From b847235d3e93c87f64f1f7c224cf5122ab444068 Mon Sep 17 00:00:00 2001 From: "Wladimir J. van der Laan" Date: Fri, 6 Nov 2020 06:08:22 +0100 Subject: [PATCH] Add note about weird "SPI" mode for ST7789V MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We're not in Kansas anymore here… --- doc/onboard.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/onboard.md b/doc/onboard.md index 9f166a8..5daf5a6 100644 --- a/doc/onboard.md +++ b/doc/onboard.md @@ -35,7 +35,7 @@ Maix Go (source: schematic) -- ST7789V - 240x320 262K Color Single-Chip TFT Controller/Driver with Frame Memory (SPI) +- ST7789V - 240x320 262K Color Single-Chip TFT Controller/Driver with Frame Memory (SPI). Somewhat curiously the display is wired into 8-bit parallel mode (`IM3=IM2=IM1=IM0=0`, described in the datasheet as "8080-I Series MCU Parallel Interface"), and a special mode of the SPI peripheral called "OCTAL SPI" is used to interface with it. I don't think calling this SPI is entirely accurate. - NS2009 - 4-Wire Touch Screen Controller (I2C, address 0x48\*) - TF card slot (SPI)