Hi, nengyu!
That option seems unlikely for my case, as long as I have uploaded other three different example programs on my XIAO ESP-C3, and the other ones upload and execute correctly. That’s why I tend to think my Arduino Studio board configuration for upload is right. By the way, this is my configuration:
Board:XIAO_ESP32C3
Upload Speed: 921600 (I have also tried with slower speeds)
USB CDC On Boot: Enabled
CPU Frequency: 160 MHz (Wifi) (I have also tried with slower frequencies)
Flash Frequenxy: 80 MHz (I have also tried with slower frequencies)
Flash Mode QIO (I have also tried with the rest of options)
Flash Size: 4 MB (32 Mb)
Partition Scheme: Default 4 MB with spiffs (1,2MB APP/1.5MB SPIFFS)
Core Debug Level: None
Erase All Flash Before Sketch Upload: Disabled
Port: /dev/ttyACM0 (ESP32S3 Dev Module)
Do you think it is possible that some programs upload correctly and others not?
And this is one of the simple NeoPixel programs I tried to upload but failed… As you see, it is quite simple:
// NeoPixel Ring simple sketch (c) 2013 Shae Erisson
// Released under the GPLv3 license to match the rest of the
// Adafruit NeoPixel library
#include <Adafruit_NeoPixel.h>
#ifdef AVR
#include <avr/power.h> // Required for 16 MHz Adafruit Trinket
#endif
// Which pin on the Arduino is connected to the NeoPixels?
#define PIN 10 // On Trinket or Gemma, suggest changing this to 1
// How many NeoPixels are attached to the Arduino?
#define NUMPIXELS 16 // Popular NeoPixel ring size
// When setting up the NeoPixel library, we tell it how many pixels,
// and which pin to use to send signals. Note that for older NeoPixel
// strips you might need to change the third parameter – see the
// strandtest example for more information on possible values.
Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
#define DELAYVAL 500 // Time (in milliseconds) to pause between pixels
void setup() {
// These lines are specifically to support the Adafruit Trinket 5V 16 MHz.
// Any other board, you can remove this part (but no harm leaving it):
#if defined(AVR_ATtiny85) && (F_CPU == 16000000)
clock_prescale_set(clock_div_1);
#endif
// END of Trinket-specific code.
pixels.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
}
void loop() {
pixels.clear(); // Set all pixel colors to ‘off’
// The first NeoPixel in a strand is #0, second is 1, all the way up
// to the count of pixels minus one.
for(int i=0; i<NUMPIXELS; i++) { // For each pixel…
// pixels.Color() takes RGB values, from 0,0,0 up to 255,255,255
// Here we're using a moderately bright green color:
pixels.setPixelColor(i, pixels.Color(0, 150, 0));
pixels.show(); // Send the updated pixel colors to the hardware.
delay(DELAYVAL); // Pause before next pass through loop
}
}
Thanks!
