Matthias
373a8c32b2
git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@55 9fe90eed-be63-e94b-8204-d34ff4c2ff93
123 lines
4.8 KiB
C
123 lines
4.8 KiB
C
/* ---------------------------------------------------------------------------
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* relay.c (c) 2008 Micro-key bv
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* ---------------------------------------------------------------------------
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* Micro-key bv
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* Industrieweg 28, 9804 TG Noordhorn
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* Postbus 92, 9800 AB Zuidhorn
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* The Netherlands
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* Tel: +31 594 503020
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* Fax: +31 594 505825
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* Email: support@microkey.nl
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* Web: www.microkey.nl
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* ---------------------------------------------------------------------------
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* Description:
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* ---------------------------------------------------------------------------
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* Version(s): 0.1, Nov 10, 2008, MMi
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* Creation.
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* System include files
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* ---------------------------------------------------------------------------
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*/
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/* Hardware Includes */
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#include "LPC23xx.h"
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#include "types.h"
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/* FreeRTOS includes */
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#include "FreeRTOS.h"
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#include "Task.h"
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#include "queue.h"
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/* ---------------------------------------------------------------------------
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* Application include files
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* ---------------------------------------------------------------------------
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*/
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#include "relay.h"
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#include "dio.h"
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#include "ElecStatusCache.h"
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//#include "dioISR.h"
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//#include "armVIC.h"
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/* ---------------------------------------------------------------------------
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* Local constant and macro definitions
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* ---------------------------------------------------------------------------
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*/
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#define PORT0_BASE_ADDR (FIO_BASE_ADDR) /* Fast IO Base Address */
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#define PORT1_BASE_ADDR (FIO_BASE_ADDR + 0x20) /* Offset for Port2 */
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#define DIR_OFFSET (0x00) /* Offset of 32Bit DID register */
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#define MASK_OFFSET (0x10) /* Offset of 32bit MASK register*/
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#define PIN_OFFSET (0x14) /* Offset of 32Bit PIN register */
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#define SET_OFFSET (0x18) /* Offset of 32Bit SET register */
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#define CLR_OFFSET (0x1C) /* Offset of 32Bit CLR register */
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#define RLY_CHANNELS 6
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/* ---------------------------------------------------------------------------
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* Global variable definitions
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* Local variable definitions
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* ---------------------------------------------------------------------------
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*/
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t_input rly_inputPins[RLY_CHANNELS] =
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{
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{ PORT1_BASE_ADDR, BIT(26), NULL }, /* Relay Input 0 */
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{ PORT1_BASE_ADDR, BIT(27), NULL }, /* Relay Input 1 */
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{ PORT1_BASE_ADDR, BIT(28), NULL }, /* Relay Input 2 */
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{ PORT1_BASE_ADDR, BIT(29), NULL }, /* Relay Input 3 */
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{ PORT1_BASE_ADDR, BIT(30), NULL }, /* Relay Input 4 */
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{ PORT1_BASE_ADDR, BIT(31), NULL }, /* Relay Input 5 */
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};
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/* ---------------------------------------------------------------------------
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* Local function definitions
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* ---------------------------------------------------------------------------
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*/
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void rlyInit(void)
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{
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UINT8 loopcnt;
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volatile UINT32 *gpioRegister;
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SCS |= (1UL<<0); /* GPIOM in SCS to fast IO */
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/* Set registers for all Inputs in right Mode */
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for (loopcnt=0; loopcnt < RLY_CHANNELS; loopcnt++)
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{
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/* Clear MASK register of corresponding Input */
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gpioRegister = (UINT32 *)(rly_inputPins[loopcnt].portBaseAddr + MASK_OFFSET);
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*gpioRegister &= ~(rly_inputPins[loopcnt].pinMask);
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/* Set corresponding channel to direction INPUT */
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gpioRegister = (UINT32 *)(rly_inputPins[loopcnt].portBaseAddr + DIR_OFFSET);
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*gpioRegister &= ~(rly_inputPins[loopcnt].pinMask);
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}
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}
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BOOLEAN rlyRead(UINT8 device, UINT8 channel)
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{
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BOOLEAN Result;
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volatile UINT32 *gpioRegister;
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/* Set pointer to corresponding channel register */
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gpioRegister = (UINT32 *)(rly_inputPins[channel].portBaseAddr + PIN_OFFSET);
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/* Receive Result from Register (Inputs are LOW-active) */
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if (*gpioRegister & rly_inputPins[channel].pinMask)
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{
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/* Received a HIGH state, so INPUT is LOW or FALSE */
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Result = FALSE;
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}
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else
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{
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/* Received a LOW state, so INPUT is HIGH or TRUE */
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Result = TRUE;
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}
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return Result;
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}
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