微處理器 - STCmicro STC15W204S - Assembly - Show PNG

參考資訊：
https://github.com/noopkat/png-to-lcd
https://www.stcmicro.com/datasheet/STC15F2K60S2-en.pdf
https://cdn-shop.adafruit.com/datasheets/SSD1306.pdf
https://github.com/adafruit/Adafruit_SSD1306/blob/master/Adafruit_SSD1306.cpp

PNG轉LCD

$ sudo apt-get install nodejs npm -y
$ npm install tape
$ cd
$ git clone https://github.com/noopkat/png-to-lcd
$ cd png-to-lcd/test
$ vim mytest.js
    var pngtolcd = require('../png-to-lcd');
    pngtolcd('cat2.png', true, function(err, buffer) {
        console.log(buffer.toString('hex'));
    });

$ vim run.py
    #!/usr/bin/python
    import os
    import sys 
    import commands

    r = commands.getoutput('node mytest.js')

    c = 'db '
    cnt = 0 
    col = 0 
    for x in r:
        cnt = cnt + 1 
        if cnt == 1:
            c = c + '0x'
        c = c + str(x)

        if cnt >= 2:
            cnt = 0 
            col = col + 1 
            if col >= 32: 
                col = 0 
                print c
                c = 'db '
            else:
                c = c + ','  

$ chmod a+x ./run.py
$ ./run.py

P.S. 輸出的字串就是DB

main.s

    i2c_sda         set 0xcc
    i2c_scl         set 0xcd

    i2c_addr        equ 0x78
    lcd_width       equ 128
    lcd_height      equ 64

    cmd_contrast    equ 0x81
    cmd_disp_resume equ 0xa4
    cmd_normal_disp equ 0xa6
    cmd_invert_disp equ 0xa7
    cmd_disp_off    equ 0xae
    cmd_disp_on     equ 0xaf
    cmd_disp_offset equ 0xd3
    cmd_com_pins    equ 0xda
    cmd_vcom_detect equ 0xdb
    cmd_clock_div   equ 0xd5
    cmd_pre_charge  equ 0xd9
    cmd_multiplex   equ 0xa8
    cmd_start_line  equ 0x40
    cmd_memory_mode equ 0x20
    cmd_column_addr equ 0x21
    cmd_page_addr   equ 0x22
    cmd_scan_dec    equ 0xc8
    cmd_seg_remap   equ 0xa0
    cmd_charge_pump equ 0x8d

    .org 0h
    jmp _start

    .org 100h
_start:
    call ssd1306_init
    call ssd1306_set_col_addr
    call ssd1306_set_page_addr
  
    mov dptr, #png
    mov r4, #64
m0:
    call i2c_start
    mov a, #i2c_addr
    call i2c_write
    mov a, #40h
    call i2c_write
    mov r5, #16
m1:
    clr a
    movc a, @a+dptr
    inc dptr
    call i2c_write
    djnz r5, m1
    djnz r4, m0
    call i2c_stop
    jmp $

delay:
    mov r0, #10
    djnz r0, $
    ret

i2c_start:
    setb i2c_sda
    setb i2c_scl
    call delay
    clr i2c_sda
    call delay
    clr i2c_scl
    ret

i2c_stop:
    call delay
    clr i2c_sda
    call delay
    setb i2c_scl
    call delay
    setb i2c_sda
    ret

i2c_write:
    push 4
    push 5
    mov r4, #8
    mov r5, a
i0:
    mov a, r5
    rlc a
    mov r5, a
    jc i1
    clr i2c_sda
    sjmp i2
i1:
    setb i2c_sda
i2:
    call delay
    setb i2c_scl
    call delay
    clr i2c_scl
    djnz r4, i0
  
    call delay
    setb i2c_sda
    call delay
    setb i2c_scl
    call delay
    mov c, i2c_sda
    call delay
    clr i2c_scl
    pop acc
    mov r5, a
    pop acc
    mov r4, a
    ret

send_cmd:
    push 4
    mov r4, a
    call i2c_start
    mov a, #i2c_addr
    call i2c_write
    mov a, #0
    call i2c_write
    mov a, r4
    call i2c_write
    call i2c_stop
    pop acc
    mov r4, a
    ret

send_data:
    push 4
    mov r4, a
    call i2c_start
    mov a, #i2c_addr
    call i2c_write
    mov a, #40h
    call i2c_write
    mov a, r4
    call i2c_write
    call i2c_stop
    pop acc
    mov r4, a
    ret

ssd1306_init:
    mov a, #cmd_disp_off
    call send_cmd
    mov a, #cmd_clock_div
    call send_cmd
    mov a, #80h
    call send_cmd
    mov a, #cmd_multiplex
    call send_cmd
    mov a, #3fh
    call send_cmd
    mov a, #cmd_disp_offset
    call send_cmd
    mov a, #0
    call send_cmd
    mov a, #cmd_start_line
    call send_cmd
    mov a, #cmd_charge_pump
    call send_cmd
    mov a, #14h
    call send_cmd
    mov a, #cmd_memory_mode
    call send_cmd
    mov a, #0
    call send_cmd
    mov a, #cmd_seg_remap | 1
    call send_cmd
    mov a, #cmd_scan_dec
    call send_cmd
    mov a, #cmd_com_pins
    call send_cmd
    mov a, #12h
    call send_cmd
    mov a, #cmd_contrast
    call send_cmd
    mov a, #0cfh
    call send_cmd
    mov a, #cmd_pre_charge
    call send_cmd
    mov a, #0f1h
    call send_cmd
    mov a, #cmd_vcom_detect
    call send_cmd
    mov a, #40h
    call send_cmd
    mov a, #cmd_disp_resume
    call send_cmd
    mov a, #cmd_normal_disp
    call send_cmd
    mov a, #cmd_disp_on
    call send_cmd
    ret

ssd1306_set_col_addr:
    mov a, #cmd_column_addr
    call send_cmd
    mov a, #0
    call send_cmd
    mov a, #lcd_width - 1
    call send_cmd
    ret
 
ssd1306_set_page_addr:
    mov a, #cmd_page_addr
    call send_cmd
    mov a, #0
    call send_cmd
    mov a, #(lcd_height / 8) - 1
    call send_cmd
    ret

png:
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x20,0x00,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x04,0x40,0x00
    db 0x14,0x00,0x42,0x10,0xa4,0x00,0x12,0x00,0x00,0x00,0x00,0x90,0x00,0x00,0x14,0x40,0x88,0x20,0x80,0x28,0x00,0x50,0x00,0xa0,0x00,0x48,0x00,0x00,0x40,0x00,0x40,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x08,0x40,0x12,0xa4,0x59,0xa6,0x28,0x40,0x14,0x00,0x40,0x10,0x84,0x00,0x10,0x80,0x00,0x00,0x10,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x80,0x00,0x40,0x80,0x00,0x80,0x40,0x00,0x00,0x00,0x00,0x40,0x08,0x00,0x00,0x00,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x08,0x00,0x00,0x00,0x00,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00
    db 0x8a,0x10,0x02,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x48,0x00,0x22,0x00,0x12,0x00,0x15,0x00,0x40,0x14,0x80,0x2a,0x40,0x82,0x14,0x40,0x02,0x90
    db 0x00,0x10,0x02,0x20,0x00,0x20,0x08,0x80,0x20,0x88,0x20,0xca,0x35,0xc8,0x12,0xe5,0x1a,0xed,0x10,0x85,0x20,0x02,0x48,0x00,0x12,0x40,0x08,0x00,0x00,0x20,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0xf8,0x44,0xb8,0x42,0xa8,0x50,0x00,0x04,0x08,0x01,0xc8,0x28,0xd0,0x20,0xe0,0x00,0x40,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x80,0x00,0x40,0x00,0xa0,0x00,0x90,0x00,0x82,0x90,0x49,0xf0,0x42,0x90,0x6a,0xe0,0x69,0x80,0x08,0x02,0x10,0x09,0x22,0x08,0x00,0x2a,0x00,0x42
    db 0x00,0x44,0x01,0x52,0x00,0xaa,0x40,0x98,0x64,0xd1,0xae,0x51,0xaf,0x58,0xb7,0x68,0x97,0x28,0x93,0x04,0x00,0xa9,0x00,0x45,0x10,0x80,0x25,0x00,0x10,0x00,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x01,0x44,0x00,0x90,0x00,0x41,0x83,0x09,0x06,0x1d,0x1f,0x2c,0x38,0x16,0x3c,0x2b,0x16,0x1d,0x0b,0x04,0x03,0x00,0x00,0x00
    db 0x00,0x00,0x00,0x02,0x00,0x10,0x44,0x00,0x20,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x80,0x00,0x00,0x00,0x00,0x40,0x80,0x00,0x20,0x40,0x00,0x50,0x00
    db 0xa0,0x08,0x02,0x00,0x0e,0x78,0xf7,0xac,0xfb,0xd6,0x68,0xc0,0xc1,0xa1,0xfc,0xab,0xff,0x6a,0xff,0x2d,0x1b,0x06,0x04,0x00,0x20,0x40,0x1a,0x44,0x11,0x24,0x00,0x10
    db 0x00,0x04,0x00,0x28,0xc2,0x08,0x42,0x08,0xb2,0x04,0xeb,0x14,0xeb,0x55,0xbb,0x44,0x12,0x80,0x04,0x20,0x02,0x10,0x44,0x01,0x14,0x40,0x02,0x00,0x00,0x00,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x05,0x00,0x09,0x82,0x00,0x15,0x40,0x14,0x80,0x24,0x90,0x04,0x28,0x00,0x48,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x01,0x24,0x01,0x0a,0x21,0x04,0x08,0x11,0x42,0x08,0x20,0x10,0x40,0x80,0x2a,0x40,0x95,0x20,0x44,0xa8,0x10,0xa0,0x01,0x24,0x00,0x05,0x00
    db 0x00,0x80,0x10,0x00,0x20,0xd0,0x20,0x81,0x21,0x83,0x23,0x43,0x22,0x49,0xa3,0x01,0xa1,0x50,0x00,0x28,0x50,0x04,0x20,0x0d,0x40,0x0b,0x00,0x25,0x80,0x00,0x00,0x00
    db 0x84,0x00,0x42,0x90,0x0a,0xa4,0x51,0x8a,0x24,0xd9,0xa6,0x59,0xa6,0x09,0x42,0x10,0x04,0x80,0x02,0x20,0x81,0x04,0x10,0x41,0x04,0x20,0x00,0x00,0x00,0x00,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x02,0x00,0x00,0x09,0x00,0x00,0x44,0x00,0x01,0x10,0x04,0x20,0x02,0x08,0x01,0x00,0x20,0x04,0x00
    db 0x02,0x10,0x01,0x00,0x00,0x00,0x12,0x44,0x08,0x40,0x14,0x00,0x74,0x81,0x54,0xa9,0x56,0xe9,0x96,0xe9,0xb7,0xde,0xb9,0x6e,0xd8,0x22,0x90,0x00,0x02,0x00,0x40,0x14
    db 0x40,0x08,0x22,0x40,0x0a,0x00,0x2a,0x00,0x1a,0x20,0x81,0x0a,0x21,0x08,0x42,0x04,0x00,0x22,0x00,0x92,0x00,0x08,0x00,0x24,0x00,0x00,0x44,0x00,0x88,0x20,0x85,0x50
    db 0x0a,0x20,0x8a,0x04,0x92,0x28,0x42,0xac,0x51,0x06,0x59,0x02,0x00,0x14,0x40,0x01,0x20,0x00,0x08,0x80,0x04,0x20,0x00,0x89,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x10,0x00,0x42,0x00,0x08,0x20
    db 0x00,0x0a,0x20,0x00,0x00,0x00,0x00,0x10,0x28,0x00,0x29,0x12,0x24,0x08,0x04,0x2b,0x46,0x01,0x46,0x09,0x26,0x09,0x16,0x2d,0x13,0x7e,0x94,0x60,0x00,0x40,0x84,0x28
    db 0x53,0x24,0x49,0x10,0x21,0x48,0x02,0x50,0x01,0x20,0x04,0x00,0x01,0x08,0x10,0x00,0x29,0x40,0x02,0x20,0x00,0x04,0x01,0x28,0x41,0x00,0x2a,0x00,0x0a,0x00,0x02,0x00
    db 0x80,0x20,0x84,0x20,0x4a,0x10,0x8a,0x05,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
    db 0x00,0x00,0x00,0x00,0x01,0x00,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x40,0x01,0x08,0x20,0x00,0x02,0x00
    db 0x00,0x01,0x04,0x01,0x14,0x01,0x04,0x10,0x01,0x00,0x01,0x04,0x80,0x00,0x00,0x00,0x00,0xa2,0x00,0x08,0x01,0x00,0x00,0x01,0x00,0x00,0x00,0x80,0x00,0x20,0x4a,0x00
    db 0x2a,0x00,0x02,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
    .end

編譯

$ mcu8051ide --compile main.s

燒錄

$ sudo stcgal -P stc15 main.hex

完成