Hello NuttX devs! I've followed Alan's great tutorial on setting up an OLED on the Blue Pill stm32f103-minimum board but running into trouble.
Video: https://www.youtube.com/watch?v=TZ4i71ArtRo&t=245s * I've compiled, flashed, and able to get into nsh * The fb driver is listed as /dev/fb0 and the 'fb' app is present * When I run the 'fb' app I get repetitive errors, two different codes, but usually '6' (sometimes '116') -------------------------- nsh> fb VideoInfo: fmt: 0 xres: 128 yres: 64 nplanes: 1 PlaneInfo (plane 0): fbmem: 0x20002f40 fblen: 1024 stride: 16 display: 0 bpp: 1 Mapped FB: 0x20002f40 0: ( 0, 0) (128, 64) ERROR: ioctl(FBIO_UPDATE) failed: 6 1: ( 11, 5) (106, 54) ERROR: ioctl(FBIO_UPDATE) failed: 6 2: ( 22, 10) ( 84, 44) ERROR: ioctl(FBIO_UPDATE) failed: 6 3: ( 33, 15) ( 62, 34) ERROR: ioctl(FBIO_UPDATE) failed: 6 4: ( 44, 20) ( 40, 24) ERROR: ioctl(FBIO_UPDATE) failed: 6 5: ( 55, 25) ( 18, 14) ERROR: ioctl(FBIO_UPDATE) failed: 6 Test finished * I have verified that the screen is working and wired up correctly using an Arduino Mega. * I'm using this ssd1306 HiLet Go 128X64 OLED: https://www.amazon.com/gp/product/B06XRBTBTB/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&psc=1 * AFAIK I've done an apples/apples with the tutorial, same board, same screen, same wiring, but no luck. I'm at a loss, as debugging at this low of a level is pretty foreign to me. It feels like I've missed something easy, but I've triple checked the connections and config and not sure where to go from here. Thanks! Matt
