Am I crazy? SHIFTIN problem...
Steel
Posts: 313
Wierd.· For some reason, I am not able to get the correct variable value for my shiftin.· I feel silly with this issue..
When I scope the clock and data lines, they show correct information.
When I debug out my data, it shows "FF", even though it shouldn't.
Has anybody come across this?
Here are the important parts of my code:
'PINS:
·ALARM_DATA··VAR·RB.3
·ALARM_SH_LD··VAR·RB.4
·ALARM_CLK··VAR·RB.5
'Variables:
ALARM_BLOCK ·VAR BYTE
'Start Code:
LOW ALARM_SH_LD
'Shift
·HIGH ALARM_SH_LD
··SHIFTIN ALARM_DATA, ALARM_CLK, MSBFIRST, ALARM_BLOCK
··LOW ALARM_SH_LD
...at this point, All of the data is visible at the correct pins on the SX Chip.
When I debug it out to my PC:
SEROUT XBEE_DIN, T115200, ALARM_BLOCK
I recieve "FF".· The baud is set correctly, and I am using a 50MHz crystal.
Has anybody else come across this?· any help would be appreciated.
Shaun
When I scope the clock and data lines, they show correct information.
When I debug out my data, it shows "FF", even though it shouldn't.
Has anybody come across this?
Here are the important parts of my code:
'PINS:
·ALARM_DATA··VAR·RB.3
·ALARM_SH_LD··VAR·RB.4
·ALARM_CLK··VAR·RB.5
'Variables:
ALARM_BLOCK ·VAR BYTE
'Start Code:
LOW ALARM_SH_LD
'Shift
·HIGH ALARM_SH_LD
··SHIFTIN ALARM_DATA, ALARM_CLK, MSBFIRST, ALARM_BLOCK
··LOW ALARM_SH_LD
...at this point, All of the data is visible at the correct pins on the SX Chip.
When I debug it out to my PC:
SEROUT XBEE_DIN, T115200, ALARM_BLOCK
I recieve "FF".· The baud is set correctly, and I am using a 50MHz crystal.
Has anybody else come across this?· any help would be appreciated.
Shaun
Comments
For SHIFTIN use MSBPRE, MSBPOST, LSBPRE, OR LSBPOST
See if one of those options works.
Bean.
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SX-Video Display Modules www.sxvm.com
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The interesting thing is that the dataline is never high before or after the shift. I don't know what it would be recieving ANY High signals from...
This is odd...