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[driver] SSD1306 SPI display #1090
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def628e
[driver] Rename SSD1306 driver to ssd1306.i2c
rleh a06da05
[examples] Update SSD1306 examples
rleh 77ba35a
[examples] Add SH1106/SSD1306 I2C display example for Nucleo-G474RE
rleh 275c635
[driver] Add SSD1306 SPI driver
rleh 4c0e511
[examples] Add SSD1306 SPI display example for Nucleo-G474RE
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| /* | ||
| * Copyright (c) 2023, Raphael Lehmann | ||
| * | ||
| * This file is part of the modm project. | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| */ | ||
|
|
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| #include <modm/board.hpp> | ||
| #include <modm/driver/display/sh1106_i2c.hpp> | ||
| // #include <modm/driver/display/ssd1306_i2c.hpp> | ||
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| /// SH1106 display in I2C mode | ||
| using MyI2cMaster = modm::platform::I2cMaster1; | ||
| using Scl = Board::D15; | ||
| using Sda = Board::D14; | ||
|
|
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| using Display = modm::Sh1106I2c<MyI2cMaster>; | ||
| // using Display = modm::Ssd1306<MyI2cMaster>; | ||
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| Display display; | ||
|
|
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| int | ||
| main() | ||
| { | ||
| Board::initialize(); | ||
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| modm::delay(100ms); | ||
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| MyI2cMaster::connect<Sda::Sda, Scl::Scl>(); | ||
| // Use 20kHz I2C and internal pull-ups, works without external pull-ups | ||
| // if the jumper wires are short enought | ||
| MyI2cMaster::connect<Sda::Sda, Scl::Scl>(MyI2cMaster::PullUps::Internal); | ||
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| modm::delay(100ms); | ||
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| RF_CALL_BLOCKING(display.initialize()); | ||
| RF_CALL_BLOCKING(display.setOrientation(modm::glcd::Orientation::Landscape0)); | ||
| RF_CALL_BLOCKING(display.setDisplayMode(Display::DisplayMode::Inverted)); | ||
| RF_CALL_BLOCKING(display.setContrast(80)); | ||
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| display.setFont(modm::font::Assertion); | ||
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| modm::ShortPeriodicTimer timer(333ms); | ||
| uint16_t counter(0); | ||
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| while (true) | ||
| { | ||
| if (timer.execute()) | ||
| { | ||
| display.clear(); | ||
| display.setCursor(1, 1); | ||
| display << "Hello World!"; | ||
| display.setCursor(1, 17); | ||
| display << counter++; | ||
| display.setCursor(1, 33); | ||
| display << "Line 3"; | ||
| display.setCursor(1, 49); | ||
| display << "Line 4"; | ||
|
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| display.update(); | ||
| } | ||
| } | ||
|
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| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| <library> | ||
| <extends>modm:nucleo-g474re</extends> | ||
| <options> | ||
| <option name="modm:build:build.path">../../../build/nucleo_g474re/sh1106_i2c</option> | ||
| </options> | ||
| <modules> | ||
| <module>modm:driver:sh1106.i2c</module> | ||
| <module>modm:driver:ssd1306.i2c</module> | ||
| <module>modm:platform:gpio</module> | ||
| <module>modm:platform:i2c:1</module> | ||
| <module>modm:build:scons</module> | ||
| </modules> | ||
| </library> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| /* | ||
| * Copyright (c) 2023, Raphael Lehmann | ||
| * | ||
| * This file is part of the modm project. | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| */ | ||
|
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| #include <modm/board.hpp> | ||
| #include <modm/driver/display/ssd1306_spi.hpp> | ||
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| /** | ||
| * SSD1306 display in SPI 4-wire mode | ||
| * | ||
| * SCK <-> Arduino D3 / GpioB3 | ||
| * MOSI <-> Arduino D4 / GpioB5 | ||
| * CS <-> Arduino D5 / GpioB4 | ||
| * D/C# <-> Arduino D2 / GpioA10 | ||
| * RESET# <-> Arduino D7 / GpioA8 | ||
| * | ||
| * En7V5 <-> Arduino D6 / GpioB10 | ||
| * | ||
| * TODO: Describe charge pump setup for 7.5V | ||
| */ | ||
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| using MySpiMaster = modm::platform::SpiMaster1; | ||
| using Sck = Board::D3; | ||
| using Mosi = Board::D4; | ||
| using Cs = Board::D5; | ||
| using Dc = Board::D2; | ||
| using Reset = Board::D7; | ||
| using En7V5 = Board::D6; | ||
| using Display = modm::Ssd1306Spi<MySpiMaster, Cs, Dc, 32>; | ||
| Display display; | ||
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| int | ||
| main() | ||
| { | ||
| Board::initialize(); | ||
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| En7V5::reset(); | ||
| En7V5::setOutput(); | ||
| Reset::reset(); | ||
| Reset::setOutput(); | ||
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| Cs::setOutput(); | ||
| Dc::setOutput(); | ||
| MySpiMaster::connect<Sck::Sck, Mosi::Mosi>(); | ||
| MySpiMaster::initialize<Board::SystemClock, 660_kHz>(); | ||
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| Cs::set(); | ||
| En7V5::set(); | ||
| modm::delay(500ms); | ||
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| Reset::set(); | ||
| modm::delay(1ms); | ||
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| RF_CALL_BLOCKING(display.initialize()); | ||
| RF_CALL_BLOCKING(display.setOrientation(modm::glcd::Orientation::Landscape0)); | ||
| RF_CALL_BLOCKING(display.setDisplayMode(Display::DisplayMode::Inverted)); | ||
| RF_CALL_BLOCKING(display.setContrast(80)); | ||
|
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| display.setFont(modm::font::Assertion); | ||
|
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||
| modm::ShortPeriodicTimer timer(333ms); | ||
| uint16_t counter(0); | ||
|
|
||
| while (true) | ||
| { | ||
| if (timer.execute()) | ||
| { | ||
| display.clear(); | ||
| display.setCursor(1, 1); | ||
| display << "Hello World!"; | ||
| display.setCursor(1,17); | ||
| display << counter++; | ||
|
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| display.update(); | ||
| } | ||
| } | ||
|
|
||
| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| <library> | ||
| <extends>modm:nucleo-g474re</extends> | ||
| <options> | ||
| <option name="modm:build:build.path">../../../build/nucleo_g474re/ssd1306_spi</option> | ||
| </options> | ||
| <modules> | ||
| <module>modm:driver:ssd1306.spi</module> | ||
| <module>modm:platform:gpio</module> | ||
| <module>modm:platform:spi:1</module> | ||
| <module>modm:build:scons</module> | ||
| </modules> | ||
| </library> |
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4 changes: 2 additions & 2 deletions
4
...2f4_discovery/display/ssd1306/project.xml → ...discovery/display/ssd1306_i2c/project.xml
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The command sequence {
0x10,0x02,0xB0 | page} gets interpreted (at least on my SSD1306 GME12864 module) as three command:1.
0x10: Set Higher Column Start Address for Page Addressing Mode (10h~1Fh) to value 02.
0x02Set Lower Column Start Address for Page Addressing Mode (00h~0Fh) to value 23.
0xB0Set Page Start Address for Page Addressing Mode (B0h~B7h) to valuepageThe first two commands result in the first two columns of display pixels displaying garbage and the last two columns of the frame not getting displayed, so I removed them.
SSD1106 should behave the same way like SH1106 in Page Addressing Mode, but I don't have SH1106 hardware laying arround, so I can't test it. Maybe @TomSaw could check?
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And the hardware test shows:
These lines have a purpose. Whitout, the displays pages (columns of pixels) get ugly shifted.
I remember having read about this necessary micro-management in an adafruit or arduino library comment, not in the datasheet or elsewhere.