• SBL (UART flashing) is enabled by default in this firmware. No need to apply extra patches.

• JetHome ZB3CX module for JetHub based on CC2538-CC2592EM reference. Use UART firmware version for it.
• USB stick MODKAM_V3 device information. Use USB firmware version for it.

If you don't want to repair all device after re-flashing stick please follow next steps:

• Stop zigbee2mqtt
• Make backup of the data folder. (you can restore this backup if something will be wrong)
• Flash firmware to stick (remove it if you want to flash with J-Link)
• Start zigbee2mqtt

NOTE: New stick should have fresh NVMEM. You can use next script to erase it: zStackEraseAllNvMem.js

115200 8n1, No flow control
PA0 - RX
PA1 - TX
PB0 - CTS (no used)
PD1 - RTS (no used)

• Make sure that your current firmware has SBL enabled.

• cc2538-prog
• cc2538-bsl (works on Linux, MacOS)
• FLASH-PROGRAMMER-2 (Windows)

UART(SBL) firmware update mode is desribed here.

All 4 LEDS will be turned on for 1-2 sec during boot (Test all LEDs)

• LED_1 - Power LED
• LED_2 - Not used
• LED_3 - Allow join (permit_join: true).
• LED_4 - Application level activity. (traffic in radio sensors, etc)

1. Install 'IAR for ARM' Version 8.50.1;
2. Install Z-Stack 3.0.2;
3. Go to directory Z-Stack 3.0.2 and apply the patch;
4. Build project;

• Fixed work with devices Aqara E1;
• Added GREEN POWER cluster;
• CODE_REVISION_NUMBER changed to 20211222

• FIX #2
• NV flash incremented from 12 pages to 24 pages. (HAL_NV_PAGE_CNT)
• Work with devices which are not support APS encryption (zgApsAllowR19Sec = TRUE)
• Changed FLASH and NV memory boundaries
• Disabled TCLK (requestNewTrustCenterLinkKey = FALSE)
• CODE_REVISION_NUMBER changed to 20201010

• Enabled Serial Bootloader (SBL). Use low logic level on PA7 input to enter SBL
• Added UART mode firmware
• CODE_REVISION_NUMBER changed to 20200729

Based on MODKAM_V3 firmware. Differences from MODKAM_V3:

• Decremented number of direct children from 100 to 80: (NWK_MAX_DEVICE_LIST=80)
• CODE_REVISION_NUMBER changed to 20200427

Original firmware MODKAM_V3

• Added 4 LEDs
• NV_RAM area changed form 6 to 12 pages
• Added frontend CC2592
• UART RTS signal changed from PD3 to PD1
• ZNP (MT_VERSION) oroduct ID changed from 0 to 2
• Added possiblity to receive messages when Group ID is missing in the coordinator
• Messages for 10 and 11 endpoints are forwared to endpoint 1
• Disable children aging
• Broadcast table size changed fron 9 to 12 (MAX_BCAST=12)
• UART buffer size changed form 170 to 1024 bytes
• Handling HAL_UART_RX_FULL, HAL_UART_RX_ABOUT_FULL, HAL_UART_RX_TIMEOUT events
• Output power changed from 19 to 22 dBm
• CODE_REVISION_NUMBER changed to 20200327
• Added new parameters:

-DMODKAMRU_V3
-DINCLUDE_REVISION_INFORMATION
-DMT_SYS_KEY_MANAGEMENT=1
-DTP2_LEGACY_ZC
-DMULTICAST_ENABLED=FALSE

/* Large netrowk optimizations (MTO, Source Routing) */
-DINT_HEAP_LEN=12288
-DZDSECMGR_TC_DEVICE_MAX=200
-DNWK_MAX_DEVICE_LIST=100
-DCONCENTRATOR_ENABLE=TRUE
-DCONCENTRATOR_DISCOVERY_TIME=120
-DMAX_RTG_SRC_ENTRIES=400
-DMAX_NEIGHBOR_ENTRIES=100
-DSRC_RTG_EXPIRY_TIME=10
-DCONCENTRATOR_ROUTE_CACHE=TRUE
-DMTO_RREQ_LIMIT_TIME=5000

-DLINK_DOWN_TRIGGER=6
-DNWK_ROUTE_AGE_LIMIT=12
-DBCAST_DELIVERY_TIME=100
-DMAX_BCAST=12
//-DDEF_NWK_RADIUS=15
//-DDEFAULT_ROUTE_REQUEST_RADIUS=8
-DROUTE_DISCOVERY_TIME=13
//-DZDNWKMGR_MIN_TRANSMISSIONS=0
-DNWK_LINK_STATUS_PERIOD=60

// Maximums for the data buffer queue
#ifdef MODKAMRU_V3
 #define NWK_MAX_DATABUFS_WAITING    180 // Waiting to be sent to MAC
 #define NWK_MAX_DATABUFS_SCHEDULED  150 // Timed messages to be sent
 #define NWK_MAX_DATABUFS_CONFIRMED  150 // Held after MAC confirms
 #define NWK_MAX_DATABUFS_TOTAL      255 // Total number of buffers
#else
 #define NWK_MAX_DATABUFS_WAITING    8   // Waiting to be sent to MAC
 #define NWK_MAX_DATABUFS_SCHEDULED  5   // Timed messages to be sent
 #define NWK_MAX_DATABUFS_CONFIRMED  5   // Held after MAC confirms
 #define NWK_MAX_DATABUFS_TOTAL      12  // Total number of buffers
#endif