a752c7ab
 elopes
add first test an...
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright (C) 2014 Freie Universitรคt Berlin
* Copyright (C) 2014 PHYTEC Messtechnik GmbH
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup board_pba-d-01
* @{
*
* @file
* @brief Board specific implementations for the Phytec PBA-D-01
* evaluation board for PWA-A-002 Module
*
* @author Johann Fischer <j.fischer@phytec.de>
*
* @}
*/
#include "board.h"
#include "bit.h"
#include "periph/gpio.h"
static inline void modem_clock_init(void)
{
/* Use the CLK_OUT of the modem as the clock source. */
/* Enable GPIO clock gates */
KW2XDRF_PORT_CLKEN();
KW2XDRF_CLK_CTRL_CLKEN();
/* Modem RST_B is connected to PTB19 and can be used to reset the modem. */
KW2XDRF_PORT_DEV->PCR[KW2XDRF_RST_PIN] = PORT_PCR_MUX(1);
bit_set32(&KW2XDRF_GPIO->PDDR, KW2XDRF_RST_PIN);
KW2XDRF_GPIO->PCOR = (1 << KW2XDRF_RST_PIN);
/* Modem GPIO5 is connected to PTC0 and can be used to select CLK_OUT frequency, */
/* set PTC0 high for CLK_OUT=32.787kHz and low for CLK_OUT=4MHz. */
KW2XDRF_CLK_CTRL_PORT_DEV->PCR[KW2XDRF_CLK_CTRL_PIN] = PORT_PCR_MUX(1);
bit_set32(&KW2XDRF_CLK_CTRL_GPIO->PDDR, KW2XDRF_CLK_CTRL_PIN);
KW2XDRF_CLK_CTRL_GPIO->PCOR = (1 << KW2XDRF_CLK_CTRL_PIN);
/* Modem IRQ_B is connected to PTB3, modem interrupt request to the MCU. */
KW2XDRF_PORT_DEV->PCR[KW2XDRF_IRQ_PIN] = PORT_PCR_MUX(1);
bit_clear32(&KW2XDRF_GPIO->PDDR, KW2XDRF_IRQ_PIN);
/* release the reset */
KW2XDRF_GPIO->PSOR = (1 << KW2XDRF_RST_PIN);
/* wait for modem IRQ_B interrupt request */
while (KW2XDRF_GPIO->PDIR & (1 << KW2XDRF_IRQ_PIN));
}
void board_init(void)
{
/* initialize the on-board LEDs */
gpio_init(LED0_PIN, GPIO_OUT);
gpio_set(LED0_PIN);
gpio_init(LED1_PIN, GPIO_OUT);
gpio_set(LED1_PIN);
gpio_init(LED2_PIN, GPIO_OUT);
gpio_set(LED2_PIN);
modem_clock_init();
/* initialize the CPU core */
cpu_init();
}
|