Forum Request - How to do instructions for the forum
Genetix
Posts: 1,754
Courtney,
Thank you very much for the How to PM instructions but could you also show how to post code, or anything else that is not intuitive.
Thank you very much for the How to PM instructions but could you also show how to post code, or anything else that is not intuitive.
Comments
Any chance of your not posting with that extra large, bold and blocky font? Its very jarring.
Is this better?
Is this better?
That's OK. Anything else, I have to put on my glasses.
I miss the old Parallax Dark Theme. I could read the small print on a dark background.
I think the current way to post code is using the HTML preformatted tags
Let's see if it works:
<pre>
p, li { white-space: pre-wrap; }
/*
Blink Light.c
Blink light circuit connected to P26.
http://learn.parallax.com/propeller-c-simple-circuits/blink-light
*/
#include "simpletools.h" // Include simpletools
int main() // main function
{
while(1) // Endless loop
{
high(18);
pause(100);
high(17); // Set P17 I/O pin high
pause(100); // Wait 1/10 second
low(17); // Set P17 I/O pin low
pause(100);
low(18);
pause(100); // Wait another 1/10 second
}
}
</pre>
***EDIT***
Yeah, not so much. The forum seems to want to insert some of its own text.
Here's the text without any wrappers cut straight from SimpleIDE:
p, li { white-space: pre-wrap; }
/*
Blink Light.c
Blink light circuit connected to P26.
http://learn.parallax.com/propeller-c-simple-circuits/blink-light
*/
#include "simpletools.h" // Include simpletools
int main() // main function
{
while(1) // Endless loop
{
high(18);
pause(100);
high(17); // Set P26 I/O pin high
pause(100); // Wait 1/10 second
low(17); // Set P26 I/O pin low
pause(100);
low(18);
pause(100); // Wait another 1/10 second
}
}
This is one of there work items - hopefully high on the list so we can share code snippets.
p, li { white-space: pre-wrap; } /* Blink Light.c Blink light circuit connected to P26. http://learn.parallax.com/propeller-c-simple-circuits/blink-light */ #include "simpletools.h" // Include simpletools int main() // main function { while(1) // Endless loop { high(18); pause(100); high(17); // Set P17 I/O pin high pause(100); // Wait 1/10 second low(17); // Set P17 I/O pin low pause(100); low(18); pause(100); // Wait another 1/10 second } }[/code]
int main(int argc, char* argv[] { printf("Hellow world "); }1. I tried using my tablet, but it's editing, selecting, and copying "features" make it almost impossible to work -- it wasn't much easier on the old forum, and
2. I copied the code from your previous post which had already lost all of its formatting.
Here's another try using a desktop computer - a short version of a C-learning program for the Ping.
/* Test Ping.c Test the PING))) sensor before using it to navigate with the ActivityBot. http://learn.parallax.com/activitybot */ #include "simpletools.h" // Include simpletools header #include "ping.h" // Include ping header int distance; // Declare distance variable int main() // main function { while(1) // Repeat indefinitely { distance = ping_cm(8); // Get cm distance from Ping))) print("%c distance = %d%c cm", // Display distance HOME, distance, CLREOL); distance = ping(8); print(" echo time = %d%c us", distance, CLREOL); pause(200); // Wait 1/5 second } }If it works I explain what I did.
OK, it worked.
Here's what I did:
I copied the formatted code I wanted.
I clicked on the <> icon at the right of the editing pane in the editing pane.
I saw a bunch of <br> and other code with my text mixed in.
I moved the cursor to where I wanted to add the program code and pressed enter a couple of times to make some room.
I entered "<" no space "pre" no space ">" a few carriage returns "<" no space "/pre" no space ">"
I repositioned my cursor in an empty line between the pre's I had just entered and pasted the program code.
Tom
'' ****************************************************************************** '' * I2C Demo Propeller program * '' * James Burrows Oct 2007 * '' * Version 2.1 * '' * * '' * Demos: i2cObject * '' * Uses : Mike Green's "basic_i2c_driver" with a couple of extra bits * '' * * '' * demo'ing: * '' * Si570 and EEPROM objects * '' * * '' * Code modified by Richard Newstead, G3CWI, Feb 2012 to add Si570 * '' ****************************************************************************** '' '' this object provides the PUBLIC functions: '' -> Start '' '' this object provides the PRIVATE functions: '' -> Si570_demo - Read the registers '' -> EEPROM_demo - write and read back 10 locations in the EEPROM '' -> i2cScan - scan the bus. Show results. '' '' Revision History: '' -> V2 - re-release '' v2.1 = Slight update to i2cObject code (readLocation was ACKing instead of NAK'ing) '' '' '' this object uses the following sub OBJECTS: '' -> basic_i2c_driver '' '' '' Part information: '' -> Si570 '' http://www.silabs.com/Support%20Documents/TechnicalDocs/si570.pdf '' http://g4oep.atspace.com/si570/si570.htm '' Got ya note: HS_DIV = Bin -4, N1= Bin -1 (see G4OEP speadsheet) '' '' -> 24LC256 (32kb) or 24LC512 (64kb) - see www.microchip.com '' '' 4.7K 3.3V 3.3V '' ??????????? 3.3V 24LC256??? Si570??? '' ? ????????? 3.3V ? ? ? ? '' ? ? ? ? ? ? '' Pin29/SDA ????????????????????????????????????????????????? '' ? ? ? '' Pin28/SCL ???????????????????????????????????????????????? '' '' '' Instructions (brief): '' (1) - setup the propeller - see the Parallax Documentation (www.parallax.com/propeller) '' (2) - Use a 5mhz crystal on propeller X1 and X2 '' (3) - Connect the SDA lines to Propeller Pin28, and SCL lines to Propeller Pin29 '' See diagram above for resistor placements. '' Connect the Si570 and 24LC256 (EEPROM) devices '' - the demo will work if they are not all present! '' '' (4) - OPTIONAL: Update the i2c Address's for the i2c if you are not using their base address's. '' (5) - Connect a terminal to the programming pins and use hypertrm or similar to see the results! '' (6) - Run the app! '' '' '' Support: '' I will support this on the Parallax propeller forum (username Javalin) '' send me a PM when you post in case I dont see it! '' Contact Richard G3CWI for questions on the Si570 part CON _clkmode = xtal1 + pll16x _xinfreq = 5_000_000 _stack = 50 i2cSCL = 28 i2cSDA = 29 EEPROMAddr = %1010_0000 Si570Addr = %1010_1010 'AA ' EEPROM data base address - i.e 32K (assumes a 64kb eeprom installed!!) EEPROM_Base = $8000 ' debug - USE onboard pins pcDebugRX = 31 pcDebugTX = 30 ' serial baud rates pcDebugBaud = 115200 VAR long i2cAddress, i2cSlaveCounter OBJ i2cObject : "basic_i2c_driver" debug : "Debug_PC" pub Start ' start the PC debug object debug.startx(pcDebugRX,pcDebugTX,pcDebugBaud) ' setup i2cobject i2cObject.Initialize(i2cSCL) ' pause 5 seconds repeat 20 debug.putc(".") waitcnt((clkfreq/6)+cnt) debug.putc(13) ' i2c state debug.strln(string("I2C Demo (v2)!")) 'demo the i2c scan i2cScan waitcnt(clkfreq +cnt) repeat ' demo the EEPROM if i2cObject.devicePresent(i2cSCL,eepromAddr) == true debug.strln(string("EEPROM Present")) 'EEPROM_Demo else debug.strln(string("EEPROM Missing")) waitcnt(clkfreq+cnt) ' demo the Si570 Oscillator if i2cObject.devicePresent(i2cSCL,Si570addr) == true debug.strln(string("Si570 Present")) Si570_Demo else debug.strln(string("Si570 Missing")) waitcnt(clkfreq+cnt) PRI EEPROM_Demo | eepromData, eepromLocation, ackbit ' demo the i2c Serial EEPROM (Microchip's 24LC512 (64kb)) debug.strln(string("EEPROM DEMO")) ' ***** EEPROM read/Write example ***** eepromLocation := EEPROM_Base eepromData := 0 repeat 5 ' write long eepromData += 100 i2cObject.WriteLong(i2cSCL, EEPROMAddr, eepromLocation, eepromData) ' read long eepromData :=0 eepromData := i2cObject.ReadLong(i2cSCL, EEPROMAddr, eepromLocation) ' debug debug.str(string("Read Location=")) debug.decx(eepromLocation,5) debug.str(string(", data=")) debug.decx(eepromData,5) debug.putc(13) ' next eepromLocation +=4 ' slowit waitcnt(clkfreq/20 + cnt) ' done debug.strln(string("EEPROM demo done.")) PRI Si570_Demo | Si570Data, Si570Location, ackbit ' demo the Si570 debug.strln(string("Si570 DEMO")) ' ***** Si570 write/read example ***** {Example: TX 144.050, N1=4 HS_DIV=9 RFEQ=45.37643. Note that each Si570 has individual parameters} i2cObject.WriteLocation (i2cSCL, Si570Addr, 137, %00010000) 'freeze DCO i2cObject.WriteLocation (i2cSCL, Si570Addr, 7, $a0) i2cObject.WriteLocation (i2cSCL, Si570Addr, 8, $c2) i2cObject.WriteLocation (i2cSCL, Si570Addr, 9, $d6) i2cObject.WriteLocation (i2cSCL, Si570Addr, 10, $05) i2cObject.WriteLocation (i2cSCL, Si570Addr, 11, $db) i2cObject.WriteLocation (i2cSCL, Si570Addr, 12, $76) i2cObject.WriteLocation (i2cSCL, Si570Addr, 137, %00000000) 'unfreeze DCO i2cObject.WriteLocation (i2cSCL, Si570Addr, 135, %01000000) 'Update freq Si570Location := 7 Si570Data := 0 repeat 12 Si570Data :=0 Si570Data := i2cObject.ReadLocation(i2cSCL, Si570Addr, Si570Location) ' debug debug.str(string("Read Si570 Location=")) debug.decx(Si570Location,3) debug.str(string(", data byte Hex=")) debug.hex(Si570Data,2) debug.putc(13) ' next Si570Location +=1 ' slowit waitcnt(clkfreq/10 + cnt) Si570Location := 135 Si570Data := i2cObject.ReadLocation(i2cSCL, Si570Addr, Si570Location) debug.str(string("Read Si570 Location=")) debug.decx(Si570Location,3) debug.str(string(", data byte Hex=")) debug.hex(Si570Data,2) debug.putc(13) Si570Location := 137 Si570Data := i2cObject.ReadLocation(i2cSCL, Si570Addr, Si570Location) debug.str(string("Read Si570 Location=")) debug.decx(Si570Location,3) debug.str(string(", data byte Hex=")) debug.hex(Si570Data,2) debug.putc(13) ' done debug.strln(string("Si570 demo done.")) Repeat 'Wait here PRI i2cScan | value, ackbit ' Scan the I2C Bus and debug the LCD debug.strln(string("Scanning I2C Bus....")) ' initialize variables i2cSlaveCounter := 0 ' i2c Scan - scans all the address's on the bus ' sends the address byte and listens for the device to ACK (hold the SDA low) repeat i2cAddress from 0 to 127 value := i2cAddress << 1 | 0 ackbit := i2cObject.devicePresent(i2cSCL,value) if ackbit==false 'debug.str(string("NAK")) else ' show the scan debug.str(string("Scan Addr : %")) debug.bin(value,8) debug.str(string(", ACK")) ' the device has set the ACK bit i2cSlaveCounter ++ waitcnt(clkfreq/20+cnt) debug.putc(13) ' slow the scan so we can read it. waitcnt(clkfreq/40 + cnt) ' update the counter debug.str(string("i2cScan found ")) debug.dec(i2cSlaveCounter) debug.strln(string(" devices!"))-Phil
The small fonts are very hard to read on a desktop and the black on white is very straining on the eyes not to mention the fact that my laptop lowers the brightness when I am running off the battery. A bigger font is a lot easier to read but that Arial Black font is somewhat jarring especially considering that's the default size.
To the rest of you,
Telling me how to add code is fine and dandy but what about all the new people who come here?
That's why I asked for a How to sticky.
Is there anything else other than adding code that would be good to have a sticky for?
For now, use the suggestions above or simply attach your code as a file.
REGARDS
BERNARD TENDENGU