Hi;
We would need to program the PE0 as TCLKF input.
How would it do?
BR
Hi;
We would need to program the PE0 as TCLKF input.
How would it do?
BR
What product are you using?
We are using the RCM5700
Hi;
We have tested the same functionality with PC4 as TCLKE input and it works.
Follow secuences are the register programing that we have done for both clocks.
PC4/TCLKE
1.- Bit 4 PCDDR = 0 (Input)
2.- Bit 4 PCDCR = 0 (I think that it is not necesary because is an input.)
3.- Bit 0:1 PCAHR =00 (I think that it is not necesary because is an input.)
4.- Bit 4 PCFR = 1 (bit 4 parallel port C as Alternate function)
5.- Later on when I open the HDLC port we have used the function HDLCextClockE(1) included on HDLC_PACKET.LIB
This configuration it works propertly
PE0/TCLKF
1.- Bit 0 PEDDR = 0 (Input)
2.- Bit 0 PEDCR = 0 (I think that it is not necesary because is an input.)
3.- Bit 0:1 PEALR =00 ((I think that it is not necesary because is an input)
4.- Bit 4 PEFR = 1 (bit 0 parallel port E as Alternate function)
5.- Later on when I open the HDLC port we have used the function HDLCextClockF(1) included on HDLC_PACKET.LIB
This configuration it does not work.
BR
Have you set the HDLC_F_USEPORT macro to E to tell the HDLC library which port to use for serial port F?
Regards,
Peter
Hi;
Right now we are not using #define HDLC_F_USEPORT.
I think that the macro, would must be used when we want to use the port E as F, is not it?
Really I can understand very well what do this macro.
Our design we would want to use both sync ports E & F.
The port E & F pinouts for our hardware design are as follow:
Port E:
-TXE: PE6
-TCLKE: PC4
-RCLKE: PE5
-RXE: PE7
Port F:
-TXF:PE2
-TCLKF: PE0
-RCLKF: PE1
-RXF: PE3
br
There is a HDLC_E_USEPORT and a HDLC_F_USEPORT macro. Both of them should be defined to indicate which parallel port each of the serial ports is using. They both default to D if not set by the user.
These are used to enable the init functions program the correct port pin configurations.
Regards,
Peter
I have tested the macros
#define HDLC_F_USEPORT E
#define HDLC_E_USEPORT C
but the port PE0/TCLKF still is not working as an input clock.
If we see the signal with oscilloscope, the clock is above 3.3V, however with PC4/TCLKE does not happen it is on 0V
Exactly ports configuration is as follow
WrPortI(PCDDR,&PCDDRShadow,0x41);
WrPortI(PEDDR,&PEDDRShadow,0xFE);
// Parallel port C, D and E output type configuration (0-Driven high/low 1-Open drain)
WrPortI(PCDCR,&PCDCRShadow,0x00);
WrPortI(PEDCR,&PEDCRShadow,0x00);
// Parallel port C, D and E alternate options output pins configuration
WrPortI(PCALR,&PCALRShadow,0x00);
WrPortI(PCAHR,&PCAHRShadow,0x00);
WrPortI(PEALR,&PEALRShadow,0xFC);
WrPortI(PEAHR,&PEAHRShadow,0xFF);
// Parallel port C, D and E alternate options input pins configuration
// Parallel port C, D and E type configuration (0-I/O 1-Alternate function)
WrPortI(PCFR,&PCFRShadow,0xFA);
WrPortI(PEFR,&PEFRShadow,0xFF);
Later on we used
HDLCopenE
HDLCopenF
and
HDLCextClockE(1);
HDLCextClockF(1);
Is it not necessary to configure other registers?
BR