#include "LPC8xx.h"
#include "syscon.h"
#include "swm.h"
#include "spi.h"
#include "uart.h"
#include "utilities.h"
#include "chip_setup.h"
#include "lib_ENS_II1_lcd.h"


#define SPIBAUD 115200
#define SCK_PIN P0_19
#define MOSI_PIN P0_18
#define SSEL_PIN P0_21

//
// Main routine
//
int main(void) {

	// Enable clocks to relevant peripherals
	LPC_SYSCON->SYSAHBCLKCTRL[0] |= (SPI0|SWM);

	// Configure the SWM (see peripherals_lib and swm.h)
	ConfigSWM(SPI0_SCK, SCK_PIN);
	ConfigSWM(SPI0_MOSI, MOSI_PIN);
	ConfigSWM(SPI0_SSEL0, SSEL_PIN);

	// Give SPI0 a reset
	LPC_SYSCON->PRESETCTRL[0] &= (SPI0_RST_N);
	LPC_SYSCON->PRESETCTRL[0] |= ~(SPI0_RST_N);

	// Enable main_clk as function clock to SPI
	LPC_SYSCON->SPI0CLKSEL = FCLKSEL_MAIN_CLK;

	// Get main_clk frequency
	SystemCoreClockUpdate();

	// Configure the SPI master's clock divider (value written to DIV divides by value+1)
	LPC_SPI0->DIV = (main_clk/SPIBAUD) - 1;

	// Configure the CFG register:
	// Enable=true, master, no LSB first, CPHA=0, CPOL=0, no loop-back, SSEL active low
	LPC_SPI0->CFG = SPI_CFG_ENABLE | SPI_CFG_MASTER;

	// Configure the SPI delay register (DLY)
	// Pre-delay = 0 clocks, post-delay = 0 clocks, frame-delay = 0 clocks, transfer-delay = 0 clocks
	LPC_SPI0->DLY = 0x0000;
	
	// Configure the SPI control register
	// Master: End-of-frame true, End-of-transfer true, RXIGNORE true, LEN 8 bits.
	LPC_SPI0->TXCTL = SPI_CTL_EOF | SPI_CTL_EOT | SPI_CTL_RXIGNORE | SPI_CTL_LEN(8);

	// Init LCD Screen
	init_lcd();
	lcd_puts("Test e-paper");
	lcd_position(1, 0);
	lcd_puts("Init ok");

	while(1) {

	};

} // end of main