{"id":4331,"date":"2022-01-25T09:14:42","date_gmt":"2022-01-25T08:14:42","guid":{"rendered":"https:\/\/www.pschatzmann.ch\/home\/?p=4331"},"modified":"2022-01-25T13:59:55","modified_gmt":"2022-01-25T12:59:55","slug":"platformio-debugging-the-esp32-audiokit-os-x-and-raspberry-pi-os","status":"publish","type":"post","link":"https:\/\/www.pschatzmann.ch\/home\/2022\/01\/25\/platformio-debugging-the-esp32-audiokit-os-x-and-raspberry-pi-os\/","title":{"rendered":"PlatformIO-Arduino: Debugging the ESP32 AudioKit  with OS\/X and Raspberry PI OS"},"content":{"rendered":"<p>I was planning to use the <strong>PlatformIO Debugger<\/strong> for quite some time:<\/p>\n<ul>\n<li>Here is a good overview of how to <a href=\"https:\/\/docs.platformio.org\/en\/latest\/tutorials\/espressif32\/arduino_debugging_unit_testing.html\">get started<\/a>.<\/li>\n<li>I can also recommend <a href=\"https:\/\/medium.com\/@manuel.bl\/low-cost-esp32-in-circuit-debugging-dbbee39e508b\">Low-cost ESP32 In-circuit Debugging<\/a> from Manuel BL. <\/li>\n<\/ul>\n<p>I wanted to use it both with <strong>OS\/X<\/strong> and <strong>Linux<\/strong>: Most tutorials however describe Windows and therefore were not helpful to resolve my issues.<\/p>\n<p>It took me quite some time to have a working solution. Therefore I would like to document some additional steps and recommendation:<\/p>\n<ul>\n<li>Please make sure that you start with the <strong>simplest example possible<\/strong>. I wanted to debug quite a complex big application and that&#8217;s a bad way to start!<\/li>\n<li>Then set up and test the example <strong>w\/o debugger first<\/strong> as a clean starting point. This was giving me e.g. the following platformio.ini on my PI<\/li>\n<\/ul>\n<pre><code>[env:esp32dev]\nplatform = espressif32\nboard = esp32dev\nframework = arduino\nmonitor_speed = 119200\nupload_port = \/dev\/ttyUSB0\n\n<\/code><\/pre>\n<h2>Hardware<\/h2>\n<p>Here is the overview of my hardware<\/p>\n<ul>\n<li>AI Thinker <strong>AudioKit<\/strong> (board with ESP32)<\/li>\n<li><strong>Raspberry PI<\/strong> &#8211; to run PlatformIO (Alternative 1)<\/li>\n<li><strong>McBook<\/strong> with OS\/X &#8211; to run PlatformIO (Alternative 2)<\/li>\n<li><strong>ESP32-Prog<\/strong> (JTAG debugging device)<\/li>\n<\/ul>\n<h2>ESP32 \/ AI Thinker AudioKit<\/h2>\n<p>You can debug <strong>any ESP32 baord<\/strong> which has the JTAG pins available. The <strong>AudioKit<\/strong> has the advantage that it provides labelled JTAG pins. So connecting the device to the <strong>ESP Prog<\/strong> is straight forward. I also added the regular ESP32 Pin names in the table below if you want to use a regular EP32 board instead.<\/p>\n<table>\n<thead>\n<tr>\n<th>ESP Prog<\/th>\n<th>DevKit<\/th>\n<th>ESP32 JTAG Pin<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>MTDO<\/td>\n<td>TDO<\/td>\n<td>GPIO15<\/td>\n<\/tr>\n<tr>\n<td>MTDI<\/td>\n<td>TDI<\/td>\n<td>GPIO12<\/td>\n<\/tr>\n<tr>\n<td>MTCK<\/td>\n<td>TCK<\/td>\n<td>GPIO13<\/td>\n<\/tr>\n<tr>\n<td>MTMS<\/td>\n<td>TMS<\/td>\n<td>GPIO14<\/td>\n<\/tr>\n<tr>\n<td>GND<\/td>\n<td>GND<\/td>\n<td>GND<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Please double check your wiring since is one of the most frequent source of issues. I also recommend to keep the wires as short as possible.<\/p>\n<p>The following <strong>AudioKit DIP switch<\/strong> settings were working for me<\/p>\n<ul>\n<li>1: OFF<\/li>\n<li>2: OFF<\/li>\n<li>3: OFF<\/li>\n<li>4: ON  (MTCK)<\/li>\n<li>5: ON  (MTDO)<\/li>\n<\/ul>\n<h2>Linux \/ Raspberry PI<\/h2>\n<p>In Linux you must install the <a href=\"https:\/\/docs.platformio.org\/en\/stable\/faq.html#faq-udev-rules\">udev-rules<\/a>!<br \/>\nTherefore I was executing the following steps:<\/p>\n<pre><code>curl -fsSL https:\/\/raw.githubusercontent.com\/platformio\/platformio-core\/master\/scripts\/99-platformio-udev.rules | sudo tee \/etc\/udev\/rules.d\/99-platformio-udev.rules\nsudo usermod -a -G dialout $USER\nsudo usermod -a -G plugdev $USER\nsudo reboot\n<\/code><\/pre>\n<p>Here is my final working platformio.ini with debugging support<\/p>\n<pre><code>[env:esp32dev]\nplatform = espressif32\nboard = esp32dev\nframework = arduino\nmonitor_speed = 119200\nupload_port = \/dev\/ttyUSB0\n\ndebug_tool = esp-prog\ndebug_init_break = tbreak setup\n<\/code><\/pre>\n<p>The <code>debug_init_break<\/code> makes sure that the debugger stops at the setup method. After this the debugger was working for me.<\/p>\n<h2>OS\/X<\/h2>\n<p>It seems that the OS\/X <strong>FTDIUSBSerialDriver<\/strong> is causing that the debugging device is considered as two serial interfaces but this is not what we want. You can check this by executing <code>ls \/dev\/tty.usbserial*<\/code>. If you get additional ports with the <strong>ESP32-Prog<\/strong> plugged in, you have an issue.<\/p>\n<p>Usually you will find the instruction to unload the driver:<\/p>\n<ul>\n<li>Unloading the driver<\/li>\n<\/ul>\n<pre><code>sudo kextunload -v -c  com.apple.driver.AppleUSBFTDI\n<\/code><\/pre>\n<ul>\n<li>Checking that the driver has been unloaded<\/li>\n<\/ul>\n<pre><code>sudo kextstat | grep FTDI\n<\/code><\/pre>\n<p>I suggest to plug in the <strong>ESP32-Prog<\/strong> several times and then double check that the driver is still unloaded: However <strong>this was not working for me<\/strong>!<\/p>\n<p>After some searching I found that <a href=\"https:\/\/ftdichip.com\/drivers\/d2xx-drivers\/\">ftdichip.com<\/a> is providing a <strong>D2xxHelper<\/strong> which prevents the AppleUSBFTDI from loading: On the site just search for D2xxHelper.<\/p>\n<p>So I <strong>installed the D2xxHelper driver<\/strong> and restarted the system: and indeed this resolved my issue.<\/p>\n<p>Here is my final working platformio.ini with debugging support<\/p>\n<pre><code>[env:esp32dev]\nplatform = espressif32\nboard = esp32dev\nframework = arduino\nmonitor_speed = 115200\nupload_port = \/dev\/tty.SLAB_USBtoUART\n\ndebug_tool = esp-prog\ndebug_init_break = tbreak setup\n<\/code><\/pre>\n<h2>Adding additional Complexity<\/h2>\n<ul>\n<li>Now after having the basic debugging working I can start to deal with <strong>my complex main program<\/strong> for which I added my <strong>additional libraries<\/strong> and build flags to the platformio.ini:<\/li>\n<\/ul>\n<pre><code>lib_deps =  https:\/\/github.com\/pschatzmann\/arduino-audio-tools, https:\/\/github.com\/pschatzmann\/arduino-fdk-aac.git, https:\/\/github.com\/pschatzmann\/arduino-audiokit\nlib_ldf_mode = deep+\nbuild_flags =  -DCORE_DEBUG_LEVEL=5 -DAUDIOKIT_BOARD=5 -DUSE_FDK -DFDK_FORCEINLINE=inline\n<\/code><\/pre>\n<ul>\n<li>Now my program was getting <strong>too big<\/strong> to fit into the available memory. So I needed to define a partition scheme: <\/li>\n<\/ul>\n<pre><code>board_build.partitions = huge_app.csv\n<\/code><\/pre>\n<ul>\n<li>But the debugger is <strong>failing now<\/strong>.<\/li>\n<li>After some further research I found that my application was using some <strong>buttons<\/strong> which <strong>conflict<\/strong> with the Debug Pins. This functionality needs to be deactivated.  <\/li>\n<li>And finally <strong>the debugging is working successfully<\/strong> with my complex program as well&#8230;<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>I was planning to use the PlatformIO Debugger for quite some time: Here is a good overview of how to get started. I can also recommend Low-cost ESP32 In-circuit Debugging from Manuel BL. I wanted to use it both with OS\/X and Linux: Most tutorials however describe Windows and therefore [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4352,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[20,1],"tags":[28],"class_list":["post-4331","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino","category-generic","tag-esp32audiokit"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PlatformIO-Arduino: Debugging the ESP32 AudioKit with OS\/X and Raspberry PI OS - Phil Schatzmann<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pschatzmann.ch\/home\/2022\/01\/25\/platformio-debugging-the-esp32-audiokit-os-x-and-raspberry-pi-os\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PlatformIO-Arduino: Debugging the ESP32 AudioKit with OS\/X and Raspberry PI OS - Phil Schatzmann\" \/>\n<meta property=\"og:description\" content=\"I was planning to use the PlatformIO Debugger for quite some time: Here is a good overview of how to get started. 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I can also recommend Low-cost ESP32 In-circuit Debugging from Manuel BL. 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