+ { LPC_ADC_AD2_PIO_0_14, LPC_FIXED, 0 }, /* Debug */
+ { LPC_ADC_AD9_PIO_0_17, LPC_FIXED, 0 },
+ { LPC_ADC_AD10_PIO_0_13, LPC_FIXED, 0 },
+ /* Timers */
+ { LPC_GPIO_0_8, LPC_SCT_POUT0, 0 },
+ { LPC_GPIO_0_9, LPC_SCT_POUT1, 0 },
+ { LPC_GPIO_0_3, LPC_SCT_POUT2, 0 }, /* Debug */
+ /* GPIO */
+ { LPC_GPIO_0_2, LPC_GPIO, 0 },
+ { LPC_GPIO_0_12, LPC_GPIO, 0 },
+ ARRAY_LAST_PIO,
+};
+
+/* Configure pins as used for capacitance sensing */
+const struct pio_config capacitance_pins[] = {
+ { LPC_GPIO_0_9, LPC_SCT_POUT1, 0 },
+ { LPC_ADC_AD9_PIO_0_17, LPC_FIXED, 0 },
+ ARRAY_LAST_PIO,
+};
+
+#define TMP101_ADDR 0x94 /* Pin Addr0 (pin5 of tmp101) connected to VCC */
+struct tmp101_sensor_config tmp101_sensor = {
+ .bus_num = I2C0,
+ .addr = TMP101_ADDR,
+ .resolution = TMP_RES_ELEVEN_BITS,
+};
+
+const struct pio button = LPC_GPIO_0_12; /* ISP button */
+const struct pio ws2812_data_out_pin = LPC_GPIO_0_2; /* Led control data pin */
+
+const struct pio cap_trig_gpio = LPC_GPIO_0_9;
+const struct pio cap_adc_gpio = LPC_GPIO_0_17;
+
+/***************************************************************************** */
+/* Temperature */
+/* The Temperature Alert pin is on GPIO Port 0, pin 7 (PIO0_7) */
+/* The I2C Temperature sensor is at address 0x94 */
+void temp_config(int uart_num)
+{
+ int ret = 0;
+
+ /* Temp sensor */
+ ret = tmp101_sensor_config(&tmp101_sensor);
+ if (ret != 0) {
+ serial_write(uart_num, "Temp config error\r\n", 19);
+ }
+}
+
+void temp_display(int uart_num)
+{
+ uint16_t raw = 0;
+ int deci_degrees = 0;
+ int len = 0;
+
+ tmp101_sensor_start_conversion(&tmp101_sensor);
+ msleep(50); /* Wait for the end of the conversion : 40ms */
+ len = tmp101_sensor_read(&tmp101_sensor, &raw, &deci_degrees);
+ if (len != 0) {
+ serial_write(uart_num, "Temp read error\r\n", 19);
+ } else {
+ uprintf(uart_num, "Temp read: %d,%d - raw: 0x%04x.\r\n",
+ (deci_degrees/10), (deci_degrees%10), raw);
+ }
+}
+
+
+/***************************************************************************** */
+void system_init()
+{
+ system_set_default_power_state();
+ clock_config(SELECTED_FREQ);
+ set_pins(common_pins);
+ gpio_on();
+ /* 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)
+{
+ uprintf(UART0, name);
+ while (1);
+}
+
+
+
+/* This mode reads values from ADC2, ADC9 and ADC10 every 150ms and uses the values to set the leds.
+ * Pixels are updated when all pixel are set from ADC input.
+ */
+void set_led_color(void)
+{
+ uint16_t red = 0, green = 0, blue = 0;
+ static uint16_t tmp = 0;
+
+ /* Get ADC values */
+ adc_get_value(&tmp, LPC_ADC_NUM(9));
+ red = tmp;
+ adc_get_value(&tmp, LPC_ADC_NUM(10));
+ blue = tmp;
+
+ /* Set pixel */
+ ws2812_set_pixel(0, (((red >> 6) & 0xFF) - 30), green, (((blue >> 6) & 0xFF) - 30));
+ ws2812_send_frame(0);
+
+ uprintf(UART0, "ADC9: %d, ADC10: %d\n", red, blue);
+}
+
+
+uint8_t message_request = 0;
+uint8_t trigger = 0;
+void trigger_message(uint32_t int_num) {
+ message_request = int_num + 1;
+}
+
+const struct lpc_timer_pwm_config pwm_conf = {
+ .nb_channels = 2,
+ .period = 30,
+ .outputs_initial_state = 0x07,
+ .match_values = { 15, 10, 15, },
+ .outputs = { 0, 1, 2, },
+};
+
+/***************************************************************************** */
+int main(void)
+{
+ system_init();
+ uart_on(UART0, 115200, NULL);
+
+ uprintf(UART0, "Sarting\n");
+ /* I2C config */
+ i2c_on(I2C0, I2C_CLK_100KHz, I2C_MASTER);
+ temp_config(UART0);
+ uprintf(UART0, "I2C config done\n");
+
+ /* ADC for potentiometer color settings */
+ config_gpio(&cap_trig_gpio, 0, GPIO_DIR_OUT, 0);
+ config_gpio(&cap_adc_gpio, 0, GPIO_DIR_OUT, 0);
+ adc_on(NULL);
+ adc_start_burst_conversion(LPC_ADC_CHANNEL(2) | LPC_ADC_CHANNEL(9) | LPC_ADC_CHANNEL(10), LPC_ADC_SEQA);
+// adc_start_burst_conversion(LPC_ADC_CHANNEL(9) | LPC_ADC_CHANNEL(10), LPC_ADC_SEQA);
+ uprintf(UART0, "ADC config done\n");
+
+ /* Led strip configuration */
+ ws2812_config(&ws2812_data_out_pin);
+ uprintf(UART0, "Led config done\n");
+
+ /* Activate the message request on Rising edge (button release) */
+ set_gpio_callback(trigger_message, &button, EDGE_RISING);
+ uprintf(UART0, "Button config done\n");
+
+ /* Timer config */
+ timer_on(LPC_SCT, (10 * 1000 * 1000), NULL);
+ timer_pwm_config(LPC_SCT, &pwm_conf);
+ uprintf(UART0, "Timer config done\n");
+
+ while (1) {
+ set_led_color();
+ msleep(250); /* Wait for the end of the conversion : 40ms */
+ temp_display(UART0);
+ if (message_request != 0) {
+ uprintf(UART0, "Button pressed: %d\n", message_request);
+ message_request = 0;
+ if (trigger == 0) {
+ /* Configure timer out and ADC in */
+ set_pins(capacitance_pins);
+ timer_start(LPC_SCT);
+ uprintf(UART0, "Timer started\n");
+ trigger = 1;
+ } else {
+ timer_stop(LPC_SCT);
+ /* Turn timer output and ADC input as inputs to discharge all the capacitances. */
+ config_gpio(&cap_trig_gpio, 0, GPIO_DIR_OUT, 0);
+ config_gpio(&cap_adc_gpio, 0, GPIO_DIR_OUT, 0);
+ uprintf(UART0, "Timer stoped\n");
+ trigger = 0;
+ }
+ }
+ }
+ return 0;
+}
+
+
+
+
