topic Re: DEVKIT-S12ZVC peripheral Library CodeWarrior in CodeWarrior for MCU

DEVKIT-S12ZVC peripheral Library CodeWarrior

christinar — Thu, 19 Apr 2018 20:55:12 GMT

Hi,

at first sorry for my english. I´m a student from germany and this is my first project with a microcontroller.

I´m using a DEVKIT-S12ZVC Board (9S12ZVCA192 microcontroller). There is only a #include for "peripheral declarations" in CodeWarrior. Is there a library containing ready functions which can be used for example setting the registers? Normally you have to implement a code like this on yourself:

void ADC_init(void){

ADC0CTL_0 = 0x0D; /*Dual Access mode and trigger mode selected */

ADC0CTL_1 = 0x00; /* Single command and result value list */

ADC0TIM = 0x0F; /*No prescaler selected */\

ADC0FMT = 0x82; /* Left justified and 10 bit resolution */

/* ADC0 Command & Result Base Pointers */

ADC0CBP_0 = (unsigned char)(((long)adc0_cmdlist) >> 16);

ADC0CBP_1 = (unsigned char)(((long)adc0_cmdlist) >> 8);

ADC0CBP_2 = (unsigned char)((long)adc0_cmdlist);

// ADC0 Result Base Pointer

ADC0RBP_0 = (unsigned char)(((long)adc0_results) >> 16);

ADC0RBP_1 = (unsigned char)(((long)adc0_results) >> 8);

ADC0RBP_2 = (unsigned char)((long)adc0_results);

ADC0CTL_0_ADC_EN= 1; /*Enables the ADC */

}

unsigned int ADC_read(unsigned int channel){

adc0_cmdlist[0][1] = 0xC0|channel;

ADC0FLWCTL_RSTA = 1; // Restart Event

while(0x00 == ADC0CONIF){} //wait until conversion is complete

ADC0CONIF = ADC0CONIF;//clear flag

return adc0_results[0];

}

unsigned int ADC_read_PGA(unsigned int channel, unsigned char PGA_in){

adc0_cmdlist[0][0] = 0xC0|(PGA_in<<4);

adc0_cmdlist[0][1] = 0xC0|channel;

ADC0FLWCTL_RSTA = 1; // Restart Event

while(0x00 == ADC0CONIF){} //wait until conversion is complete

ADC0CONIF = ADC0CONIF;//clear flag

return adc0_results[0];

}

Can I download or add a library which includes standards like the example?

Thank you in advane.

Kind regards

Christina

Re: DEVKIT-S12ZVC peripheral Library CodeWarrior

ZhangJennie — Fri, 20 Apr 2018 07:27:34 GMT

Hi Christina,

Processor expert can support S12Z project. we can use processor expert to generate peripheral initialization code.

Attached is the video shows how to create a processor expert project. Hope it helps.

Have a great day,
Jennie Zhang

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Re: DEVKIT-S12ZVC peripheral Library CodeWarrior

christinar — Mon, 23 Apr 2018 13:58:55 GMT

Hi Jennie,

thank you for the information.

It´s my first time working with microcontrollers. I started with the "DEVKIT-S12ZVC-LAB" Examples but I can´t find descriptions for the Examples?

Do you know if there is a description?

Thank you in advance

Have a nice day,

Christina

Re: DEVKIT-S12ZVC peripheral Library CodeWarrior

ZhangJennie — Wed, 25 Apr 2018 09:40:33 GMT

I haven't find any document describing this LAB. But I check the LAB source comments which are very detail.

I think you can refer the code comments to understand the code.

Have a great day,
Jennie Zhang

Re: DEVKIT-S12ZVC peripheral Library CodeWarrior

christinar — Wed, 25 Apr 2018 13:18:25 GMT

Yes the comments in the code are very helpful but I want to test the funktion of the code/board. Do I need two boards which are connected? (If yes, is it the same for testing CAN?)

In the description of DEVKIT-S12XE is an example for I2C/CAN. Maybe it´s similar to the S12ZVC board?

Description LAB3 and LAB4 DEVKIT-S12XE:

Thank you in advance.

Kind regards

Christina

Re: DEVKIT-S12ZVC peripheral Library CodeWarrior

ZhangJennie — Mon, 07 May 2018 08:26:42 GMT

Yes, You'd better have two boards to test the communication.

Jennie Zhang

Re: DEVKIT-S12ZVC peripheral Library CodeWarrior

christinar — Tue, 08 May 2018 15:04:50 GMT

Ok thank you very much.

Kind regards

Christina

Re: DEVKIT-S12ZVC peripheral Library CodeWarrior

ZhangJennie — Wed, 09 May 2018 03:01:40 GMT

You are welcome!

Have a great day,
Jennie Zhang