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Hi Paul. I have the flash chip connected to a STM32G474. I use the STM32CubeIDE to configure the SPI to run at mode 0, 2.6 MBits/sec. I use the HAL calls to transmit / receive data over SPI with the flash chip. I tried different speeds and observed no change to the data written to flash. I also...

Hello. I am using W25Q128JVSIQ for flash storage. I am curious if anyone has run into this or a similar issue with using the flash chip with standard SPI. 1: I can program page 0 up to 256 bytes without issues. 2: I can then program page 1 up to 255 bytes without issues. 3: If I program page 1...

Does anyone have a suggestion on what mechanism to use to accomplish this on a Teensy 3.6? Send a predefined sine wave out SPI to a 4 channel DAC (AD5664R) at a set data rate (frequency). Each DAC channel takes 24 bits of data with an active low sync to store and update the DAC values...

Thanks Kurt. The T3.5 indicates that "digital I/O are 5 volt tolerant". Does that imply that TX1 is 5V tolerant?

Hardware question - is the servo (MX-28AT, TTL) data pin safe to connect to the TX1 pin on the T3.6? Or do you need a bi-directional lvl shifter?

Thanks for the help everyone. Was there something specific that was changed to make std::string not work from 1.35 to 1.39?

"String" is not part of the namespace std. I was able to use std::string in 1.35, just trying to understand what I need to do with the latest update.

Can you explain? Am I not able to use std::string?

I have a simple test program that uses two strings. But when I include the second string (world), the program fails to link. Can someone help me understand the issue? Thanks. Teensyduino, Version 1.39, Arduino 1.8.4. #include <string> using namespace std; void setup() { // put your...

Has anyone tried building code with build_flags = -std=c++11? I am getting the following errors. In file included from /Users/joe/.platformio/packages/framework-arduinoteensy/cores/teensy3/WProgram.h:37:0, from /Users/joe/.platformio/packages/framework-arduinoteensy/cores/teensy3/Arduino.h:1...

I understand what you are saying. Thanks for the help.

The threads are setup to allow future changes, for example the first thread pushes all the commands on to a vector while the second one takes the commands off of a vector to process. The two mutex used to be counting semaphores running in FreeRTOS for task syncs. Switching things over to...

The main thread calls heartbeat after it starts the other two threads. void heartbeat() { pinMode(LED_PIN_INTERNAL, OUTPUT); while(true) { digitalWrite(LED_PIN_INTERNAL, LOW); threads.delay(500); digitalWrite(LED_PIN_INTERNAL, HIGH)...

What is a good general approach to debugging the threads? I have 3 threads running. The main thread is just a heartbeat turning on and off the internal LED on the Teensy36. A thread that reads the serial port data and another thread that process the serial data. The read and process threads...

Thanks blackketter. That seems to have resolved the issue with snprintf. Anyone have any idea on why the stringstream << float is failing?

The first two values are %d and the last one is %f. Converting pi is where it fails. Sstream fails as well.

I am running my Teensy 3.6 under OS X 10.12.2 and it is listed as "/dev/cu.usbmodem2430871". I am also using the USB C adapter as well. What do you see if you "ls -la /dev/cu*"? This is my output: crw-rw-rw- 1 root wheel 20, 1 Jan 13 11:00 /dev/cu.Bluetooth-Incoming-Port crw-rw-rw- 1...

Just curious if anyone has come across this issue. I can't seem to convert a float to a string. My test code is below. I am running with PlatformIO with the latest updates. If I run the same code in Arduino IDE, it works fine. Trying to understand why it is failing in PlatformIO. Hardware...

I have used VxWorks in the past. It's licensing keeps it out of reach for our own projects. Do you have a recommended ChibiOS/RT build for the Teensy 3.6? Just started using the Teensy a few weeks ago. Looking for a RTOS to run on it.

Not sure if this helps but it looks like this task has a priority of 400. // create print task xTaskCreate(vPrintTask, "Task2", 200, NULL, 400, NULL);

Thank you Bill. Thanks for explaining the inner workings of the serialEvent call. I am new to this and was under the impression that the serialEvent was interrupt driven. I ended just moving the serial read and processing of the serial data in to a single task. Your FreeRTOS port is really...

I am currently running FreeRTOS 8.2.3 on a Teensy 3.6. I have two tasks running at priority idle + 1. The first task is a heartbeat that turns the LED off/on every 500ms. In serialEvent(), it calls a method to process the serial data and release a semaphore (counting). Another task is...