macoy
/
esp32-timer
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Browse Source

Used Austin Morlan's code to get a good base

master
Macoy Madson 2 years ago
parent
063fd46104
commit
77125e3177
23 changed files with 1383 additions and 1 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 2
      .gitignore
  2. 3
      .gitmodules
  3. 1
      Dependencies/embedded-game-programming
  4. 48
      ReadMe.org
  5. 9
      app/CMakeLists.txt
  6. 24
      app/export.sh
  7. 13
      app/sdkconfig.defaults
  8. 17
      app/src/CMakeLists.txt
  9. 387
      app/src/font.h
  10. 21
      app/src/macros.h
  11. 274
      app/src/main.c
  12. 85
      app/src/odroid/audio.c
  13. 8
      app/src/odroid/audio.h
  14. 73
      app/src/odroid/battery.c
  15. 10
      app/src/odroid/battery.h
  16. 184
      app/src/odroid/display.c
  17. 13
      app/src/odroid/display.h
  18. 99
      app/src/odroid/input.c
  19. 22
      app/src/odroid/input.h
  20. 33
      app/src/odroid/sdcard.c
  21. 5
      app/src/odroid/sdcard.h
  22. 50
      app/src/text.c
  23. 3
      app/src/text.h

2
.gitignore
View File

@ -32,3 +32,5 @@
*.out
*.app
sdkconfig
app/build

3
.gitmodules
View File

@ -4,3 +4,6 @@
[submodule "Dependencies/crosstool-NG"]
path = Dependencies/crosstool-NG
url = https://github.com/espressif/crosstool-NG.git
[submodule "Dependencies/embedded-game-programming"]
path = Dependencies/embedded-game-programming
url = https://code.austinmorlan.com/austin/embedded-game-programming

1
Dependencies/embedded-game-programming

@ -0,0 +1 @@
Subproject commit 1096c7eac2d69a0fc90ad06b0b454c6091d542c0

48
ReadMe.org
View File

@ -5,7 +5,6 @@ A timing app designed to run on my Odroid-GO.
* Setting up ESP-IDF
[[https://docs.espressif.com/projects/esp-idf/en/latest/][See docs]].
The following is to set up the toolchain by building as much of it from source as the docs have specified. While I could download a binary, I like the idea of compiling from source in case their website goes down. I'm doing this on Ubuntu 18.04.
#+BEGIN_SRC sh
# Dependencies
sudo apt-get install git wget libncurses-dev flex bison gperf python python-pip python-setuptools python-serial python-click python-cryptography python-future python-pyparsing python-pyelftools cmake ninja-build ccache libffi-dev libssl-dev gawk gperf grep gettext python python-dev automake bison flex texinfo help2man libtool libtool-bin make
@ -13,7 +12,35 @@ sudo apt-get install git wget libncurses-dev flex bison gperf python python-pip
# Submodules
cd Dependencies/esp-idf/
git submodule update --init
#+END_SRC
Next, build the toolchain:
#+BEGIN_SRC sh
cd Dependencies/esp-idf/
./install.sh
#+END_SRC
** Possibly necessary step
I'm not sure this is necessary. [[https://code.austinmorlan.com/austin/embedded-game-programming][The readme recommends doing it]].
Comment out line 981 of ~esp-idf/components/driver/sdspi_host.c~ to enable the shared SPI bus:
#+BEGIN_SRC C
// Initialize SPI bus
esp_err_t ret = spi_bus_initialize((spi_host_device_t)slot, &buscfg,
slot_config->dma_channel);
if (ret != ESP_OK) {
ESP_LOGD(TAG, "spi_bus_initialize failed with rc=0x%x", ret);
//return ret;
}
#+END_SRC
** Building compiler from source
The following is to set up the toolchain by building as much of it from source as the docs have specified. While I could download a binary, I like the idea of compiling from source in case their website goes down. I'm doing this on Ubuntu 18.04.
TODO: This doesn't work yet.
#+BEGIN_SRC sh
# Crosstool - this builds GCC for ESP32. This will take a while (27 minutes in my case)
cd ../crosstool-NG/
git submodule update --init
@ -29,3 +56,22 @@ cd Dependencies/esp-idf/
# TODO: This doesn't actually use the GCC I built, nor the tools path...
./install.sh
#+END_SRC
* Building the app
Build and flash the application to the Odroid, which should be connected via USB and powered on:
#+BEGIN_SRC sh
cd Dependencies/esp-idf/
. ./export.sh
cd ../../app
idf.py build && idf.py -p /dev/ttyUSB0 flash
#+END_SRC
Monitor, if it doesn't work:
#+BEGIN_SRC sh
idf.py -p /dev/ttyUSB0 monitor
#+END_SRC
* Source
Thanks to [[https://austinmorlan.com/][Austin Morlan]] for his Odroid Go code (MIT license), some of which I have modified.
I found it much easier to get working than [[https://github.com/OtherCrashOverride/odroid-go-firmware][Odroid-Go-Firmware]] (note: different version of that firmware [[https://github.com/OtherCrashOverride/go-play][here]]).

9
app/CMakeLists.txt
View File

@ -0,0 +1,9 @@
cmake_minimum_required(VERSION 3.5)
set(EXTRA_COMPONENT_DIRS "src")
set(COMPONENTS "esptool_py src")
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(game)

24
app/export.sh
View File

@ -0,0 +1,24 @@
#!/usr/bin/env bash
IDF_PATH=
IDF_TOOLS_PATH=
if [ -z "$IDF_PATH" ]
then
echo "IDF_PATH not set"
return
fi
if [ -z "$IDF_TOOLS_PATH" ]
then
echo "IDF_TOOLS_PATH not set"
return
fi
export IDF_PATH
export IDF_TOOLS_PATH
source $IDF_PATH/export.sh

13
app/sdkconfig.defaults
View File

@ -0,0 +1,13 @@
# Set flash size to 16MB
CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
# Set CPU frequency to 80MHz
CONFIG_ESP32_DEFAULT_CPU_FREQ_80=y
# Enable SPI RAM and allocate with heap_caps_malloc()
CONFIG_ESP32_SPIRAM_SUPPORT=y
CONFIG_SPIRAM_USE_CAPS_ALLOC=y
# Enable optimizations
CONFIG_COMPILER_OPTIMIZATION_LEVEL_RELEASE=y

17
app/src/CMakeLists.txt
View File

@ -0,0 +1,17 @@
idf_component_register(
SRCS
"main.c"
"odroid/audio.c"
"odroid/battery.c"
"odroid/display.c"
"odroid/input.c"
"odroid/sdcard.c"
"text.c"
INCLUDE_DIRS
"."
PRIV_REQUIRES
"esp_adc_cal"
"fatfs")

387
app/src/font.h
View File

@ -0,0 +1,387 @@
// AUTOMATICALLY GENERATED. DO NOT EDIT.
#pragma once
#include <stdio.h>
#include <assert.h>
#include <stdint.h>
static const int GLYPH_WIDTH = 16;
static const int GLYPH_HEIGHT = 16;
int GetGlyphIndex(char c)
{
switch (c)
{
case 'a': case 'A': { return 0; break; }
case 'b': case 'B': { return 1; break; }
case 'c': case 'C': { return 2; break; }
case 'd': case 'D': { return 3; break; }
case 'e': case 'E': { return 4; break; }
case 'f': case 'F': { return 5; break; }
case 'g': case 'G': { return 6; break; }
case 'h': case 'H': { return 7; break; }
case 'i': case 'I': { return 8; break; }
case 'j': case 'J': { return 9; break; }
case 'k': case 'K': { return 10; break; }
case 'l': case 'L': { return 11; break; }
case 'm': case 'M': { return 12; break; }
case 'n': case 'N': { return 13; break; }
case 'o': case 'O': { return 14; break; }
case 'p': case 'P': { return 15; break; }
case 'q': case 'Q': { return 16; break; }
case 'r': case 'R': { return 17; break; }
case 's': case 'S': { return 18; break; }
case 't': case 'T': { return 19; break; }
case 'u': case 'U': { return 20; break; }
case 'v': case 'V': { return 21; break; }
case 'w': case 'W': { return 22; break; }
case 'x': case 'X': { return 23; break; }
case 'y': case 'Y': { return 24; break; }
case 'z': case 'Z': { return 25; break; }
case '1': { return 26; break; }
case '2': { return 27; break; }
case '3': { return 28; break; }
case '4': { return 29; break; }
case '5': { return 30; break; }
case '6': { return 31; break; }
case '7': { return 32; break; }
case '8': { return 33; break; }
case '9': { return 34; break; }
case '0': { return 35; break; }
case ':': { return 36; break; }
case '!': { return 37; break; }
case '?': { return 38; break; }
case '.': { return 39; break; }
default: {
printf("Missing glyph for '%c'", c);
assert(NULL); break;
}
}
}
static const uint16_t glyphMap[][16] =
{
// A
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x781E,0x781E,0x781E,0x7FFE,
0x7FFE,0x7FFE,0x781E,0x781E,
0x781E,0x781E,0x781E,0x0000,
},
// B
{
0x0000,0x7FFC,0x7FFE,0x7FFE,
0x780E,0x780E,0x7FFE,0x7FFE,
0x7FFC,0x780C,0x780E,0x780E,
0x7FFE,0x7FFE,0x7FFC,0x0000,
},
// C
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x7800,0x7800,0x7800,0x7800,
0x7800,0x7800,0x7800,0x7800,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// D
{
0x0000,0x7FF8,0x7FFE,0x7FFE,
0x781E,0x781E,0x781E,0x781E,
0x781E,0x781E,0x781E,0x781E,
0x7FFE,0x7FFE,0x7FF8,0x0000,
},
// E
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x7800,0x7800,0x7FFC,0x7FFC,
0x7FFC,0x7800,0x7800,0x7800,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// F
{
0x0000,0x7FF8,0x7FF8,0x7FF8,
0x7800,0x7800,0x7FF0,0x7FF0,
0x7FF0,0x7800,0x7800,0x7800,
0x7800,0x7800,0x7800,0x0000,
},
// G
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x7800,0x7800,0x7800,0x7800,
0x787E,0x787E,0x781E,0x781E,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// H
{
0x0000,0x781E,0x781E,0x781E,
0x781E,0x781E,0x7FFE,0x7FFE,
0x7FFE,0x7FFE,0x781E,0x781E,
0x781E,0x781E,0x781E,0x0000,
},
// I
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x03C0,0x03C0,0x03C0,0x03C0,
0x03C0,0x03C0,0x03C0,0x03C0,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// J
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x00F0,0x00F0,0x00F0,0x00F0,
0x00F0,0x00F0,0x70F0,0x70F0,
0x7FF0,0x7FF0,0x7FF0,0x0000,
},
// K
{
0x0000,0x780E,0x780E,0x7838,
0x7838,0x79E0,0x79E0,0x7F80,
0x7F80,0x79E0,0x79E0,0x7878,
0x7878,0x781E,0x781E,0x0000,
},
// L
{
0x0000,0x7800,0x7800,0x7800,
0x7800,0x7800,0x7800,0x7800,
0x7800,0x7800,0x7800,0x7800,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// M
{
0x0000,0x781E,0x781E,0x7E7E,
0x7E7E,0x7FFE,0x7FFE,0x799E,
0x799E,0x781E,0x781E,0x781E,
0x781E,0x781E,0x781E,0x0000,
},
// N
{
0x0000,0x781E,0x781E,0x7E1E,
0x7E1E,0x7F9E,0x7F9E,0x7FFE,
0x79FE,0x79FE,0x787E,0x787E,
0x781E,0x781E,0x781E,0x0000,
},
// O
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x781E,0x781E,0x781E,0x781E,
0x781E,0x781E,0x781E,0x781E,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// P
{
0x0000,0x7FF8,0x7FFE,0x7FFE,
0x781E,0x781E,0x781E,0x7FFE,
0x7FF8,0x7FF8,0x7800,0x7800,
0x7800,0x7800,0x7800,0x0000,
},
// Q
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x7006,0x7006,0x7006,0x7006,
0x7006,0x7006,0x70C6,0x70C6,
0x7FF8,0x7FF8,0x001E,0x0000,
},
// R
{
0x0000,0x7FF8,0x7FFE,0x7FFE,
0x781E,0x781E,0x781E,0x7FFE,
0x7FF8,0x7FF8,0x781E,0x781E,
0x781E,0x781E,0x781E,0x0000,
},
// S
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x7800,0x7800,0x7FFE,0x7FFE,
0x7FFE,0x001E,0x001E,0x001E,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// T
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x03C0,0x03C0,0x03C0,0x03C0,
0x03C0,0x03C0,0x03C0,0x03C0,
0x03C0,0x03C0,0x03C0,0x0000,
},
// U
{
0x0000,0x781E,0x781E,0x781E,
0x781E,0x781E,0x781E,0x781E,
0x781E,0x781E,0x781E,0x781E,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// V
{
0x0000,0x781E,0x781E,0x781E,
0x781E,0x781E,0x781E,0x781E,
0x1E78,0x1E78,0x1E78,0x1E78,
0x07E0,0x07E0,0x07E0,0x0000,
},
// W
{
0x0000,0x781E,0x781E,0x781E,
0x781E,0x781E,0x781E,0x799E,
0x799E,0x7FFE,0x7FFE,0x7E7E,
0x7E7E,0x781E,0x781E,0x0000,
},
// X
{
0x0000,0x781E,0x781E,0x781E,
0x1E78,0x1E78,0x07E0,0x07E0,
0x07E0,0x07E0,0x1E78,0x1E78,
0x781E,0x781E,0x781E,0x0000,
},
// Y
{
0x0000,0x781E,0x781E,0x781E,
0x781E,0x781E,0x7E7E,0x7E7E,
0x1FF8,0x1FF8,0x07E0,0x07E0,
0x07E0,0x07E0,0x07E0,0x0000,
},
// Z
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x0078,0x0078,0x01E0,0x01E0,
0x0780,0x0780,0x1E00,0x1E00,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// 1
{
0x0000,0x01E0,0x01E0,0x01E0,
0x01E0,0x01E0,0x01E0,0x01E0,
0x01E0,0x01E0,0x01E0,0x01E0,
0x01E0,0x01E0,0x01E0,0x0000,
},
// 2
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x001E,0x001E,0x7FFE,0x7FFE,
0x7FFE,0x7800,0x7800,0x7800,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// 3
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x001E,0x001E,0x3FFE,0x3FFE,
0x3FFE,0x001E,0x001E,0x001E,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// 4
{
0x0000,0x781E,0x781E,0x781E,
0x781E,0x781E,0x7FFE,0x7FFE,
0x7FFE,0x7FFE,0x001E,0x001E,
0x001E,0x001E,0x001E,0x0000,
},
// 5
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x7800,0x7800,0x7FFE,0x7FFE,
0x7FFE,0x001E,0x001E,0x001E,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// 6
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x7800,0x7800,0x7FFE,0x7FFE,
0x7FFE,0x781E,0x781E,0x781E,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// 7
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x001E,0x001E,0x001E,0x001E,
0x001E,0x001E,0x001E,0x001E,
0x001E,0x001E,0x001E,0x0000,
},
// 8
{
0x0000,0x7FFE,0x7FFE,0x781E,
0x781E,0x781E,0x7FFE,0x7FFE,
0x7FFE,0x781E,0x781E,0x781E,
0x781E,0x7FFE,0x7FFE,0x0000,
},
// 9
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x781E,0x781E,0x781E,0x7FFE,
0x7FFE,0x7FFE,0x001E,0x001E,
0x001E,0x001E,0x001E,0x0000,
},
// 0
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x781E,0x781E,0x799E,0x799E,
0x799E,0x799E,0x781E,0x781E,
0x7FFE,0x7FFE,0x7FFE,0x0000,
},
// :
{
0x0000,0x0000,0x3C00,0x3C00,
0x3C00,0x3C00,0x0000,0x0000,
0x0000,0x0000,0x3C00,0x3C00,
0x3C00,0x3C00,0x0000,0x0000,
},
// !
{
0x0000,0x3C00,0x3C00,0x3C00,
0x3C00,0x3C00,0x3C00,0x3C00,
0x3C00,0x3C00,0x0000,0x0000,
0x3C00,0x3C00,0x3C00,0x0000,
},
// ?
{
0x0000,0x7FFE,0x7FFE,0x7FFE,
0x781E,0x781E,0x79FE,0x79FE,
0x01E0,0x01E0,0x0000,0x0000,
0x01E0,0x01E0,0x01E0,0x0000,
},
// .
{
0x0000,0x0000,0x0000,0x0000,
0x0000,0x0000,0x0000,0x0000,
0x0000,0x0000,0x0000,0x0000,
0x01E0,0x01E0,0x01E0,0x0000,
},
};

21
app/src/macros.h
View File

@ -0,0 +1,21 @@
#pragma once
// Counts the number of elements in an array
#define ARRAY_COUNT(value) ( sizeof(value) / sizeof(value[0]) )
// Swaps the endianness of a 16-bit value
#define SWAP_ENDIAN_16(value) ( (((value) & 0xFFu) << 8u) | ((value) >> 8u) )
// Constructs a 16-bit color value of the form RGB565 with proper ESP32 endianness
#define RGB565(red, green, blue) ( (((red) >> 3u) << 11u) | (((green) >> 2u) << 5u) | ((blue) >> 3u) )
// Converts bytes to bits
#define BYTES_TO_BITS(value) ( (value) * 8 )
// Extracts the upper byte of a 16-bit value
#define UPPER_BYTE_16(value) ( (value) >> 8u )
// Extracts the lower byte of a 16-bit value
#define LOWER_BYTE_16(value) ( (value) & 0xFFu )

274
app/src/main.c
View File

@ -0,0 +1,274 @@
#include "odroid/audio.h"
#include "odroid/battery.h"
#include "odroid/display.h"
#include "odroid/input.h"
#include "odroid/sdcard.h"
#include "macros.h"
#include "text.h"
#include <esp_log.h>
#include <esp_timer.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <string.h>
#define ArraySize(array) sizeof((array)) / sizeof((array)[0])
static const char* LOG_TAG = "Main";
static uint16_t gFramebuffer[LCD_WIDTH * LCD_HEIGHT];
static bool drawBattery = true;
static bool drawTimeSinceBoot = true;
static bool drawFrameRate = true;
/* static const uint16_t lightPalette[4] = */
/* { */
/* 0xFFFF, */
/* 0x55AD, */
/* 0xAA52, */
/* 0x0000, */
/* }; */
static const uint16_t palette[4] =
{
0x0000,
0xAA52,
0x55AD,
0xFFFF,
};
static const uint8_t tiles[][16*16] =
{
// White
{
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
},
// Light Grey
{
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,1,1,1,1,1,1,1,1,1,1,1,1,0,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,
0,0,1,1,1,1,1,1,1,1,1,1,1,1,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
},
// Dark Grey
{
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,2,2,2,2,2,2,2,2,2,2,2,2,0,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,
0,0,2,2,2,2,2,2,2,2,2,2,2,2,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
},
// Black
{
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,3,3,3,3,3,3,3,3,3,3,3,3,0,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,
0,0,3,3,3,3,3,3,3,3,3,3,3,3,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
},
};
static int tileBuffer[15][40] =
{
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0},
{0, 0, 3, 0, 0, 0, 3, 3, 3, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0},
{2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2},
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
};
void DrawTile(int index, int x, int y)
{
int startX = x * 16;
int startY = y * 16;
for (int row = 0; row < 16; ++row)
{
for (int col = 0; col < 16; ++col)
{
uint8_t paletteIndex = tiles[index][row * 16 + col];
int screenY = startY + row;
int screenX = startX + col;
uint16_t color = palette[paletteIndex];
gFramebuffer[screenY * LCD_WIDTH + screenX] = color;
}
}
}
void app_main(void)
{
Odroid_InitializeInput();
Odroid_InitializeDisplay();
/* Odroid_InitializeSdcard(); */
Odroid_InitializeBatteryReader();
/* Odroid_InitializeAudio(); */
ESP_LOGI(LOG_TAG, "Odroid initialization complete - entering main loop");
uint8_t frameIndex = 0;
char snapFilename[20];
int xLeft = 0;
int64_t lastFrameTimeMicroSecs = esp_timer_get_time();
for (;;)
{
memset(gFramebuffer, palette[0], 320*240*2);
Odroid_Input input = Odroid_PollInput();
// Movement
/* if (input.left) */
/* { */
/* xLeft -= 1; */
/* if (xLeft < 0) */
/* { */
/* xLeft = 39; */
/* } */
/* } */
/* else if (input.right) */
/* { */
/* xLeft += 1; */
/* if (xLeft > 39) */
/* { */
/* xLeft = 0; */
/* } */
/* } */
// Tile drawing
/* for (int tileY = 0; tileY < 15; ++tileY) */
/* { */
/* for (int tileX = xLeft; tileX < xLeft + 20; ++tileX) */
/* { */
/* int tile = tileX % 40; */
/* int tileIndex = tileBuffer[tileY][tile]; */
/* DrawTile(tileIndex, tileX - xLeft, tileY); */
/* } */
/* } */
// Battery
if (drawBattery)
{
char string[10];
snprintf(string, ArraySize(string), "B: %02d", Odroid_ReadBatteryLevel());
/* snprintf(string, ArraySize(string), "B: %02d", Odroid_ReadBatteryLevel()); */
DrawText(gFramebuffer, string, ArraySize(string), 0, 0, palette[3]);
}
// Time since boot
if (drawTimeSinceBoot)
{
char string[10];
int64_t timeSinceBoot = esp_timer_get_time();
snprintf(string, ArraySize(string), "%lld", timeSinceBoot);
DrawText(gFramebuffer, string, ArraySize(string), 0, 1, palette[3]);
}
// Frame time
if (drawFrameRate)
{
char string[10];
int64_t currentTimeMicroSecs = esp_timer_get_time();
int64_t frameTimeMicroSecs = currentTimeMicroSecs - lastFrameTimeMicroSecs;
snprintf(string, ArraySize(string), "%.2f HZ", 1000000.f / frameTimeMicroSecs);
DrawText(gFramebuffer, string, ArraySize(string), 12, 0, palette[3]);
lastFrameTimeMicroSecs = currentTimeMicroSecs;
}
// Save screenshots for making gifs
/* if (input.menu) */
/* { */
/* snprintf(snapFilename, 20, "/sdcard/frame%02d", frameIndex); */
/* ESP_LOGI(LOG_TAG, "Writing snapshot to %s", snapFilename); */
/* FILE* snapFile = fopen(snapFilename, "wb"); */
/* assert(snapFile); */
/* fwrite(gFramebuffer, 1, LCD_WIDTH * LCD_HEIGHT * sizeof(gFramebuffer[0]), snapFile); */
/* fclose(snapFile); */
/* ++frameIndex; */
/* } */
Odroid_DrawFrame(gFramebuffer);
}
// Should never get here
esp_restart();
}

85
app/src/odroid/audio.c
View File

@ -0,0 +1,85 @@
#include "audio.h"
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <driver/i2s.h>
static const gpio_num_t AUDIO_AMP_SD_PIN = GPIO_NUM_25;
static QueueHandle_t gQueue;
typedef struct
{
uint16_t* buffer;
int length;
} QueueData;
static void PlayTask(void *arg)
{
for(;;)
{
QueueData data;
if (xQueueReceive(gQueue, &data, 10))
{
size_t bytesWritten;
i2s_write(I2S_NUM_0, data.buffer, data.length, &bytesWritten, portMAX_DELAY);
i2s_zero_dma_buffer(I2S_NUM_0);
}
vTaskDelay(1 / portTICK_PERIOD_MS);
}
}
void Odroid_InitializeAudio(void)
{
// Configure the amplifier shutdown signal
{
gpio_config_t gpioConfig = {};
gpioConfig.mode = GPIO_MODE_OUTPUT;
gpioConfig.pin_bit_mask = 1ULL << AUDIO_AMP_SD_PIN;
ESP_ERROR_CHECK(gpio_config(&gpioConfig));
gpio_set_level(AUDIO_AMP_SD_PIN, 1);
}
// Configure the I2S driver
{
i2s_config_t i2sConfig= {};
i2sConfig.mode = I2S_MODE_MASTER | I2S_MODE_TX | I2S_MODE_DAC_BUILT_IN;
i2sConfig.sample_rate = 5512;
i2sConfig.bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT;
i2sConfig.communication_format = I2S_COMM_FORMAT_I2S_MSB;
i2sConfig.channel_format = I2S_CHANNEL_FMT_ONLY_LEFT;
i2sConfig.dma_buf_count = 8;
i2sConfig.dma_buf_len = 64;
ESP_ERROR_CHECK(i2s_driver_install(I2S_NUM_0, &i2sConfig, 0, NULL));
ESP_ERROR_CHECK(i2s_set_dac_mode(I2S_DAC_CHANNEL_LEFT_EN));
}
// Create task for playing sounds so that our main task isn't blocked
{
gQueue = xQueueCreate(1, sizeof(QueueData));
assert(gQueue);
BaseType_t result = xTaskCreatePinnedToCore(&PlayTask, "I2S Task", 1024, NULL, 5, NULL, 1);
assert(result == pdPASS);
}
}
void Odroid_PlayAudio(uint16_t* buffer, int length)
{
QueueData data = {};
data.buffer = buffer;
data.length = length;
xQueueSendToBack(gQueue, &data, portMAX_DELAY);
}

8
app/src/odroid/audio.h
View File

@ -0,0 +1,8 @@
#pragma once
#include <stdint.h>
void Odroid_InitializeAudio(void);
void Odroid_PlayAudio(uint16_t* buffer, int length);

73
app/src/odroid/battery.c
View File

@ -0,0 +1,73 @@
#include "battery.h"
#include <driver/adc.h>
#include <esp_adc_cal.h>
#include <esp_log.h>
#include <soc/adc_channel.h>
static const char* LOG_TAG = "OdroidBattery";
static const adc1_channel_t BATTERY_READ_PIN = ADC1_GPIO36_CHANNEL;
static const gpio_num_t BATTERY_LED_PIN = GPIO_NUM_2;
static esp_adc_cal_characteristics_t gCharacteristics;
void Odroid_InitializeBatteryReader()
{
// Configure LED
{
gpio_config_t gpioConfig = {};
gpioConfig.mode = GPIO_MODE_OUTPUT;
gpioConfig.pin_bit_mask = 1ULL << BATTERY_LED_PIN;
ESP_ERROR_CHECK(gpio_config(&gpioConfig));
}
// Configure ADC
{
adc1_config_width(ADC_WIDTH_BIT_12);
adc1_config_channel_atten(BATTERY_READ_PIN, ADC_ATTEN_DB_11);
adc1_config_channel_atten(BATTERY_READ_PIN, ADC_ATTEN_DB_11);
esp_adc_cal_value_t type = esp_adc_cal_characterize(
ADC_UNIT_1, ADC_ATTEN_DB_11, ADC_WIDTH_BIT_12, 1100, &gCharacteristics);
// The ESP32 in the Odroid Go should have its fuse set with a pre-calibrated vref
assert(type == ESP_ADC_CAL_VAL_EFUSE_VREF);
}
ESP_LOGI(LOG_TAG, "Battery reader initialized");
}
uint32_t Odroid_ReadBatteryLevel(void)
{
const int SAMPLE_COUNT = 20;
uint32_t raw = 0;
for (int sampleIndex = 0; sampleIndex < SAMPLE_COUNT; ++sampleIndex)
{
raw += adc1_get_raw(BATTERY_READ_PIN);
}
raw /= SAMPLE_COUNT;
// Voltage divider reports half actual voltage
uint32_t voltage = 2 * esp_adc_cal_raw_to_voltage(raw, &gCharacteristics);
return voltage;
}
void Odroid_EnableBatteryLight(void)
{
gpio_set_level(BATTERY_LED_PIN, 1);
}
void Odroid_DisableBatteryLight(void)
{
gpio_set_level(BATTERY_LED_PIN, 0);
}

10
app/src/odroid/battery.h
View File

@ -0,0 +1,10 @@
#pragma once
#include <stdint.h>
void Odroid_InitializeBatteryReader(void);
uint32_t Odroid_ReadBatteryLevel(void);
void Odroid_EnableBatteryLight(void);
void Odroid_DisableBatteryLight(void);

184
app/src/odroid/display.c
View File

@ -0,0 +1,184 @@
#include "display.h"
#include "macros.h"
#include <driver/gpio.h>
#include <driver/spi_master.h>
#include <esp_log.h>
static const char* LOG_TAG = "OdroidDisplay";
static const gpio_num_t LCD_PIN_MISO = GPIO_NUM_19;
static const gpio_num_t LCD_PIN_MOSI = GPIO_NUM_23;
static const gpio_num_t LCD_PIN_SCLK = GPIO_NUM_18;
static const gpio_num_t LCD_PIN_CS = GPIO_NUM_5;
static const gpio_num_t LCD_PIN_DC = GPIO_NUM_21;
static const gpio_num_t LCD_PIN_BACKLIGHT = GPIO_NUM_14;
typedef enum
{
SOFTWARE_RESET = 0x01u,
SLEEP_OUT = 0x11u,
DISPLAY_ON = 0x29u,
COLUMN_ADDRESS_SET = 0x2Au,
PAGE_ADDRESS_SET = 0x2Bu,
MEMORY_WRITE = 0x2Cu,
MEMORY_ACCESS_CONTROL = 0x36u,
PIXEL_FORMAT_SET = 0x3Au,
} CommandCode;
typedef struct
{
CommandCode code;
uint8_t parameters[15];
uint8_t length;
} StartupCommand;
static spi_device_handle_t gSpiHandle;
static StartupCommand gStartupCommands[] =
{
// Reset to defaults
{
SOFTWARE_RESET,
{},
0
},
// Landscape Mode
// Top-Left Origin
// BGR Panel
{
MEMORY_ACCESS_CONTROL,
{0x20 | 0xC0 | 0x08},
1
},
// 16 bits per pixel
{
PIXEL_FORMAT_SET,
{0x55},
1
},
// Exit sleep mode
{
SLEEP_OUT,
{},
0
},
// Turn on the display
{
DISPLAY_ON,
{},
0
},
};
static
void SendCommandCode(CommandCode code)
{
spi_transaction_t transaction = {};
transaction.length = BYTES_TO_BITS(1);
transaction.tx_data[0] = (uint8_t)code;
transaction.flags = SPI_TRANS_USE_TXDATA;
gpio_set_level(LCD_PIN_DC, 0);
spi_device_transmit(gSpiHandle, &transaction);
}
static
void SendCommandParameters(uint8_t* data, int length)
{
spi_transaction_t transaction = {};
transaction.length = BYTES_TO_BITS(length);
transaction.tx_buffer = data;
transaction.flags = 0;
gpio_set_level(LCD_PIN_DC, 1);
spi_device_transmit(gSpiHandle, &transaction);
}
void Odroid_InitializeDisplay(void)
{
// Initialize the SPI bus
{
spi_bus_config_t spiBusConfig = {};
spiBusConfig.miso_io_num = LCD_PIN_MISO;
spiBusConfig.mosi_io_num = LCD_PIN_MOSI;
spiBusConfig.sclk_io_num = LCD_PIN_SCLK;
spiBusConfig.quadwp_io_num = -1;
spiBusConfig.quadhd_io_num = -1;
spiBusConfig.max_transfer_sz = LCD_WIDTH * LCD_HEIGHT * LCD_DEPTH;
ESP_ERROR_CHECK(spi_bus_initialize(VSPI_HOST, &spiBusConfig, 1));
ESP_LOGI(LOG_TAG, "Initialized SPI Bus");
}
// Add the display device to the SPI bus
{
spi_device_interface_config_t spiDeviceConfig = {};
spiDeviceConfig.clock_speed_hz = SPI_MASTER_FREQ_40M;
spiDeviceConfig.spics_io_num = LCD_PIN_CS;
spiDeviceConfig.queue_size = 1;
spiDeviceConfig.flags = SPI_DEVICE_NO_DUMMY;
ESP_ERROR_CHECK(spi_bus_add_device(VSPI_HOST, &spiDeviceConfig, &gSpiHandle));
ESP_LOGI(LOG_TAG, "Added display to SPI bus");
}
// Set the DC and backlight pins as outputs
{
gpio_set_direction(LCD_PIN_DC, GPIO_MODE_OUTPUT);
gpio_set_direction(LCD_PIN_BACKLIGHT, GPIO_MODE_OUTPUT);
}
// Send the initialization commands to the display
{
int commandCount = ARRAY_COUNT(gStartupCommands);
for (int commandIndex = 0; commandIndex < commandCount; ++commandIndex)
{
StartupCommand* command = &gStartupCommands[commandIndex];
SendCommandCode(command->code);
if (command->length > 0)
{
SendCommandParameters(command->parameters, command->length);
}
}
ESP_LOGI(LOG_TAG, "Initialized display");
}
}
void Odroid_DrawFrame(uint16_t* buffer)
{
// Set drawing window width to (0, LCD_WIDTH)
uint8_t drawWidth[] = { 0, 0, UPPER_BYTE_16(LCD_WIDTH), LOWER_BYTE_16(LCD_WIDTH) };
SendCommandCode(COLUMN_ADDRESS_SET);
SendCommandParameters(drawWidth, ARRAY_COUNT(drawWidth));
// Set drawing window height to (0, LCD_HEIGHT)
uint8_t drawHeight[] = { 0, 0, UPPER_BYTE_16(LCD_HEIGHT), LOWER_BYTE_16(LCD_HEIGHT) };
SendCommandCode(PAGE_ADDRESS_SET);
SendCommandParameters(drawHeight, ARRAY_COUNT(drawHeight));
// Send the buffer to the display
SendCommandCode(MEMORY_WRITE);
SendCommandParameters((uint8_t*)buffer, LCD_WIDTH * LCD_HEIGHT * LCD_DEPTH);
}

13
app/src/odroid/display.h
View File

@ -0,0 +1,13 @@
#pragma once
#include <stdint.h>
#define LCD_WIDTH (320)
#define LCD_HEIGHT (240)
#define LCD_DEPTH (2)
void Odroid_InitializeDisplay(void);
void Odroid_DrawFrame(uint16_t* buffer);

99
app/src/odroid/input.c
View File

@ -0,0 +1,99 @@
#include "input.h"
#include <driver/adc.h>
#include <driver/gpio.h>
#include <esp_log.h>
#include <soc/adc_channel.h>
static const char* LOG_TAG = "OdroidInput";
static const gpio_num_t BUTTON_PIN_A = GPIO_NUM_32;
static const gpio_num_t BUTTON_PIN_B = GPIO_NUM_33;
static const gpio_num_t BUTTON_PIN_START = GPIO_NUM_39;
static const gpio_num_t BUTTON_PIN_SELECT = GPIO_NUM_27;
static const gpio_num_t BUTTON_PIN_VOLUME = GPIO_NUM_0;
static const gpio_num_t BUTTON_PIN_MENU = GPIO_NUM_13;
static const adc1_channel_t DPAD_PIN_X_AXIS = ADC1_GPIO34_CHANNEL;
static const adc1_channel_t DPAD_PIN_Y_AXIS = ADC1_GPIO35_CHANNEL;
void Odroid_InitializeInput()
{
// Configure digital buttons
{
gpio_config_t gpioConfig = {};
gpioConfig.mode = GPIO_MODE_INPUT;
gpioConfig.pull_up_en = GPIO_PULLUP_ENABLE;
gpioConfig.pin_bit_mask =
(1ULL << BUTTON_PIN_A)
| (1ULL << BUTTON_PIN_B)
| (1ULL << BUTTON_PIN_START)
| (1ULL << BUTTON_PIN_SELECT)
| (1ULL << BUTTON_PIN_VOLUME)
| (1ULL << BUTTON_PIN_MENU);
ESP_ERROR_CHECK(gpio_config(&gpioConfig));
ESP_LOGI(LOG_TAG, "Buttons initialized");
}
// Configure analog d-pad
{
ESP_ERROR_CHECK(adc1_config_width(ADC_WIDTH_BIT_12));
ESP_ERROR_CHECK(adc1_config_channel_atten(DPAD_PIN_X_AXIS,ADC_ATTEN_DB_11));
ESP_ERROR_CHECK(adc1_config_channel_atten(DPAD_PIN_Y_AXIS,ADC_ATTEN_DB_11));
ESP_LOGI(LOG_TAG, "D-pad initialized");
}
}
Odroid_Input Odroid_PollInput(void)
{
Odroid_Input input = {};
const uint32_t ADC_HIGH_LEVEL = 3072; // 75% of 12-bit (4096) range
const uint32_t ADC_LOW_LEVEL = 1024; // 25% of 12-bit (4096) range
{
uint32_t dpadX = adc1_get_raw(DPAD_PIN_X_AXIS);
if (dpadX > ADC_HIGH_LEVEL)
{
input.left = 1;
}
else if (dpadX > ADC_LOW_LEVEL)
{
input.right = 1;
}
}
{
uint32_t dpadY = adc1_get_raw(DPAD_PIN_Y_AXIS);
if (dpadY > ADC_HIGH_LEVEL)
{
input.up = 1;
}
else if (dpadY > ADC_LOW_LEVEL)
{
input.down = 1;
}
}
// Buttons are pulled up so must invert
input.a = !gpio_get_level(BUTTON_PIN_A);
input.b = !gpio_get_level(BUTTON_PIN_B);
input.select = !gpio_get_level(BUTTON_PIN_SELECT);
input.start = !gpio_get_level(BUTTON_PIN_START);
input.menu = !gpio_get_level(BUTTON_PIN_MENU);
input.volume = !gpio_get_level(BUTTON_PIN_VOLUME);
return input;
}

22
app/src/odroid/input.h
View File

@ -0,0 +1,22 @@
#pragma once
#include <stdint.h>
typedef struct
{
uint16_t a : 1;
uint16_t b : 1;
uint16_t volume : 1;
uint16_t menu : 1;
uint16_t select : 1;
uint16_t start : 1;
uint16_t left : 1;
uint16_t right : 1;
uint16_t up : 1;
uint16_t down : 1;
} Odroid_Input;
void Odroid_InitializeInput(void);
Odroid_Input Odroid_PollInput(void);

33
app/src/odroid/sdcard.c
View File

@ -0,0 +1,33 @@
#include "sdcard.h"
#include <esp_vfs_fat.h>
#include <driver/sdmmc_host.h>
#include <driver/sdspi_host.h>
#include <sdmmc_cmd.h>
static const gpio_num_t SD_PIN_MISO = GPIO_NUM_19;
static const gpio_num_t SD_PIN_MOSI = GPIO_NUM_23;
static const gpio_num_t SD_PIN_SCLK = GPIO_NUM_18;
static const gpio_num_t SD_PIN_CS = GPIO_NUM_22;
void Odroid_InitializeSdcard()
{
sdmmc_host_t host = SDSPI_HOST_DEFAULT();
host.slot = VSPI_HOST;
sdspi_slot_config_t slot_config = SDSPI_SLOT_CONFIG_DEFAULT();
slot_config.gpio_miso = SD_PIN_MISO;
slot_config.gpio_mosi = SD_PIN_MOSI;
slot_config.gpio_sck = SD_PIN_SCLK;
slot_config.gpio_cs = SD_PIN_CS;
esp_vfs_fat_sdmmc_mount_config_t mount_config = {};
mount_config.format_if_mount_failed = false;
mount_config.max_files = 5;
sdmmc_card_t* card;
ESP_ERROR_CHECK(esp_vfs_fat_sdmmc_mount("/sdcard", &host, &slot_config, &mount_config, &card));
}

5
app/src/odroid/sdcard.h
View File

@ -0,0 +1,5 @@
#pragma once
void Odroid_InitializeSdcard(void);

50
app/src/text.c
View File

@ -0,0 +1,50 @@
#include "font.h"
#include "odroid/display.h"
#include "text.h"
static const int MAX_GLYPHS_PER_ROW = LCD_WIDTH / GLYPH_WIDTH;
static const int MAX_GLYPHS_PER_COL = LCD_HEIGHT / GLYPH_HEIGHT;
void DrawText(uint16_t* framebuffer, char* string, int length, int x, int y, uint16_t color)
{
assert(y <= MAX_GLYPHS_PER_COL);
for (int charIndex = 0; charIndex < length; ++charIndex)
{
/* assert(x + charIndex <= MAX_GLYPHS_PER_ROW); */
if (x + charIndex > MAX_GLYPHS_PER_ROW)
break;
char c = string[charIndex];
if (c == '\0')
break;
if (c == ' ')
{
continue;
}
int xStart = GLYPH_WIDTH * (x + charIndex);
int yStart = GLYPH_HEIGHT * y;
for (int row = 0; row < GLYPH_HEIGHT; ++row)
{
for (int col = 0; col < GLYPH_WIDTH; ++col)
{
int bitPosition = 1U << (15U - col);
int glyphIndex = GetGlyphIndex(c);
uint16_t pixel = glyphMap[glyphIndex][row] & bitPosition;
if (pixel)
{
int screenX = xStart + col;
int screenY = yStart + row;
framebuffer[screenY * LCD_WIDTH + screenX] = color;
}
}
}
}
}

3
app/src/text.h
View File

@ -0,0 +1,3 @@
void DrawText(uint16_t* framebuffer, char* string, int length, int tileX, int tileY, uint16_t color);
Write Preview
Loading…
Cancel
Save