mirror of
git://projects.qi-hardware.com/ben-wpan.git
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65912c2acb
Move board specific parts in board_$NAME.c/h for a little abstraction and less ifdef handling in common code.
103 lines
1.7 KiB
C
103 lines
1.7 KiB
C
/*
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* fw/board.c - Board-specific functions (for boot loader and application)
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*
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* Written 2011, 2013 by Werner Almesberger
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* Copyright 2011, 2013 Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <avr/boot.h>
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#define F_CPU 8000000UL
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#include <util/delay.h>
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#include "usb.h"
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#include "at86rf230.h"
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#include "board.h"
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#include "spi.h"
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uint8_t board_sernum[42] = { 42, USB_DT_STRING };
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void reset_rf(void)
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{
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/* set up all the outputs; default port value is 0 */
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DDRB = 0;
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DDRC = 0;
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DDRD = 0;
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PORTB = 0;
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PORTC = 0;
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PORTD = 0;
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OUT(LED);
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OUT(nRST_RF); /* this also resets the transceiver */
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OUT(SLP_TR);
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spi_init();
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/* AT86RF231 data sheet, 12.4.13, reset pulse width: 625 ns (min) */
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CLR(nRST_RF);
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_delay_us(2);
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SET(nRST_RF);
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/* 12.4.14: SPI access latency after reset: 625 ns (min) */
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_delay_us(2);
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/* we must restore TRX_CTRL_0 after each reset (9.6.4) */
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set_clkm();
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}
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void led(bool on)
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{
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if (on)
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SET(LED);
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else
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CLR(LED);
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}
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void panic(void)
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{
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cli();
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while (1) {
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SET(LED);
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_delay_ms(100);
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CLR(LED);
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_delay_ms(100);
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}
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}
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static char hex(uint8_t nibble)
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{
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return nibble < 10 ? '0'+nibble : 'a'+nibble-10;
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}
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void get_sernum(void)
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{
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uint8_t sig;
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uint8_t i;
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for (i = 0; i != 10; i++) {
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sig = boot_signature_byte_get(i+0xe);
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board_sernum[(i << 2)+2] = hex(sig >> 4);
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board_sernum[(i << 2)+4] = hex(sig & 0xf);
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}
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}
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