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Guest
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| printf with arrays |
 Posted: Sat Feb 28, 2009 7:27 pm |
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I'm trying to use printf to print a series of array data to my LCD but it won't compile. I keep getting this error: "Printf variable count (%) does not match actual count" My compiler is PCM 4.086.
Here is my code:
| Code: |
// parameters
int16 pv[5]; // current temperature 0-500
void main()
{
lcd_init();
pv[0]=200;
pv[1]=202;
pv[2]=204;
pv[3]=206;
pv[4]=208;
printf(lcd_putc, "\f%s %s %s %s %s", "TNK", "HS1", "GN1", "HS2", "GN2");
printf(lcd_putc, "\n%u %u %u %u %u", pv[0], pv[1], pv[2], pv[3], pv[4]);
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I have also tried this with the same result:
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printf(lcd_putc, "\n%u %u %u %u %u", *(pv), *(pv+1), *(pv+2), *(pv+3), *(pv+4));
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Any tips on how to do this? |
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future_
Guest
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| Posted: Sat Feb 28, 2009 8:01 pm |
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| What I can see is that you are trying to print longs with %u, you should use %Lu. |
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Guest
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| Posted: Sat Feb 28, 2009 8:40 pm |
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That fixed it. The compiler must have been trying to tell me in a roundabout way that I had the wrong number of bytes.
I stared and stared and couldn't see my mistake. I'm not used to 8 bit integers and 16 bit longs yet.
Many Thanks... |
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