Marcelo Costanzo Miranda / Mbed 2 deprecated ST7920_TEST_sem_lib_2

ST7920 Testes

Dependencies:   mbed

ST7920.h@1:08481151e25e, 2020-12-14 (annotated)

Committer:
Marcelocostanzo
Date:
Mon Dec 14 19:10:22 2020 +0000
Revision:
1:08481151e25e
Versao de testes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Marcelocostanzo 1:08481151e25e 1 #include "mbed.h"
Marcelocostanzo 1:08481151e25e 2
Marcelocostanzo 1:08481151e25e 3 #define OFF 0
Marcelocostanzo 1:08481151e25e 4 #define ON 1
Marcelocostanzo 1:08481151e25e 5
Marcelocostanzo 1:08481151e25e 6 // Instruction Set 1: (RE=0: Basic Instruction)
Marcelocostanzo 1:08481151e25e 7 #define DISPLAY_CLEAR 0x01 // Fill DDRAM with "20H" and set DDRAM address counter (AC) to "00H"
Marcelocostanzo 1:08481151e25e 8 #define RETURN_HOME 0x02 // Set DDRAM address counter (AC) to "00H", and put cursor
Marcelocostanzo 1:08481151e25e 9 // to origin �Gthe content of DDRAM are not changed
Marcelocostanzo 1:08481151e25e 10 #define ENTRY_MODE_SET 0x04 // Set cursor position and display shift when doing write or read
Marcelocostanzo 1:08481151e25e 11 // operation
Marcelocostanzo 1:08481151e25e 12 #define DISPLAY_CONTROL 0x08 // D=1: Display ON, C=1: Cursor ON, B=1: Character Blink ON
Marcelocostanzo 1:08481151e25e 13 #define CURSOR_DISPLAY_CONTROL 0x10 // Cursor position and display shift control; the content of
Marcelocostanzo 1:08481151e25e 14 // DDRAM are not changed
Marcelocostanzo 1:08481151e25e 15 #define FUNCTION_SET 0x20 // DL=1 8-bit interface, DL=0 4-bit interface
Marcelocostanzo 1:08481151e25e 16 // RE=1: extended instruction, RE=0: basic instruction
Marcelocostanzo 1:08481151e25e 17 #define SET_CGRAM_ADDRESS 0x40 // Set CGRAM address to address counter (AC)
Marcelocostanzo 1:08481151e25e 18 // Make sure that in extended instruction SR=0
Marcelocostanzo 1:08481151e25e 19 #define SET_DDRAM_ADDRESS 0x80 // Set DDRAM address to address counter (AC)
Marcelocostanzo 1:08481151e25e 20 // AC6 is fixed to 0
Marcelocostanzo 1:08481151e25e 21
Marcelocostanzo 1:08481151e25e 22 // Instruction set 2: (RE=1: extended instruction)
Marcelocostanzo 1:08481151e25e 23 #define STANDBY 0x01 // Enter standby mode, any other instruction can terminate.
Marcelocostanzo 1:08481151e25e 24 // COM1�c32 are halted
Marcelocostanzo 1:08481151e25e 25 #define SCROLL_OR_RAM_ADDR_SEL 0x02 // SR=1: enable vertical scroll position
Marcelocostanzo 1:08481151e25e 26 // SR=0: enable CGRAM address (basic instruction)
Marcelocostanzo 1:08481151e25e 27 #define REVERSE_BY_LINE 0x04 // Select 1 out of 4 line (in DDRAM) and decide whether to
Marcelocostanzo 1:08481151e25e 28 // reverse the display by toggling this instruction
Marcelocostanzo 1:08481151e25e 29 // R1,R0 initial value is 0,0
Marcelocostanzo 1:08481151e25e 30 #define EXTENDED_FUNCTION_SET 0x20 // DL=1 :8-bit interface, DL=0 :4-bit interface
Marcelocostanzo 1:08481151e25e 31 // RE=1: extended instruction, RE=0: basic instruction
Marcelocostanzo 1:08481151e25e 32 #define SET_SCROLL_ADDRESS 0x40 // G=1 :graphic display ON, G=0 :graphic display OFF
Marcelocostanzo 1:08481151e25e 33 #define SET_GRAPHIC_RAM_ADDRESS 0x80 // Set GDRAM address to address counter (AC)
Marcelocostanzo 1:08481151e25e 34 // Set the vertical address first and followed the horizontal
Marcelocostanzo 1:08481151e25e 35 // address by consecutive writings
Marcelocostanzo 1:08481151e25e 36 // Vertical address range: AC5�cAC0, Horizontal address range: AC3�cAC0
Marcelocostanzo 1:08481151e25e 37
Marcelocostanzo 1:08481151e25e 38 // Parameters regarding Instruction Sets 1 & 2
Marcelocostanzo 1:08481151e25e 39 #define DISPLAY_SHIFT_S 0x01 // Set 1, ENTRY_MODE_SET
Marcelocostanzo 1:08481151e25e 40 #define INCREASE_DECREASE_ID 0x02 // Set 1, ENTRY_MODE_SET
Marcelocostanzo 1:08481151e25e 41 #define CURSOR_BLINK_ON_B 0x01 // Set 1, DISPLAY_CONTROL
Marcelocostanzo 1:08481151e25e 42 #define CURSOR_ON_C 0x02 // Set 1, DISPLAY_CONTROL
Marcelocostanzo 1:08481151e25e 43 #define DISPLAY_ON_D 0x04 // Set 1, DISPLAY_CONTROL
Marcelocostanzo 1:08481151e25e 44 #define SHIFT_RL 0x04 // Set 1, CURSOR_DISPLAY_CONTROL
Marcelocostanzo 1:08481151e25e 45 #define CURSOR_SC 0x08 // Set 1, CURSOR_DISPLAY_CONTROL
Marcelocostanzo 1:08481151e25e 46 #define EXTENDED_INSTRUCTION_RE 0x04 // Set 1, FUNCTION_SET; Set 2, EXTENDED_FUNTION_SET
Marcelocostanzo 1:08481151e25e 47 #define DATA_LENGTH_DL 0x10 // Set 1, FUNCTION_SET; Set 2, EXTENDED_FUNTION_SET
Marcelocostanzo 1:08481151e25e 48 #define REVERSE_BY_LINE_R0 0x01 // Set 2, REVERSE_BY_LINE
Marcelocostanzo 1:08481151e25e 49 #define REVERSE_BY_LINE_R1 0x02 // Set 2, REVERSE_BY_LINE
Marcelocostanzo 1:08481151e25e 50 #define EN_VERTICAL_SCROLL_SR 0x01 // Set 2, SCROLL_OR_RAM_ADDR_SEL
Marcelocostanzo 1:08481151e25e 51 #define GRAPHIC_ON_G 0x02 // Set 2, EXTENDED_FUNTION_SET
Marcelocostanzo 1:08481151e25e 52
Marcelocostanzo 1:08481151e25e 53 #define BUSY_FLAG_BF 0x80
Marcelocostanzo 1:08481151e25e 54
Marcelocostanzo 1:08481151e25e 55
Marcelocostanzo 1:08481151e25e 56 void ST7920_Init(void);
Marcelocostanzo 1:08481151e25e 57 void ST7920_Clear(void);
Marcelocostanzo 1:08481151e25e 58 void ST7920_SetGraphicsMode(void);
Marcelocostanzo 1:08481151e25e 59 void ST7920_SetTextMode(void);
Marcelocostanzo 1:08481151e25e 60 void ST7920_DrawHorizontalLine(uint8_t X, uint8_t Y, uint8_t LEN);
Marcelocostanzo 1:08481151e25e 61 void ST7920_DrawVerticalLine(uint8_t X, uint8_t Y, uint8_t LEN);
Marcelocostanzo 1:08481151e25e 62 void ST7920_DisplayString(int Row,int Column,unsigned char *ptr,int length);