EmbeddedArtists AB / Mbed 2 deprecated lpc812_exp_solution_spi-e2prom

Solutions for the SPI E2PROM experiments for LPC812 MAX

Dependencies:   mbed

SPI25LC080.h@1:819f21483c01, 2013-11-28 (annotated)

Committer:
embeddedartists
Date:
Thu Nov 28 12:17:45 2013 +0000
Revision:
1:819f21483c01
Parent:
SPI24LC080.h@0:aa38ad0bf51d 
Renamed the SPI24LC080 class to SPI25LC080 as it is an interface to the 25LC080 chip.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 1:819f21483c01 1 #ifndef SPI25LC080_H
embeddedartists 1:819f21483c01 2 #define SPI25LC080_H
embeddedartists 0:aa38ad0bf51d 3
embeddedartists 0:aa38ad0bf51d 4 /**
embeddedartists 1:819f21483c01 5 * Interface to the 25LC080 chip (http://ww1.microchip.com/downloads/en/DeviceDoc/22151b.pdf)
embeddedartists 0:aa38ad0bf51d 6 *
embeddedartists 0:aa38ad0bf51d 7 * @code
embeddedartists 0:aa38ad0bf51d 8 * #include "mbed.h"
embeddedartists 0:aa38ad0bf51d 9 *
embeddedartists 1:819f21483c01 10 * SPI25LC080 e2prom;
embeddedartists 0:aa38ad0bf51d 11 *
embeddedartists 0:aa38ad0bf51d 12 * int main(void) {
embeddedartists 0:aa38ad0bf51d 13 * uint8_t buff[20];
embeddedartists 0:aa38ad0bf51d 14 * uint16_t addr = ...
embeddedartists 0:aa38ad0bf51d 15 *
embeddedartists 0:aa38ad0bf51d 16 * while(1) {
embeddedartists 0:aa38ad0bf51d 17 * // read from e2prom
embeddedartists 0:aa38ad0bf51d 18 * e2prom.read(addr, buff, 20);
embeddedartists 0:aa38ad0bf51d 19 *
embeddedartists 0:aa38ad0bf51d 20 * // write to e2prom
embeddedartists 0:aa38ad0bf51d 21 * e2prom.write(addr, buff, 20);
embeddedartists 0:aa38ad0bf51d 22 * }
embeddedartists 0:aa38ad0bf51d 23 * }
embeddedartists 0:aa38ad0bf51d 24 * @endcode
embeddedartists 0:aa38ad0bf51d 25 */
embeddedartists 1:819f21483c01 26 class SPI25LC080 {
embeddedartists 0:aa38ad0bf51d 27 public:
embeddedartists 0:aa38ad0bf51d 28
embeddedartists 1:819f21483c01 29 /** Create an interface to the 25LC080 chip
embeddedartists 0:aa38ad0bf51d 30 *
embeddedartists 0:aa38ad0bf51d 31 * @param mosi the SPI MOSI pin
embeddedartists 0:aa38ad0bf51d 32 * @param sclk the SPI SCLK pin
embeddedartists 0:aa38ad0bf51d 33 * @param miso the SPI MISO pin
embeddedartists 0:aa38ad0bf51d 34 */
embeddedartists 1:819f21483c01 35 SPI25LC080(PinName mosi = P0_14, PinName sclk = P0_12, PinName miso = P0_15, PinName ssel = P0_13);
embeddedartists 0:aa38ad0bf51d 36
embeddedartists 0:aa38ad0bf51d 37 /** Reads from the E2PROM
embeddedartists 0:aa38ad0bf51d 38 *
embeddedartists 0:aa38ad0bf51d 39 * @param address the address to read from
embeddedartists 0:aa38ad0bf51d 40 * @param pBuf where to store the read data
embeddedartists 0:aa38ad0bf51d 41 * @param length the number of bytes to read
embeddedartists 0:aa38ad0bf51d 42 */
embeddedartists 0:aa38ad0bf51d 43 void read(uint16_t address, uint8_t* pData, uint32_t length);
embeddedartists 0:aa38ad0bf51d 44
embeddedartists 0:aa38ad0bf51d 45 /** Writes to the E2PROM
embeddedartists 0:aa38ad0bf51d 46 *
embeddedartists 0:aa38ad0bf51d 47 * @param address the address to write to
embeddedartists 0:aa38ad0bf51d 48 * @param pBuf the data to write
embeddedartists 0:aa38ad0bf51d 49 * @param length the number of bytes to write
embeddedartists 0:aa38ad0bf51d 50 */
embeddedartists 0:aa38ad0bf51d 51 void write(uint16_t address, uint8_t* pData, uint32_t length);
embeddedartists 0:aa38ad0bf51d 52
embeddedartists 0:aa38ad0bf51d 53 /** Reads the status register
embeddedartists 0:aa38ad0bf51d 54 */
embeddedartists 0:aa38ad0bf51d 55 uint8_t status();
embeddedartists 0:aa38ad0bf51d 56
embeddedartists 0:aa38ad0bf51d 57 private:
embeddedartists 0:aa38ad0bf51d 58 SPI m_spi;
embeddedartists 0:aa38ad0bf51d 59 DigitalOut m_ssel;
embeddedartists 0:aa38ad0bf51d 60
embeddedartists 0:aa38ad0bf51d 61 /** Sets the write enable latch/bit
embeddedartists 0:aa38ad0bf51d 62 */
embeddedartists 0:aa38ad0bf51d 63 void write_enable();
embeddedartists 0:aa38ad0bf51d 64 };
embeddedartists 0:aa38ad0bf51d 65
embeddedartists 0:aa38ad0bf51d 66 #endif
embeddedartists 0:aa38ad0bf51d 67