Hello,
This is my first post so please let me know if I placed this in the wrong place.
I was trying to compile the "hardware_mars_beacon_16f1398" Demo PWM Sample
I change the chip setting to 16F1455 as that is the PIC Chip I have. Looking at the error I think this has something to do with the CCP configuration difference with my 16F1455 chip verse the original.
I reviewed the datasheet for the 16f1455 and changed the PORT setting to PORTA.3, PORTA.5 and PORTC.5 which are the three ports available to the 16F1455 for PWM
My guess is there is some configuration that is not right but I don't know where to look.
The full errors I am getting are:
Error: GCASM: Symbol [SFR]CCP1M3 has not been defined. Inspect ASM file to
determine error at ANDWF CCP1M3, W Hexfile address(see lst file): 00010F
Error: GCASM: Symbol [SFR]CCP1M2 has not been defined. Inspect ASM file to
determine error at ANDWF CCP1M2, W Hexfile address(see lst file): 000118
Error: GCASM: Symbol [SFR]CCP1M1 has not been defined. Inspect ASM file to
determine error at ANDWF CCP1M1, W Hexfile address(see lst file): 000121
Error: GCASM: Symbol [SFR]CCP1M0 has not been defined. Inspect ASM file to
determine error at ANDWF CCP1M0, W Hexfile address(see lst file): 00012A
Could someone please tell me what I have done incorrectly here please?
David
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OK well never mind I seem to have found my answer but I really don't understand why
I found in the HELP file a reference to PWM example that included these lines:
'#define USE_HPWMCCP1 FALSE ' This is not used so optimise
'#define USE_HPWMCCP2 TRUE ' This is used so include in the compiled code
'#define USE_HPWMCCP3 FALSE ' This is not used so optimise
'#define USE_HPWMCCP4 FALSE ' This is not used so optimise
The 16f1455 has two CCP modules #1 and #2 and I choose CCP2 hence the above #defind
but I do not understand why the previous sample code that has the 16f1938 did not have these. So I found the answer to my problem but don't understand why.
If someone could explain this I would be grateful
David
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Dear Anobium
Thank you for the reply,
Attached is my program that will reproduce the problem. if you uncomment the #define lines I marked then the problem goes away.
If you need anything else from me please let me know.
Thank you
The issue is caused because the compiler ( incorrectly) assumed that every chip has CCP/PWM. The 16F154x chips do not. So, when the PWM library tries to set some registers.bit the error happens, because the register.bit(s) do not exist.
The adding of the constants disables that section of the code hence the error message is removed. Where USE_HPWMCCP1 FALSE disable the CCP1/PWM portion of the library.
The real fix is to test for the CCP1/PWM. Which I have changed. So, in the future the additional constants will not be required.
Hope this explains.
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Very Cool Thank you for the explanation. This is interesting as the Datasheet for this chip does reference "CPP" but I guess it is not the same as the compiler is looking for. Is there a #if Define that I can test to see if I need to manually add the "USE_HPWMCPP FALSE" line?
David
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hello,
This is my first post so please let me know if I placed this in the wrong place.
I was trying to compile the "hardware_mars_beacon_16f1398" Demo PWM Sample
I change the chip setting to 16F1455 as that is the PIC Chip I have. Looking at the error I think this has something to do with the CCP configuration difference with my 16F1455 chip verse the original.
I reviewed the datasheet for the 16f1455 and changed the PORT setting to PORTA.3, PORTA.5 and PORTC.5 which are the three ports available to the 16F1455 for PWM
My guess is there is some configuration that is not right but I don't know where to look.
The full errors I am getting are:
Error: GCASM: Symbol [SFR]CCP1M3 has not been defined. Inspect ASM file to
determine error at
ANDWF CCP1M3, WHexfile address(see lst file): 00010FError: GCASM: Symbol [SFR]CCP1M2 has not been defined. Inspect ASM file to
determine error at
ANDWF CCP1M2, WHexfile address(see lst file): 000118Error: GCASM: Symbol [SFR]CCP1M1 has not been defined. Inspect ASM file to
determine error at
ANDWF CCP1M1, WHexfile address(see lst file): 000121Error: GCASM: Symbol [SFR]CCP1M0 has not been defined. Inspect ASM file to
determine error at
ANDWF CCP1M0, WHexfile address(see lst file): 00012ACould someone please tell me what I have done incorrectly here please?
David
Hllo,
OK well never mind I seem to have found my answer but I really don't understand why
I found in the HELP file a reference to PWM example that included these lines:
'#define USE_HPWMCCP1 FALSE ' This is not used so optimise
'#define USE_HPWMCCP2 TRUE ' This is used so include in the compiled code
'#define USE_HPWMCCP3 FALSE ' This is not used so optimise
'#define USE_HPWMCCP4 FALSE ' This is not used so optimise
The 16f1455 has two CCP modules #1 and #2 and I choose CCP2 hence the above #defind
but I do not understand why the previous sample code that has the 16f1938 did not have these. So I found the answer to my problem but don't understand why.
If someone could explain this I would be grateful
David
Hello David,
Perfect place to post.
I can help explain if you post the errant program ( so recreate the issue for me).. Attach the GCB program to a post.
Dear Anobium
Thank you for the reply,
Attached is my program that will reproduce the problem. if you uncomment the #define lines I marked then the problem goes away.
If you need anything else from me please let me know.
Thank you
Thank you for sharing.
The issue is caused because the compiler ( incorrectly) assumed that every chip has CCP/PWM. The 16F154x chips do not. So, when the PWM library tries to set some registers.bit the error happens, because the register.bit(s) do not exist.
The adding of the constants disables that section of the code hence the error message is removed. Where
USE_HPWMCCP1 FALSEdisable the CCP1/PWM portion of the library.The real fix is to test for the CCP1/PWM. Which I have changed. So, in the future the additional constants will not be required.
Hope this explains.
Very Cool Thank you for the explanation. This is interesting as the Datasheet for this chip does reference "CPP" but I guess it is not the same as the compiler is looking for. Is there a #if Define that I can test to see if I need to manually add the "USE_HPWMCPP FALSE" line?
David