robomaster/developmentboard-examples

developmentboard-examples's Issues

There's a bug in OLED driver oled.c in function oled_printf

/**

• @brief formatted output in oled 128*64
• @param row: row of character string begin, 0 <= row <= 4;
• @param col: column of character string begin, 0 <= col <= 20;
• @param *fmt: the pointer to format character string
• @RetVal None
• @note if the character length is more than one row at a time, the extra characters will be truncated
  */
  void oled_printf(uint8_t row, uint8_t col, const char *fmt,...)
  {
  uint8_t LCD_BUF[128] = {0};
  uint8_t remain_size = 0;
  va_list ap;
  if ((row > 4) || (row < 1) || (col > 20) || (col < 1)) /*should be: if ( (row > 4) || (col > 20) ) */
  return;
  va_start(ap, fmt);
  vsprintf((char *)LCD_BUF, fmt, ap);
  va_end(ap);
  remain_size = 21 - col;
  LCD_BUF[remain_size] = '\0';
  oled_showstring(row, col, LCD_BUF);
  }
  if ((row > 4) || (row < 1) || (col > 20) || (col < 1))
  I think it should be : if ( (row > 4) || (col > 20) )

question

使用UWB的例子，得到的数据为0

How to use the button

I can see the OLED display, but how to use the button and joystick? Thx

IMU sprintf() not showing the message

Dear the dev team,

Where can I see the following message on the main.c in IMU?
sprintf(buf, " Roll: %8.3lf Pitch: %8.3lf Yaw: %8.3lf\n", imu.rol, imu.pit, imu.yaw);

I tried to include 'stdio.h', and looked for the Debug (printf) Viewer, but none of each worked.

Boot 0/1 button

Is there an accessible boot pin for flashing?

Any readme file for how to use the USB demo?

How to use the USB demo?
After downloading the demo to the board, if I connect the board with the PC with a USB cable, should the device be recognized as a Serial Port according to the readme of the repository?

What is the frequency of crystal oscillator of type A development board