Menu::type_ttype = (Menu::type_t)pgm_read_byte(&item->type);// React to key eventswitch(nr) {caseNO_KEY:break;caseSELECT_KEY:caseRIGHT_KEY:switch(type) {caseMenu::ZERO_OR_MANY:// Select zero-or-many variable or toggle current item{if(!m_selected) { m_selected =true; m_bv =...
`pgm_read_byte()`函数是一个预定义的函数,它用于读取程序存储空间中的数据。在Arduino环境中,由于程序存储空间有限,数据通常存储在这个空间中,以便节省动态内存的使用。 使用`pgm_read_byte()`函数读取字节数据 当我们想要读取程序存储空间中的单个字节时,可以使用`pgm_read_byte()`函数。以下是`pgm_read_byte(...
I have the following code: PROGMEM const uint8_t table[2][3] = { {0x7B,0x60,0x5D}, {0x7D,0x48,0x3E} }; void setup() { Serial.begin(115200); } void loop() { uint8_t data = pgm_read_byte(&table[1][1]); Serial.println(data, HEX); delay(250)...
unsigned char xx, xxxx;xx = pmg_read_byte(&x);xxxx = pgm_read_byte(&xxx[0]);
This however breaks other libraries, which are checking the existence of those functions and otherwise redefining them. Make pgm_read_byte() and pgm_read_word() again backwards compatible c… … 41eabcc Contributor Author wkraft-fablabka commented Jun 2, 2017 closed, as I will create ...
原来是用#define pgm_read_byte(a) (*(a))添加一个宏就行了 呵呵
pgm_read_byte_near() or pgm_read_word_near() instead of pgm_read_byte_far() or pgm_read_...
ch =pgm_read_byte_near(p);if(ch =='\n') yy -= font_height_; draw_string_P(64- xx /2,32- yy /2, text); } 开发者ID:hirakuni45,项目名称:AVR,代码行数:25,代码来源:monograph.cpp 示例4: pgm_read_byte_near ▲点赞 1▼ ...