- TextLCD::TextLCD(PinName rs, PinName e, PinName d4, PinName d5,
- PinName d6, PinName d7, LCDType type) : _rs(rs),
- _e(e), _d(d4, d5, d6, d7),
- _type(type) {
- _e = 1;
- _rs = 0; // command mode
- wait_us(1500); // Wait 15ms to ensure powered up
- /* send "Display Settings" 3 times (Only top nibble of 0x30 as we've got 4-bit bus)*/
- for (int i=0; i<3; i++) {
- writeByte(0x3);
- wait_us(1640); // this command takes 1.64ms, so wait for it
- }
- writeByte(0x2); // 4-bit mode
- wait_us(40); // most instructions take 40us
- writeCommand(0x28); // Function set 001 BW N F - -
- writeCommand(0x0C);
- writeCommand(0x6); // Cursor Direction and Display Shift : 0000 01 CD S (CD 0-left, 1-right S(hift) 0-no, 1-yes
- cls();
- }
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这个原来是Mbed OS 的函数，改成 HAl函数怎么搞？希望大师指导指导
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