Steve Karg
4576e41ec3
* Refactored ports/xplained to use common DLMSTP module to enable extended frames * Added floating point compares in cases where they don't exist in math library
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/**
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* @file
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* @brief Store and retrieve non-volatile data
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* @author Steve Karg <skarg@users.sourceforge.net>
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* @date 2013
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* @copyright SPDX-License-Identifier: MIT
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include "nvmdata.h"
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#include "bacnet/datalink/dlmstp.h"
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#include "bacnet/basic/object/device.h"
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/**
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* Initializes the non-volatile memory module
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*/
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void nvm_data_init(void)
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{
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uint32_t device_id = 127;
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uint8_t max_master = 127;
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uint8_t mac_address = 127;
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nvm_read(NVM_MAC_ADDRESS, &mac_address, 1);
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if (mac_address == 255) {
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/* uninitialized */
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mac_address = 123;
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}
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dlmstp_set_mac_address(mac_address);
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nvm_read(NVM_MAX_MASTER, &max_master, 1);
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if (max_master > 127) {
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max_master = 127;
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}
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dlmstp_set_max_master(max_master);
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/* Get the device ID from the EEPROM */
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nvm_read(NVM_DEVICE_0, (uint8_t *)&device_id, sizeof(device_id));
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if (device_id < BACNET_MAX_INSTANCE) {
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Device_Set_Object_Instance_Number(device_id);
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} else {
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Device_Set_Object_Instance_Number(mac_address);
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}
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}
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