error: invalid types 'uint16_t {aka short unsigned int}[uint8_t {aka unsigned char}]' for array subscript
error: invalid types 'uint16_t {aka short unsigned int}[uint8_t {aka unsigned char}]' for array subscript
背景：
我目前正在为“Uncanny Eyes”开发 Adafruit 程序。我的意图是能够有几个瞬时开关，将静态图像绘制到一对 1.5" OLED 上。
此程序使用 Teensy 3.1 或 3.2。
收到错误消息后我目前卡住了
In function 'void drawEye(uint8_t, uint16_t)': uncannyEyes:146: error:
invalid types 'uint16_t {aka short unsigned int}[uint8_t {aka unsigned
char}]' for array subscript p = img[screenY][screenX];
我是 Stack Exchange 社区的新手，所以如果我做错了什么，我深表歉意！
#include <SPI.h>
#include <Adafruit_GFX.h> // Core graphics lib for Adafruit displays
// Enable ONE of these #includes -- HUGE graphics tables for various eyes:
//#include "defaultEye.h" // Standard human-ish hazel eye
//#include "noScleraEye.h" // Large iris, no sclera
//#include "dragonEye.h" // Slit pupil fiery dragon/demon eye
#include "goatEye.h" // Horizontal pupil goat/Krampus eye
// Then tweak settings below, e.g. change IRIS_MIN/MAX or disable TRACKING.
// DISPLAY HARDWARE CONFIG -------------------------------------------------
#include <Adafruit_SSD1351.h> // OLED display library -OR-
//#include <Adafruit_ST7735.h> // TFT display library (enable one only)
#ifdef _ADAFRUIT_ST7735H_
typedef Adafruit_ST7735 displayType; // Using TFT display(s)
#else
typedef Adafruit_SSD1351 displayType; // Using OLED display(s)
#endif
#define DISPLAY_DC 7 // Data/command pin for BOTH displays
#define DISPLAY_RESET 8 // Reset pin for BOTH displays
#define SELECT_L_PIN 9 // LEFT eye chip select pin
#define SELECT_R_PIN 10 // RIGHT eye chip select pin
// INPUT CONFIG (for eye motion -- enable or comment out as needed) --------
#define WINK_L_PIN 0 // Pin for LEFT eye wink button
#define BLINK_PIN 1 // Pin for blink button (BOTH eyes)
#define WINK_R_PIN 2 // Pin for RIGHT eye wink button
#define IMAGE_4 3 // Pin for RIGHT eye wink button
#define IMAGE_5 4 // Pin for RIGHT eye wink button
//#define AUTOBLINK // If enabled, eyes blink autonomously
// Probably don't need to edit any config below this line, -----------------
// unless building a single-eye project (pendant, etc.), in which case one
// of the two elements in the eye[] array further down can be commented out.
// Eye blinks are a tiny 3-state machine. Per-eye allows winks + blinks.
#define NOBLINK 0 // Not currently engaged in a blink
#define ENBLINK 1 // Eyelid is currently closing
#define DEBLINK 2 // Eyelid is currently opening
typedef struct {
int8_t pin; // Optional button here for indiv. wink
uint8_t state; // NOBLINK/ENBLINK/DEBLINK
int32_t duration; // Duration of blink state (micros)
uint32_t startTime; // Time (micros) of last state change
} eyeBlink;
struct {
displayType display; // OLED/TFT object
uint8_t cs; // Chip select pin
eyeBlink blink; // Current blink state
} eye[] = { // OK to comment out one of these for single-eye display:
displayType(SELECT_L_PIN,DISPLAY_DC,0),SELECT_L_PIN,{WINK_L_PIN,NOBLINK},
displayType(SELECT_R_PIN,DISPLAY_DC,0),SELECT_R_PIN,{WINK_R_PIN,NOBLINK},
};
#define NUM_EYES (sizeof(eye) / sizeof(eye[0]))
uint8_t
prevBtn = 99, // Button # pressed on last loop() iteration
btnCount = 0; // Number of iterations same button has been held
// INITIALIZATION -- runs once at startup ----------------------------------
void setup(void) {
uint8_t e;
Serial.begin(115200);
randomSeed(analogRead(A3)); // Seed random() from floating analog input
// Both displays share a common reset line; 0 is passed to display
// constructor (so no reset in begin()) -- must reset manually here:
pinMode(DISPLAY_RESET, OUTPUT);
digitalWrite(DISPLAY_RESET, LOW); delay(1);
digitalWrite(DISPLAY_RESET, HIGH); delay(50);
for(e=0; e<NUM_EYES; e++) { // Deselect all
pinMode(eye[e].cs, OUTPUT);
digitalWrite(eye[e].cs, HIGH);
}
for(e=0; e<NUM_EYES; e++) {
digitalWrite(eye[e].cs, LOW); // Select one eye for init
#ifdef _ADAFRUIT_ST7735H_ // TFT
eye[e].display.initR(INITR_144GREENTAB);
#else // OLED
eye[e].display.begin();
#endif
if(eye[e].blink.pin >= 0) pinMode(eye[e].blink.pin, INPUT_PULLUP);
digitalWrite(eye[e].cs, HIGH); // Deselect
}
#ifdef BLINK_PIN
pinMode(BLINK_PIN, INPUT_PULLUP);
#endif
for(uint8_t i=0; i<=6; i++) {
pinMode(i, INPUT);
digitalWrite(i, HIGH); // Enable pullup
}
}
// EYE-RENDERING FUNCTION --------------------------------------------------
SPISettings settings(24000000, MSBFIRST, SPI_MODE3); // Teensy 3.1 max SPI
void drawEye( // Renders one eye.
uint8_t e, // Eye array index; 0 or 1 for left/right
uint16_t img) { // Pointer to image data
uint8_t screenX, screenY;
uint16_t p;
// Set up raw pixel dump to entire screen. Although such writes can wrap
// around automatically from end of rect back to beginning, the region is
// reset on each frame here in case of an SPI glitch.
SPI.beginTransaction(settings);
#ifdef _ADAFRUIT_ST7735H_ // TFT
eye[e].display.setAddrWindow(0, 0, 127, 127);
#else // OLED
eye[e].display.writeCommand(SSD1351_CMD_SETROW); // Y range
eye[e].display.writeData(0); eye[e].display.writeData(SCREEN_HEIGHT - 1);
eye[e].display.writeCommand(SSD1351_CMD_SETCOLUMN); // X range
eye[e].display.writeData(0); eye[e].display.writeData(SCREEN_WIDTH - 1);
eye[e].display.writeCommand(SSD1351_CMD_WRITERAM); // Begin write
#endif
digitalWrite(eye[e].cs, LOW); // Chip select
digitalWrite(DISPLAY_DC, HIGH); // Data mode
// Now just issue raw 16-bit values for every pixel...
for(screenY=0; screenY<SCREEN_HEIGHT; screenY++) {
for(screenX=0; screenX<SCREEN_WIDTH; screenX++) {
p = img[screenY][screenX];
// SPI FIFO technique from Paul Stoffregen's ILI9341_t3 library:
while(KINETISK_SPI0.SR & 0xC000); // Wait for space in FIFO
KINETISK_SPI0.PUSHR = p | SPI_PUSHR_CTAS(1) | SPI_PUSHR_CONT;
}
}
KINETISK_SPI0.SR |= SPI_SR_TCF; // Clear transfer flag
while((KINETISK_SPI0.SR & 0xF000) || // Wait for SPI FIFO to drain
!(KINETISK_SPI0.SR & SPI_SR_TCF)); // Wait for last bit out
digitalWrite(eye[e].cs, HIGH); // Deselect
SPI.endTransaction();
}
// MAIN LOOP -- runs continuously after setup() ----------------------------
void loop() {
uint8_t i;
// Scan buttons 2-6 looking for first button pressed...
for(i=0; (i<2) && (digitalRead(i+2) == HIGH); i++);
if(i < 2) { // Anything pressed? Yes!
if(i == prevBtn) { // Same as last time we checked? Good!
if(++btnCount == 3) { // 3 passes to 'debounce' button input
if(digitalRead(2) == LOW) {
drawEye(0, sclera[0][0]);
drawEye(1, sclera[0][0]);
}
// if(digitalRead(3) == LOW) {
// drawEye(0, polar);
// drawEye(1, polar);
// }
// if(digitalRead(4) == LOW) {
// drawEye(0, sclera[0][0]);
// drawEye(1, polar[0][0]);
// }
// if(digitalRead(5) == LOW) {
// drawEye(0, polar[0][0]);
// drawEye(1, sclera[0][0]);
// }
// if(digitalRead(6) == LOW) {
// drawEye(0, eyeImage[3]);
// drawEye(1, eyeImage[3]);
// }
}
} else btnCount = 0; // Different button than before - start count over
prevBtn = i;
} else prevBtn = 99; // No buttons pressed
}
并且 header goatEye.h 没有数组数据，因为 post 将是巨大的
#define SCREEN_HEIGHT 128
#define SCREEN_WIDTH 128
const uint16_t sclera[SCREEN_HEIGHT][SCREEN_WIDTH] = {};
const uint16_t polar[SCREEN_HEIGHT][SCREEN_WIDTH] = {};
感谢您的帮助！
问题在这里：
void drawEye( // Renders one eye.
uint8_t e, // Eye array index; 0 or 1 for left/right
uint16_t img) { // Pointer to image data
函数 drawEye 需要单个 uint16_t，而不是 two-dimensional 数组。所以当你试图获取它的数组索引时，你会得到一个错误，因为它不是一个数组。
您需要像这样定义函数：
void drawEye( // Renders one eye.
uint8_t e, // Eye array index; 0 or 1 for left/right
const uint16_t img[SCREEN_HEIGHT][SCREEN_WIDTH]) { // Pointer to image data
并这样称呼它：
if(digitalRead(2) == LOW) {
drawEye(0, sclera);
drawEye(1, sclera);
}
变量img不是指针，它是一个unsigned short int，不能像p = img[screenY][screenX];
那样访问
将您的参数更改为 uint16_t* img 并像那样访问它 p = img[screenY*screenX];，然后调用然后像那样调用函数 drawEye(0, sclera);。
背景： 我目前正在为“Uncanny Eyes”开发 Adafruit 程序。我的意图是能够有几个瞬时开关，将静态图像绘制到一对 1.5" OLED 上。
此程序使用 Teensy 3.1 或 3.2。
收到错误消息后我目前卡住了
In function 'void drawEye(uint8_t, uint16_t)': uncannyEyes:146: error: invalid types 'uint16_t {aka short unsigned int}[uint8_t {aka unsigned char}]' for array subscript p = img[screenY][screenX];
我是 Stack Exchange 社区的新手，所以如果我做错了什么，我深表歉意！
#include <SPI.h>
#include <Adafruit_GFX.h> // Core graphics lib for Adafruit displays
// Enable ONE of these #includes -- HUGE graphics tables for various eyes:
//#include "defaultEye.h" // Standard human-ish hazel eye
//#include "noScleraEye.h" // Large iris, no sclera
//#include "dragonEye.h" // Slit pupil fiery dragon/demon eye
#include "goatEye.h" // Horizontal pupil goat/Krampus eye
// Then tweak settings below, e.g. change IRIS_MIN/MAX or disable TRACKING.
// DISPLAY HARDWARE CONFIG -------------------------------------------------
#include <Adafruit_SSD1351.h> // OLED display library -OR-
//#include <Adafruit_ST7735.h> // TFT display library (enable one only)
#ifdef _ADAFRUIT_ST7735H_
typedef Adafruit_ST7735 displayType; // Using TFT display(s)
#else
typedef Adafruit_SSD1351 displayType; // Using OLED display(s)
#endif
#define DISPLAY_DC 7 // Data/command pin for BOTH displays
#define DISPLAY_RESET 8 // Reset pin for BOTH displays
#define SELECT_L_PIN 9 // LEFT eye chip select pin
#define SELECT_R_PIN 10 // RIGHT eye chip select pin
// INPUT CONFIG (for eye motion -- enable or comment out as needed) --------
#define WINK_L_PIN 0 // Pin for LEFT eye wink button
#define BLINK_PIN 1 // Pin for blink button (BOTH eyes)
#define WINK_R_PIN 2 // Pin for RIGHT eye wink button
#define IMAGE_4 3 // Pin for RIGHT eye wink button
#define IMAGE_5 4 // Pin for RIGHT eye wink button
//#define AUTOBLINK // If enabled, eyes blink autonomously
// Probably don't need to edit any config below this line, -----------------
// unless building a single-eye project (pendant, etc.), in which case one
// of the two elements in the eye[] array further down can be commented out.
// Eye blinks are a tiny 3-state machine. Per-eye allows winks + blinks.
#define NOBLINK 0 // Not currently engaged in a blink
#define ENBLINK 1 // Eyelid is currently closing
#define DEBLINK 2 // Eyelid is currently opening
typedef struct {
int8_t pin; // Optional button here for indiv. wink
uint8_t state; // NOBLINK/ENBLINK/DEBLINK
int32_t duration; // Duration of blink state (micros)
uint32_t startTime; // Time (micros) of last state change
} eyeBlink;
struct {
displayType display; // OLED/TFT object
uint8_t cs; // Chip select pin
eyeBlink blink; // Current blink state
} eye[] = { // OK to comment out one of these for single-eye display:
displayType(SELECT_L_PIN,DISPLAY_DC,0),SELECT_L_PIN,{WINK_L_PIN,NOBLINK},
displayType(SELECT_R_PIN,DISPLAY_DC,0),SELECT_R_PIN,{WINK_R_PIN,NOBLINK},
};
#define NUM_EYES (sizeof(eye) / sizeof(eye[0]))
uint8_t
prevBtn = 99, // Button # pressed on last loop() iteration
btnCount = 0; // Number of iterations same button has been held
// INITIALIZATION -- runs once at startup ----------------------------------
void setup(void) {
uint8_t e;
Serial.begin(115200);
randomSeed(analogRead(A3)); // Seed random() from floating analog input
// Both displays share a common reset line; 0 is passed to display
// constructor (so no reset in begin()) -- must reset manually here:
pinMode(DISPLAY_RESET, OUTPUT);
digitalWrite(DISPLAY_RESET, LOW); delay(1);
digitalWrite(DISPLAY_RESET, HIGH); delay(50);
for(e=0; e<NUM_EYES; e++) { // Deselect all
pinMode(eye[e].cs, OUTPUT);
digitalWrite(eye[e].cs, HIGH);
}
for(e=0; e<NUM_EYES; e++) {
digitalWrite(eye[e].cs, LOW); // Select one eye for init
#ifdef _ADAFRUIT_ST7735H_ // TFT
eye[e].display.initR(INITR_144GREENTAB);
#else // OLED
eye[e].display.begin();
#endif
if(eye[e].blink.pin >= 0) pinMode(eye[e].blink.pin, INPUT_PULLUP);
digitalWrite(eye[e].cs, HIGH); // Deselect
}
#ifdef BLINK_PIN
pinMode(BLINK_PIN, INPUT_PULLUP);
#endif
for(uint8_t i=0; i<=6; i++) {
pinMode(i, INPUT);
digitalWrite(i, HIGH); // Enable pullup
}
}
// EYE-RENDERING FUNCTION --------------------------------------------------
SPISettings settings(24000000, MSBFIRST, SPI_MODE3); // Teensy 3.1 max SPI
void drawEye( // Renders one eye.
uint8_t e, // Eye array index; 0 or 1 for left/right
uint16_t img) { // Pointer to image data
uint8_t screenX, screenY;
uint16_t p;
// Set up raw pixel dump to entire screen. Although such writes can wrap
// around automatically from end of rect back to beginning, the region is
// reset on each frame here in case of an SPI glitch.
SPI.beginTransaction(settings);
#ifdef _ADAFRUIT_ST7735H_ // TFT
eye[e].display.setAddrWindow(0, 0, 127, 127);
#else // OLED
eye[e].display.writeCommand(SSD1351_CMD_SETROW); // Y range
eye[e].display.writeData(0); eye[e].display.writeData(SCREEN_HEIGHT - 1);
eye[e].display.writeCommand(SSD1351_CMD_SETCOLUMN); // X range
eye[e].display.writeData(0); eye[e].display.writeData(SCREEN_WIDTH - 1);
eye[e].display.writeCommand(SSD1351_CMD_WRITERAM); // Begin write
#endif
digitalWrite(eye[e].cs, LOW); // Chip select
digitalWrite(DISPLAY_DC, HIGH); // Data mode
// Now just issue raw 16-bit values for every pixel...
for(screenY=0; screenY<SCREEN_HEIGHT; screenY++) {
for(screenX=0; screenX<SCREEN_WIDTH; screenX++) {
p = img[screenY][screenX];
// SPI FIFO technique from Paul Stoffregen's ILI9341_t3 library:
while(KINETISK_SPI0.SR & 0xC000); // Wait for space in FIFO
KINETISK_SPI0.PUSHR = p | SPI_PUSHR_CTAS(1) | SPI_PUSHR_CONT;
}
}
KINETISK_SPI0.SR |= SPI_SR_TCF; // Clear transfer flag
while((KINETISK_SPI0.SR & 0xF000) || // Wait for SPI FIFO to drain
!(KINETISK_SPI0.SR & SPI_SR_TCF)); // Wait for last bit out
digitalWrite(eye[e].cs, HIGH); // Deselect
SPI.endTransaction();
}
// MAIN LOOP -- runs continuously after setup() ----------------------------
void loop() {
uint8_t i;
// Scan buttons 2-6 looking for first button pressed...
for(i=0; (i<2) && (digitalRead(i+2) == HIGH); i++);
if(i < 2) { // Anything pressed? Yes!
if(i == prevBtn) { // Same as last time we checked? Good!
if(++btnCount == 3) { // 3 passes to 'debounce' button input
if(digitalRead(2) == LOW) {
drawEye(0, sclera[0][0]);
drawEye(1, sclera[0][0]);
}
// if(digitalRead(3) == LOW) {
// drawEye(0, polar);
// drawEye(1, polar);
// }
// if(digitalRead(4) == LOW) {
// drawEye(0, sclera[0][0]);
// drawEye(1, polar[0][0]);
// }
// if(digitalRead(5) == LOW) {
// drawEye(0, polar[0][0]);
// drawEye(1, sclera[0][0]);
// }
// if(digitalRead(6) == LOW) {
// drawEye(0, eyeImage[3]);
// drawEye(1, eyeImage[3]);
// }
}
} else btnCount = 0; // Different button than before - start count over
prevBtn = i;
} else prevBtn = 99; // No buttons pressed
}
并且 header goatEye.h 没有数组数据，因为 post 将是巨大的
#define SCREEN_HEIGHT 128
#define SCREEN_WIDTH 128
const uint16_t sclera[SCREEN_HEIGHT][SCREEN_WIDTH] = {};
const uint16_t polar[SCREEN_HEIGHT][SCREEN_WIDTH] = {};
感谢您的帮助！
问题在这里：
void drawEye( // Renders one eye.
uint8_t e, // Eye array index; 0 or 1 for left/right
uint16_t img) { // Pointer to image data
函数 drawEye 需要单个 uint16_t，而不是 two-dimensional 数组。所以当你试图获取它的数组索引时，你会得到一个错误，因为它不是一个数组。
您需要像这样定义函数：
void drawEye( // Renders one eye.
uint8_t e, // Eye array index; 0 or 1 for left/right
const uint16_t img[SCREEN_HEIGHT][SCREEN_WIDTH]) { // Pointer to image data
并这样称呼它：
if(digitalRead(2) == LOW) {
drawEye(0, sclera);
drawEye(1, sclera);
}
变量img不是指针，它是一个unsigned short int，不能像p = img[screenY][screenX];
将您的参数更改为 uint16_t* img 并像那样访问它 p = img[screenY*screenX];，然后调用然后像那样调用函数 drawEye(0, sclera);。