Matrix user forums

... changed the target to the 16f 1937 for board testing which allows me to use the e blocks keypad ... I've got the OSCCON settings correct with a 1Hz flash test which i have, failing this i may have to dismantle ...

... anything out on the TX pins of both UART'S and when i try to run my test program in flwcode it stops working. Also if i try to compile when i ... have tested it on a board with a flashing LED and set to approximately 1Hz and it looks right Flash_Test_PIC18F47K40.fcfx

... osccon = 0b01110110; osctune = 0b01011111; and flash a led with 500ms delay in flowchart.and got 4 test using oscilloscope. 1st test with osctune = 0b01011111; ... off, if Variable=122,reset to zero. Every test shown 1Hz frequency on scope. I have also define frequecy in ...

... There are loads of references regarding 1Hz flash test Its purpose is to check that osc speed is running at the correct ...

... have a 19.66Mz crystal and you have done the 1Hz flash LED test? Martin

... before starting a new project, to just to do a 1Hz flash test. e.g with LED and current limiting resistor connected to port ...

... before starting a new project, to just to do a 1Hz flash test. e.g Loop while 1 1>C1 delay 500ms 0>C1 delay 500ms For more ...

... control EC motors. Its always best to do the 1Hz flash test priot to creating main flowchat functions as it just tests oscillator ...

Hi Acestu, I would suggest you do a 1Hz LED flash test so you can confirm hardware is running at the correct Speed. E.g ...

... you will have LCD connected to. Then do the 1Hz test. E.g if connected to port B: While 1 PortB = 255 delay ... make sure LEDs that use the same port pins as LCD do flash at 1Hz. If not got Eblock then use a Voltmeter/DMM ...

... A0 Enables LED connected to port B0 to either flash or stay off. Pressing and releasing SW connected ... is very slow. LED will flash at about 1Hz on real hardware (untested as its a bit late. If I get time will test later) ...

... elimate OSC speed issues, you can do the LED flash at 1Hz test. I'm guessing it is a configuration issue since: Cheap PIC board ...

... with the configurations. I have simplified the test program even further so that all I have is ... Led (which is actually the LCD backlight) to flash 10 times at 1Hz and then start the LCD and write the number 1 then loop ...