main.cpp

00001 
00002 #include "mbed.h"
00003 #include "USBSerial.h"
00004 
00005 USBSerial pc(0x1f00, 0x2012, 0x0001, false, 20480);  // connect_blocking = false, buf_size = 20480
00006 RawSerial wifi_serial(P7_1, P0_1);
00007 
00008 InterruptIn button0(USER_BUTTON0);
00009 InterruptIn button1(USER_BUTTON1);
00010 
00011 DigitalOut wifi_en(P5_3);
00012 DigitalOut wifi_io0(P3_14);
00013 
00014 static uint8_t usb_send_buff[64];
00015 
00016 static void settings_change(int baud, int bits, int parity, int stop) {
00017     wifi_serial.baud(baud);
00018     wifi_serial.format(bits, (SerialBase::Parity)parity, (stop == 0) ? 1 : stop);
00019 }
00020 
00021 static void button0_fall(void) {
00022     wifi_en = 0;
00023 }
00024 
00025 static void button0_rise(void) {
00026     wifi_en = 1;
00027 }
00028 
00029 static void button1_fall(void) {
00030     wifi_io0 = 0;
00031 }
00032 
00033 static void button1_rise(void) {
00034     wifi_io0 = 1;
00035 }
00036 
00037 int main() {
00038     pc.attach(&settings_change);
00039 
00040     // check ESP_IO0
00041     if (button1 == 0) {
00042         wifi_io0 = 0;
00043     } else {
00044         wifi_io0 = 1;
00045     }
00046 
00047     // button setting
00048     button0.fall(&button0_fall);
00049     button0.rise(&button0_rise);
00050     button1.fall(&button1_fall);
00051     button1.rise(&button1_rise);
00052 
00053     // reset
00054     wifi_en  = 0;
00055     Thread::wait(100);
00056     wifi_en  = 1;
00057 
00058     while (1) {
00059         if (wifi_serial.readable()) {
00060             int idx = 0;
00061             usb_send_buff[idx++] = wifi_serial.getc();
00062             while (wifi_serial.readable() && (idx < 64)) {
00063                 usb_send_buff[idx++] = wifi_serial.getc();
00064             }
00065             pc.writeBlock(usb_send_buff, idx);
00066         }
00067         if (pc.readable()) {
00068             wifi_serial.putc(pc._getc());
00069         }
00070     }
00071 }