Commit graph

19 commits

Author SHA1 Message Date
Earle F. Philhower, III
76e7cca821
Add contributing docs (#1183) 2023-02-13 14:54:52 -08:00
Earle F. Philhower, III
da26016edf
DMA-based ADC input (microphone, analog sensor) (#1101)
Mimics the I2S/PWMAudio/Stream interface for ease of use.

* Fix non-32b DMA size transfer calculation in ABM
* Rename wasHolding to isHolding in the I2S/PWM
  It is the **current** number of bits left, not the past number.
* Add commented microphone example
* Add docs
2023-01-05 16:00:34 -08:00
Earle F. Philhower, III
1228251bc3
Add stereo support, docs for PWM playback (#1084)
Limited to consecutive pins (i.e. GPIOs on the same PWM slice).
"For free" with PWM since no add'l DMA, buffers, or IRQs are needed.
2023-01-01 11:27:49 -08:00
Earle F. Philhower, III
fca7fb5e0f
Add USB drive mode to TinyUSB, SingleFileDisk (#1034)
SingleFileDisk allows for exporting a file from the onboard LittleFS
filesystem to a PC through an emulated FAT drive when connected.  The
PC can open and copy the file, as well as delete it, but the PC has no
access to the main onboard LittleFS and no actual on-flash FAT
structures are used.

This is handy for things like data loggers.  They can run connected to
USB power for some time, and then connected to a PC to dowmload the CSV
log recorded.

It's almost 2023, allow LFN (long file names) on the emulated USB disk.

Reduce the disk buffer size to 64 bytes.  The buffer is statically
allocated so it's always present, even in non-USB disk mode, meaning
all apps will pay the RAM price for it.  64 bytes is slower to read
but works and saves ~1/2KB of heap for all apps.
2022-12-09 13:59:23 -08:00
Earle F. Philhower, III
0d15723444
Add HTTPClient, ported from the ESP8266 (#784)
Remove the need to have a separate WiFiClient that's destroyed after
the HTTPClient.  Let the object handle its own client, and pass through
any SSL requests.

Also supports the original ::begin methods which need a
WiFiClient(Secure) to be passed in and managed by the app.
2022-08-21 12:49:06 -07:00
Earle F. Philhower, III
da86a8942b
Add OTA update support (#711)
Adds a 12K OTA stub 3rd stage bootloader, which reads new firmware
from the LittleFS filesystem and flashes on reboot.

By storing the OTA commands in a file in flash, it is possible to
recover from a power failure during OTA programming.  On power
resume, the OTA block will simply re-program from the beginning.

Support cryptographic signed OTA updates, if desired.  Includes
host-side signing logic via openssl.

Add PicoOTA library which encapsulates the file format for
the updater, including CRC32 checking.

Add LEAmDNS support to allow Arduino IDE discovery

Add ArduinoOTA class for IDE uploads

Add MD5Builder class

Add Updater class which supports writing and validating
cryptographically signed binaries from any source (http,
Ethernet, WiFi, Serial, etc.)

Add documentation and readmes.
2022-08-12 00:26:51 -07:00
Earle F. Philhower, III
c3a580ee89
Add WiFiClientSecure and WifiServerSecure (TLS) support, NTP (#683)
* Add TLS (https) support
* Add NTP server
* Clean up include path, add BearSSL headers
* Allow 2 NTP servers, add ESP8266 compat define
* Add MFLN SSL example, free/used/total heap getters
* Enable stack thunking
* Add tested SSL examples
* Add BSSL_validation demo
* Add Client Certificate example
* Add RP2040 helper docs
* Clean up doc errors, missing doc version info
* Add WiFiClientSecure documentation
* Add NTP docs

Fixes #679
2022-07-18 20:24:11 -07:00
Earle F. Philhower, III
abf2c586c7
Add Pico W WiFi support (#670)
* Add support for the WiFi chip on the Pico W board.
* USB interrupt now no longer hard coded (conflicted with the WiFi IRQ).
* Add in Pico W board to makeboards.py
* Add in GPIO and variant support
* Initialize WiFi in the Variant
* Use manual LWIP, fix size accounting
* Remove the SDK WiFi overrides
* Pulling in work done in the ESP8266 core.
* Make IPAddress support IPv6
* Build LWIP with IPv4 and IPv6 support
* Use proper MAC
* Avoid cyw_warn crash.  Make macro to a comment while building
* Add WiFiServer
* Add WiFiUdp
* Move LWIP-specific support files to LWIP_Ethernet
* Add WiFi::ping (ICMP ping)
* Move ICMP echo (ping) to LWIPIntfDev
* Move hostByName to LwipIntfDev
* Add AP mode with simple DHCP server
* Add some examples and basic ESP8266 compat hacks
* Update Adafruit TinyUSB to fix crash
* Set DHCP hostname
* Make Wifi.begin() return CONNECTED with link + IP
* Return connected() on WiFi::begin
* Fix spurious TCP retransmission
* Protect LWIP from reentrancy

The Pico SDK calls "sys_check_timeouts() from inside a periodic interrupt.
This appears unsafe, as the interrupt could happen while already in the
(non-reentrant) LWIP code.

Block the interrupt from calling sys_check_timeouts by using a global flag
manually set via an RAII recursive lock.

Add interrupt protection macros around critical sections inside LWIP via
the standard defines.

These two changes should make LWIP significantly more stable and long
running.

* Support disconnecting and reconnecting WiFi
* Add WiFiServer simple example
* Update documentation

Fixes #666
Fixed #665
2022-07-15 16:47:53 -07:00
Earle F. Philhower, III
af7f430227
Change the RTD theme (#554)
Alabaster is not my favorite, try something with colors...
2022-04-25 18:03:07 -07:00
Earle F. Philhower, III
bda630e419
Add FreeRTOS support thanks to @hfellner (#533)
Using all the work from @hfellner and others, add FreeRTOS
SMP support.

Allow idling cores through the FreeRTOS FIFO queue to
allow for file system and EEPROM support.

Make delay a weak function so FreeRTOS can override.

Add cycle count support under FreeRTOS using a PIO SM.

Use a task-based approach for handling the USB periodic work
instead of the IRQ-based one in the main core.

Set 8 prio levels so it fits in 3 bits nicely (0..7).
2022-04-24 20:59:57 -07:00
Earle F. Philhower, III
ce7d337c5c
Add SoftwareSerial-like PIO based UARTs (#391)
Adds support to the core for PIO-based, software-created UARTs, up to 8 (the number of PIO state machines) possible.

By using a custom program on the PIO state machines, it allows for very high bit rates and does not require CPU or interrupts.

Bit widths from 5- to 8-bits, 1 or 2 stop bits, and even/odd/none parity are supported.
2021-12-28 08:27:08 -08:00
Maximilian Gerhardt
3df3f0741a
Add PlatformIO support (#250)
* Add package.json

To make package easily integratable with PlatformIO

* Correct name back to original one

* Format package.json

* Add first shot at builder script

* Add USB stack flags, fix compile flags

* Formatting

* Add more link & USB flags

* Build Boot2 bootloader

* Formatting

* Generate linkerscript, linker fixes

* Fix linkflags, make firmware runnable

* Update USB flags and RAM size

* Correct USB flags, add dynamic sketch partitioning

* Restructure filesystem size and flash size logic into platform code

* Move C++ only flags to CXXFLAGS

* Add PlatformIO documentation

* Link to new platform.io document in the docs TOC

* Fix typos in platformio docs

* Fix one additional typo in platformio.rst

* Update docs

* Remove wrongly commited build folder
2021-09-13 21:28:07 -07:00
Earle F. Philhower, III
a0dac52e0e
Rationalize Adafruit Feather infra, update docs (#145)
Use same board.txt format as other Adafruit boards.
Add in quick note about the new USB stack to the docs.
2021-05-19 10:07:03 -07:00
Earle F. Philhower, III
13f4be33bc
Update index.rst 2021-05-14 08:18:33 -07:00
Earle F. Philhower, III
6cf90add8c Add basic USB documentation 2021-05-14 07:58:32 -07:00
Earle F. Philhower, III
93c30e0233 Reorder TOC slightly 2021-05-13 00:20:48 -07:00
Earle F. Philhower, III
1815c45f92
Add multicore support with setup1/loop1 (#113)
Support running code on the second core by adding a setup1() and/or
a loop1() routine to a sketch.  These functions operate exactly like
the normal Arduino ones, and anything they call will be run on
the second core automatically.

Add a simple multicore example.
2021-04-24 11:40:29 -07:00
Earle F. Philhower, III
735c14acc7 Clean up documentation 2021-04-06 15:49:56 -07:00
Earle F. Philhower, III
bbac9d4b96
Add full-fledged documentation, update I2S API (#80)
Last step before 1.0. Docs for readthedocs.io.

Update the I2S API to mimic others where `setXXX` is called before
`begin()` to set the GPIO pins used.
2021-04-06 08:01:45 -07:00