Activity for Daniel Cioba
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Daniel Cioba posted a comment on discussion Great Cow Graphical BASIC Problems
Now is working , good job Anobius !!! What was the problem , if you want to share it with us ? And one more question , what is the ADC speed since these PIC's have many more clocking options than High , Medium and Low ?
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Ok
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Sorry , not changing , same value for ADFVR_OFF , 4x , 2x , 1x , still using Vdd as Vref , the library is from the archive you uploaded , it was made ( last time modified ) in 16-07-2017 . These microcontrollers are for sure very closed related like many more that use FVR register , but are not identical ... since don't share the same datasheet .
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Sorry , not changing , exactly as before , the library is from the archive you uploaded , it was made ( last time modified ) in 16-07-2017 . These microcontrollers are for sure very closed related like many more that use FVR register , but are not identical ... since don't share the same datasheet .
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Sorry , not changing , exactly as before , the library is from the archive you uploaded , it was made ( last time modified ) in 16-07-2017 . These microcontrollers are for sure very closed related like many more that use FVR registers , but are not identical ... since don't share the same datasheet .
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Sorry , not changing , exactly as before , the library is from the archive you uploaded before , it was made ( last time modified ) in 16-07-2017 . These microcontrollers are for sure very closed related like many more that use FVR registers , but are not identical ... since don't share the same datasheet .
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Here you have both test programs , just adapted for my setup . In this case it seems that simulation is far far away from reality . Edit: Sorry , I made myself a mistake , Vref non selectable was allways at Vdd not 4V , but i only have 4,6V power supply and Vref = 4,096 is in fact allmost 4,4V on this chip , they are pretty close. So internal reference can't be selected at all with GC instructions .
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Here you have both test programs , just adapted for my setup . In this case it seems that simulation is far far away from reality . Edit: Sorry , I made myself a mistake , Vref non selectable was allways at Vdd not 4V , but i only have 4,6V power supply and Vref = 4,096 is in fact allmost 4,4V on this chip , so they are pretty close. So internal reference can't be selected at all with GC instructions .
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Here you have both test programs , just adapted for my setup . In this case it seems that simulation is far far away from reality . Edit: Sorry , I made myself a mistake , Vref non selectable was allways at Vdd not 4V , but i only have 4,6V power supply and Vref = 4,096 is in fact allmost 4,4V on this chip , so they are pretty close.
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Here you have both test programs , just adapted for my setup . In this case it seems that simulation is far far away from reality . Edit: Sorry , I made myself a mistake , Vref non selectable was allways at Vdd not 4V , but i only have 4,6V power supply and Vref = 4,096 is in fact allmost 4,4V , so they are pretty close.
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Here you have both test programs , just adapted for my setup . In this case it seems that simulation is far far away from reality .
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Here you have both test programs , just adapted for my setup . It seems in this case that simulation is far far away from reality .
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Here you have both test programs , just adapted for my setup .
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Ok , I tested , FVR001 is changing Vref and is working ok , FVR002 is not , the reading is good for Vref = 4V but not changing
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Ok , I tested , FVR001 is changing Vref and is working ok , FVR002 is not , just shows the same reading only for Vref = 4V.
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OK , with William's program ( setting registers manualy ) I can change Vref 1 , 2 , 4V , and is working as it should be . But Anobium , using #define ADReadPreReadCommand ADCON0 = ADCON0 or b'01111100' and ADFVR_Initialize ( ADFVR_2x ) I just got one "garbage" value around 450 which won't change even if the input is grounded , ADC is not working properly .
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OK , with William's program ( writing registers manualy )I can change Vref 1 , 2 , 4V , and is working as it should be . But Anobium , using #define ADReadPreReadCommand ADCON0 = ADCON0 or b'01111100' and ADFVR_Initialize ( ADFVR_2x ) I just got one "garbage" value around 450 which won't change even if the input is grounded , ADC is not working properly .
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OK , with William's program ( writing registers manualy )I can change Vref 1 , 2 , 4V , and is working as it should be . But Anobium , using #define ADReadPreReadCommand ADCON0 = ADCON0 or b'01111100' and ADFVR_Initialize ( ADFVR_2x ) , or 1x , 4x , I just got one "garbage" value around 450 which won't change even if the input is grounded , ADC is not working properly .
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OK , with William's program ( writing registers manualy )I can change Vref 1 , 2 , 4V , and is working as it should be . But Anobium , using #define ADReadPreReadCommand ADCON0 = ADCON0 or b'01111100' and ADFVR_Initialize ( ADFVR_2x ) , or 1x , 4x , I just got one "garbage" value around 450 which won't change , ADC is not working properly .
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OK , with William's program ( writing registers manualy )I can change Vref 1 , 2 , 4V , and is working as it should be . But Anobium , using #define ADReadPreReadCommand ADCON0 = ADCON0 or b'01111100' and ADFVR_Initialize ( ADFVR_2x ) , or 1x , 4x , I just got one "garbage" value allmost full range 900+ , ADC is not working properly
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OK , with William's program I can change Vref 1 , 2 , 4V , and is working as it should be . But Anobium , using #define ADReadPreReadCommand ADCON0 = ADCON0 or b'01111100' and ADFVR_Initialize ( ADFVR_2x ) , or 1x , 4x , I just got one "garbage" value allmost full range 900+ , ADC is not working properly
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OK , with William's program I can change Vref 1 , 2 , 4V , and is working as it should be . But Anobium , using #define ADReadPreReadCommand ADCON0 = ADCON0 or b'01111100' and ADFVR_Initialize ( ADFVR_2x ) , or 1x , 4x , I just got one "garbage" value allmost full range 900+ and ADC is not working properly
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OK , with William's program I can change Vref 1 , 2 , 4V , and is working as it should be . But Anobium , using #define ADReadPreReadCommand ADCON0 = ADCON0 or b'01111100' and ADFVR_Initialize ( ADFVR_2x ) , or 1x , 4x , I just get one "garbage" value allmost full range and ADC is not working properly
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OK , with William's program I can change Vref 1 , 2 , 4V , and is working as it should be . But Anobium , using #define ADReadPreReadCommand ADCON0 = ADCON0 or b'01111100' and ADFVR_Initialize ( ADFVR_2x ) I get just some "garbage" readings . ADC is not working properly .
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You are right , but for one project ( not mass production ) it is simple to measure exactly the Vref for that chip ( in this case indirect measurement of input voltage at which we have full scale reading 1023 ), and adjust the software .
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You are right , but for one project ( not mass production ) it is simple to measure exactly the Vref for that chip ( in this case indirect measurement of input voltage at which we have full scale riding 1023 ), and adjust the software .
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The issue is simple ... non selectable Vref with GC ADC library . Why is not working and how to resolve , of course i don't know yet .
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You are right , but for one project ( not mass production ) it is simple to measure exactly the Vref for that chip , and adjust the software .
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You are right , but if you can't use an input multiturn pot , for one project ( not mass production ) it is simple to measure exactly the Vref for that chip , and adjust the software .
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Hi , the same as before ... have you discovered something ? Is working ok in simulation or practical ?
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In datasheet at Electrical Specifications "For proper operation, the minimum value of the ADC positive voltage reference must be 1.8V or greater. When selecting the FVR or the VREF+ pin as the source of the ADC positive voltage reference, be aware that the voltage must be 1.8V or greater" But thats a separate issue , ADC will work anyway with degraded performance ( analog part ) . May be still usefull for some applications . Every ADC with external Ref has a minimum voltage , you can't go under 1V...
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In datasheet at Electrical Specifications "For proper operation, the minimum value of the ADC positive voltage reference must be 1.8V or greater. When selecting the FVR or the VREF+ pin as the source of the ADC positive voltage reference, be aware that the voltage must be 1.8V or greater" But thats a separate issue , ADC will work anyway with degraded performance ( analog part ) . May be still usefull for some applications .
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In datasheet at Electrical Specifications "For proper operation, the minimum value of the ADC positive voltage reference must be 1.8V or greater. When selecting the FVR or the VREF+ pin as the source of the ADC positive voltage reference, be aware that the voltage must be 1.8V or greater" But thats a separate issue , ADC will work anyway but with degraded performance ( analog part ) . May be still usefull for some applications .
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In datasheet at Electrical Specifications "For proper operation, the minimum value of the ADC positive voltage reference must be 1.8V or greater. When selecting the FVR or the VREF+ pin as the source of the ADC positive voltage reference, be aware that the voltage must be 1.8V or greater" But thats a separate issue , ADC will work anyway but with degraded performance . May be still usefull for some applications .
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In datasheet at Electrical Specifications "For proper operation, the minimum value of the ADC positive voltage reference must be 1.8V or greater. When selecting the FVR or the VREF+ pin as the source of the ADC positive voltage reference, be aware that the voltage must be 1.8V or greater" But thats a separate issue , ADC will work anyway but with degraded performance . May be still usefull for some applications .
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In datasheet at Electrical Specifications "For proper operation, the minimum value of the ADC positive voltage reference must be 1.8V or greater. When selecting the FVR or the VREF+ pin as the source of the ADC positive voltage reference, be aware that the voltage must be 1.8V or greater But thats a separate issue , ADC will work anyway but with degraded performance . May be still usefull for some applications .
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I datasheet at Electrical Specifications "For proper operation, the minimum value of the ADC positive voltage reference must be 1.8V or greater. When selecting the FVR or the VREF+ pin as the source of the ADC positive voltage reference, be aware that the voltage must be 1.8V or greater But thats a separate issue , ADC will work anyway but with degraded performance . May be still usefull for some applications .
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http://microchipdeveloper.com/8bit:fvr I will see if ADC works well ( full range , liniarity , etc ) at 1V REF after I can select that ... thats my problem now . Anyway I can't select neither 1V nor 2V .
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I will try to look at your code , but i'm not very familiar with it , also i got PIC16F1936 , 1938 with the same reference register , I will check if with this microcontroller works .
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Ok , the schematic is here ... of course for testing the circuit is simplified , I have one input as IN1 and I can jump over the resistive divider if I want ... not the circuit is the issue . If an ADC input is fixed at 1V , lets say ( aprox 0,8V in my case ) , if you change the refference at 1V will read aprox 1023 , with 2V 512 and with 4V aprox 250 . Very easy to see if refference is changing or not . So I got 175 all the time I change ADFVR_Initialize ... and 0 if i use ADSpeed High I worked...
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Ok , the schematic is here ... of course for testing the circuit is simplified , I have one input as IN1 and I can jump over the resistive divider if I want ... not the circuit is the issue . If an ADC input is fixed at 1V , lets say ( aprox 0,8V in my case ) , if you change the refference at 1V will read aprox 1023 , with 2V 512 and with 4V aprox 250 . Very easy to see if refference is changing or not . So I got 175 all the time I change ADFVR_Initialize ... I worked with ADC in many projects ,...
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Ok , the schematic is here ... of course for testing the circuit is simplified , I have one input as IN1 and I can jump over the resistive divider if I want ... not the circuit is the issue . If an ADC input is fixed at 1V , lets say ( aprox 0,8V in my case ) , if you change the refference at 1V will read aprox 1023 , with 2V 512 and with 4V aprox 250 . Very easy to see if refference is changing or not . So I got 170 all the time I change ADFVR_Initialize ... I worked with ADC in many projects ,...
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Ok , the schematic is here ... of course for testing the circuit is simplified , I have one input as IN1 and I can jump over the resistive divider if I want ... not the circuit is the issue . If an ADC input is fixed at 1V , lets say ( aprox 0,8V in my case ) , if you change the refference at 1V will read aprox 1023 , with 2V 512 and with 4V aprox 200 . Very easy to see if refference is changing or not . So I got 170 all the time I change ADFVR_Initialize ... I worked with ADC in many projects ,...
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Ok , the schematic is here ... of course for testing the circuit is simplified , I have one input as IN1 and I can jump over the resistive divider if I want ... not the circuit is the issue . If an ADC input is fixed at 1V , lets say ( aprox 0,8V in my case ) , if you change the refference at 1V will read aprox 1023 , with 2V 512 and with 4V aprox 200 . Very easy to see if refference is changing or not . So I got 170 all the time I change ADFVR_Initialize ... I worked with ADC in many projects ,...
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Ok , the schematic is here ... of course for testing the circuit is simplified , I have one input as IN1 and I can jump if I want over the resistive divider ... not the circuit is the issue , if an ADC input is fixed at 1V , lets say ( aprox 0,8V in my case ) , if you change the refference at 1V will read aprox 1023 , with 2V 512 and with 4V aprox 200 . Very easy to see if refference is changing or not . So I got 170 all the time I change ADFVR_Initialize ... I worked with ADC in many projects ,...
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It is the same with no optimisation ... only 4V Vref and "0" reading with HighSpeed .
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I checked again , ADC work normally , the PIC16F1828 is new ( i have many ) . With Normal ( I asume this is anyway the default value used in library ) and Low is full range 0 - 4V , with High is allways 0. This issue was present from the start , with the original library , but i didn't mentioned it before .
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OK , here is the very basic code i'm using for testing
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I tried again but is not working yet . Same as before , I can't change Vref . Also , if i use#define ADSpeed HighSpeed the reading is "0" . Medium and low give normal readings , not sure if the ADC speed is actually changing .
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So far the result is exactly the same as with the old library . ADC of course is working , but Vref is "stuck" at 4,096V. Even with , ADFVR_Initialize (ADFVR_OFF) the readings are the same . I didn't use the FVR test yet , so i don't know if that is working . The hardware is simple , I use the PIC and an LCD display to measure a DC voltage . The program is displaying the ADC value read ( 0 - 1023 ) , so i can easily see if the value is changing.
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THX for the update , i read the help but i cant find so far how to use the updated functionality . Just to add in program #define ADFVR_Initialize ( ADFVR_2x ) if i want 2,048V Ref ?
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THX for the update , i red the help but i cant find so far how to use the updated functionality . Just to add in program #define ADFVR_Initialize ( ADFVR_2x ) if i want 2,048V Ref ?
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Thx , I asked because I thought it was possible somehow to change it simple and still using GC instructions readad10 , etc . Probably not implemented yet .
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Hi , how can i change internal reference between 1V , 2V , 4V when using ADC ?
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Sorry , i made a mistake , Timer4 is working fine , only Timer6 is not Compiler error...
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Sorry , i made a mistake , Timer4 is working fine , only Timer6 is not Compiler error...
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Hi , i use last GCB stable release ,i think, that i downloaded from official site...
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Hi , i use last GCB release ,i think, that i downloaded from official site http://gcbasic.sourceforge.net/...
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I use PIC16F1936 as in my post title. It has Timer0 , 1 , 2 , 4 and 6. Only Timer0...
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Hi , how can i use timer 4/6 and their interrupts ? It doesn't seems to be implemented...
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