Firefly platform

Files
file	board.c
	Board-initialisation for the Zolertia's Firefly platform.
file	board.h
	Header file with definitions related to the I/O connections on the Zolertia's Firefly platform, Zoul-based.
file	board.c
	Board-initialisation for the Zolertia's Firefly platform.
file	board.h
	Header file with definitions related to the I/O connections on the Zolertia's Firefly platform, Zoul-based.

Functions
void	board_init ()
	Board specific iniatialisation.

UART configuration
On the Firefly, the UARTs are connected to the following ports/pins: UART0: RX: PA0, connected to CP2104 serial-to-usb converter TX pin TX: PA1, connected to CP2104 serial-to-usb converter RX pin UART1: RX: PC1 TX: PC0 CTS: not used, one suggestion however is to use PD1 RTS: not used, one suggestion however is to use PD0 We configure the port to use UART0 and UART1, CTS/RTS only for UART1, both without a HW pull-up resistor. UART0 is not exposed anywhere, UART1 pins are exposed over the JP3 connector.
#define	UART1_CTS_PORT   (-1)
	GPIO_D_NUM.
#define	UART1_CTS_PIN   (-1)
	1
#define	UART1_RTS_PORT   (-1)
	GPIO_D_NUM.
#define	UART1_RTS_PIN   (-1)
	0
#define	UART1_CTS_PORT   (-1)
	GPIO_D_NUM.
#define	UART1_CTS_PIN   (-1)
	1
#define	UART1_RTS_PORT   (-1)
	GPIO_D_NUM.
#define	UART1_RTS_PIN   (-1)
	0

ADC configuration
These values configure which CC2538 pins and ADC channels to use for the ADC inputs. There pins are suggested as they can be changed, but note that only pins from PA can be configured as ADC. ADC1: up to 3.3V. ADC2: up to 3.3V. ADC3: up to 3.3V. ADC4: up to 3.3V. ADC5: up to 3.3V. ADC6: up to 3.3V, shared with user button. Only ADC1 and ADC3 are enabled as default. The internal ADC reference is 1190mV, use either a voltage divider as input, or a different voltage reference, like AVDD5 or other externally (AIN7 or AIN6).
#define	ADC_SENSORS_PORT   GPIO_A_NUM
	ADC GPIO control port.
#define	ADC_SENSORS_ADC1_PIN   5
	ADC1 to PA5
#define	ADC_SENSORS_ADC2_PIN   4
	ADC2 to PA4
#define	ADC_SENSORS_ADC3_PIN   2
	ADC3 to PA2
#define	ADC_SENSORS_ADC4_PIN   6
	ADC4 to PA6
#define	ADC_SENSORS_ADC5_PIN   7
	ADC5 to PA7
#define	ADC_SENSORS_ADC6_PIN   (-1)
	ADC6 not declared
#define	ADC_SENSORS_MAX   5
	Maximum sensors
#define	ADC_SENSORS_PORT   GPIO_A_NUM
	ADC GPIO control port.
#define	ADC_SENSORS_ADC1_PIN   5
	ADC1 to PA5
#define	ADC_SENSORS_ADC2_PIN   4
	ADC2 to PA4
#define	ADC_SENSORS_ADC3_PIN   2
	ADC3 to PA2
#define	ADC_SENSORS_ADC4_PIN   6
	ADC4 to PA6
#define	ADC_SENSORS_ADC5_PIN   7
	ADC5 to PA7
#define	ADC_SENSORS_ADC6_PIN   (-1)
	ADC6 not declared
#define	ADC_SENSORS_MAX   5
	Maximum sensors

Firefly Button configuration
Buttons on the Firefly are connected as follows: BUTTON_USER -> PA3, S1 user button, shared with bootloader BUTTON_RESET -> RESET_N line
#define	BUTTON_USER_PORT   GPIO_A_NUM
	BUTTON_USER -> PA3.
#define	BUTTON_USER_PORT   GPIO_A_NUM
	BUTTON_USER -> PA3.

Detailed Description

The Zolertia Firefly is the most down-to-core development platform, exposing the Zoul core functionalities and features, with a slick design to allow a flexible and easier user experience.

Defines related to the Firefly platform: a Zoul-based breakout board

This file provides connectivity information on LEDs, Buttons, UART and other peripherals

This file can be used as the basis to configure other platforms using the cc2538 SoC.