From 981f0f52acf881ad5c1a28c30604958639d2b519 Mon Sep 17 00:00:00 2001 From: Nathael Pajani Date: Fri, 3 Jun 2016 01:54:59 +0200 Subject: [PATCH] Lighthouse board, production test app --- lighthouse/Makefile | 13 ++ lighthouse/README | 21 +++ lighthouse/main.c | 318 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 352 insertions(+) create mode 100644 lighthouse/Makefile create mode 100644 lighthouse/README create mode 100644 lighthouse/main.c diff --git a/lighthouse/Makefile b/lighthouse/Makefile new file mode 100644 index 0000000..954c63f --- /dev/null +++ b/lighthouse/Makefile @@ -0,0 +1,13 @@ +# Makefile for "base" apps +# This includes apps for the GPIO Demo Module and for the LPC1224-BO board. + +MODULE = $(shell basename $(shell cd .. && pwd && cd -)) +NAME = $(shell basename $(CURDIR)) + +.PHONY: $(NAME).bin +$(NAME).bin: + @make -C ../../.. --no-print-directory NAME=$(NAME) MODULE=$(MODULE) apps/$(MODULE)/$(NAME)/$@ + +clean mrproper: + @make -C ../../.. --no-print-directory $@ + diff --git a/lighthouse/README b/lighthouse/README new file mode 100644 index 0000000..a495039 --- /dev/null +++ b/lighthouse/README @@ -0,0 +1,21 @@ +Lighthouse test program + +Copyright 2016 Nathael Pajani + + +/* **************************************************************************** + * 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 . + * + *************************************************************************** */ + diff --git a/lighthouse/main.c b/lighthouse/main.c new file mode 100644 index 0000000..056aded --- /dev/null +++ b/lighthouse/main.c @@ -0,0 +1,318 @@ +/**************************************************************************** + * lighthouse/main.c + * + * LightHouse example program + * + * Copyright 2016 Nathael Pajani + * + * + * 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 . + * + *************************************************************************** */ + + +#include +#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 "drivers/ssp.h" +#include "drivers/i2c.h" +#include "extdrv/cc1101.h" +#include "extdrv/status_led.h" +#include "extdrv/ws2812.h" + + +#define MODULE_VERSION 0x03 +#define MODULE_NAME "LightHouse" + + +#define RF_868MHz 1 +#define RF_915MHz 0 +#if ((RF_868MHz) + (RF_915MHz) != 1) +#error Either RF_868MHz or RF_915MHz MUST be defined. +#endif + + +#define DEBUG 1 +#define BUFF_LEN 60 + +#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 }, + /* I2C 0 */ + { LPC_I2C0_SCL_PIO_0_10, (LPC_IO_DIGITAL | LPC_IO_OPEN_DRAIN_ENABLE) }, + { LPC_I2C0_SDA_PIO_0_11, (LPC_IO_DIGITAL | LPC_IO_OPEN_DRAIN_ENABLE) }, + /* 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 }, + /* GPIO */ + { LPC_GPIO_0_30, (LPC_IO_MODE_PULL_UP | 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 cc1101_gdo0 = LPC_GPIO_0_6; +const struct pio cc1101_gdo2 = LPC_GPIO_0_7; + +const struct pio button = LPC_GPIO_0_12; /* ISP button */ +const struct pio ws2812_data_out_pin = LPC_GPIO_0_30; /* Led control data pin */ + +const struct pio status_led_green = LPC_GPIO_1_1; +const struct pio status_led_red = LPC_GPIO_1_2; + + +#define ADC_EXT1 LPC_ADC_NUM(1) +#define ADC_EXT2 LPC_ADC_NUM(2) + +/***************************************************************************** */ +void system_init() +{ + /* Stop the watchdog */ + startup_watchdog_disable(); /* 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(); + /* 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(0, name, len); + /* Wait for end of Tx */ + serial_flush(0); + /* FIXME : Perform soft reset of the micro-controller ! */ + while (1); +} + + + +/******************************************************************************/ +/* RF Communication */ +#define RF_BUFF_LEN 64 +#define RF_BROADCAST 0 + +static volatile int check_rx = 0; +void rf_rx_calback(uint32_t gpio) +{ + check_rx = 1; +} + +static uint8_t rf_specific_settings[] = { + CC1101_REGS(gdo_config[2]), 0x07, /* GDO_0 - Assert on CRC OK | Disable temp sensor */ + CC1101_REGS(gdo_config[0]), 0x2E, /* GDO_2 - FIXME : do something usefull with it for tests */ + CC1101_REGS(pkt_ctrl[0]), 0x0F, /* Accept all sync, CRC err auto flush, Append, Addr check and Bcast */ + CC1101_REGS(radio_stm[1]), 0x3F, /* CCA mode "if RSSI below threshold", Stay in RX, Go to RX (page 81) */ + CC1101_REGS(agc_ctrl[1]), 0x20, /* LNA 2 gain decr first, Carrier sense relative threshold set to 10dB increase in RSSI value */ +#if (RF_915MHz == 1) + /* FIXME : Add here a define protected list of settings for 915MHz configuration */ +#endif +}; + +/* RF config */ +void rf_config(void) +{ + config_gpio(&cc1101_gdo0, LPC_IO_MODE_PULL_UP, GPIO_DIR_IN, 0); + cc1101_init(0, &cc1101_cs_pin, &cc1101_miso_pin); /* ssp_num, cs_pin, miso_pin */ + /* Set default config */ + cc1101_config(); + /* And change application specific settings */ + cc1101_update_config(rf_specific_settings, sizeof(rf_specific_settings)); + set_gpio_callback(rf_rx_calback, &cc1101_gdo0, EDGE_RISING); + +#ifdef DEBUG + uprintf(0, "CC1101 RF link init done.\r\n"); +#endif +} + +void send_uint16_on_RF(uint8_t addr, uint8_t type, uint16_t val) +{ + uint8_t cc_tx_data[RF_BUFF_LEN + 2]; + cc_tx_data[0] = 4; + cc_tx_data[1] = addr; + cc_tx_data[2] = type; + cc_tx_data[3] = ((val >> 8) & 0xff); + cc_tx_data[4] = (val & 0xff); + if (cc1101_tx_fifo_state() != 0) { + cc1101_flush_tx_fifo(); + } + cc1101_send_packet(cc_tx_data, 5); +} +void send_error_on_rf(uint8_t addr, uint8_t err_code) +{ + uint8_t cc_tx_data[RF_BUFF_LEN + 2]; + cc_tx_data[0] = 3; + cc_tx_data[1] = addr; + cc_tx_data[2] = 'E'; + cc_tx_data[3] = err_code; + if (cc1101_tx_fifo_state() != 0) { + cc1101_flush_tx_fifo(); + } + cc1101_send_packet(cc_tx_data, 4); +} + +void handle_rf_rx_data(void) +{ + uint8_t data[RF_BUFF_LEN]; + int8_t ret = 0; + uint8_t status = 0; + static int led = 0; + + /* Check for received packet (and get it if any) */ + ret = cc1101_receive_packet(data, RF_BUFF_LEN, &status); + /* Go back to RX mode */ + cc1101_enter_rx_mode(); + + data[2] = ((data[2] - '0') * 20); + data[3] = ((data[3] - '0') * 20); + data[4] = ((data[4] - '0') * 20); +#ifdef DEBUG + uprintf(0, "RF: ret:%d, st: %d.\n", ret, status); + uprintf(0, "Color(%d) : %d,%d,%d.\n", led, data[2], data[3], data[4]); +#endif + + ws2812_set_pixel(led++, data[2], data[3], data[4]); + if (led > 4) { + led = 0; + } + msleep(5); + ws2812_send_frame(0); +} + + +/* 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. */ +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 handle_uart_cmd(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; + } +} + +void send_uart_to_rf(void) +{ + uint8_t cc_tx_data[RF_BUFF_LEN + 2]; + uint8_t tx_len = cc_ptr; + 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] = RF_BROADCAST; /* Broadcast */ + /* Send */ + if (cc1101_tx_fifo_state() != 0) { + cc1101_flush_tx_fifo(); + } + ret = cc1101_send_packet(cc_tx_data, (tx_len + 2)); + +#ifdef DEBUG + uprintf(0, "Tx ret: %d\r\n", ret); +#endif +} + + +/***************************************************************************** */ +int main(void) { + system_init(); + uart_on(0, 115200, handle_uart_cmd); + ssp_master_on(0, LPC_SSP_FRAME_SPI, 8, 4*1000*1000); /* bus_num, frame_type, data_width, rate */ + status_led_config(&status_led_green, &status_led_red); + + /* Radio */ + rf_config(); + + /* Led strip configuration */ + ws2812_config(&ws2812_data_out_pin); + + ws2812_clear(); + + while (1) { + uint8_t status = 0; + + status_led(none); + + chenillard(25); + /* RF */ + if (cc_tx == 1) { + send_uart_to_rf(); + cc_tx = 0; + } + /* Do not leave radio in an unknown or unwated state */ + do { + status = (cc1101_read_status() & CC1101_STATE_MASK); + } while (status == CC1101_STATE_TX); + + if (status != CC1101_STATE_RX) { + static uint8_t loop = 0; + loop++; + if (loop > 10) { + if (cc1101_rx_fifo_state() != 0) { + cc1101_flush_rx_fifo(); + } + cc1101_enter_rx_mode(); + loop = 0; + } + } + if (check_rx == 1) { + check_rx = 0; + handle_rf_rx_data(); + } + } + return 0; +} + + + + -- 2.43.0