S12G 64 & 48 AN 6&7 configuration issue.

Vincent_Jung · ‎06-01-2016

Dear All,

I have a trouble configure AN 6 & 7 to different alternate function.

AN6 for analog input and AN7 for GPIO, this configure causes an error message with "Pins with shared control must be set identically" but configure those two pins to same function analog input or GPIO, the error disappeared.

this error only raised G64 and 48, i tested same configuration on G96 but it did not make error.

lama · ‎06-02-2016

Hi,

it is not clear what development tool you use but it looks like you use some configuration tool.

Have you tried to set such a simple peripheral as ATD is by yourself?

The example is for G240 but easily portable to G64/G48.

For example:

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********************************************************************************

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any warranty. CUSTOMER retains the final decision relative to the total design

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********************************************************************************

* File main.c

* Owner b34874

* Version 1.0 // version 0.x is reserved for development phase and

// should not be placed in the repository

* Date June-15-2012

* Classification General Business Information/Internal Use Only/Confidential Proprietary

* Brief Brief description of the file

********************************************************************************

* Detailed Description:

* Sample describe how set pins at port AD as analog input(PAD0),

* digital inputs(PAD4..7) and outputs(PAD1..3).

* When SW5 pushed: ATD measures ATD channel 0. Result is displayed on LEDs and toggle with PAD3 pin.

* When SW4 pushed: PAD1 output is set according to SW3, PAD2 output is set according to SW2,

* PAD1 and PAD2 values are displayed at LEDs

* Tested on: PC9S12G240 0N95B, TWR-S12G240,

* Clock source:1MHz IRC1M; BUSCLK:6.25MHz

********************************************************************************

Revision History:

Version Date Author Description of Changes

1.0 June/15/2012 b34874 Initial Version

*******************************************************************************/

#include <hidef.h> /* common defines and macros */

#include "derivative.h" /* derivative-specific definitions */

//==============================================================================

// Global variables

//==============================================================================

volatile unsigned int result;

//==============================================================================

// ATD_Init

//==============================================================================

void ATD_Init(void)

{

ATDCTL1 = 0B00010000;

//ETRIGSEL - External Trigger Source Select (without trigger)

//SRES[1:0] - A/D Resolution Select (8 bit)

//SMP_DIS - Discharge Before Sampling Bit

//ETRIGCH[3:0] - External Trigger Channel Select

ATDCTL2 = 0B01000000;

//Reserved

//AFFC - ATD Fast Flag Clear All (yes)

//Reserved

//ETRIGLE - External Trigger Level/Edge Control

//ETRIGP - External Trigger Polarity

//ETRIGE - External Trigger Mode Enable

//ASCIE - ATD Sequence Complete Interrupt Enable (no interrupt)

//ACMPIE - ATD Compare Interrupt Enable (no interrupt)

ATDCTL3 = 0B10100010;

//DJM - Result Register Data Justification (Right Justified)

//S8C, S4C, S2C, S1C - Converison Sequence Length (4)

//FIFO - Result Register FIFO Mode (no FIFO)

//FRZ[1:0] - Background Debug Freeze Enable (Finish current converison, then freeze)

ATDCTL4 = 0B01000100;

//SMP[2:0] - Sample Time Select (8)

//PRS[4:0] - ATD Clock Prescaler (4 => ATD clock 0.625MHz)

// fATDCLK=fBUS/(2*(PRS+1)) ; fATDCLK=<0.25MHz;8MHz>

}

//==============================================================================

// Main

//==============================================================================

void main(void) {

DDRT = 0xF0; //PT4..7 as LED output

//at PAD4..7 are connected buttons, at PAD0 is connected potentiometer.

DDR1AD = 0x0E; //PAD0 input, PAD1..3 outputs, PAD4..7 inputs

PER1AD = 0xF0; //PAD4..7 enable pull device

PPS1AD = 0x00; //PAD4..7 pullup device selected

ATDDIENL = 0xF0; //PAD4..7 digital buffer enable

//note:

//Setting this bit will enable the corresponding digital input buffer continuously.

//If this bit is set while simultaneously using it as an analog port, there is

//potentially increased power consumption because the digital input buffer maybe

//in the linear region.

ATD_Init();

for(;;) {

if (!PT1AD_PT1AD4) //SW5

{

ATDCTL5 = 0B00000000;//start single conversion on AN0

//Reserved

//SC - Special Channel Conversion Bit (no)

//SCAN - Continuous or Single conversion sequence (Single)

//MULT - Multi-Channel Sample Mode (one channel)

//CD, CC, CB, CA - Analog Input Channel Select Code (channel AN0)

while(ATDSTAT0_SCF == 0); //wait for end of conversion

//we can do average of all four values (length of sequence is 4 and only one channel is scanned)

result = (ATDDR0L+ATDDR1L+ATDDR2L+ATDDR3L)/4;

PTT = (unsigned char) ~result << 4; //and show lover 4 bits from result on LEDs (result is inverted, therefore logic 1 = LED on)

PT1AD_PT1AD3 = ~PT1AD_PT1AD3; //toggle output pin PAD3

}

if (!PT1AD_PT1AD5) //SW4

{

PT1AD_PT1AD1 = PT1AD_PT1AD6; //copy the state of PAD6(digital input, SW3) to PAD1(digital output)

PT1AD_PT1AD2 = PT1AD_PT1AD7; //copy the state of PAD7(digital input, SW2) to PAD2(digital output)

PTT = 0xFF; //clear LEDs

PTT_PTT6 = PT1AD_PT1AD1; //show PAD1 value on LEDs (pushed button SW3 = LED on)

PTT_PTT7 = PT1AD_PT1AD2; //show PAD2 value on LEDs (pushed button SW2 = LED on)

}

} /* work forever */

}

Best regards,

Ladislav

Vincent_Jung · ‎06-20-2016

Hello Ladislav,

i am using CW5.1 and processor expert.

If I configure AN7 and 6 to different type it cause error this appear only AN6 and AN7.

Different configuration regarding other is no-problem, it seems S/W bug.

Could someone tell me how to contact compiler team.

ZhangJennie · ‎06-27-2016

Hello.

to work on your problem efficiently and check whether it's a CW defect, please send me below information:

1. your CW and processor expert version:

Start the IDE and click on Help | About Freescale CodeWarrior. Click on Installed Products.Save all info displayed into a txt file and upload it here.

2. your problem demo project.

3. error screenshot.

I will check your problem directly from my side as soon as I get your feedback. Thanks!

Best Regards,

Jennie Zhang