STM32 share EXTI can not work prope rly, need some fix below
"kontais" <kontais-Dw/[email protected]>
| Newsgroups | gmane.comp.hardware.microcontrollers.ethernut |
|---|---|
| Message-ID | <---.ae------rS1ae$134f3b5b-f11a-4044-af19-fe4bf2cb8bb2@aliyun.com> |
Index: E:/ethernut-code/nut/arch/cm3/dev/stm/stm32_gpioirq.c
===================================================================
--- E:/ethernut-code/nut/arch/cm3/dev/stm/stm32_gpioirq.c (revision 6130)
+++ E:/ethernut-code/nut/arch/cm3/dev/stm/stm32_gpioirq.c (working copy)
@@ -125,7 +125,7 @@
GPIO_SIGNAL *GpioCreateIrqHandler(nutgpio_port_t port, nutgpio_pin_t bit, void (*handler) (void *), void *arg)
{
GPIO_SIGNAL *sig;
- int port_nr = (port & 0x3fff) >> 10;
+ int port_nr = (port-GPIOA_BASE) >> 10;
sig = malloc(sizeof(GPIO_SIGNAL));
if (sig) {
int rc;
@@ -248,18 +248,20 @@
GPIO_SIGNAL *sig_chain;
sig_chain = isrhandler->ir_arg;
while (sig_chain) {
- if(sig_chain->ios_pin != bit) {
- /* Pin is not already mapped */
- if (0 == sig_chain->sig_next) {
- /* we have a free slot*/
- /* Clear any pending interrupts and mask */
- EXTI->PR = (1 << bit);
- EXTI->IMR &= ~(1 << bit);
- sig_chain->sig_next = sig;
- rc = 0;
- break;
- }
+ /* Pin is already mapped */
+ if (sig_chain->ios_pin == bit) {
+ break;
}
+ /* Last one */
+ if (sig_chain->sig_next == NULL) {
+ /* Clear any pending interrupts and mask */
+ EXTI->PR = (1 << bit);
+ EXTI->IMR &= ~(1 << bit);
+ sig_chain->sig_next = sig;
+ rc = 0;
+ break;
+ }
+ sig_chain = sig_chain->sig_next;
}
}
if (0 == rc) {
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