Hi,

I would like to be able to allow a long button touch detection time (>15s) but i also must keep the sensor autoreset as enable.

I tried it by setting the baseline_update_threshold at its max (255) but it's not sufficient enough.

So my idea is to disable the sensor autoreset each time  a long touch is detected (by a timer).

I searched on cypress datasheet, applications notes, forums and google but didn't found any information on how to do that.

So my questions are : is it possible ? is there any register, variable or function to access the sensor autoreset setting ?

Thanks,

 Unfortunately, you can't do it without changing the code. Is there a particular reason for keeping the autoreset on ?

You can always keep a software baseline reset for an unwanted condition.

-Prakhar

Hi, Thanks for your help.

I must keep the autoreset on because of environnementals electromagnetismes conditions.

But if i could turn the autoreset off for 15sec (time needed for long touch) and then turn it on it would be OK.

The thing is, I don't know how to turn it on/off by soft.

So my question is which register should i write ? and how to access it ?

Any documentation or weblink would be helpfull.

Regards,

 Hi,

You can use the Macro, "CSD_AUTORESET", where CSD is your user module name.

Hi,

I think I misunderstood your requirement. The macro is read-only and can't be used to ALTER autoreset status.

If you're requirement is to change the Autoreset function (enable/disable) during runtime from within the firmware, you'll have to make some minor modifications to your usermodule code as follows:

1. Open CSD_1hl.asm from lib>Library Source Files folder

2. Find the following section -> 

;@PSoC_UserCode_INIT@ (Do not change this line.)

;---------------------------------------------------

; Insert your custom declarations below this banner

and add the following lines after the above banner:

export CSD_1_AUTORESET_custom

export _CSD_1_AUTORESET_custom

3. Also allocate some space for the variables:

;------------------------

; User Variable Allocation

;------------------------

CSD_1_AUTORESET_custom: BLK 1

_CSD_1_AUTORESET_custom: BLK 1

4. In the same file, search for "CSD_1_AUTORESET" and replace it with the variable name "CSD_1_AUTORESET_custom"

5. Now in your code, you can invoke your variable by adding a reference declaration "extern CSD_1_AUTORESET_custom"

Autoreset function can be toggled ON/OFF with CSD_1_AUTORESET_custom = 1 or CSD_1_AUTORESET_custom = 0;

Please try this out and let me know how it goes.

Regards,

Arvind

 Another change which I missed, is to replace the "IF" statements with "tst"

See the code snippets as follows (in CSD_1hl.asm) :

Original:

IF (CSD_1_AUTORESET)

   cmp [X+CSD_1_waSnsDiff+MSB], 0

   jz   .AddBucketLSB

   mov  A, 255

   jmp  .AddBucketConst

ELSE

   ; Compare to Noise Threshold

   cmp [X+CSD_1_waSnsDiff+MSB], 0

   jnz  .InitLowBaselineReset

   mov A, [CSD_1_bNoiseThreshold]

   cmp A, [X+CSD_1_waSnsDiff+LSB]

   jc .InitLowBaselineReset

ENDIF

Modify to:

tst [CSD_1_AUTORESET_custom], 0

jz .ARST_disabled

   cmp [X+CSD_1_waSnsDiff+MSB], 0

   jz   .AddBucketLSB

   mov  A, 255

   jmp  .AddBucketConst

.ARST_disabled:

   ; Compare to Noise Threshold

   cmp [X+CSD_1_waSnsDiff+MSB], 0

   jnz  .InitLowBaselineReset

   mov A, [CSD_1_bNoiseThreshold]

   cmp A, [X+CSD_1_waSnsDiff+LSB]

   jc .InitLowBaselineReset

-Arvind