This board is describes the Sensor Terminal Board from Dresden Electronic. It is a carrier board for the RCB family. More...

Defines
#define	DEFAULT_SPI_RATE (SPI_RATE_1_2)
#define	FT245_DDR DDRE
#define	FT245_INIT()
#define	FT245_PIN PINE
#define	FT245_RX_HAS_DATA() (0 == (FT245_PIN & FT245_RXF))
#define	FT245_RXF _BV(7)
#define	FT245_TX_IS_BLOCKED() (0 != (FT245_PIN & FT245_TXE))
#define	FT245_TXE _BV(6)
#define	HIF_IO_ENABLE hif_mmio_init
#define	HIF_NO_DATA (0x0100)
#define	HIF_TYPE (HIF_FT245)
#define	HIF_USB_READ() hif_usb_read()
#define	HIF_USB_WRITE(x) hif_usb_write(x)
#define	HWTIMER_REG (TCNT1)
#define	HWTIMER_TICK ((1.0*HWTMR_PRESCALE)/F_CPU)
#define	HWTIMER_TICK_NB (0xFFFFUL+1)
#define	HWTMR_PRESCALE (1)
#define	INVERSE_KEYS (0)
#define	KEY_INIT hif_mmio_init
#define	LED_CLR(ln)
#define	LED_GET_VALUE() ((~LED_SHADOW & LED_MASK) >> LED_SHIFT)
#define	LED_INIT()
#define	LED_MASK (0x03)
#define	LED_NUMBER (2)
#define	LED_SET(ln)
#define	LED_SET_VALUE(x)
#define	LED_SHADOW GPIOR2
#define	LED_SHIFT (0)
#define	LED_TOGGLE(ln)
#define	LED_VAL(msk, val)
#define	LEDS_INVERSE (1)
#define	MASK_KEY (0x1)
#define	PIN_KEY (hif_key_read())
#define	PULLUP_KEYS (0)
#define	SHIFT_KEY (0)
#define	TIMER_INIT()
#define	TIMER_IRQ_vect TIMER1_OVF_vect
#define	TIMER_POOL_SIZE (4)
#define	TIMER_TICK (HWTIMER_TICK_NB * HWTIMER_TICK)

Detailed Description

This board is describes the Sensor Terminal Board from Dresden Electronic. It is a carrier board for the RCB family.

The Sensor Terminal Board is a carrier board for the radio controller board family.

The wiring of this module is very specific; normally, all the functionality on the Sensor Terminal Board (FTDI, LEDs, button) is controlled by memory-mapped IO, using the external memory interface of the ATmegas. This is not possible with the ATmega128RFA1 as it does not feature an external memory interface. For that reason, GPIO lines have been re-wired to allow an external memory interface emulation. The schematics of the RCB128RFA1 document the following wiring:

RCB2xx        | Pin           | RCB128RFA1   | Remark
------------------------------------------------------------------
PA0             EXT1.23         PB0          \
PA1             EXT1.24         PB1          |  This is the
PA2             EXT1.25         PB2          |  multiplexed
PA3             EXT1.26         PB3          >  data/low address
PA4             EXT1.27         PB4          |  bus of the classic
PA5             EXT1.28         PB5          |  XMEM interface
PA6             EXT1.29         PB6          |
PA7             EXT1.30         PB7          /
PE4             EXT1.6          RSTON        Reset output
PE5             EXT1.5          TST          Used for "HV" prog
PC4             EXT0.25         PD4          \  Matches A12...A15
PC5             EXT0.26         PD5          |  of normal address bus;
PC6             EXT0.27         PD6          >  used to distinguish
PC7             EXT0.28         PD7          /  FTDI vs. LED vs. button
PG0             EXT0.17         PE4          xmem /WR
PG1             EXT0.18         PE5          xmem /RD
PB6             EXT0.1          PG0          GPIO
PB7             EXT0.2          PG1          GPIO
XTAL1           EXT0.7          CLKI

In addition, the standard STB pin mapping is retained for:

PE7 FT245 /RXF PE6 FT245 /TXE PG2 ALE

The STBxxx has memory mapped LEDS and Keys. KEY: memory mapped on external memory bus address 0x4000 LEDS

2 x memory mapped at 0x4000 (Option 1)
3 x IO mapped at PE2:PE4 (Option 2)

You can select between using the LEDs on the RCB or on the STB. In order to use the RCB LEDS, you have to define the macro USE_RCB_LEDS.

The LEDs on STB have a write-only memory interface, so we can't read back the LED status. So we need to have a shadow register, which stores the current LED state. Since the board interface consists only of a header file, we use register GPIO2 on ATmega128RFA1 for shadowing, because it would be hard to ensure the single instantiation of a global variable from a header file, which is used in many module files.

Fuses/Locks: LF: 0xe2 - 8MHz internal RC Osc. HF: 0x11 - without boot loader HF: 0x10 - with boot loader EF: 0xff LOCK: 0xef - protection of boot section

Original Settings w/ rdk231 LF: 0x61 HF: 0x91 EF: 0xfe

Bootloader: Start at byte=0x1e000, address=0xf000, size = 4096 instructions/ 8192 bytes

Build Options

stb128rfa1 : STB + RCB128RFA1

Define Documentation

#define DEFAULT_SPI_RATE (SPI_RATE_1_2)

ID String for this hardware

#define FT245_INIT ( )

Value:

do { \
           FT245_DDR &= ~(FT245_TXE|FT245_RXF);\
        } while(0)

#define LED_CLR ( ln )

Value:

do{\
            LED_SHADOW |= (_BV(ln+LED_SHIFT) & LED_MASK);\
            hif_led_write(LED_SHADOW);\
        }while(0)

#define LED_INIT ( )

Value:

do{\
            hif_mmio_init(); \
            LED_SHADOW = LED_MASK;\
            hif_led_write(LED_SHADOW);        \
        }while(0)

#define LED_SET ( ln )

Value:

do{\
            LED_SHADOW &= ~(_BV(ln+LED_SHIFT) & LED_MASK);\
            hif_led_write(LED_SHADOW);\
        }while(0)

#define LED_SET_VALUE ( x )

Value:

do{\
            LED_SHADOW = (LED_SHADOW & ~LED_MASK) | ((~x<<LED_SHIFT) & LED_MASK);\
            hif_led_write(LED_SHADOW);\
        }while(0)

#define LED_TOGGLE ( ln )

Value:

do{\
            LED_SHADOW ^= (_BV(ln+LED_SHIFT) & LED_MASK);\
            hif_led_write(LED_SHADOW);\
        }while(0)

#define LED_VAL	(	msk,
		val
	)

Value:

do{\
            LED_SHADOW &= ~(LED_MASK|(msk<<LED_SHIFT)); \
            LED_SHADOW |= ~(val & (LED_MASK|msk));\
            hif_led_write(LED_SHADOW);\
        }while(0)

#define TIMER_INIT ( )

Value:

do{ \
        TCCR1B |= _BV(CS10); \
        TIMSK1 |= _BV(TOIE1); \
    }while(0)

Intialization of the hardware timer T1 (16bit)

CS1[2:0] = 1 : Prescaler = 1
WGM1[3:0] = 0 : Mode = 4 : CTC operation

Timer is clocked at F_CPU, and TIMER_IRQ_vect is called every 65535 ticks.

#define TIMER_IRQ_vect TIMER1_OVF_vect

Vector for Timer IRQ routine

board_stbrfa1.h File Reference

Defines

Detailed Description

Define Documentation