1 package edu.berkeley.obits.device.atmel;
5 public class FtdiChip {
7 protected int bits = 0;
8 protected SWIGTYPE_p_ftdi_context context = example.new_ftdi_context();
11 example.ftdi_init(context);
12 example.ftdi_usb_open(context, 0x6666, 0x3133);
13 example.ftdi_set_baudrate(context, 750 * 1000);
14 example.ftdi_set_line_property(context, 8, 0, 0);
17 public synchronized int readPins() {
18 byte[] b = new byte[1];
19 example.ftdi_read_pins(context, b);
22 ByteArrayOutputStream baos = new ByteArrayOutputStream();
24 byte[] bytes = baos.toByteArray();
25 baos = new ByteArrayOutputStream();
26 dbang(bytes, bytes.length);
29 public boolean buffered = false;
30 protected static int mask =
37 protected static int dmask =
47 public synchronized void purge() {
48 example.ftdi_usb_purge_buffers(context);
50 int result = example.ftdi_setflowctrl(context, (1 << 8));
52 throw new RuntimeException("ftdi_setflowcontrol() returned " + result);
54 public synchronized void uart() {
55 int result = example.ftdi_set_bitmode(context, (short)0, (short)0x00);
57 throw new RuntimeException("ftdi_set_bitmode() returned " + result);
58 result = example.ftdi_setflowctrl(context, (1 << 8));
60 throw new RuntimeException("ftdi_setflowcontrol() returned " + result);
62 public synchronized void dbangmode() {
63 int result = example.ftdi_set_bitmode(context, (short)dmask, (short)0x01);
65 throw new RuntimeException("ftdi_set_bitmode() returned " + result);
68 protected synchronized void cbangmode() {
69 int result = example.ftdi_set_bitmode(context, (short)((mask << 4) | bits), (short)0x20);
71 throw new RuntimeException("ftdi_set_bitmode() returned " + result);
74 protected int dbits = 0;
75 protected synchronized void dbang(int bit, boolean val) {
76 dbits = val ? (dbits | (1 << bit)) : (dbits & (~(1 << bit)));
78 baos.write((byte)dbits);
84 protected synchronized void dbang(byte by) {
85 byte[] b = new byte[1];
87 int result = example.ftdi_write_data(context, b, 1);
89 throw new RuntimeException("ftdi_write_data() returned " + result);
91 protected synchronized void dbang(byte[] b, int len) {
92 example.ftdi_write_data(context, b, len);