From: Nathael Pajani Date: Thu, 3 Jan 2019 21:06:45 +0000 (+0100) Subject: tigp oled display test X-Git-Url: http://git.techno-innov.fr/?p=soft%2Flpc122x%2Ftigp;a=commitdiff_plain;h=2d8b0ee23831797a1784b62161575dd5f35c3e9b tigp oled display test --- 2d8b0ee23831797a1784b62161575dd5f35c3e9b diff --git a/oled/Makefile b/oled/Makefile new file mode 100644 index 0000000..41ae555 --- /dev/null +++ b/oled/Makefile @@ -0,0 +1,21 @@ +# Makefile for apps + +MODULE = $(shell basename $(shell cd .. && pwd && cd -)) +NAME = $(shell basename $(CURDIR)) + +# Add this to your ~/.vimrc in order to get proper function of :make in vim : +# let $COMPILE_FROM_IDE = 1 +ifeq ($(strip $(COMPILE_FROM_IDE)),) + PRINT_DIRECTORY = --no-print-directory +else + PRINT_DIRECTORY = + LANG = C +endif + +.PHONY: $(NAME).bin +$(NAME).bin: + @make -C ../../.. ${PRINT_DIRECTORY} NAME=$(NAME) MODULE=$(MODULE) apps/$(MODULE)/$(NAME)/$@ + +clean mrproper: + @make -C ../../.. ${PRINT_DIRECTORY} $@ + diff --git a/oled/main.c b/oled/main.c new file mode 100644 index 0000000..cb45957 --- /dev/null +++ b/oled/main.c @@ -0,0 +1,236 @@ +/**************************************************************************** + * oled/main.c + * + * Test of Oled display on tigp board + * + * Copyright 2017 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 "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/ssp.h" + +#include "extdrv/status_led.h" +#include "extdrv/ssd130x_oled_driver.h" +#include "extdrv/ssd130x_oled_buffer.h" +#include "lib/font.h" + + +#define MODULE_VERSION 0x01 +#define MODULE_NAME "TIGP" + + +#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 : Config / Debug / USB */ + { LPC_UART0_RX_PIO_0_1, LPC_IO_DIGITAL }, + { LPC_UART0_TX_PIO_0_2, LPC_IO_DIGITAL }, + /* I2C : RTC, Temp sensor, Accelerometer */ + { 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 : Display and uSD card */ + { LPC_SSP0_SCLK_PIO_0_14, LPC_IO_DIGITAL }, + { LPC_SSP0_MISO_PIO_0_16, LPC_IO_DIGITAL }, + { LPC_SSP0_MOSI_PIO_0_17, LPC_IO_DIGITAL }, + /* Buttons */ + { LPC_GPIO_0_3, LPC_IO_DIGITAL }, /* B1 */ + { LPC_GPIO_0_4, LPC_IO_DIGITAL }, /* B2 */ + { LPC_GPIO_0_5, LPC_IO_DIGITAL }, /* B3 */ + { LPC_GPIO_0_6, LPC_IO_DIGITAL }, /* B4 */ + { LPC_GPIO_0_7, LPC_IO_DIGITAL }, /* B6 */ + { LPC_GPIO_0_8, LPC_IO_DIGITAL }, /* B7 */ + { LPC_GPIO_0_9, LPC_IO_DIGITAL }, /* B8 */ + { LPC_GPIO_0_12, LPC_IO_DIGITAL }, /* ISP / B5 */ + /* GPIO */ + { LPC_GPIO_0_0, LPC_IO_DIGITAL }, /* Clkout / interrupt from RTC */ + { LPC_GPIO_0_15, LPC_IO_DIGITAL }, /* Buzer */ + { LPC_GPIO_0_18, LPC_IO_DIGITAL }, /* WS2812B Leds */ + { LPC_GPIO_0_29, LPC_IO_DIGITAL }, /* Charging state */ + { LPC_GPIO_1_0, LPC_IO_DIGITAL }, /* SD Card Chip select */ + { LPC_GPIO_1_1, LPC_IO_DIGITAL }, /* Oled Ctrl */ + { LPC_GPIO_1_2, LPC_IO_DIGITAL }, /* Oled Chip select */ + /* Debug */ + /* FIXME : SWDIO and SWCLK on PIO0_25 and PIO0_26 */ + /* ADC */ + { LPC_ADC_AD0_PIO_0_30, LPC_IO_ANALOG }, /* ADC0 */ + { LPC_ADC_AD1_PIO_0_31, LPC_IO_ANALOG }, /* ADC1 */ + ARRAY_LAST_PIO, +}; + +const struct pio status_led_green = LPC_GPIO_0_27; +const struct pio status_led_red = LPC_GPIO_0_28; + + + +/***************************************************************************** */ +/* Basic system init and configuration */ + +void system_init() +{ + /* Stop the Watchdog */ + startup_watchdog_disable(); /* Do it right now, before it gets a chance to break in */ + 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) +{ + uprintf(UART0, name); + while (1); +} + + +/***************************************************************************** */ +/* Oled Display */ +static uint8_t gddram[ 4 + GDDRAM_SIZE ]; +struct oled_display display = { + .bus_type = SSD130x_BUS_SPI, + .bus_num = SSP_BUS_0, + .charge_pump = SSD130x_INTERNAL_PUMP, + .video_mode = SSD130x_DISP_NORMAL, + .contrast = 128, + .scan_dir = SSD130x_SCAN_BOTTOM_TOP, + .read_dir = SSD130x_RIGHT_TO_LEFT, + .display_offset_dir = SSD130x_MOVE_TOP, + .display_offset = 4, + .gddram = gddram, + .gpio_cs = LPC_GPIO_1_2, + .gpio_dc = LPC_GPIO_1_1, + .gpio_rst = LPC_GPIO_1_3, +}; + +#define ROW(x) VERTICAL_REV(x) +DECLARE_FONT(font); + +void display_char(uint8_t line, uint8_t col, uint8_t c) +{ + uint8_t tile = (c > FIRST_FONT_CHAR) ? (c - FIRST_FONT_CHAR) : 0; + uint8_t* tile_data = (uint8_t*)(&font[tile]); + ssd130x_buffer_set_tile(gddram, col, line, tile_data); +} +int display_line(uint8_t line, uint8_t col, char* text) +{ + int len = strlen((char*)text); + int i = 0; + + for (i = 0; i < len; i++) { + uint8_t tile = (text[i] > FIRST_FONT_CHAR) ? (text[i] - FIRST_FONT_CHAR) : 0; + uint8_t* tile_data = (uint8_t*)(&font[tile]); + ssd130x_buffer_set_tile(gddram, col++, line, tile_data); + if (col >= (SSD130x_NB_COL / 8)) { + col = 0; + line++; + if (line >= SSD130x_NB_PAGES) { + return i; + } + } + } + return len; +} + +/***************************************************************************** */ +/* Communication over USB */ +uint8_t text_received = 0; +#define NB_CHARS 15 +char inbuff[NB_CHARS + 1]; +void data_rx(uint8_t c) +{ + static int idx = 0; + if ((c != 0) && (c != '\n') && (c != '\r')) { + inbuff[idx++] = c; + if (idx >= NB_CHARS) { + inbuff[NB_CHARS] = 0; + idx = 0; + text_received = 1; + } + } else { + if (idx != 0) { + inbuff[idx] = 0; + text_received = 1; + } + idx = 0; + } +} + + +const struct pio sd_cs = LPC_GPIO_1_0; +/***************************************************************************** */ +int main(void) +{ + int ret = 0; + system_init(); + + uart_on(UART0, 115200, data_rx); + ssp_master_on(SSP_BUS_0, LPC_SSP_FRAME_SPI, 8, 4*1000*1000); + + status_led(green_only); + + config_gpio(&sd_cs, 0, GPIO_DIR_OUT, 1); + + /* Configure and start display */ + ret = ssd130x_display_on(&display); + uprintf(UART0, "display on : %d\n", ret); + /* Erase screen with lines, makes it easier to know things are going right */ + ssd130x_buffer_set(gddram, 0x10); + ret = ssd130x_display_full_screen(&display); + uprintf(UART0, "full screen : %d\n", ret); + + while (1) { + chenillard(500); + if (text_received != 0) { + display_line(2, 1, inbuff); + ret = ssd130x_display_full_screen(&display); + if (ret != 0) { + uprintf(UART0, "Display update error: %d\n", ret); + } else { + uprintf(UART0, "Display updated.\n"); + } + text_received = 0; + } + } + return 0; +} + + +