STK541
[Board Definitions]

---

Detailed Description

This board is describes the STK541 that comes with Atmels ATAVRRZ541 Packet Sniffer Kit.

The board wiring fits the Atmel radio development kit hardware and compatibles. It uses a FTDI245 chip as Host Interface.

The wiring of the radio and the ATmega is shown below:

     AVR      RF230
     ---      -----
     PB4  -->  SLPTR
     P??  <--  MCLK
     PD4  <--  IRQ (ICP1)
     PB5  -->  RSTN
     PB0  -->  SS
     PB2  -->  MOSI
     PB3  <--  MISO
     PB1  -->  SCK

    The STK541 has no LEDS and Keys, so we define the ressources
    from the  RCB230 here.

    KEY: PE5
    LEDS: PE2:PE4

    DBG: PD0 - connector X20:2 (ground X20:1)

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

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

    


Atmel STK541 and Radio Controller Board
    

Defines
#define	BOARD_TYPE   (STK_541)
#define	MAX_FRAME_SIZE   (127)
#define	TIMER_INIT()
#define	TIMER_IRQ_vect   TIMER1_OVF_vect

---

Define Documentation

#define BOARD_TYPE   (STK_541)

ID String for this hardware

• stk541 is an Atmel STK541 equipped with an RCB230 with AT86RF230 Rev.A
• stk541b is an Atmel STK541 equipped with an RCB230 with AT86RF230 Rev.B

#define MAX_FRAME_SIZE   (127)

maximum allowed frame size

 

#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