Riverdi STM32 Manuale utente
User Manual
RIVERDI STM32 Evaluation Board
Rev. 1.4
2021-06-02
Riverdi Evaluation Board User Manual
Riverdi STM32 Evaluation Board User Manual Rev. 1.4
© 2021 Riverdi Page 2 of 16 www.riverdi.com
REVISION
RECORD
REVNO.
REVDATE
CONTENTS
REMARKS
1.0
2020-08-17
Initial Release
1.1
2020-11-06
CPU information updated
1.2
2021-03-09
Pictures updated
1.3
2021-03-31
Document adjusted into standard template
1.4
2021-06-02
Corrections on description related to jumper
P7,P8,P9
CONTENTS
REVISION RECORD................................................................................................................................... 2
Target readers ................................................................................................................................. 4
Overview.......................................................................................................................................... 4
Introduction..................................................................................................................................... 5
Board functionality test................................................................................................................... 5
Interfacing with EVE Displays .......................................................................................................... 6
Using the SPI on the STM32 .......................................................................................................... 10
Hardware features ........................................................................................................................ 11
7.2.1 Internal .......................................................................................................................... 11
7.2.2 External.......................................................................................................................... 12
Riverdi STM32 Evaluation Board User Manual Rev. 1.4
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Additional literature...................................................................................................................... 14
Warranty limitation....................................................................................................................... 14
Legal information ...................................................................................................................... 14
Appendix.................................................................................................................................... 15
Riverdi STM32 Evaluation Board User Manual Rev. 1.4
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Target readers
The aim of this document is to enable engineers using Riverdi STM32 Evaluation Board to get the tested
Riverdi display running fast and easily. Further tests and development can be carried out shortly after
Riverdi STM32 Evaluation Board is switched on for the first time.
Overview
The Riverdi evaluation board is designed as a complete demonstration and development platform for
Riverdi’s EVE and IPS displays lines driver technology.
The Riverdi evaluation board features an STM32F469II Cortex-M4 microcontroller with: LCD parallel
interface including 8080/6800 modes, an LCD-TFT controller, Chrom-ART Accelerator™ for enhanced
graphic content creation (DMA2D), secure digital input/output interface (SDIO), LTDC signals available
on header P11 with additional MCU pins broken out on P12, external SDRAM, MicroSD slot for
data/media storage, RiBUS FFC conn P3 featuring SPI, UART and LCD supply pins (SPI can be controlled
by either STM32 or UBS serial bridge via jumper on P7/8/9) and configurable display backlight supply
(EXT/INT).
Riverdi STM32 Evaluation Board User Manual Rev. 1.4
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Introduction
Riverdi STM32 Evaluation Board is a tool designed to help get you started on working with Riverdi
products. It not only supports EVE modules but also RGB displays (in combination with touch panels)
by Riverdi.
You have two primary options to drive external displays:
1. Jumper between P7 & P8: FTDI serial/SPI bridge connected to RiBUS SPI:
Use the FT232 serial to SPI bridge by connecting a micro USB cable to the connector labeled
“Direct USB” and using the EVE Screen Editor to quickly generate graphical user interfaces with
minimum effort .
2. Jumper between P9 & P8: STM32 connected to RiBUS SPI:
Use the onboard STM32F4 to develop and test firmware for driving a connected display or
display controller, like the FT80x, FT81x and BT81x series.
Board functionality test
There are firmware examples with which you can test your Riverdi STM32 Evaluation Board. You can
also use those as a starting point for your own firmware development.
Riverdi STM32 Evaluation Board User Manual Rev. 1.4
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Interfacing with EVE Displays
Using the FTDI SPI Bridge & EVE Screen Editor
Prerequisites:
•Riverdi STM32 Evaluation Board
•EVE-enabled display
•RiBUS flexible flat cable (FFC)
EVE Screen Editor Installation
Download and install the EVE screen Editor from the FTDI homepage:
https://www.ftdichip.com/Support/Utilities.htm#EVEScreenEditor
Setup & Configuration
To connect the FTDI SPI bridge to the EVE display, the configuration jumpers need to be placed
between P7 and P8, as in the picture below.
Set the backlight jumper (placed over the backlight power configuration pins) to 5V BL on P4 (also
refer to the picture below). Please see description on how to connect power for backlight in section
“Hardware features”, subsection “Backlight power supply”.
Riverdi STM32 Evaluation Board User Manual Rev. 1.4
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Start EVE Screen Editor and you will be greeted with the screen similar to the one below:
On the lower right hand side of the window, click on the ”Devices” tab.
On the lower left hand side, you will find 3 buttons:
This button refreshes the devices list above it;
This button opens a menu to select one from the
preconfigured displays list;
This button opens a menu to define your own
display to be driven.
Riverdi STM32 Evaluation Board User Manual Rev. 1.4
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Use a USB cable to connect the “USB Direct” port to your computer, when running the EVE Screen
Editor application. Click the “Refresh” button afterwards and your dev board should show up like in
the picture below:
Select "Single RS232-HS ()” entry by clicking on it and use the ‘Connect’ button to let EVE Screen Editor
try and boot up your display.
If everything works properly, your display should show a blue screen with some text.
Riverdi STM32 Evaluation Board User Manual Rev. 1.4
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Hello World
After connecting to Eval Board, to generate its first text message (e. g. 'Hello World'), we are going to
use the EVE Screen Editor’s built-in drag & drop editor.
(The drag operation is shown in green, the generated coprocessor commands are shown in the yellow
box and the button to send the data to the EVE display is seen inside the red box.)
What you see now is the preview of what will be drawn on the physical screen in a moment. Note that
in the lower part of the window the coprocessor tab shows which EVE pre-processor commands were
generated and will be sent to the EVE display shortly after.
To send the commands also drawn in the preview pan to the physical display, press the button labeled
“Upload RAM_G and RAM_DL”.
Riverdi STM32 Evaluation Board User Manual Rev. 1.4
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Using the SPI on the STM32
Prerequisites
•Riverdi STM32 Evaluation Board
•EVE enabled display
•RiBUS flexible flat cable (FFC)
•Your favorite tool to flash the onboard STM32 (assuming that you use STM32CubeProgrammer
together with an STLink v2 compatible ISP Programmer)
Installation
Use the provided source code or the pre-compiled binary file.
Configuration
In order to connect the STM32 to the EVE display, the configuration jumpers need to be placed between
P9 and P8. Check the jumper and the USB cable position (in ‘STM32 USB’ socket) in the picture below.
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