Questions tagged [saleae-logic-analyzer]

is a logic and protocol analyzer used to record, view, and measure digital signals on a PC, using SW from the same brand.

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Lighting up LEDS via I2C Bus of a NeoTrellis 4x4 RGB Led Matrix

Many attempts to write to an i2c slave to make rgb leds light up have failed. The hardware in question is found at: https://learn.adafruit.com/adafruit-neotrellis There is an arduino library and a ...
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0answers
68 views

Why High Speed CAN messages with a recessive level in ACK slot from OBD II port on 2019 GM Chevy Cruze

I want to collect some CAN traffic from my car. I got two devices. One is Saleae Logic8. The other is Vector VN1630A. I think the CAN protocol is straightforward that we can listen the CAN traffic by ...
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1answer
139 views

Change waveform into binary in Saleae Logic Analyzer

I'm using this famous logic analyzer and I would like to know if I can change the waveform into binary, like I've done in this pic (white numbers).
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1answer
254 views

Asynchronous serial inversion logic

I am using Saleae logic analyzer to reverse a console port. Saleae is able to successfully decode the signal (asynchronous serial) after performing an "invert" operation on the received signals. I ...
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3answers
2k views

How do I analyze this UART signal?

I want to make the same signal like the following images using an Arduino Uno. But I can't find the baudrate of this signal. I calculated baudrate the same way as Wikipedia. But when I used the ...
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1answer
528 views

Logic Analyzer shows voltage change in analog but not digital

While using a logic analyzer with analog voltage to test Digital Output Pin voltages on an Arduino UNO, I am seeing the expected digital output and analog output (HIGHs and LOWs for digital and 5V to ...
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1answer
2k views

STM32F205VC: USART framing error?

I'm trying to use USART in my program on STM32F205VC, but instead of sending my data I get some weird chars in PuTTY. I've used a Saleae Logical Analyzer and the result looks like this: This is my ...
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2answers
1k views

Reverse Engineer Serial Signal

This is a long post as I want to take you through all the work I've done. The TL;DR version is I've got an unknown controller for a mechanical heat pump and I'm trying to reverse engineer the signal ...
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2answers
2k views

Circuit to protect Saleae input from high voltages

I was browsing OSH park's shared circuits when I saw this: Logic Analyser Buffer. Since a true 12v RS232 signal will exceed the Salese's voltage limits, something like this could be useful. The diode ...
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1answer
3k views

What are these pulses?

To continue of this question... I figured out the main problem and now I have an odd problem. at first, let me to put the codes. "Main.c": ...
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1answer
333 views

Is the output clock correct?

I have written and using a STM32F030F4 for toggle a pin. I configured all things and my program is this (I use GPIOA->ODR ^= GPIO_PIN_2 for toggle GPIOA2 in ...