/*----------------------------------------------------- /* SPU HLSW V3.2 - WHAT'S NEW !! /* /* Project: HSO/PACS, SPU HLSW /* Originator: Ahmed Nabil Belbachir /* Contact: spuhlsw@prip.tuwien.ac.at /* User Manual issue: 3.2 /* Date: 08-05-2003 /*----------------------------------------------------- SPU HLSW 3.2 is positioned as an upgrade of SPU HLSW 3.1, containing the following new features: - Add the possibility to start the Link to DEC/MEC as Master or Slave via Command - HK time interval is 1.5 seconds instead of 1.9s - Bug in Least Square Fit corrected - Some HK parameters are re-arranged These will be explained in the specific sections that follow. The SPU HLSW Development Team. Add the possibility to start the Link to DEC/MEC as Master or Slave via Command ------------------------------------------------------------------------------- The HLSW does not start autonomously the connection to DEC/MEC. This connection is done via DPU command. As an Advandage, the Link could be started to DEC/MEC as Master or as Slave depending on the appropriate DEC/MEC-SPU link startup protocol. HLSW version 3.2 has still the SMCS chip reset whenever connection to DPU or DEC/MEC is lost. Auto-SMCS chip reset is performed every 5 seconds whenever DPU-SPU connection is not established. However, HLSW starts the Link to DEC/MEC without timeout constraints till the the connection is established or a warm reset command is received from DPU to force an SMCS chip reset. HK time interval is 1.5 seconds instead of 1.9s ------------------------------------------------ The HK time interval between SPU and DPU is 1.5 seconds. This gives margin (0.5 sec) to DPU, to receive SPU HK packet before DPU produces its own HK packet at 2 seconds interval. Bug in Least Square Fit corrected ---------------------------------- Floating point division between 2 numbers produces very often truncation error where the least significant bit may be corrupted. In this version the rounding error is used instead of the truncation error, which improves the precision to 1/2 LSB. Some HK parameters are re-arranged ------------------------------------ The CPU Workload is included in the HK packet of the SPU instead of the Ramp/average corruption parameters. For this purpose, some HK parameters are re-arranged. (See also DPU-SPU HLSW ICD version 4.2) /* --- EOF ---