Hey, I am useing some examples from Keil and I am working with the LPC1768. I am trying to put the controller into deepsleep or power down ect. pp. My problem is, that the controller does not wake up from deep sleep and power down mode. In the Attachment you can find my Code, it would be great if you can help me. thanks =)
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so here in an easier way, but the problem is the same the µC does not wakeup from deepsleep, powerdown or deep power down.
1 | #include "lpc17xx.h" |
2 | #include "type.h" |
3 | #include "extint.h" |
4 | |
5 | |
6 | void main(void) |
7 | {
|
8 | /***********PINs einstellen**********/
|
9 | |
10 | /*************LEDs******************/
|
11 | |
12 | LPC_GPIO2 -> FIODIR |= 0xFF; // P2[0..7] Ausgänge |
13 | LPC_GPIO2 -> FIOCLR |= 0xFF; // alle Pins ausschalten |
14 | |
15 | /************Taster****************/
|
16 | |
17 | LPC_GPIO3 -> FIODIR &= (1<<25); // P3[25] Eingang |
18 | |
19 | /************Interrupt*************/
|
20 | |
21 | LPC_PINCON->PINSEL4 &= ~(0x03<<20); // Reset des Pins |
22 | LPC_PINCON->PINSEL4 |= (0x01<<20); // Config P2.10 = EINT0 |
23 | LPC_GPIOINT->IO2IntEnF = 0x200; // Port2.10 is falling edge. |
24 | LPC_SC->EXTMODE = EINT0_EDGE; // INT0 edge trigger |
25 | LPC_SC->EXTPOLAR = 0; // INT0 is falling edge by default |
26 | NVIC_EnableIRQ(EINT0_IRQn); // Enable IRQ for EINT0 |
27 | |
28 | while(1) |
29 | {
|
30 | if (!(LPC_GPIO3 -> FIOPIN & (1<<25))) |
31 | {
|
32 | LPC_GPIO2 -> FIOPIN = 0xFF; |
33 | SCB -> SCR = 0x04; |
34 | __WFI(); |
35 | }
|
36 | |
37 | }
|
38 | |
39 | }
|
40 | |
41 | void EINT0_IRQHandler (void) |
42 | {
|
43 | LPC_SC->EXTINT = EINT0; //clear interrupt |
44 | LPC_GPIO2 -> FIOCLR = 0xFF; |
45 | }
|
>LPC_GPIO3 -> FIODIR &= (1<<25); // P3[25] Eingang Reset value of this register is 0x0. Your code doesn't change anything in this case, but take care if the value of FIODIR differs from 0x0. You've probably forgotten the '~'. >LPC_PINCON->PINSEL4 &= ~(0x03<<20); // Reset des Pins Unneccessary, because the reset value of PINSEL4[21:20] is 00. And this value is also overwritten with >LPC_PINCON->PINSEL4 |= (0x01<<20); // Config P2.10 = EINT0 but that's not a problem; you can make it sure or obvious by this way. >LPC_GPIOINT->IO2IntEnF = 0x200; // Port2.10 is falling edge. 0x200 codes a falling edge interrupt enable for P2.9, not for P2.10. Take care of the bitposition when bitshifting or when making an absolut assignment. This seems to be the problem and my "analysis" stops at this line of code.
P.S.: When you change your language to German your name is Jannik? Strange ...
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