Ang Li
E-mail: [email protected]
Tested on:
Legion Y7000P IAH7 (15.6-inch 2022)
-12th Gen Intel(R) Core(TM) i5-12500H 3.10 GHz
-Windows 11 21H2 22000.1098
-64-bit operating system, x64-based processor
- Why is bit-banging impractical on your laptop, despite it having a much faster processor than the RP2040?
- If we use bit-banging there may produce lots of communication errors，which means it is unreliable and backward for our laptop。
- What are some cases where directly using the GPIO might be a better choice than using the PIO hardware?
- GPIOs are more suitable for less complex tasks such as input and output as well as analog I2C or SPI data lines, ADC voltage detection, output PWM waveforms, etc.
- How do you get data into a PIO state machine?
- Get data into a PIO state machine via a FIFO queue, which can exchange data with the main program.
- How do you get data out of a PIO state machine?
- By using ‘pull’ instruction to take data.
- How do you program a PIO state machine?
- Use PIO assembly language
- In the example, which low-level C SDK function is directly responsible for telling the PIO to set the LED to a new color? How is this function accessed from the main “application” code?
- "pio_sm_put_blocking". Write data to the TX FIFO queue.If the TX FIFO queue is full then block it.
- What role does the pioasm “assembler” play in the example, and how does this interact with CMake?
- Its responsibility is to compile the assembly code into a human readable format.
Please check this file
Please check this file
Please check this file
Please check the folder in this link , which contains all of the code to make LED blink and change color while sending "Hello World".