Ryo Iizuka / Mbed 2 deprecated PlatformSelectSample

This program can detect the type(mbed or LPCXpresso) of platform. The sample recognizes mbed or LPCXpresso.

Dependencies:   mbed

This program detects the LPCXpresso and mbed at run time.

There is a difference in the value of the CoreDebugRegister LPCXpresso and mbed.

The program check those bits and select platform type.

#include "mbed.h"
#include "PlatformInfo.h"
DigitalOut mbedled(LED1);
DigitalOut lpcxled(P0_22);
using namespace MiMic;
int main(){
    switch(PlatformInfo::getPlatformType()){
    case PlatformInfo::PF_MBED:
        while(1) {
            mbedled = 1;
            wait(0.2);
            mbedled = 0;
            wait(0.2);
        }
    case PlatformInfo::PF_LPCXPRESSO:
        while(1) {
            lpcxled = 1;
            wait(0.1);
            lpcxled = 0;
            wait(0.1);
        }
    }    
}

If program run on mbed, LED1(blue) will be blinking. If it run on LPCXpresso, LED2(red) will be blinking.

PlatformInfo.cpp@0:ef577a5fd78f, 2013-05-05 (annotated)

Committer:
nyatla
Date:
Sun May 05 11:29:12 2013 +0000
Revision:
0:ef577a5fd78f
Sample of platform detection

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nyatla 0:ef577a5fd78f 1 #include "PlatformInfo.h"
nyatla 0:ef577a5fd78f 2 #define REG_HCSR 0xe000edf0
nyatla 0:ef577a5fd78f 3 #define REG_DEMCR 0xE000EDFC
nyatla 0:ef577a5fd78f 4
nyatla 0:ef577a5fd78f 5 #include "mbed.h"
nyatla 0:ef577a5fd78f 6 namespace MiMic
nyatla 0:ef577a5fd78f 7 {
nyatla 0:ef577a5fd78f 8 int PlatformInfo::_pftype=PF_UNKNOWN;
nyatla 0:ef577a5fd78f 9 void PlatformInfo::check()
nyatla 0:ef577a5fd78f 10 {
nyatla 0:ef577a5fd78f 11 #if PlatformInfo_DETECTION_MODE==PlatformInfo_DETECTION_MODE_MBED
nyatla 0:ef577a5fd78f 12 _pftype=PF_MBED;
nyatla 0:ef577a5fd78f 13 return;
nyatla 0:ef577a5fd78f 14 #elif PlatformInfo_DETECTION_MODE==PlatformInfo_DETECTION_MODE_LPCXPRESSO
nyatla 0:ef577a5fd78f 15 _pftype=PF_LPCXPRESSO;
nyatla 0:ef577a5fd78f 16 return;
nyatla 0:ef577a5fd78f 17 #elif PlatformInfo_DETECTION_MODE==PlatformInfo_DETECTION_MODE_AUTO
nyatla 0:ef577a5fd78f 18 //LPCXpresso is return S_RESET_ST==1 when standalone.
nyatla 0:ef577a5fd78f 19 wait_ms(200);
nyatla 0:ef577a5fd78f 20 unsigned int v;
nyatla 0:ef577a5fd78f 21 v=*(unsigned int*)REG_HCSR;
nyatla 0:ef577a5fd78f 22 //check Debug Halting Control and Status::S_RESET_ST sticky bit
nyatla 0:ef577a5fd78f 23 if((v & 0x02000000)!=0){
nyatla 0:ef577a5fd78f 24 //may be LPC-Standalone
nyatla 0:ef577a5fd78f 25 _pftype=PF_LPCXPRESSO;
nyatla 0:ef577a5fd78f 26 return;
nyatla 0:ef577a5fd78f 27 }
nyatla 0:ef577a5fd78f 28 v=(*(unsigned int*)REG_DEMCR);
nyatla 0:ef577a5fd78f 29 if((v & 0x01000000)==0x0){
nyatla 0:ef577a5fd78f 30 //may be mbed
nyatla 0:ef577a5fd78f 31 _pftype=PF_MBED;
nyatla 0:ef577a5fd78f 32 return;
nyatla 0:ef577a5fd78f 33 }
nyatla 0:ef577a5fd78f 34 _pftype=PF_LPCXPRESSO;
nyatla 0:ef577a5fd78f 35 return;
nyatla 0:ef577a5fd78f 36 #else
nyatla 0:ef577a5fd78f 37 #error "ERROR!"
nyatla 0:ef577a5fd78f 38 #endif
nyatla 0:ef577a5fd78f 39 }
nyatla 0:ef577a5fd78f 40 int PlatformInfo::getPlatformType()
nyatla 0:ef577a5fd78f 41 {
nyatla 0:ef577a5fd78f 42 if(_pftype==PF_UNKNOWN){
nyatla 0:ef577a5fd78f 43 check();
nyatla 0:ef577a5fd78f 44 }
nyatla 0:ef577a5fd78f 45 return _pftype;
nyatla 0:ef577a5fd78f 46 }
nyatla 0:ef577a5fd78f 47 }