Adafruit_ZeroDMA
Adafruit_ZeroDMA copied to clipboard
adafruit
DMA helper/wrapped for ATSAMD21 such as Arduino Zero & Feather M0
- **Describe the scope of your change--i.e. what the change does and what parts of the code were modified.** The API prior this change only supports deallocating DMA channels (via...
As I added here: https://github.com/adafruit/Adafruit-GFX-Library/issues/349 I ran into an issue when compiling my own library using PlatformIO which depends on ZeroDMA for the ATSAMD51. I further debugged the issue today...
I added an I2C-DMA example for the library. The example uses a SSD1306 based 64x48 OLED The library itself is not modified, all codes, including the SSD1306 codes, are contained...
If a DMA channel is created without calling setCallback, startJob will end up configuring the channel in such a way that it can not be used properly. The problem is...
I am trying to make use of the DMA feature for SPI with a Metro M4, are there any current examples for this? SPI.transfer(&buffer, 0, 1234, false); Or to be...
From https://github.com/adafruit/Adafruit_ZeroDMA/blob/64dce3e63f7589c6d365dbd75b1b420e69bcce6e/Adafruit_ZeroDMA.cpp#L450 > You'll want to keep the pointer for later if you need to modify or **free** the descriptor. Looking at the implementation, `&_descriptor[channel]` is being return if `addDescriptor`...
To avoid dropouts in audio or video while using ping-pong style buffers it's necessary for the system to be notified when a buffer is done transmitting so a new buffer...
