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Small modifications

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Marián 2022-12-01 14:38:26 +01:00 committed by GitHub
parent 337969f930
commit 59d4912c0f
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1 changed files with 11 additions and 11 deletions
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lib/ssd1306.c
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@ -21,6 +21,7 @@
* @usage Basic Setup for OLED Display
*/
// @includes
#include "ssd1306.h"
// +---------------------------+
@ -125,8 +126,8 @@ const uint8_t INIT_SSD1306[] PROGMEM = {
0, SSD1306_DISPLAY_ON // 0xAF = Set Display ON
};
unsigned short int _indexCol = START_COL_ADDR; // @var global - cache index column
unsigned short int _indexPage = START_PAGE_ADDR; // @var global - cache index page
uint8_t _indexCol = START_COL_ADDR; // @var global - cache index column
uint8_t _indexPage = START_PAGE_ADDR; // @var global - cache index page
/**
* @desc SSD1306 Init
@ -138,7 +139,7 @@ unsigned short int _indexPage = START_PAGE_ADDR; // @var global
uint8_t SSD1306_Init (void)
{
const uint8_t * commands = INIT_SSD1306; // variables
unsigned short int no_of_commands = pgm_read_byte(commands++); // number of commands
uint8_t no_of_commands = pgm_read_byte (commands++); // number of commands
uint8_t no_of_arguments; // number od arguments
uint8_t command; // command
uint8_t status = INIT_STATUS; // TWI init status 0xFF
@ -172,7 +173,6 @@ uint8_t SSD1306_Init (void)
return status; // error
}
}
no_of_commands--; // next command
}
// TWI STOP
@ -185,7 +185,7 @@ uint8_t SSD1306_Init (void)
/**
* @desc SSD1306 Send Start and SLAW request
*
* @param uint8_t
* @param uint8_t address
*
* @return uint8_t
*/
@ -264,7 +264,7 @@ uint8_t SSD1306_NormalScreen (void)
}
/**
* @desc SSD1306 Inverse colors
* @desc SSD1306 Inverse screen colors
*
* @param void
*
@ -333,8 +333,8 @@ uint8_t SSD1306_ClearScreen (void)
/**
* @desc SSD1306 Set position
*
* @param uint8_t column -> 0 ... 127
* @param uint8_t page -> 0 ... 7
* @param uint8_t x / column -> 0 ... 127
* @param uint8_t y / page -> 0 ... 7
*
* @return void
*/
@ -667,7 +667,7 @@ uint8_t SSD1306_DrawLineHorz (uint8_t y, uint8_t x1, uint8_t x2)
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
_indexPage = y; // update column index
_indexPage = y; // update page index
// TWI control byte data stream
// -------------------------------------------------------------------------------------
@ -695,7 +695,7 @@ uint8_t SSD1306_DrawLineHorz (uint8_t y, uint8_t x1, uint8_t x2)
/**
* @desc Draw line by Bresenham algoritm
* @note Approach with DrawPixel function takes 11 bytes for drawing 1 pixel
* @note Approach with DrawPixel function takes 9 bytes for drawing 1 pixel
*
* @param uint8_t x start position / 0 <= cols <= MAX_X-1
* @param uint8_t x end position / 0 <= cols <= MAX_X-1