Thanks both!
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Re: My TMR1_INT Blinky is not blinking
Thanks both!
My Creality Ender 3 S1 Plus is a giant paperweight that can't even be used as a boat anchor, cause I'd be fined for polluting our waterways with electronic devices.
Not as dumb as yesterday, but stupider than tomorrow!
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Re: My TMR1_INT Blinky is not blinking
I get 66.18msec intervals. I'd like to bring that down to 65msec.
MultiCalc says 536 decimal pre-load gives 65mSec (32MHz, 16bits, 1:8)
How do you store 536 in TMR1H and TMR1L?
I manually get this in binary for 536:
00000010 00011000
In decimal, that gives 2 24.
Code:#CONFIG __config _CONFIG1, _FEXTOSC_OFF & _RSTOSC_HFINT32 & _CLKOUTEN_OFF & _CSWEN_OFF & _FCMEN_ON __config _CONFIG2, _MCLRE_ON & _PWRTE_OFF & _LPBOREN_OFF & _BOREN_ON & _BORV_LO & _ZCD_OFF & _PPS1WAY_OFF & _STVREN_ON & _DEBUG_OFF __config _CONFIG3, _WDTCPS_WDTCPS_11 & _WDTE_OFF & _WDTCWS_WDTCWS_7 & _WDTCCS_LFINTOSC __config _CONFIG4, _WRT_OFF & _SCANE_available & _LVP_OFF __config _CONFIG5, _CP_OFF & _CPD_OFF #ENDCONFIG include "I:\Project_v2\PBP\PBP_Includes\DT_INTS-14_16F18877.bas" include "I:\Project_v2\PBP\PBP_Includes\ReEnterPBP.bas" ASM INT_LIST macro ; IntSource, Label, Type, ResetFlag? INT_Handler TMR1_INT, _ToggleLED1, PBP, yes endm INT_CREATE ; Creates the interrupt processor ENDASM DEFINE OSC 32 ANSELA = %00000000 ANSELB = %00000000 ANSELC = %00000000 ANSELD = %00000000 ANSELE = %00000000 TRISA = %00000000 TRISB = %00000000 TRISC = %00000000 TRISD = %00000000 TRISE = %00000000 T1CON = %00110001 ' 1:8 Prescale, Enables Timer1 ' bit 7-6 Unimplemented: Read as ‘0’ ' bit 5-4 CKPS<1:0>: Timer1 Input Clock Prescale Select bits ' ----> 11 = 1:8 Prescale value ' 10 = 1:4 Prescale value ' 01 = 1:2 Prescale value ' 00 = 1:1 Prescale value ' bit 3 Unimplemented: Read as ‘0’ ' bit 2 SYNC: Timer1 Synchronization Control bit ' When TMR1CLK = FOSC or FOSC/4 ' This bit is ignored. The timer uses the internal clock and no ' additional synchronization is performed. ' When TMR1CS<1:0> = (any setting other than FOSC or FOSC/4) ' 1 = Do not synchronize external clock input ' 0 = Synchronized external clock input with system clock ' bit 1 RD16: Timer1 On bit ' 1 = All 16 bits of Timer1 can be read simultaneously (TMR1H is buffered) ' 0 = 16-bit reads of Timer1 are disabled (TMR1H is not buffered) ' bit 0 ON: Timer1 On bit ' ----> 1 = Enables Timer1 ' 0 = Stops Timer1 and clears Timer1 gate flip-flop T1CLK = %00000001 ' FOSC/4 Timer1 Clock ' bit 7-4 Unimplemented: Read as ‘0’ ' bit 3-0 TxCS<3:0>: Timer1/3/5 Clock Select bits ' 1111 = LC4_out ' 1110 = LC3_out ' 1101 = LC2_out ' 1100 = LC1_out ' 1011 = TMR5 overflow output(3) ' 1010 = TMR3 overflow output(2) ' 1001 = TMR1 overflow output(1) ' 1000 = TMR0 overflow output ' 0111 = CLKR output clock ' 0110 = SOSC ' 0101 = MFINTOSC ' 1.05msec @ 32MHz with no preload ' 0100 = LFINTOSC ' n/a ' 0011 = HFINTOSC ' 16.56msec @ 32MHz with no preload ' 0010 = FOSC ' 16.54msec @ 32MHz with no preload ' ----> 0001 = FOSC/4 ' 66.18msec @ 32MHz with no preload ' 0000 = TxCKIPPS TOGGLE PortB.4 TMR1H = 2 : TMR1L = 24 ' TMR1H = 4 : TMR1L = 161 PIE4.0 = 1 ' Activates Timer1 Main: TOGGLE PortB.5 ' Heartbeat GOTO Main ToggleLED1: PIE4.0 = 0 ' Stops Timer1 TOGGLE PortB.4 T1CON.0 = 0 ' Resets Timer1 gate T1CON.0 = 1 TMR1H = 2 : TMR1L = 24 ' TMR1H = 4 : TMR1L = 161 PIE4.0 = 1 ' Restarts Timer1 @ INT_RETURN
TMR1H = 2 : TMR1L = 24 gives 65.6mSec intervals according to Logic.
I have to use TMR1H = 4 : TMR1L = 161 to get 65.05mSec (after a lot of trial and error).
I must be doing something wrong...?
My Creality Ender 3 S1 Plus is a giant paperweight that can't even be used as a boat anchor, cause I'd be fined for polluting our waterways with electronic devices.
Not as dumb as yesterday, but stupider than tomorrow!
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Re: My TMR1_INT Blinky is not blinking
internal osc, what is the error %...... xtal osc matches with multicalc calculations
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Re: My TMR1_INT Blinky is not blinking
Originally Posted by amgen
I hadn't thought of that.High-Precision Internal Oscillator:
- Software selectable frequency range up to 32 MHz, ±1% typical
My Creality Ender 3 S1 Plus is a giant paperweight that can't even be used as a boat anchor, cause I'd be fined for polluting our waterways with electronic devices.
Not as dumb as yesterday, but stupider than tomorrow!
|
Re: My TMR1_INT Blinky is not blinking
Lets have a look at this
Code:ToggleLED1: PIE4.0 = 0 ' Stops Timer1 no it dosent TOGGLE PortB.4 T1CON.0 = 0 ' Resets Timer1 gate no it dosent T1CON.0 = 1 TMR1H = 2 : TMR1L = 24 ' TMR1H = 4 : TMR1L = 161 PIE4.0 = 1 ' Restarts Timer1 no it dosent @ INT_RETURN
should be more like
Code:ToggleLED1: T1CON.0 = 0 ' Stops Timer1 TMR1H = 2 : TMR1L = 18 T1CON.0 = 1 ' Restarts Timer1 TOGGLE PortB.4 @ INT_RETURN
Warning I'm not a teacher
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Re: My TMR1_INT Blinky is not blinking
to get 65ms from my chip
TMR1H = 0 : TMR1L = 18
is required, so the int osc is not all that accurate
with multicalc figure i get about 64.8mS
Warning I'm not a teacher
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Re: My TMR1_INT Blinky is not blinking
Now I'm confused.I thought you said I had to handle it?
This runs 50msec non-stop:
Code:#CONFIG __config _CONFIG1, _FEXTOSC_OFF & _RSTOSC_HFINT32 & _CLKOUTEN_OFF & _CSWEN_OFF & _FCMEN_ON __config _CONFIG2, _MCLRE_ON & _PWRTE_OFF & _LPBOREN_OFF & _BOREN_ON & _BORV_LO & _ZCD_OFF & _PPS1WAY_OFF & _STVREN_ON & _DEBUG_OFF __config _CONFIG3, _WDTCPS_WDTCPS_11 & _WDTE_OFF & _WDTCWS_WDTCWS_7 & _WDTCCS_LFINTOSC __config _CONFIG4, _WRT_OFF & _SCANE_available & _LVP_OFF __config _CONFIG5, _CP_OFF & _CPD_OFF #ENDCONFIG include "I:\Project_v2\PBP\PBP_Includes\DT_INTS-14_16F18877.bas" include "I:\Project_v2\PBP\PBP_Includes\ReEnterPBP.bas" ASM INT_LIST macro ; IntSource, Label, Type, ResetFlag? INT_Handler TMR1_INT, _ToggleLED1, PBP, yes endm INT_CREATE ; Creates the interrupt processor ENDASM DEFINE OSC 32 ANSELA = %00000000 ANSELB = %00000000 ANSELC = %00000000 ANSELD = %00000000 ANSELE = %00000000 TRISA = %00000000 TRISB = %00000000 TRISC = %00000000 TRISD = %00000000 TRISE = %00000000 T1CON = %00110001 ' 1:8 Prescale, Enables Timer1 ' bit 7-6 Unimplemented: Read as ‘0’ ' bit 5-4 CKPS<1:0>: Timer1 Input Clock Prescale Select bits ' ----> 11 = 1:8 Prescale value ' 10 = 1:4 Prescale value ' 01 = 1:2 Prescale value ' 00 = 1:1 Prescale value ' bit 3 Unimplemented: Read as ‘0’ ' bit 2 SYNC: Timer1 Synchronization Control bit ' When TMR1CLK = FOSC or FOSC/4 ' This bit is ignored. The timer uses the internal clock and no ' additional synchronization is performed. ' When TMR1CS<1:0> = (any setting other than FOSC or FOSC/4) ' 1 = Do not synchronize external clock input ' 0 = Synchronized external clock input with system clock ' bit 1 RD16: Timer1 On bit ' 1 = All 16 bits of Timer1 can be read simultaneously (TMR1H is buffered) ' 0 = 16-bit reads of Timer1 are disabled (TMR1H is not buffered) ' bit 0 ON: Timer1 On bit ' ----> 1 = Enables Timer1 ' 0 = Stops Timer1 and clears Timer1 gate flip-flop T1CLK = %00000001 ' FOSC/4 Timer1 Clock ' bit 7-4 Unimplemented: Read as ‘0’ ' bit 3-0 TxCS<3:0>: Timer1/3/5 Clock Select bits ' 1111 = LC4_out ' 1110 = LC3_out ' 1101 = LC2_out ' 1100 = LC1_out ' 1011 = TMR5 overflow output(3) ' 1010 = TMR3 overflow output(2) ' 1001 = TMR1 overflow output(1) ' 1000 = TMR0 overflow output ' 0111 = CLKR output clock ' 0110 = SOSC ' 0101 = MFINTOSC ' 1.05msec @ 32MHz with no preload ' 0100 = LFINTOSC ' n/a ' 0011 = HFINTOSC ' 16.56msec @ 32MHz with no preload ' 0010 = FOSC ' 16.54msec @ 32MHz with no preload ' ----> 0001 = FOSC/4 ' 66.18msec @ 32MHz with no preload ' 0000 = TxCKIPPS LatB.0 = 0 TMR1H = 60 : TMR1L = 176 ' 50msec interval (32MHz, 16bit, 1:8) PIE4.0 = 1 ' Starts Timer1 LatB.0 = 1 Main: LatB.5 = 1 ' Heartbeat LatB.5 = 0 GOTO Main ToggleLED1: LatB.0 = 0 ' PIE4.0 = 0 ' Stops Timer1 TMR1H = 60 : TMR1L = 176 ' 50msec interval (32MHz, 16bit, 1:8) ' PIE4.0 = 1 ' Restarts Timer1 LatB.0 = 1 @ INT_RETURN
This starts it once (same defines and registers):
Code:ToggleLED1: LatB.0 = 0 PIE4.0 = 0 ' Stops Timer1 TMR1H = 60 : TMR1L = 176 ' 50msec interval (32MHz, 16bit, 1:8) ' PIE4.0 = 1 ' Restarts Timer1 LatB.0 = 1 @ INT_RETURN
This stops it, then starts it back up again (this is what I need for my project):
Code:ToggleLED1: LatB.0 = 0 PIE4.0 = 0 ' Stops Timer1 TMR1H = 60 : TMR1L = 176 ' 50msec interval (32MHz, 16bit, 1:8) PIE4.0 = 1 ' Restarts Timer1 LatB.0 = 1 @ INT_RETURN
My Creality Ender 3 S1 Plus is a giant paperweight that can't even be used as a boat anchor, cause I'd be fined for polluting our waterways with electronic devices.
Not as dumb as yesterday, but stupider than tomorrow!
|
Re: My TMR1_INT Blinky is not blinking
yes with the newer chips some interrupt enable bits and flags have been relocated from INTCON reg into PIEx/PIRx regsdt ints will not enable intcon PEIE you need to
I'm not convinced dt-ints14 will always set the PEIE bit in INTCON when needed in all cases so i do it manually.
to set PEIE WITH GIE use
INTCON=$C0
for this chip and timer1 interrupts its not necessary dt-ints will set PEIE for you but this has no relationship with PIE4.0, i have no idea how you made that inference
just how does PIE4.0 = 0 stop the timer ?
writing to the timer like this when its still running is a very bad idea
TMR1H = 60 : TMR1L = 176 ' 50msec interval (32MHz, 16bit, 1:8)
Warning I'm not a teacher
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