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NRF52840DK.py
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NRF52840DK.py
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#!/bin/false
# This file is part of Espruino, a JavaScript interpreter for Microcontrollers
#
# Copyright (C) 2013 Gordon Williams <gw@pur3.co.uk>
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# ----------------------------------------------------------------------------------------
# This file contains information for a specific board - the available pins, and where LEDs,
# Buttons, and other in-built peripherals are. It is used to build documentation as well
# as various source and header files for Espruino.
# ----------------------------------------------------------------------------------------
import pinutils;
info = {
'name' : "nRF52840 Development Kit",
'link' : [ "https://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF52-DK" ],
'espruino_page_link' : 'nRF52840DK',
# This is the PCA10036
'default_console' : "EV_SERIAL1",
'default_console_tx' : "D6",
'default_console_rx' : "D8",
'default_console_baudrate' : "9600",
'variables' : 12500, # How many variables are allocated for Espruino to use. RAM will be overflowed if this number is too high and code won't compile.
# 'bootloader' : 1,
'binary_name' : 'espruino_%v_nrf52840.hex',
'build' : {
'optimizeflags' : '-Os',
'libraries' : [
'BLUETOOTH',
'NET',
'GRAPHICS',
# 'NFC',
'NEOPIXEL',
'JIT' # JIT compiler enabled
],
'makefile' : [
'DEFINES += -DCONFIG_GPIO_AS_PINRESET', # Allow the reset pin to work
'DEFINES += -DBOARD_PCA10056',
'DEFINES += -DNRF_USB=1 -DUSB',
'DEFINES += -DNEOPIXEL_SCK_PIN=22 -DNEOPIXEL_LRCK_PIN=23', # nRF52840 needs LRCK pin defined for neopixel
'DEFINES += -DNRF_SDH_BLE_GATT_MAX_MTU_SIZE=131', # 23+x*27 rule as per https://devzone.nordicsemi.com/f/nordic-q-a/44825/ios-mtu-size-why-only-185-bytes
'DEFINES += -DCENTRAL_LINK_COUNT=2 -DNRF_SDH_BLE_CENTRAL_LINK_COUNT=2', # allow two outgoing connections at once
'LDFLAGS += -Xlinker --defsym=LD_APP_RAM_BASE=0x3660', # set RAM base to match MTU=131 + CENTRAL_LINK_COUNT=2
# 'ESPR_BLUETOOTH_ANCS=1', # Enable ANCS (Apple notifications) support
'DFU_SETTINGS=--application-version 0xff --hw-version 52 --sd-req 0xa9,0xae,0xb6',
'DFU_PRIVATE_KEY=targets/nrf5x_dfu/dfu_private_key.pem',
'DEFINES += -DNRF_BOOTLOADER_NO_WRITE_PROTECT=1', # By default the bootloader protects flash. Avoid this (a patch for NRF_BOOTLOADER_NO_WRITE_PROTECT must be applied first)
# 'DEFINES += -DBUTTONPRESS_TO_REBOOT_BOOTLOADER', # enables watchdog timer
'BOOTLOADER_SETTINGS_FAMILY=NRF52840',
'NRF_SDK15=1',
]
}
};
chip = {
'part' : "NRF52840",
'family' : "NRF52",
'package' : "AQFN73",
'ram' : 256,
'flash' : 1024,
'speed' : 64,
'usart' : 2,
'spi' : 3,
'i2c' : 2,
'adc' : 1,
'dac' : 0,
'saved_code' : {
'address' : ((246 - 10) * 4096), # Bootloader takes pages 248-255, FS takes 246-247
'page_size' : 4096,
'pages' : 10,
'flash_available' : 1024 - ((31 + 8 + 2 + 10)*4) # Softdevice uses 31 pages of flash, bootloader 8, FS 2, code 10. Each page is 4 kb.
},
};
devices = {
'BTN1' : { 'pin' : 'D11', 'pinstate' : 'IN_PULLDOWN' }, # Pin negated in software
'BTN2' : { 'pin' : 'D12', 'pinstate' : 'IN_PULLDOWN' }, # Pin negated in software
'BTN3' : { 'pin' : 'D24', 'pinstate' : 'IN_PULLDOWN' }, # Pin negated in software
'BTN4' : { 'pin' : 'D25', 'pinstate' : 'IN_PULLDOWN' }, # Pin negated in software
'LED1' : { 'pin' : 'D13' }, # Pin negated in software
'LED2' : { 'pin' : 'D14' }, # Pin negated in software
'LED3' : { 'pin' : 'D15' }, # Pin negated in software
'LED4' : { 'pin' : 'D16' }, # Pin negated in software
'RX_PIN_NUMBER' : { 'pin' : 'D8'},
'TX_PIN_NUMBER' : { 'pin' : 'D6'},
'CTS_PIN_NUMBER' : { 'pin' : 'D7'},
'RTS_PIN_NUMBER' : { 'pin' : 'D5'},
# Pin D22 is used for clock when driving neopixels - as not specifying a pin seems to break things
};
# left-right, or top-bottom order
board = {
'left' : [ 'VDD', 'VDD', 'RESET', 'VDD','5V','GND','GND','','','D3','D4','D28','D29','D30','D31'],
'right' : [
'D27', 'D26', 'D2', 'GND', 'D25','D24','D23', 'D22','D20','D19','',
'D18','D17','D16','D15','D14','D13','D12','D11','',
'D10','D9','D8','D7','D6','D5','D21','D1','D0'],
'_notes' : {
'D6' : "Serial console RX",
'D8' : "Serial console TX"
}
};
board["_css"] = """
#board {
width: 528px;
height: 800px;
top: 0px;
left : 200px;
background-image: url(img/NRF528DK.jpg);
}
#boardcontainer {
height: 900px;
}
#left {
top: 219px;
right: 466px;
}
#right {
top: 150px;
left: 466px;
}
.leftpin { height: 17px; }
.rightpin { height: 17px; }
""";
def get_pins():
pins = pinutils.generate_pins(0,47) # 48 General Purpose I/O Pins.
pinutils.findpin(pins, "PD0", True)["functions"]["XL1"]=0;
pinutils.findpin(pins, "PD1", True)["functions"]["XL2"]=0;
pinutils.findpin(pins, "PD5", True)["functions"]["RTS"]=0;
pinutils.findpin(pins, "PD6", True)["functions"]["TXD"]=0;
pinutils.findpin(pins, "PD7", True)["functions"]["CTS"]=0;
pinutils.findpin(pins, "PD8", True)["functions"]["RXD"]=0;
pinutils.findpin(pins, "PD9", True)["functions"]["NFC1"]=0;
pinutils.findpin(pins, "PD10", True)["functions"]["NFC2"]=0;
pinutils.findpin(pins, "PD2", True)["functions"]["ADC1_IN0"]=0;
pinutils.findpin(pins, "PD3", True)["functions"]["ADC1_IN1"]=0;
pinutils.findpin(pins, "PD4", True)["functions"]["ADC1_IN2"]=0;
pinutils.findpin(pins, "PD5", True)["functions"]["ADC1_IN3"]=0;
pinutils.findpin(pins, "PD28", True)["functions"]["ADC1_IN4"]=0;
pinutils.findpin(pins, "PD29", True)["functions"]["ADC1_IN5"]=0;
pinutils.findpin(pins, "PD30", True)["functions"]["ADC1_IN6"]=0;
pinutils.findpin(pins, "PD31", True)["functions"]["ADC1_IN7"]=0;
# Make buttons and LEDs negated
pinutils.findpin(pins, "PD13", True)["functions"]["NEGATED"]=0;
pinutils.findpin(pins, "PD14", True)["functions"]["NEGATED"]=0;
pinutils.findpin(pins, "PD15", True)["functions"]["NEGATED"]=0;
pinutils.findpin(pins, "PD16", True)["functions"]["NEGATED"]=0;
pinutils.findpin(pins, "PD11", True)["functions"]["NEGATED"]=0;
pinutils.findpin(pins, "PD12", True)["functions"]["NEGATED"]=0;
pinutils.findpin(pins, "PD24", True)["functions"]["NEGATED"]=0;
pinutils.findpin(pins, "PD25", True)["functions"]["NEGATED"]=0;
# everything is non-5v tolerant
for pin in pins:
pin["functions"]["3.3"]=0;
#The boot/reset button will function as a reset button in normal operation. Pin reset on PD21 needs to be enabled on the nRF52832 device for this to work.
return pins