STM32L-Discovery error message?

Asked Mar 18 '15 at 13:38

Active Mar 18 '15 at 14:09

Viewed 67 times

I'm trying to program a stm32l-discovery board and have come across this error that keeps appearing when I try to build my project.

error: #29: expected an expression
       for (int i = 0; i <999; i++){

I'm using Keil uVision 4.

Source:

while (1) {
   ////fade up
   int i = 0; 
   for (int i = 0; i <999; i++) { 
      TIM_SetCompare2(TIM2,i);
      ////Pulse width is set with this function 
      delay(100);
      //// the '2' relates to the channel in use 
   }
}

Anyone know what this means?

edited Mar 18 '15 at 13:57

uraimo

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asked Mar 18 '15 at 13:38

Ronan Smith

It's better if you add that section of your code to your question, starting a few lines *before* that for. – uraimo Mar 18 '15 at 13:44
while (1) { //fade up int i = 0; for (int i = 0; i <999; i++) { TIM_SetCompare2(TIM2,i); //Pulse width is set with this function delay(100); // the '2' relates to the channel in use } – Ronan Smith Mar 18 '15 at 13:50
Is the code i added to your question the same you are using? – uraimo Mar 18 '15 at 13:57
ye its the same as that! – Ronan Smith Mar 18 '15 at 13:58
any idea what I'm doing wrong? – Ronan Smith Mar 18 '15 at 14:00
1

Ok, the first issue is that you don't need to declare int i outside the for, remove that line. – uraimo Mar 18 '15 at 14:00
ok but im still getting the same error message. – Ronan Smith Mar 18 '15 at 14:04
You get that error when your syntax is wrong, but the code above is valid c99 code... – uraimo Mar 18 '15 at 14:08
@RonanSmith: You might not be using c99. try: `int i = 0; for (i = 0; i < 999; i++) { ... }` – rost0031 Jun 03 '15 at 19:27

STM32L-Discovery error message?

0 Answers0