jmw

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  1. I need a 3.072 MHz clock for an I2S interface, but the Clocking Wizard IP module in Vivado will go no lower than 4.687 MHz in MMCM mode and 6.250 MHz in PLL mode. If I want really slow clocks, what is the best way to generate them?
  2. I spent some parts of last week porting the Adafruit GFX and SSD1306 libraries to work on a Microblaze processor on an Arty board. I got their demo app running and have put the ports on Github. They should work with other SSD1306 displays including the PMod OLED board, maybe with some modifications for the display size and additional power supply control lines. https://github.com/jmwilson/Adafruit-GFX-Library_MicroBlaze https://github.com/jmwilson/Adafruit_SSD1306_MicroBlaze