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19914: boards: complete SD Card MTD definition for several bords r=benpicco a=gschorcht ### Contribution description This PR completes the MTD definition for the following boards: - `seeedstudio-gd32` - `sipeed-longan-nano` including `sipeed-longan-nano-tft` - `waveshare-nrf52840-eval-kit` - ESP32x boards that have an SPI SD Card interface and use `mtd_sdcard_default` ### Testing procedure Green CI ### Issues/PRs references#19465 Prerequisite for PR #19465 19915: drivers/lcd: support MCU 8080 8-bit parallel mode r=benpicco a=gschorcht ### Contribution description LCD driver ICs usually support - SPI serial mode, - MCU 8080 8-bit parallel mode and - MCU 8080 16-bit parallel mode. This PR extends the LCD display driver API to support the MCU 8080 8-/16-bit parallel modes and implements a GPIO-driven MCU 8080 8-bit parallel mode. The following features are already working locally and will be provided as follow-on PRs for which this PR is a prerequisite. - GPIO-driven bit-banging implementation of the 16-bit mode of the MCU 8080 parallel interface - Enabling the display on `stm32f723e-disco` and `stm32l496g-disco` using the feature above - Definition of a low-level API for the parallel modes using the LCD controller of the MCU - Using FMC for the display on `stm32f723e-disco` and `stm32l496g-disco` - Using LCD controller for the display of `esp32-wt32-sc01-plus` (PR #19917) ### Testing procedure The PR can be tested with PR #19917 on top of this PR. ``` BOARD=esp32s3-wt32-sc01-plus make -j8 -C tests/drivers/st77xx flash ``` The following video shows the test. **Please note** The test is pretty slow because the display has 480 x 320 pixels and the MCU 8080 8-bit parallel interface is realized by a GPIO-driven bit-banging implementation where each GPIO of the data bus is set separately. A follow-up PR will use the ESP32-S3 LCD controller and DMA for this board. This PR just defines the extension of the driver by the parallel interface and provides the bit-banging implementation for MCUs that don't have a LCD controller on chip. https://github.com/RIOT-OS/RIOT/assets/31932013/c1e3e3d7-05d9-4ca5-8fff-9a5eaca50fba ### Issues/PRs references Co-authored-by: Gunar Schorcht <gunar@schorcht.net> |
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