PRJ4.BLDC.md

+# Project4. BLDC motor controller based on RISC-V
+
+## Design objective: 
+
+Design a BLDC(Brushless DC) motor/PMSM(Permanent Magnet Synchonous Motor) controller module for RISC-V, mounted on the ICB bus of Hummingbird E203.
+
+## Basic technical requirements:
+
+- 1. Design a timer of 16bit counter, with 6 registers for Output Compare, generating 6 signals for driving BLDC/PMSM. These 6 signals forms 3 pairs(U,V,W phase) with 2 complementery signals for each pair;
+- 2. Implement dead zone configuration for each phase. That means the gap between two signals can be changed by software.
+- 3. Implement periodically OC data updating. To form a 3-phase sine PWM output, you need to periodically update the value of OC registers. You can achieve this by software (timer interrupt) or hardware (special design for the timer).
+- 4. Support emergency stop (BREAK). When BREAK asserted, the motor should stop running ASAP.
+
+
+## Extended requirements (bonus points):
+
+- 1. Automatically inject OC data from a sine table with hardware;
+- 2. Implement calculation module for adjust the driving strength(Driving power).
+- 3. Implement speed control (with adjusting frequecy of timer/ feed rate of sine table etc.).
+
+**NOTE: Extended tasks must be achieved on FPGA board and can drive a real BLDC motor with external 3-phase drivers(power stage of 12V) **
+
+
+## Other requirements
+
+The content of submission should include:
+
+- Project report:
+  - description of interfaces
+  - detailed implementation of core modules
+  - simulation waveforms
+  - explanations of key modules
+  - testing methods and processes
+  - references
+
+If you have done extension task3(linux terminal simulation), please describe the detailed principles.
+
+
+## Scoring criteria
+
+Total scores:100 + 20
+
+| Item | Seq | Requirements | Score | remark |
+| -- | -- | -- | -- | -- |
+| Basic Requirements | 1  | 3-phase complementery PWM signal generation| 50 |  |
+| | 2  | dead zone control | 5 | |
+| | 3  | Periodically PWM data updating| 10 | |
+| | 4  | BREAK function| 5 | |
+| | 
+| Extended Requirements| 5  | Automatic data injection | 10 | |
+| | 6  | Driving strenghth control | 5 | |
+| | 7  | Speed control | 5 | |
+| |
+| documentary | 7  | The content of report is complete | 10 | |
+| | 8  | Detailed test plan, data is complete | 10 | |
+| | 9  | code is complete, with sufficient explain | 10 | |
+
+**Before using a real motor power driver, basic requirements 2 must be firstly achieved and verified, or will cause severe damage (burning or blowing power MOSFET and other circuits.)**
+
+## Reference
+
+TBD
+