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begin new ttgo eink board
This commit is contained in:
Kevin Hester
parent
047df76373
commit
51d0d0d6c5
61
boards/eink.json
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61
boards/eink.json
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@ -0,0 +1,61 @@
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{
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"build": {
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"arduino": {
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"ldscript": "nrf52840_s140_v6.ld"
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},
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"core": "nRF5",
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"cpu": "cortex-m4",
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"extra_flags": "-DARDUINO_NRF52840_TTGO_EINK -DNRF52840_XXAA",
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"f_cpu": "64000000L",
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"hwids": [
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[
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"0x239A",
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"0x4405"
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]
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],
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"usb_product": "TTGO_eink",
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"mcu": "nrf52840",
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"variant": "eink",
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"variants_dir": "variants",
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"bsp": {
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"name": "adafruit"
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},
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"softdevice": {
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"sd_flags": "-DS140",
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"sd_name": "s140",
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"sd_version": "6.1.1",
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"sd_fwid": "0x00B6"
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},
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"bootloader": {
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"settings_addr": "0xFF000"
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}
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},
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"connectivity": [
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"bluetooth"
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],
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"debug": {
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"jlink_device": "nRF52840_xxAA",
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"onboard_tools": [
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"jlink"
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],
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"svd_path": "nrf52840.svd"
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},
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"frameworks": [
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"arduino"
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],
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"name": "TTGO eink (Adafruit BSP)",
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"upload": {
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"maximum_ram_size": 248832,
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"maximum_size": 815104,
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"require_upload_port": true,
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"speed": 115200,
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"protocol": "jlink",
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"protocols": [
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"jlink",
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"nrfjprog",
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"stlink"
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]
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},
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"url": "FIXME",
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"vendor": "TTGO"
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}
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@ -9,7 +9,7 @@
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; https://docs.platformio.org/page/projectconf.html
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[platformio]
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default_envs = eink0.1 # lora-relay-v1 # nrf52840dk-geeksville # linux # or if you'd like to change the default to something like lora-relay-v1 put that here
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default_envs = eink # lora-relay-v1 # nrf52840dk-geeksville # linux # or if you'd like to change the default to something like lora-relay-v1 put that here
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;default_envs = heltec # lora-relay-v1 # nrf52840dk-geeksville # linux # or if you'd like to change the default to something like lora-relay-v1 put that here
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[common]
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@ -247,6 +247,20 @@ src_filter = ${nrf52_base.src_filter} +<../variants/ppr1>
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lib_deps =
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${arduino_base.lib_deps}
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; First prototype eink/nrf52840/sx1262 device
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[env:eink]
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extends = nrf52_base
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board = eink
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# add our variants files to the include and src paths
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# define build flags for the TFT_eSPI library
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build_flags = ${nrf52_base.build_flags} -Ivariants/eink
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-DBUSY_PIN=3 -DRST_PIN=2 -DDC_PIN=28 -DCS_PIN=30
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src_filter = ${nrf52_base.src_filter} +<../variants/eink>
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lib_deps =
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${arduino_base.lib_deps}
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https://github.com/geeksville/EPD_Libraries.git
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TFT_eSPI
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; First prototype eink/nrf52840/sx1262 device
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[env:eink0.1]
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extends = nrf52_base
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44
variants/eink/variant.cpp
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44
variants/eink/variant.cpp
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/*
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Copyright (c) 2014-2015 Arduino LLC. All right reserved.
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Copyright (c) 2016 Sandeep Mistry All right reserved.
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Copyright (c) 2018, Adafruit Industries (adafruit.com)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "variant.h"
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#include "nrf.h"
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#include "wiring_constants.h"
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#include "wiring_digital.h"
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const uint32_t g_ADigitalPinMap[] = {
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// P0 - pins 0 and 1 are hardwired for xtal and should never be enabled
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0xff, 0xff, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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// P1
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
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void initVariant()
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{
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// LED1 & LED2
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pinMode(PIN_LED1, OUTPUT);
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ledOff(PIN_LED1);
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pinMode(PIN_LED2, OUTPUT);
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ledOff(PIN_LED2);
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pinMode(PIN_LED3, OUTPUT);
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ledOff(PIN_LED3);
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}
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256
variants/eink/variant.h
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256
variants/eink/variant.h
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@ -0,0 +1,256 @@
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/*
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Copyright (c) 2014-2015 Arduino LLC. All right reserved.
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Copyright (c) 2016 Sandeep Mistry All right reserved.
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Copyright (c) 2018, Adafruit Industries (adafruit.com)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _VARIANT_TTGO_EINK_V1_
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#define _VARIANT_TTGO_EINK_V1_
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/** Master clock frequency */
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#define VARIANT_MCK (64000000ul)
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#define USE_LFXO // Board uses 32khz crystal for LF
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/*
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@geeksville eink TODO:
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soonish:
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DONE hook cdc acm device to debug output
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DONE fix bootloader to use two buttons - remove bootloader hacks
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DONE get second button working in app load
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DONE use tp_ser_io as a button, it goes high when pressed unify eink display classes
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fix display width and height
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clean up eink drawing to not have the nasty timeout hack
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measure current draws
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DONE put eink to sleep when we think the screen is off
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enable gps sleep mode
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turn off txco on lora?
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make screen.adjustBrightness() a nop on eink screens
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later:
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enable flash on qspi.
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fix floating point SEGGER printf on nrf52 - see "new NMEA GPS pos"
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add factory/power on self test
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feedback to give:
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* bootloader is finished
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* the capacitive touch sensor works, though I'm not sure what use you are intending for it
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* remove ipx connector for nfc, instead use two caps and loop traces on the back of the board as an antenna?
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* the i2c RTC seems to talk fine on the i2c bus. However, I'm not sure of the utility of that part. Instead I'd be in favor of
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the following:
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* move BAT1 to power the GPS VBACKUP instead per page 6 of the Air530 datasheet. And remove the i2c RTC entirely.
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* remove the cp2014 chip.
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* I've made the serial flash chip work, but if you do a new spin of the board I recommend:
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connect pin 3 and pin 7 of U4 to spare GPIOs on the processor (instead of their current connections),
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This would allow using 4 bit wide interface mode to the serial flash - doubling the transfer speed! see example here:
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https://infocenter.nordicsemi.com/topic/ug_nrf52840_dk/UG/nrf52840_DK/hw_external_memory.html?cp=4_0_4_7_4
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Once again - I'm glad you added that external flash chip.
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* Power measurements
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When powered by 4V battery
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CPU on, lora radio RX mode, bluetooth enabled, GPS trying to lock. total draw 43mA
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CPU on, lora radio RX mode, bluetooth enabled, GPS super low power sleep mode. Total draw 20mA
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CPU on, lora radio TX mode, bluetooth enabled, GPS super low power sleep mode. Total draw 132mA
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Note: power consumption while connected via BLE to a phone almost identical.
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Note: eink display for all tests was in sleep mode most of the time. Current draw during the brief periods while the eink was being drawn was not
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measured (but it was low).
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Note: Turning off EINK PWR_ON produces no noticeable power savings over just putting the eink display into sleep mode.
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*/
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/*----------------------------------------------------------------------------
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* Headers
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*----------------------------------------------------------------------------*/
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#include "WVariant.h"
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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// Number of pins defined in PinDescription array
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#define PINS_COUNT (48)
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#define NUM_DIGITAL_PINS (48)
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#define NUM_ANALOG_INPUTS (1)
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#define NUM_ANALOG_OUTPUTS (0)
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// LEDs
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#define PIN_LED1 (0 + 13) // green (but red on my prototype)
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#define PIN_LED2 (0 + 15) // blue (but red on my prototype)
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#define PIN_LED3 (0 + 14) // red (not functional on my prototype)
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#define LED_RED PIN_LED3
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#define LED_GREEN PIN_LED1
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#define LED_BLUE PIN_LED2
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#define LED_BUILTIN LED_GREEN
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#define LED_CONN PIN_BLUE
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#define LED_STATE_ON 0 // State when LED is lit
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#define LED_INVERTED 1
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/*
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* Buttons
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*/
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#define PIN_BUTTON1 (32 + 10)
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#define PIN_BUTTON2 (0 + 18) // 0.18 is labeled on the board as RESET but we configure it in the bootloader as a regular GPIO
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/*
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* Analog pins
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*/
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#define PIN_A0 (4) // Battery ADC
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#define BATTERY_PIN PIN_A0
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static const uint8_t A0 = PIN_A0;
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#define ADC_RESOLUTION 14
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#define PIN_NFC1 (9)
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#define PIN_NFC2 (10)
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/*
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* Serial interfaces
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*/
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/*
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No longer populated on PCB
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*/
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//#define PIN_SERIAL2_RX (0 + 6)
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//#define PIN_SERIAL2_TX (0 + 8)
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// #define PIN_SERIAL2_EN (0 + 17)
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/**
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Wire Interfaces
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*/
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#define WIRE_INTERFACES_COUNT 1
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#define PIN_WIRE_SDA (26) // Not connected on board?
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#define PIN_WIRE_SCL (27)
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/* touch sensor, active high */
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#define TP_SER_IO (0 + 11)
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#define PIN_RTC_INT (0 + 16) // Interrupt from the PCF8563 RTC
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/*
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External serial flash WP25R1635FZUIL0
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*/
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// QSPI Pins
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#define PIN_QSPI_SCK (32 + 14)
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#define PIN_QSPI_CS (32 + 15)
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#define PIN_QSPI_IO0 (32 + 12) // MOSI if using two bit interface
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#define PIN_QSPI_IO1 (32 + 13) // MISO if using two bit interface
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//#define PIN_QSPI_IO2 22 // WP if using two bit interface (i.e. not used)
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//#define PIN_QSPI_IO3 23 // HOLD if using two bit interface (i.e. not used)
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// On-board QSPI Flash
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#define EXTERNAL_FLASH_DEVICES MX25R1635F
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#define EXTERNAL_FLASH_USE_QSPI
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/*
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* Lora radio
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*/
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#define SX1262_CS (0 + 24) // FIXME - we really should define LORA_CS instead
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#define SX1262_DIO1 (0 + 20)
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// Note DIO2 is attached internally to the module to an analog switch for TX/RX switching
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#define SX1262_DIO3 \
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(0 + 21) // This is used as an *output* from the sx1262 and connected internally to power the tcxo, do not drive from the main
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// CPU?
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#define SX1262_BUSY (0 + 17)
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#define SX1262_RESET (0 + 25)
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#define SX1262_E22 // Not really an E22 but TTGO seems to be trying to clone that
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// Internally the TTGO module hooks the SX1262-DIO2 in to control the TX/RX switch (which is the default for the sx1262interface
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// code)
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// #define LORA_DISABLE_SENDING // Define this to disable transmission for testing (power testing etc...)
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/*
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* eink display pins
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*/
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#define PIN_EINK_EN (32 + 11)
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#define PIN_EINK_CS (0 + 30)
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#define PIN_EINK_BUSY (0 + 3)
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#define PIN_EINK_DC (0 + 28)
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#define PIN_EINK_RES (0 + 2)
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#define PIN_EINK_SCLK (0 + 31)
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#define PIN_EINK_MOSI (0 + 29) // also called SDI
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// Controls power for the eink display - Board power is enabled either by VBUS from USB or the CPU asserting PWR_ON
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// FIXME - I think this is actually just the board power enable - it enables power to the CPU also
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#define PIN_EINK_PWR_ON (0 + 12)
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#define HAS_EINK
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// No screen wipes on eink
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#define SCREEN_TRANSITION_MSECS 0
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#define PIN_SPI1_MISO \
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(32 + 7) // FIXME not really needed, but for now the SPI code requires something to be defined, pick an used GPIO
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#define PIN_SPI1_MOSI PIN_EINK_MOSI
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#define PIN_SPI1_SCK PIN_EINK_SCLK
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/*
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* Air530 GPS pins
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*/
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#define PIN_GPS_WAKE (32 + 2) // An output to wake GPS, low means allow sleep, high means force wake
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#define PIN_GPS_PPS (32 + 4) // Pulse per second input from the GPS
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#define PIN_GPS_TX (32 + 9) // This is for bits going TOWARDS the CPU
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#define PIN_GPS_RX (32 + 8) // This is for bits going TOWARDS the GPS
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#define HAS_AIR530_GPS
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#define PIN_SERIAL1_RX PIN_GPS_TX
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#define PIN_SERIAL1_TX PIN_GPS_RX
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/*
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* SPI Interfaces
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*/
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#define SPI_INTERFACES_COUNT 2
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// For LORA, spi 0
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#define PIN_SPI_MISO (0 + 23)
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#define PIN_SPI_MOSI (0 + 22)
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#define PIN_SPI_SCK (0 + 19)
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// To debug via the segger JLINK console rather than the CDC-ACM serial device
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// #define USE_SEGGER
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#ifdef __cplusplus
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}
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#endif
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/*----------------------------------------------------------------------------
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* Arduino objects - C++ only
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*----------------------------------------------------------------------------*/
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#endif
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