'prog_uint8_t' 没有命名类型 - ARDUINO IDE
'prog_uint8_t' does not name a type - ARDUINO IDE
恐怕这是一个非常新手的问题，但我已经尽力理解这个问题，但由于我对 C 编程的经验很少，所以一无所获。
我目前正在从 Instructables 中挑选一两年前的旧项目：https://www.instructables.com/id/Jar-of-Fireflies/
这包括为 Firefly 模式编写的固件的 C 文件，但这是 12 年前编写的。
但是......我没有按照第N度的指导。相反，我使用的是 DIP AtTiny85，我之前使用 Arduino 作为 ISP 对其进行了编程。因此希望能够使用 Visual Micro 插件在 Arduino IDE 或 Atmel Studio 中编译代码。
每次在 Arduino IDE 中编译时，我都会收到以下错误：
'prog_uint8_t' 没有命名类型，这会导致很多错误。
据我了解，这种减速是 removed/changed 作为 AVR GCC 的一部分，在 2010 年左右...我是否可以将其正确编译为 运行 代码？也许使用宏或包含一个库。我已经尝试了一些库，例如 #include <stdint.h>，但相信这应该作为自动 <Arduino.h> 包含的一部分来处理。我确定如果我带了合适的程序员，我的问题可能会消失，但我确定有一个简单的解决方法..？
以上可指导 link 中以 .tgz 形式提供的代码，其中包括 headers、c 可执行文件、十六进制等，
用于快速阅读主要的 c 可执行文件声明....
const prog_uint8_t about[] = "Jar of Fireflies\n"
"Design and Implementation by Xander Hudson (jar@synoptic.org)\n"
"Idea and Inspiration by Kayobi Tierney\n"
"Special thanks to Katie Horn for getting me to think about
electronics";
const prog_uint8_t version[] = "$Revision: 1.41 $ $Date: 2007/01/10
04:35:55 $";
#define LEDS_OFF ~(_BV(PIN_A) | _BV(PIN_B))
#define WATCHDOG_OK WDTCR |= _BV(WDIE)
uint8_t pickapin (uint8_t);
const Song *pickasong (void);
uint8_t randwaitval (void);
uint8_t randbits (uint8_t);
uint8_t pickmaster (void);
uint8_t randscaleval (void);
void showbootup (void);
volatile uint8_t ch1restcount;
volatile uint8_t ch2restcount;
volatile uint8_t ch1nextnote;
volatile uint8_t ch2nextnote;
volatile uint8_t ch1scale;
volatile uint8_t ch2scale;
volatile uint8_t ch1nextscale;
volatile uint8_t ch2nextscale;
uint8_t mood = 2;
uint16_t mood_count = 30; // WDT cycles before changing mood
volatile uint8_t masterpinmask;
错误：
In file included from C:\Program Files
(x86)\Arduino\libraries\Firefly/firefly.h:12:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/songs.h:4:11: error: 'prog_uint8_t' does not name a type
const prog_uint8_t *notes;
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:14:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/bootsong.h:3:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t bootsongnotes[] = {0, 4, 9, 16, 24, 33, 41, 47, 50, 49,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/bootsong.h:5:26: error: 'bootsongnotes' was not declared in this scope
Song bootsong = { sizeof(bootsongnotes), bootsongnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/bootsong.h:5:42: error: 'bootsongnotes' was not declared in this scope
Song bootsong = { sizeof(bootsongnotes), bootsongnotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:25:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2a.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2anotes[] = {2, 29, 81, 123, 130, 104, 63, 24, 2,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2a.h:20:24: error: 'song2anotes' was not declared in this scope
Song song2a = { sizeof(song2anotes), song2anotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2a.h:20:38: error: 'song2anotes' was not declared in this scope
Song song2a = { sizeof(song2anotes), song2anotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:26:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2b.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2bnotes[] = {1, 31, 89, 126, 119, 85, 42, 6, 1, 1,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2b.h:19:24: error: 'song2bnotes' was not declared in this scope
Song song2b = { sizeof(song2bnotes), song2bnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2b.h:19:38: error: 'song2bnotes' was not declared in this scope
Song song2b = { sizeof(song2bnotes), song2bnotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:27:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2c.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2cnotes[] = {2, 25, 70, 117, 146, 144, 111, 61, 18,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2c.h:21:24: error: 'song2cnotes' was not declared in this scope
Song song2c = { sizeof(song2cnotes), song2cnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2c.h:21:38: error: 'song2cnotes' was not declared in this scope
Song song2c = { sizeof(song2cnotes), song2cnotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:28:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2d.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2dnotes[] = {1, 27, 72, 109, 121, 104, 61, 17, 1, 1,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2d.h:17:24: error: 'song2dnotes' was not declared in this scope
Song song2d = { sizeof(song2dnotes), song2dnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2d.h:17:38: error: 'song2dnotes' was not declared in this scope
Song song2d = { sizeof(song2dnotes), song2dnotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:29:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2e.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2enotes[] = {1, 26, 73, 116, 131, 115, 80, 39, 8,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2e.h:21:24: error: 'song2enotes' was not declared in this scope
Song song2e = { sizeof(song2enotes), song2enotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2e.h:21:38: error: 'song2enotes' was not declared in this scope
Song song2e = { sizeof(song2enotes), song2enotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:30:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2f.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2fnotes[] = {2, 36, 94, 130, 121, 79, 27, 1, 1, 1,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2f.h:17:24: error: 'song2fnotes' was not declared in this scope
Song song2f = { sizeof(song2fnotes), song2fnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2f.h:17:38: error: 'song2fnotes' was not declared in this scope
Song song2f = { sizeof(song2fnotes), song2fnotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:31:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2g.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2gnotes[] = {2, 42, 99, 121, 96, 42, 3, 1, 1, 1, 1,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2g.h:14:24: error: 'song2gnotes' was not declared in this scope
Song song2g = { sizeof(song2gnotes), song2gnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2g.h:14:38: error: 'song2gnotes' was not declared in this scope
Song song2g = { sizeof(song2gnotes), song2gnotes };
^
In file included from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:0:
C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:133:7: error:
'prog_uint8_t' does not name a type
const prog_uint8_t bitmasks[] = {
^
Firefly01:11: error: 'prog_uint8_t' does not name a type
const prog_uint8_t about[] = "Jar of Fireflies\n"
^
Firefly01:15: error: 'prog_uint8_t' does not name a type
const prog_uint8_t version[] = "$Revision: 1.41 $ $Date: 2007/01/10 04:35:55 $";
^
In file included from C:\Users\Andrew\AppData\Local\Arduino15\packages\arduino\hardware\avr.6.21\cores\arduino/Arduino.h:28:0,
from sketch\Firefly01.ino.cpp:1:
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino: In function 'int main()':
Firefly01:230: error: 'const Song' has no member named 'notes'
temp = pgm_read_byte(&ch1song->notes[ch1noteptr++]);
^
Firefly01:244: error: 'const Song' has no member named 'notes'
temp = pgm_read_byte(&ch2song->notes[ch2noteptr++]);
^
Firefly01:288: error: 'const Song' has no member named 'notes'
temp = pgm_read_byte(&ch1song->notes[ch1noteptr++]);
^
Firefly01:313: error: 'const Song' has no member named 'notes'
temp = pgm_read_byte(&ch2song->notes[ch2noteptr++]);
^
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino: In function
'void showbootup()':
Firefly01:379: error: 'const Song' has no member named 'notes'
ch1nextnote = pgm_read_byte(&ch1song->notes[ch1noteptr++]);
^
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino: In function 'uint8_t randbits(uint8_t)':
Firefly01:485: error: 'bitmasks' was not declared in this scope
return ((lfsr & 0xFF) & pgm_read_byte(&bitmasks[bits]));
^
exit status 1
'prog_uint8_t' does not name a type
// ------------------ 错误结束
一旦为无符号 8/16/32 位 int 减速定义了一种方法，我希望程序能够编译。
如果有人能帮助我更好地理解那就太好了。因为当有人花了很长时间让萤火虫算法变得很好时，我宁愿不编写自己的代码！但是，我愿意学习，所以任何 link 类似这样的东西也会很好。
它已被折旧，但是您应该能够通过在使用 prog_uint8_t
之前添加以下代码来使其正常工作
#define __PROG_TYPES_COMPAT__
#include <avr/pgmspace.h>
typedef uint8_t PROGMEM prog_uint8_t;
prog_uint8_t
这个 typedef 由 avr-libc 的（非常）旧的 headers 提供。问题是他们在 avr-gcc / avr-g++ 不支持的 typedef 中使用了 __attribute__((__progmem__))：progmem 是一个 变量 属性和 不是类型 属性，c.f。 avr-gcc ABI.
#define __PROG_TYPES_COMPAT__
#include <avr/pgmspace.h>
这不是解决方案：虽然它"fixes"构建错误，但它会调用未定义的行为，因为progmem 不是类型属性。这些类型已被弃用是有原因的！
typedef uint8_t PROGMEM prog_uint8_t;
这不是解决方案：虽然它"fixes"构建错误，但它会调用未定义的行为，因为progmem 不是类型属性。
typedef uint8_t prog_uint8_t;
这不是解决方案：虽然它"fixes"构建错误，objects声明为该类型将位于 RAM 中，因此用于从闪存/程序存储器读取数据的 pgm_read_xxx() 将读取垃圾，因为数据位于错误的地址 space。原则上，您可以使用该 typedef 并使用 vanilla C++ 访问而不是通过 pgm_read_xxx 进行读取，但这不是您想要的，因为引入 PROGMEM 是为了将 const 变量放入闪存中而不是放入 RAM 中。这是因为对于大多数 AVR，.rodata 位于 RAM 而不是闪存中。但是请参阅下面的注释。
那么解决方案是什么？
正确的解决方案是将 #include <avr/pgmspace.h> 定义的 PROGMEM 用于以前使用这些可怕的 prog 类型的所有 object 定义：使用
const uint8_t array_flash[] PROGMEM = { 1, 2 };
而不是不正确的
const prog_uint8_t array_flash[] = { 1, 2 };
由于您使用的是 C++，因此 space 之类的地址 __flash 不可用，我不会深入讨论。
注：有线性地址space的AVR设备。对于此类设备，.rodata 是 位于闪存中。这意味着对于这样的设备，使用PROGMEM+pgm_read_xxx没有优势；相反，您只是在编写可移植性较差且难以阅读和维护的代码。相反，请使用香草 C++。
这适用的设备系列是 avrtiny 和 avrxmega3，如 avr-gcc documentation 中所列。
恐怕这是一个非常新手的问题，但我已经尽力理解这个问题，但由于我对 C 编程的经验很少，所以一无所获。
我目前正在从 Instructables 中挑选一两年前的旧项目：https://www.instructables.com/id/Jar-of-Fireflies/
这包括为 Firefly 模式编写的固件的 C 文件，但这是 12 年前编写的。
但是......我没有按照第N度的指导。相反，我使用的是 DIP AtTiny85，我之前使用 Arduino 作为 ISP 对其进行了编程。因此希望能够使用 Visual Micro 插件在 Arduino IDE 或 Atmel Studio 中编译代码。
每次在 Arduino IDE 中编译时，我都会收到以下错误： 'prog_uint8_t' 没有命名类型，这会导致很多错误。
据我了解，这种减速是 removed/changed 作为 AVR GCC 的一部分，在 2010 年左右...我是否可以将其正确编译为 运行 代码？也许使用宏或包含一个库。我已经尝试了一些库，例如 #include <stdint.h>，但相信这应该作为自动 <Arduino.h> 包含的一部分来处理。我确定如果我带了合适的程序员，我的问题可能会消失，但我确定有一个简单的解决方法..？
以上可指导 link 中以 .tgz 形式提供的代码，其中包括 headers、c 可执行文件、十六进制等，
用于快速阅读主要的 c 可执行文件声明....
const prog_uint8_t about[] = "Jar of Fireflies\n"
"Design and Implementation by Xander Hudson (jar@synoptic.org)\n"
"Idea and Inspiration by Kayobi Tierney\n"
"Special thanks to Katie Horn for getting me to think about
electronics";
const prog_uint8_t version[] = "$Revision: 1.41 $ $Date: 2007/01/10
04:35:55 $";
#define LEDS_OFF ~(_BV(PIN_A) | _BV(PIN_B))
#define WATCHDOG_OK WDTCR |= _BV(WDIE)
uint8_t pickapin (uint8_t);
const Song *pickasong (void);
uint8_t randwaitval (void);
uint8_t randbits (uint8_t);
uint8_t pickmaster (void);
uint8_t randscaleval (void);
void showbootup (void);
volatile uint8_t ch1restcount;
volatile uint8_t ch2restcount;
volatile uint8_t ch1nextnote;
volatile uint8_t ch2nextnote;
volatile uint8_t ch1scale;
volatile uint8_t ch2scale;
volatile uint8_t ch1nextscale;
volatile uint8_t ch2nextscale;
uint8_t mood = 2;
uint16_t mood_count = 30; // WDT cycles before changing mood
volatile uint8_t masterpinmask;
错误：
In file included from C:\Program Files
(x86)\Arduino\libraries\Firefly/firefly.h:12:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/songs.h:4:11: error: 'prog_uint8_t' does not name a type
const prog_uint8_t *notes;
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:14:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/bootsong.h:3:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t bootsongnotes[] = {0, 4, 9, 16, 24, 33, 41, 47, 50, 49,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/bootsong.h:5:26: error: 'bootsongnotes' was not declared in this scope
Song bootsong = { sizeof(bootsongnotes), bootsongnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/bootsong.h:5:42: error: 'bootsongnotes' was not declared in this scope
Song bootsong = { sizeof(bootsongnotes), bootsongnotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:25:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2a.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2anotes[] = {2, 29, 81, 123, 130, 104, 63, 24, 2,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2a.h:20:24: error: 'song2anotes' was not declared in this scope
Song song2a = { sizeof(song2anotes), song2anotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2a.h:20:38: error: 'song2anotes' was not declared in this scope
Song song2a = { sizeof(song2anotes), song2anotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:26:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2b.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2bnotes[] = {1, 31, 89, 126, 119, 85, 42, 6, 1, 1,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2b.h:19:24: error: 'song2bnotes' was not declared in this scope
Song song2b = { sizeof(song2bnotes), song2bnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2b.h:19:38: error: 'song2bnotes' was not declared in this scope
Song song2b = { sizeof(song2bnotes), song2bnotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:27:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2c.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2cnotes[] = {2, 25, 70, 117, 146, 144, 111, 61, 18,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2c.h:21:24: error: 'song2cnotes' was not declared in this scope
Song song2c = { sizeof(song2cnotes), song2cnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2c.h:21:38: error: 'song2cnotes' was not declared in this scope
Song song2c = { sizeof(song2cnotes), song2cnotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:28:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2d.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2dnotes[] = {1, 27, 72, 109, 121, 104, 61, 17, 1, 1,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2d.h:17:24: error: 'song2dnotes' was not declared in this scope
Song song2d = { sizeof(song2dnotes), song2dnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2d.h:17:38: error: 'song2dnotes' was not declared in this scope
Song song2d = { sizeof(song2dnotes), song2dnotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:29:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2e.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2enotes[] = {1, 26, 73, 116, 131, 115, 80, 39, 8,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2e.h:21:24: error: 'song2enotes' was not declared in this scope
Song song2e = { sizeof(song2enotes), song2enotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2e.h:21:38: error: 'song2enotes' was not declared in this scope
Song song2e = { sizeof(song2enotes), song2enotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:30:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2f.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2fnotes[] = {2, 36, 94, 130, 121, 79, 27, 1, 1, 1,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2f.h:17:24: error: 'song2fnotes' was not declared in this scope
Song song2f = { sizeof(song2fnotes), song2fnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2f.h:17:38: error: 'song2fnotes' was not declared in this scope
Song song2f = { sizeof(song2fnotes), song2fnotes };
^
In file included from C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:31:0,
from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2g.h:6:7: error: 'prog_uint8_t' does not name a type
const prog_uint8_t song2gnotes[] = {2, 42, 99, 121, 96, 42, 3, 1, 1, 1, 1,
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2g.h:14:24: error: 'song2gnotes' was not declared in this scope
Song song2g = { sizeof(song2gnotes), song2gnotes };
^
C:\Program Files (x86)\Arduino\libraries\Firefly/songs/song2g.h:14:38: error: 'song2gnotes' was not declared in this scope
Song song2g = { sizeof(song2gnotes), song2gnotes };
^
In file included from
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino:8:0:
C:\Program Files (x86)\Arduino\libraries\Firefly/firefly.h:133:7: error:
'prog_uint8_t' does not name a type
const prog_uint8_t bitmasks[] = {
^
Firefly01:11: error: 'prog_uint8_t' does not name a type
const prog_uint8_t about[] = "Jar of Fireflies\n"
^
Firefly01:15: error: 'prog_uint8_t' does not name a type
const prog_uint8_t version[] = "$Revision: 1.41 $ $Date: 2007/01/10 04:35:55 $";
^
In file included from C:\Users\Andrew\AppData\Local\Arduino15\packages\arduino\hardware\avr.6.21\cores\arduino/Arduino.h:28:0,
from sketch\Firefly01.ino.cpp:1:
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino: In function 'int main()':
Firefly01:230: error: 'const Song' has no member named 'notes'
temp = pgm_read_byte(&ch1song->notes[ch1noteptr++]);
^
Firefly01:244: error: 'const Song' has no member named 'notes'
temp = pgm_read_byte(&ch2song->notes[ch2noteptr++]);
^
Firefly01:288: error: 'const Song' has no member named 'notes'
temp = pgm_read_byte(&ch1song->notes[ch1noteptr++]);
^
Firefly01:313: error: 'const Song' has no member named 'notes'
temp = pgm_read_byte(&ch2song->notes[ch2noteptr++]);
^
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino: In function
'void showbootup()':
Firefly01:379: error: 'const Song' has no member named 'notes'
ch1nextnote = pgm_read_byte(&ch1song->notes[ch1noteptr++]);
^
C:\Users\Andrew\Documents\Arduino\Firefly01\Firefly01.ino: In function 'uint8_t randbits(uint8_t)':
Firefly01:485: error: 'bitmasks' was not declared in this scope
return ((lfsr & 0xFF) & pgm_read_byte(&bitmasks[bits]));
^
exit status 1
'prog_uint8_t' does not name a type
// ------------------ 错误结束
一旦为无符号 8/16/32 位 int 减速定义了一种方法，我希望程序能够编译。
如果有人能帮助我更好地理解那就太好了。因为当有人花了很长时间让萤火虫算法变得很好时，我宁愿不编写自己的代码！但是，我愿意学习，所以任何 link 类似这样的东西也会很好。
它已被折旧，但是您应该能够通过在使用 prog_uint8_t
之前添加以下代码来使其正常工作#define __PROG_TYPES_COMPAT__
#include <avr/pgmspace.h>
typedef uint8_t PROGMEM prog_uint8_t;
prog_uint8_t
这个 typedef 由 avr-libc 的（非常）旧的 headers 提供。问题是他们在 avr-gcc / avr-g++ 不支持的 typedef 中使用了 __attribute__((__progmem__))：progmem 是一个 变量 属性和 不是类型 属性，c.f。 avr-gcc ABI.
#define __PROG_TYPES_COMPAT__
#include <avr/pgmspace.h>
这不是解决方案：虽然它"fixes"构建错误，但它会调用未定义的行为，因为progmem 不是类型属性。这些类型已被弃用是有原因的！
typedef uint8_t PROGMEM prog_uint8_t;
这不是解决方案：虽然它"fixes"构建错误，但它会调用未定义的行为，因为progmem 不是类型属性。
typedef uint8_t prog_uint8_t;
这不是解决方案：虽然它"fixes"构建错误，objects声明为该类型将位于 RAM 中，因此用于从闪存/程序存储器读取数据的 pgm_read_xxx() 将读取垃圾，因为数据位于错误的地址 space。原则上，您可以使用该 typedef 并使用 vanilla C++ 访问而不是通过 pgm_read_xxx 进行读取，但这不是您想要的，因为引入 PROGMEM 是为了将 const 变量放入闪存中而不是放入 RAM 中。这是因为对于大多数 AVR，.rodata 位于 RAM 而不是闪存中。但是请参阅下面的注释。
那么解决方案是什么？
正确的解决方案是将 #include <avr/pgmspace.h> 定义的 PROGMEM 用于以前使用这些可怕的 prog 类型的所有 object 定义：使用
const uint8_t array_flash[] PROGMEM = { 1, 2 };
而不是不正确的
const prog_uint8_t array_flash[] = { 1, 2 };
由于您使用的是 C++，因此 space 之类的地址 __flash 不可用，我不会深入讨论。
注：有线性地址space的AVR设备。对于此类设备，.rodata 是 位于闪存中。这意味着对于这样的设备，使用PROGMEM+pgm_read_xxx没有优势；相反，您只是在编写可移植性较差且难以阅读和维护的代码。相反，请使用香草 C++。
这适用的设备系列是 avrtiny 和 avrxmega3，如 avr-gcc documentation 中所列。