Download DRM004/D: Digitally Addressable Lighting Interface
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DALI Slave Unit Upgrading the Software The interrupt vector is cleared when other parts of the FLASH memory are erased. Since the slave unit updates the contents of the FLASH memory during execution it is necessary to protect the interrupt vector area. After the code is replaced the memory position FF7E (FLASH Block Protect Register) has to be set to FE. Trimming of the internal clock has to be done as described in 3.6 Upgrading the Software. However, the cable should be connected between JP1 on the DALI slave unit (see Appendix D. DALI Slave Unit Schematic and Layout) and JP5 on the DALI master unit (see Appendix D. DALI Slave Unit Schematic and Layout). Digitally Addressable Lighting Interface (DALI) Unit MOTOROLA DALI Slave Unit DRM004 — Rev. 3.0 61