Hugo Zijlmans / Mbed 2 deprecated BLDC

Dependencies:   mbed

LPC1768.c@2:f034e862af1f, 2010-12-02 (annotated)

Committer:
hugozijlmans
Date:
Thu Dec 02 20:55:45 2010 +0000
Revision:
2:f034e862af1f
Parent:
1:2c52307d223f 
Added UART0 support over USB mBed1768

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hugozijlmans 1:2c52307d223f 1 #include "LPC17xx.h"
hugozijlmans 1:2c52307d223f 2 #include "core_cm3.h"
hugozijlmans 1:2c52307d223f 3 #include "cmsis_nvic.h"
hugozijlmans 1:2c52307d223f 4 #include "LPC1768.h"
hugozijlmans 1:2c52307d223f 5 #include "main.h"
hugozijlmans 1:2c52307d223f 6
hugozijlmans 1:2c52307d223f 7 void PLL0_init(void) {
hugozijlmans 1:2c52307d223f 8
hugozijlmans 1:2c52307d223f 9 // Set main clk as main oscillator
hugozijlmans 1:2c52307d223f 10 CLKSRCSEL = 1;
hugozijlmans 1:2c52307d223f 11
hugozijlmans 1:2c52307d223f 12 PLL0_disconnect();
hugozijlmans 1:2c52307d223f 13
hugozijlmans 1:2c52307d223f 14 PLL0_disable();
hugozijlmans 1:2c52307d223f 15
hugozijlmans 1:2c52307d223f 16 // Set PLL0 multiplier
hugozijlmans 1:2c52307d223f 17 PLL0CFG = PLLMULT;
hugozijlmans 1:2c52307d223f 18
hugozijlmans 1:2c52307d223f 19 // Feed the PLL
hugozijlmans 1:2c52307d223f 20 PLL0FEED = 0xAA;
hugozijlmans 1:2c52307d223f 21 PLL0FEED = 0x55;
hugozijlmans 1:2c52307d223f 22
hugozijlmans 1:2c52307d223f 23 PLL0_enable();
hugozijlmans 1:2c52307d223f 24
hugozijlmans 1:2c52307d223f 25 // Set CPU clock divider
hugozijlmans 1:2c52307d223f 26 CCLKCFG = 2;
hugozijlmans 1:2c52307d223f 27
hugozijlmans 1:2c52307d223f 28 // Wait for PLOCK0 to become 1
hugozijlmans 1:2c52307d223f 29 while ((PLL0STAT & (1<<26)) == 0x00);
hugozijlmans 1:2c52307d223f 30
hugozijlmans 1:2c52307d223f 31 PLL0_connect();
hugozijlmans 1:2c52307d223f 32
hugozijlmans 1:2c52307d223f 33 }
hugozijlmans 1:2c52307d223f 34
hugozijlmans 1:2c52307d223f 35 void PLL0_disconnect(void) {
hugozijlmans 1:2c52307d223f 36
hugozijlmans 1:2c52307d223f 37 // Disconnect the PLL0
hugozijlmans 1:2c52307d223f 38 PLL0CON &= ~(1<<1); /* Disconnect the main PLL (PLL0) */
hugozijlmans 1:2c52307d223f 39
hugozijlmans 1:2c52307d223f 40 // Feed the PLL
hugozijlmans 1:2c52307d223f 41 PLL0FEED = 0xAA;
hugozijlmans 1:2c52307d223f 42 PLL0FEED = 0x55;
hugozijlmans 1:2c52307d223f 43
hugozijlmans 1:2c52307d223f 44 // Wait for main PLL (PLL0) to disconnect
hugozijlmans 1:2c52307d223f 45 while ((PLL0STAT & (1<<25)) != 0x00);
hugozijlmans 1:2c52307d223f 46
hugozijlmans 1:2c52307d223f 47 }
hugozijlmans 1:2c52307d223f 48
hugozijlmans 1:2c52307d223f 49 void PLL0_connect(void) {
hugozijlmans 1:2c52307d223f 50
hugozijlmans 1:2c52307d223f 51 // Connect to the main PLL (PLL0)
hugozijlmans 1:2c52307d223f 52 PLL0CON |= 1<<1;
hugozijlmans 1:2c52307d223f 53
hugozijlmans 1:2c52307d223f 54 // Feed the PLL
hugozijlmans 1:2c52307d223f 55 PLL0FEED = 0xAA;
hugozijlmans 1:2c52307d223f 56 PLL0FEED = 0x55;
hugozijlmans 1:2c52307d223f 57
hugozijlmans 1:2c52307d223f 58 // Wait for main PLL (PLL0) to connect
hugozijlmans 1:2c52307d223f 59 while ((PLL0STAT & (1<<25)) == 0x00);
hugozijlmans 1:2c52307d223f 60
hugozijlmans 1:2c52307d223f 61 }
hugozijlmans 1:2c52307d223f 62
hugozijlmans 1:2c52307d223f 63 void PLL0_disable(void) {
hugozijlmans 1:2c52307d223f 64
hugozijlmans 1:2c52307d223f 65 // Turn off the main PLL (PLL0)
hugozijlmans 1:2c52307d223f 66 PLL0CON &= ~(1<<0);
hugozijlmans 1:2c52307d223f 67
hugozijlmans 1:2c52307d223f 68 // Feed the PLL
hugozijlmans 1:2c52307d223f 69 PLL0FEED = 0xAA;
hugozijlmans 1:2c52307d223f 70 PLL0FEED = 0x55;
hugozijlmans 1:2c52307d223f 71
hugozijlmans 1:2c52307d223f 72 // Wait for main PLL (PLL0) to shut down
hugozijlmans 1:2c52307d223f 73 while ((PLL0STAT & (1<<24)) != 0x00);
hugozijlmans 1:2c52307d223f 74
hugozijlmans 1:2c52307d223f 75 }
hugozijlmans 1:2c52307d223f 76
hugozijlmans 1:2c52307d223f 77 void PLL0_enable(void) {
hugozijlmans 1:2c52307d223f 78
hugozijlmans 1:2c52307d223f 79 // Turn on the main PLL (PLL0)
hugozijlmans 1:2c52307d223f 80 PLL0CON |= 1<<0;
hugozijlmans 1:2c52307d223f 81
hugozijlmans 1:2c52307d223f 82 // Feed the PLL
hugozijlmans 1:2c52307d223f 83 PLL0FEED = 0xAA;
hugozijlmans 1:2c52307d223f 84 PLL0FEED = 0x55;
hugozijlmans 1:2c52307d223f 85
hugozijlmans 1:2c52307d223f 86 // Wait for main PLL (PLL0) to come up
hugozijlmans 1:2c52307d223f 87 while ((PLL0STAT & (1<<24)) == 0x00);
hugozijlmans 1:2c52307d223f 88
hugozijlmans 1:2c52307d223f 89 }
hugozijlmans 1:2c52307d223f 90
hugozijlmans 1:2c52307d223f 91 void LED_init(void) {
hugozijlmans 1:2c52307d223f 92
hugozijlmans 1:2c52307d223f 93 // Set output direction for LEDs
hugozijlmans 1:2c52307d223f 94 FIODIR |= LED_MASK;
hugozijlmans 1:2c52307d223f 95
hugozijlmans 1:2c52307d223f 96 }
hugozijlmans 1:2c52307d223f 97