MAX3100, an external serial device to add additional serial ports via SPI
Dependents: FLIGHT_CONTROL_AND_COMMUNICATIONS_SYSTEM
example1.h
- Committer:
- AjK
- Date:
- 2011-01-17
- Revision:
- 1:46c8c60e744a
- Parent:
- 0:055897ab699b
File content as of revision 1:46c8c60e744a:
/* Copyright (c) 2011 Andy Kirkham Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifdef MAX3100_EXAMPLE_COMPILE /* * Connecting up the MAX3100 for this test program. Note, to form a "loopback" * the MAX3100 TX pin (13) is connected to the RX pin (12). Don't forget thwe Xtal * and power pins that are not shown here. Although I do PullUp mode on the IRQ pin * I still needed a real external pull up resistor on the IRQ line. You may need one * also. * ____________ * / \ * Mbed MOSI p5 |-----------------> 1| Din TX | 13 ------\ * MISO p6 |-----------------> 2| Dout | | * SCLK p7 |-----------------> 3| Sclk RX | 12 ------/ * p8 |-----------------> 4| CS | * p9 |-----------------> 5| IRQ | MAX3100 * +5v ------> 6| SHTD | Xtal and PWR not shown. * \____________/ */ #include "mbed.h" #include "MAX3100.h" Serial pc(USBTX, USBRX); MAX3100 max(p5, p6, p7, p8, p9); int main() { // Set the PC USB serial baud rate. pc.baud(115200); max.enableRxIrq(); max.enableTxIrq(); max.printf("\nHello World.\n"); // Any byte received on the "USB serial port" is sent to the MAX3100 device. // Any byte received by the MAX3100 device is sent to the "USB serial port". while (1) { if (pc.readable()) { int c = pc.getc(); max.putc(c); } if (max.readable()) { pc.putc( max.getc() ); } } } #endif