Sam Grove / Mbed 2 deprecated Re-InvokeISP

Testing documentation

Dependencies:   mbed

main.cpp@4:3f1a2b5dc176, 2011-04-18 (annotated)

Committer:
sgrove
Date:
Mon Apr 18 04:16:13 2011 +0000
Revision:
4:3f1a2b5dc176
Parent:
3:987ee333d593 
r3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sgrove 0:116ff1f909ba 1 #include "mbed.h"
sgrove 0:116ff1f909ba 2
sgrove 2:60a7f968d4ad 3 // using a led
sgrove 0:116ff1f909ba 4 DigitalOut myled(LED1);
sgrove 0:116ff1f909ba 5
sgrove 0:116ff1f909ba 6 void DisconnectPLL0(){
sgrove 0:116ff1f909ba 7 // good practice to disable before feeding
sgrove 0:116ff1f909ba 8 __disable_irq();
sgrove 0:116ff1f909ba 9 // disconnect
sgrove 0:116ff1f909ba 10 LPC_SC->PLL0CON = 0x1;
sgrove 0:116ff1f909ba 11 LPC_SC->PLL0FEED = 0xAA;
sgrove 0:116ff1f909ba 12 LPC_SC->PLL0FEED = 0x55;
sgrove 0:116ff1f909ba 13 while (LPC_SC->PLL0STAT&(1<<25));
sgrove 0:116ff1f909ba 14 // power down
sgrove 0:116ff1f909ba 15 LPC_SC->PLL0CON = 0x0;
sgrove 0:116ff1f909ba 16 LPC_SC->PLL0FEED = 0xAA;
sgrove 0:116ff1f909ba 17 LPC_SC->PLL0FEED = 0x55;
sgrove 0:116ff1f909ba 18 while (LPC_SC->PLL0STAT&(1<<24));
sgrove 0:116ff1f909ba 19 // This is the default flash read/write setting for IRC
sgrove 0:116ff1f909ba 20 LPC_SC->FLASHCFG &= 0x0fff;
sgrove 0:116ff1f909ba 21 LPC_SC->FLASHCFG |= 0x5000;
sgrove 0:116ff1f909ba 22 LPC_SC->CCLKCFG = 0x0;
sgrove 0:116ff1f909ba 23 // Select the IRC as clk
sgrove 0:116ff1f909ba 24 LPC_SC->CLKSRCSEL = 0x00;
sgrove 0:116ff1f909ba 25 // not using XTAL anymore
sgrove 0:116ff1f909ba 26 LPC_SC->SCS = 0x00;
sgrove 0:116ff1f909ba 27 }
sgrove 0:116ff1f909ba 28
sgrove 2:60a7f968d4ad 29 // IAP address
sgrove 0:116ff1f909ba 30 #define IAP_LOCATION 0x1FFF1FF1
sgrove 2:60a7f968d4ad 31 // variable for command and result
sgrove 0:116ff1f909ba 32 unsigned int command[5];
sgrove 0:116ff1f909ba 33 unsigned int result[5];
sgrove 2:60a7f968d4ad 34 // function pointer with 2 array parameters
sgrove 0:116ff1f909ba 35 typedef void (*IAP)(unsigned int[5],unsigned int [5]);
sgrove 2:60a7f968d4ad 36 // declaration of the fptr.
sgrove 0:116ff1f909ba 37 IAP iap_entry = (IAP)IAP_LOCATION;
sgrove 0:116ff1f909ba 38
sgrove 0:116ff1f909ba 39 int main(){
sgrove 0:116ff1f909ba 40
sgrove 1:e835875b325c 41 //! change clk to 4MHz - see below
sgrove 0:116ff1f909ba 42 DisconnectPLL0();
sgrove 1:e835875b325c 43 //! stop all ISRs
sgrove 0:116ff1f909ba 44 __disable_irq();
sgrove 1:e835875b325c 45 //!make IAP call
sgrove 0:116ff1f909ba 46 command[0] = 57;
sgrove 0:116ff1f909ba 47 iap_entry(command, result);
sgrove 0:116ff1f909ba 48
sgrove 1:e835875b325c 49 //! This should never get executed
sgrove 0:116ff1f909ba 50 while(1) {
sgrove 0:116ff1f909ba 51 myled = 1;
sgrove 0:116ff1f909ba 52 wait(0.2);
sgrove 0:116ff1f909ba 53 myled = 0;
sgrove 0:116ff1f909ba 54 wait(0.2);
sgrove 0:116ff1f909ba 55 }
sgrove 0:116ff1f909ba 56 }