Mohsen Samadani / Mbed 2 deprecated Algorithm-testing

Code for measuring the signal with a specified length and sampling rate, and saving it on a SD card.

Dependencies:   EALib I2S mbed

savePower.cpp@0:c05b00be2229, 2017-07-13 (annotated)

Committer:
msamadani
Date:
Thu Jul 13 19:33:37 2017 +0000
Revision:
0:c05b00be2229
bpFilter function works.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
msamadani 0:c05b00be2229 1 #include "mbed.h"
msamadani 0:c05b00be2229 2 #include "sdram.h"
msamadani 0:c05b00be2229 3 #include "savePower.h"
msamadani 0:c05b00be2229 4
msamadani 0:c05b00be2229 5 static int phy_write(unsigned int PhyReg, unsigned short Data)
msamadani 0:c05b00be2229 6 {
msamadani 0:c05b00be2229 7 unsigned int timeOut;
msamadani 0:c05b00be2229 8
msamadani 0:c05b00be2229 9 LPC_EMAC->MADR = DP83848C_DEF_ADR | PhyReg;
msamadani 0:c05b00be2229 10 LPC_EMAC->MWTD = Data;
msamadani 0:c05b00be2229 11
msamadani 0:c05b00be2229 12 for(timeOut = 0; timeOut < MII_WR_TOUT; timeOut++) { /* Wait until operation completed */
msamadani 0:c05b00be2229 13 if((LPC_EMAC->MIND & MIND_BUSY) == 0) {
msamadani 0:c05b00be2229 14 return 0;
msamadani 0:c05b00be2229 15 }
msamadani 0:c05b00be2229 16 }
msamadani 0:c05b00be2229 17
msamadani 0:c05b00be2229 18 return -1;
msamadani 0:c05b00be2229 19 }
msamadani 0:c05b00be2229 20
msamadani 0:c05b00be2229 21 DigitalOut cke(P2_24);
msamadani 0:c05b00be2229 22 Ethernet eth;
msamadani 0:c05b00be2229 23 DigitalOut p1_19(P1_19);
msamadani 0:c05b00be2229 24 DigitalOut p2_18(P2_18);
msamadani 0:c05b00be2229 25
msamadani 0:c05b00be2229 26
msamadani 0:c05b00be2229 27 void savePower(void)
msamadani 0:c05b00be2229 28 {
msamadani 0:c05b00be2229 29 /*
msamadani 0:c05b00be2229 30 ------------------------------------------------------->
msamadani 0:c05b00be2229 31 Initialize SDRAM and set CKE 0 to make sure SDRAM is
msamadani 0:c05b00be2229 32 in power-down mode. CKE is also connected to a 1K5 pull
msamadani 0:c05b00be2229 33 down resistor
msamadani 0:c05b00be2229 34 */
msamadani 0:c05b00be2229 35 // DigitalOut cke(P2_24);
msamadani 0:c05b00be2229 36 sdram_init();
msamadani 0:c05b00be2229 37 cke = 0; // set low not to draw any current
msamadani 0:c05b00be2229 38
msamadani 0:c05b00be2229 39 /* ------------------------------------------------------->
msamadani 0:c05b00be2229 40 Initialize Ethernet by instantiating the Ethernet class
msamadani 0:c05b00be2229 41 The Ethernet interface doesn't contain a power-down
msamadani 0:c05b00be2229 42 method so we reimplement phy_write in this app and
msamadani 0:c05b00be2229 43 puts the PHY in power-down here
msamadani 0:c05b00be2229 44 */
msamadani 0:c05b00be2229 45 // Ethernet eth;
msamadani 0:c05b00be2229 46
msamadani 0:c05b00be2229 47 phy_write(PHY_REG_BMCR, PHY_BMCR_PWR_DOWN);
msamadani 0:c05b00be2229 48
msamadani 0:c05b00be2229 49 /*<-------------------------------------------------------
msamadani 0:c05b00be2229 50 must be low to disable U7 (STMPS2171STR)
msamadani 0:c05b00be2229 51 DigitalOut p1_19(P1_19);
msamadani 0:c05b00be2229 52 */
msamadani 0:c05b00be2229 53 p1_19 = 0;
msamadani 0:c05b00be2229 54
msamadani 0:c05b00be2229 55
msamadani 0:c05b00be2229 56 /* p2.18 connected to 1K5 pull-down resistor
msamadani 0:c05b00be2229 57 DigitalOut p2_18(P2_18);
msamadani 0:c05b00be2229 58 */
msamadani 0:c05b00be2229 59 p2_18 = 0;
msamadani 0:c05b00be2229 60
msamadani 0:c05b00be2229 61 }