Emulation of LocalFileSystem with virtual COM.
Dependents: KL46Z-lpc81isp lpcterm2
#include "USBLocalFileSystem.h" int main() { USBLocalFileSystem* usb_local = new USBLocalFileSystem(); // RamDisk(64KB) while(1) { usb_local->lock(true); usb_local->remount(); char filename[32]; if (usb_local->find(filename, sizeof(filename), "*.TXT")) { FILE* fp = fopen(filename, "r"); if (fp) { int c; while((c = fgetc(fp)) != EOF) { usb_local->putc(c); } fclose(fp); } } usb_local->lock(false); wait_ms(1000*5); } }
Sample application:
Import programKL46Z-lpc81isp
ISP example program.
Import programlpcterm2
semihost server example program
SWSPI/SWSPI.h
- Committer:
- va009039
- Date:
- 2014-06-21
- Revision:
- 6:528036abfb02
- Parent:
- 0:39eb4d5b97df
File content as of revision 6:528036abfb02:
/* SWSPI, Software SPI library * Copyright (c) 2012-2014, David R. Van Wagner, http://techwithdave.blogspot.com * * 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. */ #ifndef SWSPI_H #define SWSPI_H /** A software implemented SPI that can use any digital pins * * Useful when don't want to share a single SPI hardware among attached devices * or when pinout doesn't match exactly to the target's SPI pins * * @code * #include "mbed.h" * #include "SWSPI.h" * * SWSPI spi(p5, p6, p7); // mosi, miso, sclk * * int main() * { * DigitalOut cs(p8); * spi.format(8, 0); * spi.frequency(10000000); * cs.write(0); * spi.write(0x9f); * int jedecid = (spi.write(0) << 16) | (spi.write(0) << 8) | spi.write(0); * cs.write(1); * } * @endcode */ class SWSPI { private: uint8_t fast_write(uint8_t value); DigitalOut* mosi; DigitalIn* miso; DigitalOut* sclk; int port; int bits; int mode; int polarity; // idle clock value int phase; // 0=sample on leading (first) clock edge, 1=trailing (second) int freq; bool _fast; public: /** Create SWSPI object * * @param mosi_pin * @param miso_pin * @param sclk_pin */ SWSPI(PinName mosi_pin, PinName miso_pin, PinName sclk_pin); /** Destructor */ ~SWSPI(); /** Specify SPI format * * @param bits 8 or 16 are typical values * @param mode 0, 1, 2, or 3 phase (bit1) and idle clock (bit0) */ void format(int bits, int mode = 0); /** Specify SPI clock frequency * * @param hz frequency (optional, defaults to 10000000) */ void frequency(int hz = 10000000); /** Write data and read result * * @param value data to write (see format for bit size) * returns value read from device */ int write(int value); }; #endif // SWSPI_H