ft843_with_tm4c123gxl

Thank you - appreciated - we've reviewed. This appears to be the display & Controller developed ~ a year past by "FTDI."   As such - I recall it being less expensive from its originator. (FTDI)

That (new) firm is upon an "island continent" - unless you share that geography - you'll add greatly to delivery time & cost.

For a "first project" that display is (likely) to over-challenge - might you consider a 2x16 Text Lcd Module, instead?   The learning you gain with that simpler display will advance your skills, understanding & confidence.

Very few "climbers" START at Kilimanjaro - preferring faster, safer, easier (initial) climbs.   Such advice may apply to you here, too...

Hi guys

I made some practice with the lcd_display and the launchpad TM4C123G,  I think what now I can begin with the ft843 display, I will do some test and I will comment, because I need make a little and funny project with this FT.

regards!

I share my "start lcd display code"  if this helps to someone.

/*
 * - TEST: LCD_2x16 Display on Tiva_c TM4C123GH6PM
 * - AUTOR: Alberto A.B. Nino	/,,/
 *
 *	 VSS	--	GND
 *	 VDD	--	VCC
 *	 VEE	--	GND (contrast, pot 10K or resitor 1K)
 *
 *	 DB7	--	PB7 < if you want  a 4bit's interfaz.
 *	 DB6	--	PB6 < conect DB7 - DB4.
 *	 DB5	--	PB5 <  "        "
 *	 DB4	--	PB4 <  "   		"
 *	 DB3	--	PB3
 *	 DB2	--	PB2
 *	 DB1	--	PB1
 *	 DB0	--	PB0
 *
 *	 E	--	PE3
 *	 R/W	--	PE4
 *	 RS	--	PE5
 *
 *	 LED+	--	3.3V
 *	 LED-	--	GND
 */

#include <stdint.h>
#include <stdbool.h>
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "inc/hw_gpio.h"
#include "driverlib/debug.h"
#include "driverlib/fpu.h"
#include "driverlib/gpio.h"
#include "driverlib/pin_map.h"
#include "driverlib/rom.h"
#include "driverlib/rom_map.h"
#include "driverlib/sysctl.h"

// instructions for init display.
#define RST_FUNC 	0x30 // step0: for reset sequence.
#define SET_FUNC 	0x38 // step1: DL- 1 interface de 8bits, N- 0 usara una linea, F- 0 fuente 5x7.
#define DISP_SWH_OF 0x08 // step2: D- 0 display off, C- 0 cursor off, B- 0 flash character off.
#define DISP_CLR	0x01 // ster3: clear all display.
#define SET_MODE	0x06 // step4: ID- 1 increment mode, S- 0 hold data on display.
#define DISP_SWH_ON	0x0C // step5: D- 1 display on, C- 0 cursor off, B- 0 flash character off.

// set pins
#define RW	GPIO_PIN_4
#define RS	GPIO_PIN_5
#define E	GPIO_PIN_3

// functions
void init_display(void);	//this function starts the LCD display.
void send_dat_cmd(uint8_t instruct, unsigned int dat_or_cmd); // this function sends a command or a data.

// variables
int i,j;
unsigned char msg1[] = {"Hello world"};
unsigned char msg2[] = {"This is a test in c"};

int main()
{
	// set MCU's ports.
	ROM_SysCtlClockSet(SYSCTL_SYSDIV_2_5|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN); //80MHZ

	ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
	ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
	ROM_GPIOPinTypeGPIOOutput(GPIO_PORTE_BASE, RW | RS | E);	//set port_E and all Port_B as outputs.
	ROM_GPIOPinTypeGPIOOutput(GPIO_PORTB_BASE, GPIO_PIN_7 | GPIO_PIN_6 | GPIO_PIN_5 | GPIO_PIN_4 |
								GPIO_PIN_3 | GPIO_PIN_2 | GPIO_PIN_1 | GPIO_PIN_0);
	//init sequence.
	init_display();

	//SEND_MESSAGES.
		//clear display.
		send_dat_cmd(DISP_CLR,0);
		ROM_SysCtlDelay((SysCtlClockGet()*0.005)/3);	//5ms
		//send address1 on 1st line.
		send_dat_cmd(0x82,0);
		ROM_SysCtlDelay((SysCtlClockGet()*0.00008)/3);	//80us
		//send data1.
		for(i = 0; i <= 10; ++i)
			send_dat_cmd(msg1[i],1);

		//send data2.
		for(j = 0; j <= 20; ++j)
		{
			//send address2 on 2nd line.
			send_dat_cmd(0xC0,0);
			ROM_SysCtlDelay((SysCtlClockGet()*0.00008)/3);	//80us
			//send data2 and slide it.
			if(j < 20)
			{
				for(i = j; i <= 18; ++i)
					send_dat_cmd(msg2[i],1);
			}
			else
			{
				for(i = 0; i <= 18; ++i)
					send_dat_cmd(msg2[i],1);
			}
			send_dat_cmd(' ',1);
			ROM_SysCtlDelay((SysCtlClockGet()*0.5)/3);	//500ms
		}
}

void send_dat_cmd(uint8_t instruct, unsigned int dat_or_cmd)
{
	ROM_GPIOPinWrite(GPIO_PORTE_BASE, RW, 0);	// RW = 0 will make a write.

	if (dat_or_cmd == 1)
	{
		ROM_GPIOPinWrite(GPIO_PORTE_BASE, RS, RS);	//RS = 1 will send a data.
	}
	else
	{
		ROM_GPIOPinWrite(GPIO_PORTE_BASE, RS, 0);	//RS = 0 will send a command.
	}

	ROM_GPIOPinWrite(GPIO_PORTE_BASE, E, 0);	// E = 0 makes sure that enable signal is low.

	ROM_GPIOPinWrite(GPIO_PORTB_BASE, GPIO_PIN_7 | GPIO_PIN_6 | GPIO_PIN_5 | // this will send the data or instruction.
						GPIO_PIN_4 | GPIO_PIN_3 | GPIO_PIN_2 | GPIO_PIN_1 | GPIO_PIN_0, instruct);

	ROM_GPIOPinWrite(GPIO_PORTE_BASE, E, E);	//E = 1 makes that enable signal is high for a falling edge.
	ROM_SysCtlDelay((SysCtlClockGet()*0.001)/3);	//1mS
	ROM_GPIOPinWrite(GPIO_PORTE_BASE, E, 0);	//E = 0 makes that enable signal is low and the data or instructions was send.
	ROM_SysCtlDelay((SysCtlClockGet()*0.001)/3);	//1ms
}

void init_display()
{
	// INIT DISPLAY
				//power-up delay
		ROM_SysCtlDelay((SysCtlClockGet()*0.05)/3);		//50mS - wait time > 15ms
		ROM_GPIOPinWrite(GPIO_PORTE_BASE, RW | RS | E, 0); //this makes sure that RW, RS and E signals are low.
				//reset sequence
		send_dat_cmd(RST_FUNC,0);						// first command of reset sequence
		ROM_SysCtlDelay((SysCtlClockGet()*0.01)/3);		//10mS - wait time > 4.1ms
		send_dat_cmd(RST_FUNC,0);						// second command of reset sequence
		ROM_SysCtlDelay((SysCtlClockGet()*0.0002)/3);	//200us - wait time > 100us
		send_dat_cmd(RST_FUNC,0);						// third command of reset sequence
		ROM_SysCtlDelay((SysCtlClockGet()*0.0002)/3);	//200us this "wait time" is omitted in the datasheet
				//set display
		send_dat_cmd(SET_FUNC,0);		//set DL (4 or 8 bits interfaz), N (1 or 2 lines), F (font 5x7 or 5x10).
		ROM_SysCtlDelay((SysCtlClockGet()*0.00008)/3);	//80us (wait time > 40us)
		send_dat_cmd(DISP_SWH_OF,0);	//display off
		ROM_SysCtlDelay((SysCtlClockGet()*0.00008)/3);	//80us (wait time > 40us)
		send_dat_cmd(DISP_CLR,0);		//clear all display
		ROM_SysCtlDelay((SysCtlClockGet()*0.005)/3);	//5ms (wait time > 1.64ms)
		send_dat_cmd(SET_MODE,0);		//set the mode DI and S
		ROM_SysCtlDelay((SysCtlClockGet()*0.00008)/3);	//80us (wait time > 40us)
		send_dat_cmd(DISP_SWH_ON,0);	//display on
		ROM_SysCtlDelay((SysCtlClockGet()*0.00008)/3);	//80us (wait time > 40us)
}