Char 数组的问题，如何正确构造和显示它们

对于我正在共同设计的产品，我想在LCD屏幕上显示位图图标。受本教程等启发，我创建了一个单独的 C 文件，其中包含我尝试显示的图标的字节数组。

当我尝试直接显示图标时，它似乎有效。但是当我试图间接地做到这一点时——这最终会是不可避免的——它失败了。

真正让我感到困惑和我试图理解的是; 当我将垃圾图标(CHAR ARRAY(的数组打印到串行监视器并将其与字节数组进行比较时，它应该正确表示它们匹配。 但是当我对正确显示的图像(ICON ARRAY(执行相同的操作时，我打印到串行监视器的内容与它显示的字节数组不匹配，我打印的信息甚至不一致......这怎么可能？！

我已经为此绞尽脑汁了一个星期，所以任何帮助将不胜感激。

主文件：

// --------------------------------------------------------------------------------------
// |   This program is made for an arduino mega 2560 used in conjunction with the       |
// |           (chinese) OPEN-SMART 3.2 inch TFT LCD Shield ILI9327                     |
// | This version of the program is a slimmed down one to clearly convey the problem    |
// |           I am currenlty having drawing pictures on this setup                     |
// --------------------------------------------------------------------------------------
// This program is based on the library obtained from
// https://drive.google.com/open?id=0B6uNNXJ2z4CxYktCQlViUkI1Sms
// There is also a demo available on YouTube
// https://www.youtube.com/watch?v=JQHGYnKeC0M&t=2s
#include <Adafruit_GFX.h>    // Core graphics library
#include <MCUFRIEND_kbv.h>
MCUFRIEND_kbv tft;
// -------------------------------------------------------------------------------------
// |                            Variable declaration                                   |
// -------------------------------------------------------------------------------------
// Set colors
#define BLACK            0x0000
#define BACKGROUND       0x07FF
// No idea with this does tbh
uint16_t g_identifier;
// Spacing variables
uint8_t   cube_size = 75;
uint8_t   padding = 3;
uint8_t     ix1 = 5+2 * padding;
uint8_t     ix2 = 5+3 * padding + cube_size;
uint8_t     ix3 = 5+4 * padding + 2 * cube_size;
uint8_t     ix4 = 5+5 * padding + 3 * cube_size;
uint16_t    ix5 = 5+(6 * padding) + 4 * cube_size;
uint8_t     iy1 = 5+1 * padding;
uint8_t     iy2 = 5+3 * padding + cube_size;
uint8_t     iy3 = 5+4 * padding + 2 * cube_size;
//Progmem Icon init
extern uint8_t icon_from_progmem[];
// -------------------------------------------------------------------------------------
// |                                  Functions                                        |
// -------------------------------------------------------------------------------------
// Standard drawbitmap function
void drawBitmap(int16_t x, int16_t y,  const uint8_t bitmap[], int16_t w, int16_t h, uint16_t color) {
int16_t byteWidth = (w + 7) / 8; // Bitmap scanline pad = whole byte
uint8_t byte = 0;
for (int16_t j = 0; j < h; j++, y++) {
for (int16_t i = 0; i < w; i++) {
if (i & 7) byte <<= 1;
else      byte   = pgm_read_byte(&bitmap[j * byteWidth + i / 8]);
if (byte & 0x80) tft.drawPixel(x + i, y, color);
}
}
}
// -------------------------------------------------------------------------------------
// |                                   Setup                                           |
// -------------------------------------------------------------------------------------
// I just copied this part to get the screen to work
void setup(void) {
Serial.begin(9600);
Serial.println(F("TFT LCD test"));
//    tft.reset();                 //we can't read ID on 9341 until begin()
g_identifier = tft.readID(); //
Serial.print("ID = 0x");
Serial.println(g_identifier, HEX);
if (g_identifier == 0x00D3 || g_identifier == 0xD3D3) g_identifier = 0x9481; // write-only shield
if (g_identifier == 0xFFFF) g_identifier = 0x9341; // serial
//    g_identifier = 0x9329;                             // force ID

tft.begin(g_identifier); //to enable ILI9327 driver code
tft.setRotation(3);      //Change orientation (landscape and portrait)
}
// -----------------------------------------------------------------------------------
// |                                 Loop                                            |
// -----------------------------------------------------------------------------------
void loop(void) {
tft.fillScreen(BACKGROUND); //
unsigned char myCharArray[512];
byte myChar;
for (int k = 0; k < 512; k++) {
// Create myCharArray from icon_from_progmem
myChar = pgm_read_byte(icon_from_progmem + k);
myCharArray[k] = char(myChar);
// Print data from myCharArry to the serial monitor
Serial.print("CHAR ARRAY: ");
Serial.print(k);
Serial.print("     ");
Serial.println(myChar);
}
// Visual separtion string
Serial.println("------------------------------------------------------------------");
// Print data from icon_from_progmem to serial monitor
for (int k=0; k<512; k++){
Serial.print("ICONS ARRAY: ");
Serial.print(k);
Serial.print("     ");
Serial.println(icon_from_progmem[k]);    
}
// Draw the two icons on the screen
drawBitmap(ix2, iy1, myCharArray,       64, 64, BLACK);
drawBitmap(ix4, iy1, icon_from_progmem, 64, 64, BLACK);
delay(600000);
} // end of void loop

位图的单独文件：

#include <avr/pgmspace.h>
// 'PlafLamp', 64x64px
const unsigned char icon_from_progmem [] PROGMEM = {
0x00, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xc0, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x7f, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xff, 0xff, 0xc0, 0x00, 0x00, 
0x00, 0x00, 0x0f, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xff, 0xff, 0xf8, 0x00, 0x00, 
0x00, 0x00, 0x7f, 0xc0, 0x03, 0xfe, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0x7f, 0x00, 0x00, 
0x00, 0x01, 0xfc, 0x00, 0x00, 0x3f, 0x80, 0x00, 0x00, 0x03, 0xf0, 0x00, 0x00, 0x0f, 0xc0, 0x00, 
0x00, 0x07, 0xe0, 0x00, 0x00, 0x07, 0xe0, 0x00, 0x00, 0x0f, 0xc0, 0x00, 0x00, 0x03, 0xf0, 0x00, 
0x00, 0x0f, 0x80, 0x00, 0x00, 0x01, 0xf0, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x00, 
0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x7c, 0x00, 
0x00, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 
0x00, 0x78, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 
0x00, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 
0x00, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x00, 
0x00, 0x00, 0x07, 0xc0, 0x03, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x03, 0xc0, 0x03, 0xc0, 0x00, 0x00, 
0x00, 0x00, 0x03, 0xe0, 0x07, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x01, 0xf8, 0x1f, 0x80, 0x00, 0x00, 
0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x3f, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xf8, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x1c, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x7c, 0x00, 0x00, 
0x00, 0x00, 0x7e, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x01, 0x80, 0x3f, 0x00, 0x00, 
0x00, 0x01, 0xf8, 0x03, 0xc0, 0x1f, 0x80, 0x00, 0x00, 0x03, 0xf0, 0x03, 0xc0, 0x0f, 0xc0, 0x00, 
0x00, 0x07, 0xe0, 0x03, 0xc0, 0x07, 0xe0, 0x00, 0x00, 0x07, 0xc0, 0x03, 0xc0, 0x03, 0xe0, 0x00, 
0x00, 0x07, 0x80, 0x03, 0xc0, 0x01, 0xe0, 0x00, 0x00, 0x03, 0x00, 0x03, 0xc0, 0x00, 0xc0, 0x00, 
0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x00
};

屏幕上显示的内容

左边的图像是 CHAR 数组，右边的图像是 ICON 数组。