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Updated bdk port for version 2, along with test.

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This commit is contained in:
skarg
2009-07-14 15:47:58 +00:00
parent 958922a304
commit 0293a2e6a2
11 changed files with 202 additions and 58 deletions
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bacnet-stack/ports/bdk-atxx4-mstp/input.c
+66 -12
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@@ -25,10 +25,46 @@
#include <stdint.h>
#include <stdbool.h>
#include "hardware.h"
#include "timer.h"
static uint8_t Address_Switch;
static uint8_t Buttons;
#define BDK_V1_HACK 0
#if BDK_V1_HACK
/* version 1 BDK workaournd for floating inputs */
static void input_switch_workaround(void)
{
/* configure the port pins for the switch - as outputs */
BIT_SET(DDRA, DDA0);
BIT_SET(DDRA, DDA1);
BIT_SET(DDRA, DDA2);
BIT_SET(DDRA, DDA3);
BIT_SET(DDRA, DDA4);
BIT_SET(DDRA, DDA5);
BIT_SET(DDRA, DDA6);
/* turn off the outputs */
BIT_CLEAR(PORTA, PA0);
BIT_CLEAR(PORTA, PA1);
BIT_CLEAR(PORTA, PA2);
BIT_CLEAR(PORTA, PA3);
BIT_CLEAR(PORTA, PA4);
BIT_CLEAR(PORTA, PA5);
BIT_CLEAR(PORTA, PA6);
/* configure the port pins for the switch - as inputs */
BIT_CLEAR(DDRA, DDA0);
BIT_CLEAR(DDRA, DDA1);
BIT_CLEAR(DDRA, DDA2);
BIT_CLEAR(DDRA, DDA3);
BIT_CLEAR(DDRA, DDA4);
BIT_CLEAR(DDRA, DDA5);
BIT_CLEAR(DDRA, DDA6);
return;
}
#endif
/* debounce the inputs */
void input_task(
void)
@@ -37,23 +73,32 @@ void input_task(
static uint8_t old_address = 0;
static uint8_t old_buttons = 0;
value = BITMASK_CHECK(PINA, 0x7F);
if (value != old_address) {
old_address = value;
} else {
if (old_address != Address_Switch) {
/* only check the inputs every debounce time */
if (timer_elapsed_milliseconds(TIMER_DEBOUNCE,30)) {
timer_reset(TIMER_DEBOUNCE);
/* pins used are PA6, PA5, PA4, PA3, PA2, PA1, PA0 */
#if BDK_V1_HACK
/* version 1 BDK - workaround */
value = (PINA&0x7F);
#else
/* version 2 BDK - has inverted inputs */
value = ~PINA;
value &= 0x7F;
#endif
if (value == old_address) {
/* stable value */
Address_Switch = old_address;
}
}
/* pins used are PB4, PB3, PB2, PB1, PB0 */
value = BITMASK_CHECK(PINB, 0x1F);
if (value != old_buttons) {
old_buttons = value;
} else {
if (old_buttons != Buttons) {
old_address = value;
/* pins used are PB4, PB3, PB2, PB1, PB0 */
value = BITMASK_CHECK(PINB, 0x1F);
if (value == old_buttons) {
Buttons = old_buttons;
}
}
#if BDK_V1_HACK
input_switch_workaround();
#endif
}
uint8_t input_address(
@@ -102,9 +147,18 @@ void input_init(
BIT_CLEAR(DDRA, DDA4);
BIT_CLEAR(DDRA, DDA5);
BIT_CLEAR(DDRA, DDA6);
/* activate the internal pull up resistors */
BIT_SET(PORTA, PA0);
BIT_SET(PORTA, PA1);
BIT_SET(PORTA, PA2);
BIT_SET(PORTA, PA3);
BIT_SET(PORTA, PA4);
BIT_SET(PORTA, PA5);
BIT_SET(PORTA, PA6);
/* configure the port pins for binary inputs */
BIT_CLEAR(DDRB, DDB1);
BIT_CLEAR(DDRB, DDB2);
BIT_CLEAR(DDRB, DDB3);
BIT_CLEAR(DDRB, DDB4);
timer_reset(TIMER_DEBOUNCE);
}