[HELP] TOF bit from TPM register don't work on KDS 3 Mac version

[mr_max]

Hello,

I just downloaded KDS 3 on my Mac but I figure out a strange bug ...

My project use a custom delay lib ( bare board lib, no PEx). It work very good on KDS 2 both Win7 and Ubuntu systems and I also used many time with Keil µVision. But when I used my delay lib on KDS 3 Mac version, it's not work. It seems that TOF bit from TPM statut & control register never set ( I check it with EmbSys Registers). I didn't notice any increments on CTN register too, maybe that why interrupt flag bit never set . So my code just stuck into an infinity loop at line 18 or 31.

Below the code of my delay lib using TPM0 and FRDM-KL25Z. I also tried with TPM1 and even another Freescale board (FRDM-KL26Z), no change

I should tested on KDS 3 Win7 version but I don't have enough time right now. I will do it later

What going on ? Compiler bug ?

#include "MKL25Z4.h" #include "TPM.h"   void TPM_init(void) {     SIM->SCGC6 |= SIM_SCGC6_TPM1_MASK;//TPM0 clock activé     SIM->SOPT2 |= SIM_SOPT2_TPMSRC(0x03);//TPM clock source -> MCGIRCLK     TPM0->SC = TPM_SC_CMOD(0x00);//LPTPM desactivé     TPM0->SC |= TPM_SC_PS(0x02);//Prescaler /4 => 4MHz/4 = 4MHz => T = 1µs }  void TPM0_delai_us(int t) {     TPM0->MOD = TPM_MOD_MOD(t);//t*1µs     TPM0->SC |= TPM_SC_TOF_MASK;//Reset TOF bit     TPM0->SC |= TPM_SC_CMOD(0x01);//LPTPM activé compteur interne     while((TPM0->SC & TPM_SC_TOF_MASK)!=TPM_SC_TOF_MASK);     TPM0->SC |= TPM_SC_TOF_MASK;//clear TOF bit }  void TPM0_delai_ms(int t) {     int i;      TPM0->MOD = TPM_MOD_MOD(1000);//t*1µs     TPM0->SC |= TPM_SC_TOF_MASK;//Reset TOF bit     TPM0->SC |= TPM_SC_CMOD(0x01);//LPTPM activé compteur interne     for(i=0;i<=t;i++)     {         while((TPM0->SC & TPM_SC_TOF_MASK)!=TPM_SC_TOF_MASK);         TPM0->SC |= TPM_SC_TOF_MASK;//clear TOF bit     } } 

[Alice_Yang]

Hello Maxime ,

After i checked your code , i found there is a error :  SIM->SCGC6 |= SIM_SCGC6_TPM1_MASK;//TPM0 clock activé 
this  enable the TPM1, while bellow you use the TPM0 , so please chang TPM1 to TPM0.

After changed it , I have test your code on win7 KDS 3.0 ,  it can work well . Please see the result :

.

Have a great day,
Alice

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[mr_max]

Did you tested my code with KDS 3 on Windows ?

[Alice_Yang]

Yes ,  i test on windows 7 KDS 3.0  about kl25 chip.

You said "I didn't notice any increments on CTN register too," , i have show the CNT register is increased above screenshot.

And when you check the register from "EmbSys Registers" , please double click the register or bit you want to checked, or it will not show the updated data .

BR

Alice

[mr_max]

Yes I double click to active EmbSys Register (TPMx registers  appear in green) when I tested. Same problem with KL26Z board ...

[Alice_Yang]

Hello ,

please try the project of attachment . It create on KL25 .

And the screenshot at above is the result on my side .

Have a great day,
Alice

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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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[mr_max]

Ok, I just tested your project both on windows and mac and TMP0 count correctly ! The problem wasn't from the compiler or anything else but from a copy and past of  TPM.c . It seems that when I copy/past my TPM lib from my ex linux ubuntu files into a new TPM.c file , create that strange blocking of TMP0, 1, and 2 ... :smileyalert:  Maybe an invisibles characters was there into the code, I don't really know , but everything work fine now for KDS 3 both on Mac Yosemite and Windows 7. 

I wrote TPM lib on Windows 7 then I switched to Ubuntu 14 to go back to Mac. Copy/paste TPM sources files from Windows to Linux work well but it seems not from Linux to other OS ...

I learn something this week,  never use Ubuntu again ! NE-VER !  hahaha :smileysilly: 

Thanks for your help Alice.

Max

[mr_max]

Yes you right but like I said, I tested with TPM1 and in my post SIM->SCGC6 register is a copy/past mistake. So in the original code, SIM->SCGC6 register is properly set to  TPM0 clock gate

Problem sill there ....

#include "MKL25Z4.h"
#include "TPM.h"
void TPM_init(void)
{
    SIM->SCGC6 |= SIM_SCGC6_TPM0_MASK;//TPM0 clock activé
    SIM->SOPT2 |= SIM_SOPT2_TPMSRC(0x03);//TPM clock source -> MCGIRCLK
    TPM0->SC = TPM_SC_CMOD(0x00);//LPTPM desactivé
    TPM0->SC |= TPM_SC_PS(0x02);//Prescaler /4 => 4MHz/4 = 4MHz => T = 1µs
}
void TPM0_delai_us(int t)
{
    TPM0->MOD = TPM_MOD_MOD(t);//t*1µs
    TPM0->SC |= TPM_SC_TOF_MASK;//Reset TOF bit
    TPM0->SC |= TPM_SC_CMOD(0x01);//LPTPM activé compteur interne
    while((TPM0->SC & TPM_SC_TOF_MASK)!=TPM_SC_TOF_MASK);
    TPM0->SC |= TPM_SC_TOF_MASK;//clear TOF bit
}
void TPM0_delai_ms(int t)
{
    int i;
    TPM0->MOD = TPM_MOD_MOD(1000);//t*1µs
    TPM0->SC |= TPM_SC_TOF_MASK;//Reset TOF bit
    TPM0->SC |= TPM_SC_CMOD(0x01);//LPTPM activé compteur interne
    for(i=0;i<=t;i++)
    {
        while((TPM0->SC & TPM_SC_TOF_MASK)!=TPM_SC_TOF_MASK);
        TPM0->SC |= TPM_SC_TOF_MASK;//clear TOF bit
    }
}