I don't know how to add a PWM flicker function in this existing code. I tried adding the examples code in multiple spots but just get different errors depending where its at. I ran the examples code and confirmed my target PIN of 25 to work just fine Thanks for any help. Im new to this
Im using an RP2040 Feather
// SPDX-FileCopyrightText: 2022 Limor Fried for Adafruit Industries
//
// SPDX-License-Identifier: MIT
#include <AnimatedGIF.h>
#include <SdFat.h>
#include <Adafruit_SPIFlash.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ST7735.h> // Hardware-specific library for ST7735
#include <Adafruit_ST7789.h> // Hardware-specific library for ST7789
#define TFT_CS 7
#define TFT_DC 8
#define TFT_RST 9
#define DISPLAY_WIDTH 240
#define DISPLAY_HEIGHT 135
#define GIFDIRNAME "/"
#define NUM_LOOPS 5
#if defined(ARDUINO_ARCH_ESP32)
// ESP32 use same flash device that store code.
// Therefore there is no need to specify the SPI and SS
Adafruit_FlashTransport_ESP32 flashTransport;
#elif defined(ARDUINO_ARCH_RP2040)
// RP2040 use same flash device that store code for file system. Therefore we
// only need to specify start address and size (no need SPI or SS)
// By default (start=0, size=0), values that match file system setting in
// 'Tools->Flash Size' menu selection will be used.
// Adafruit_FlashTransport_RP2040 flashTransport;
// To be compatible with CircuitPython partition scheme (start_address = 1 MB,
// size = total flash - 1 MB) use const value (CPY_START_ADDR, CPY_SIZE) or
// subclass Adafruit_FlashTransport_RP2040_CPY. Un-comment either of the
// following line:
// Adafruit_FlashTransport_RP2040
// flashTransport(Adafruit_FlashTransport_RP2040::CPY_START_ADDR,
// Adafruit_FlashTransport_RP2040::CPY_SIZE);
Adafruit_FlashTransport_RP2040_CPY flashTransport;
#else
// On-board external flash (QSPI or SPI) macros should already
// defined in your board variant if supported
// - EXTERNAL_FLASH_USE_QSPI
// - EXTERNAL_FLASH_USE_CS/EXTERNAL_FLASH_USE_SPI
#if defined(EXTERNAL_FLASH_USE_QSPI)
Adafruit_FlashTransport_QSPI flashTransport;
#elif defined(EXTERNAL_FLASH_USE_SPI)
Adafruit_FlashTransport_SPI flashTransport(EXTERNAL_FLASH_USE_CS, EXTERNAL_FLASH_USE_SPI);
#else
#error No QSPI/SPI flash are defined on your board variant.h !
#endif
#endif
Adafruit_SPIFlash flash(&flashTransport);
// file system object from SdFat
FatFileSystem fatfs;
Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST);
AnimatedGIF gif;
File32 f, root;
void * GIFOpenFile(const char *fname, int32_t *pSize)
{
f = fatfs.open(fname);
if (f)
{
*pSize = f.size();
return (void *)&f;
}
return NULL;
} /* GIFOpenFile() */
void GIFCloseFile(void *pHandle)
{
File32 *f = static_cast<File32 *>(pHandle);
if (f != NULL)
f->close();
} /* GIFCloseFile() */
int32_t GIFReadFile(GIFFILE *pFile, uint8_t *pBuf, int32_t iLen)
{
int32_t iBytesRead;
iBytesRead = iLen;
File32 *f = static_cast<File32 *>(pFile->fHandle);
// Note: If you read a file all the way to the last byte, seek() stops working
if ((pFile->iSize - pFile->iPos) < iLen)
iBytesRead = pFile->iSize - pFile->iPos - 1; // <-- ugly work-around
if (iBytesRead <= 0)
return 0;
iBytesRead = (int32_t)f->read(pBuf, iBytesRead);
pFile->iPos = f->position();
return iBytesRead;
} /* GIFReadFile() */
int32_t GIFSeekFile(GIFFILE *pFile, int32_t iPosition)
{
int i = micros();
File32 *f = static_cast<File32 *>(pFile->fHandle);
f->seek(iPosition);
pFile->iPos = (int32_t)f->position();
i = micros() - i;
// Serial.printf("Seek time = %d us\n", i);
return pFile->iPos;
} /* GIFSeekFile() */
// Draw a line of image directly on the LCD
void GIFDraw(GIFDRAW *pDraw)
{
uint8_t *s;
uint16_t *d, *usPalette, usTemp[320];
int x, y, iWidth;
iWidth = pDraw->iWidth;
// Serial.printf("Drawing %d pixels\n", iWidth);
if (iWidth + pDraw->iX > DISPLAY_WIDTH)
iWidth = DISPLAY_WIDTH - pDraw->iX;
usPalette = pDraw->pPalette;
y = pDraw->iY + pDraw->y; // current line
if (y >= DISPLAY_HEIGHT || pDraw->iX >= DISPLAY_WIDTH || iWidth < 1)
return;
s = pDraw->pPixels;
if (pDraw->ucDisposalMethod == 2) // restore to background color
{
for (x=0; x<iWidth; x++)
{
if (s[x] == pDraw->ucTransparent)
s[x] = pDraw->ucBackground;
}
pDraw->ucHasTransparency = 0;
}
// Apply the new pixels to the main image
if (pDraw->ucHasTransparency) // if transparency used
{
uint8_t *pEnd, c, ucTransparent = pDraw->ucTransparent;
int x, iCount;
pEnd = s + iWidth;
x = 0;
iCount = 0; // count non-transparent pixels
while(x < iWidth)
{
c = ucTransparent-1;
d = usTemp;
while (c != ucTransparent && s < pEnd)
{
c = *s++;
if (c == ucTransparent) // done, stop
{
s--; // back up to treat it like transparent
}
else // opaque
{
*d++ = usPalette[c];
iCount++;
}
} // while looking for opaque pixels
if (iCount) // any opaque pixels?
{
tft.startWrite();
tft.setAddrWindow(pDraw->iX+x, y, iCount, 1);
tft.writePixels(usTemp, iCount, false, false);
tft.endWrite();
x += iCount;
iCount = 0;
}
// no, look for a run of transparent pixels
c = ucTransparent;
while (c == ucTransparent && s < pEnd)
{
c = *s++;
if (c == ucTransparent)
iCount++;
else
s--;
}
if (iCount)
{
x += iCount; // skip these
iCount = 0;
}
}
}
else
{
s = pDraw->pPixels;
// Translate the 8-bit pixels through the RGB565 palette (already byte reversed)
for (x=0; x<iWidth; x++)
usTemp[x] = usPalette[*s++];
tft.startWrite();
tft.setAddrWindow(pDraw->iX, y, iWidth, 1);
tft.writePixels(usTemp, iWidth, false, false);
tft.endWrite();
}
} /* GIFDraw() */
void setup() {
Serial.begin(115200);
Serial.println("Adafruit SPIFlash Animated GIF Example");
// Initialize flash library and check its chip ID.
if (!flash.begin()) {
Serial.println("Error, failed to initialize flash chip!");
while(1);
}
Serial.print("Flash chip JEDEC ID: 0x"); Serial.println(flash.getJEDECID(), HEX);
// First call begin to mount the filesystem. Check that it returns true
// to make sure the filesystem was mounted.
if (!fatfs.begin(&flash)) {
Serial.println("Failed to mount filesystem!");
Serial.println("Was CircuitPython loaded on the board first to create the filesystem?");
while(1);
}
Serial.println("Mounted filesystem!");
if (!root.open(GIFDIRNAME)) {
Serial.println("Open dir failed");
}
while (f.openNext(&root, O_RDONLY)) {
f.printFileSize(&Serial);
Serial.write(' ');
f.printModifyDateTime(&Serial);
Serial.write(' ');
f.printName(&Serial);
if (f.isDir()) {
// Indicate a directory.
Serial.write('/');
}
Serial.println();
f.close();
}
root.close();
tft.init(DISPLAY_HEIGHT, DISPLAY_WIDTH);
tft.fillScreen(ST77XX_BLACK);
tft.setRotation(-45);
gif.begin(LITTLE_ENDIAN_PIXELS);
}
void loop() {
char thefilename[80];
if (!root.open(GIFDIRNAME)) {
Serial.println("Open GIF directory failed");
while (1);
}
while (f.openNext(&root, O_RDONLY)) {
f.printFileSize(&Serial);
Serial.write(' ');
f.printModifyDateTime(&Serial);
Serial.write(' ');
f.printName(&Serial);
if (f.isDir()) {
// Indicate a directory.
Serial.write('/');
}
Serial.println();
f.getName(thefilename, sizeof(thefilename)-1);
f.close();
if (strstr(thefilename, ".gif") || strstr(thefilename, ".GIF")) {
// found a gif mebe!
if (gif.open(thefilename, GIFOpenFile, GIFCloseFile, GIFReadFile, GIFSeekFile, GIFDraw)) {
GIFINFO gi;
Serial.printf("Successfully opened GIF %s; Canvas size = %d x %d\n", thefilename, gif.getCanvasWidth(), gif.getCanvasHeight());
if (gif.getInfo(&gi)) {
Serial.printf("frame count: %d\n", gi.iFrameCount);
Serial.printf("duration: %d ms\n", gi.iDuration);
Serial.printf("max delay: %d ms\n", gi.iMaxDelay);
Serial.printf("min delay: %d ms\n", gi.iMinDelay);
}
// play thru n times
for (int loops=0; loops<NUM_LOOPS; loops++) {
while (gif.playFrame(true, NULL));
gif.reset();
}
gif.close();
} else {
Serial.printf("Error opening file %s = %d\n", thefilename, gif.getLastError());
}
}
}
root.close();
}
