}// serialport_printf("#ALERT COMPLETE#\r");eeprom_write_word(&eeprom_pulsePerLiter,pgm_read_word(&default_pulsePerLiter));// serialport_printf("#PULSEPERLITER COMPLETE#\r");for(k=0;k<sizeof(ALPHANUMERIC);k++) { eeprom_write_byte(((uint8_t*)&eeprom_alphaDisplay)+k,pgm_read_byte...
`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(...
在STM32上移植AVR芯片里的pgm_read_byte函数,可以使用STM32的内存映射功能,将FLASH中的数据映射到内存中,然后使用指针操作内存中的数据,就可以实现pgm_read_byte函数的功能。 具体步骤如下: 1. 将FLASH中的数据映射到内存中,可以使用STM32的内存映射功能,将FLASH中的数据映射到内存中,这样就可以使用指针操作内存中...
u8g->glyph_height =u8g_pgm_read( ((u8g_pgm_uint8_t*)g) +1); u8g->glyph_dx =u8g_pgm_read( ((u8g_pgm_uint8_t*)g) +3); u8g->glyph_x =u8g_pgm_read( ((u8g_pgm_uint8_t*)g) +4); u8g->glyph_y =u8g_pgm_read( ((u8g_pgm_uint8_t*)g) +5);break;case1:de...
And when I run that code on Arduino, I get randombeepswith random duration (much longer that expected). It looks likepgm_read_byte(&(song[i]))returns random values. I tried to extract code from functionplaySongtomainin order not to pass an array as an argument to the function and not...
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)...
例如 include <avr/pgmspace.h> prog_uchar x = 4, xxx[5] = {1,2,3,4,5};unsigned char xx, xxxx;xx = pmg_read_byte(&x);xxxx = pgm_read_byte(&xxx[0]);
原来是用#define pgm_read_byte(a) (*(a))添加一个宏就行了 呵呵
pgm_read_byte_far() or pgm_read_word_far() since it is more efficient that way, and you ...
Sent: Wednesday, September 05, 2007 1:43 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Looking for sample pgm to read SMF 42 Hi all, Does anyone know where I can find a sample program (Except for SAS-- We don't have SAS) to read SMF 42-6 records?