/**
 * Keil project template
 *
 * Before you start, select your target, on the right of the "Load" button
 *
 * @author    Tilen MAJERLE
 * @email     tilen@majerle.eu
 * @website   http://stm32f4-discovery.net
 * @ide       Keil uVision 5
 * @conf      PLL parameters are set in "Options for Target" -> "C/C++" -> "Defines"
 * @packs     STM32F4xx/STM32F7xx Keil packs are requred with HAL driver support
 * @stdperiph STM32F4xx/STM32F7xx HAL drivers required
 */
/* Include core modules */
#include "stm32fxxx_hal.h"
/* Include my libraries here */
#include "defines.h"
#include "tm_stm32_disco.h"
#include "tm_stm32_delay.h"
#include "tm_stm32_nrf24l01.h"
#include "tm_stm32_usart.h"

/* Receiver address */
uint8_t TxAddress[] = {
	0xE7,
	0xE7,
	0xE7,
	0xE7,
	0xE7
};
/* My address */
uint8_t MyAddress[] = {
	0x7E,
	0x7E,
	0x7E,
	0x7E,
	0x7E
};

/* Data received and data for send */
uint8_t dataOut[32], dataIn[32];

/* NRF transmission status */
TM_NRF24L01_Transmit_Status_t transmissionStatus;

int main(void) {
	/* Init system clock for maximum system speed */
	TM_RCC_InitSystem();
	
	/* Init HAL layer */
	HAL_Init();
	
	/* Init leds */
	TM_DISCO_LedInit();
	
	/* Init button */
	TM_DISCO_ButtonInit();
	
	/* Initialize USART, TX: PB6, RX: PB7 */
	TM_USART_Init(USART1, TM_USART_PinsPack_2, 115200);
	
	/* Initialize NRF24L01+ on channel 15 and 32bytes of payload */
	/* By default 2Mbps data rate and 0dBm output power */
	/* NRF24L01 goes to RX mode by default */
	TM_NRF24L01_Init(15, 32);
	
	/* Set RF settings, Data rate to 2Mbps, Output power to -18dBm */
	TM_NRF24L01_SetRF(TM_NRF24L01_DataRate_2M, TM_NRF24L01_OutputPower_M18dBm);
	
	/* Set my address, 5 bytes */
	TM_NRF24L01_SetMyAddress(MyAddress);
	
	/* Set TX address, 5 bytes */
	TM_NRF24L01_SetTxAddress(TxAddress);
	
	while (1) {
		/* If data is ready on NRF24L01+ */
		if (TM_NRF24L01_DataReady()) {
			/* Get data from NRF24L01+ */
			TM_NRF24L01_GetData(dataIn);
			
			/* Start send */
			TM_DISCO_LedOn(LED_GREEN);
			
			/* Send it back, automatically goes to TX mode */
			TM_NRF24L01_Transmit(dataIn);
			
			/* Wait for data to be sent */
			do {
				/* Wait till sending */
				transmissionStatus = TM_NRF24L01_GetTransmissionStatus();
			} while (transmissionStatus == TM_NRF24L01_Transmit_Status_Sending);
			
			/* Send done */
			TM_DISCO_LedOff(LED_GREEN);
			
			/* Go back to RX mode */
			TM_NRF24L01_PowerUpRx();		
		}
	}
}