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Align FC_EVENT_POS of soc_event_generator to position in s_events vector #87

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This pull request is in reference to pulp-platform/pulpissimo#353: In line 217 the fc_hwpe_events are connected to indicies 140+141.

Thus, the FC_EVENT_POS for the event_generator should be aligned to this. Position 7 is part of the UART in the UDMA subsystem as far as I can tell.

bluewww added a commit that referenced this pull request May 5, 2023
After !77

This PR replaces legacy `RI5CY` with `CV32E40P` in either the SoC (FC controller) and the cluster (8 core instances)

**HW (RTL)**:

- [x] Replace cv32e40p with OBI adapter into SoC
- [x] Add FPU wrapper into SoC using APU connection. FPU is now instantiated in `fc_subsystem`
- [x] Replace cv32e40p with OBI adapter into Cluster
- [x] Add `pulp_clock_gating` tech cell for ASIC, disable clock gating for FPGA (as in RI5CY) **[TODO: do it properly without using `ifdef`]** (#85)
- [x] Add one [performance counters test](https://github.com/pulp-platform/regression_tests/tree/cv32perf_counters/perf_counters) in assembly for cv32 to be executed with pulp-runtime

**SW**:

Main SW changes concerns:

1. Different mapping of the HW loops (`Xpulp` extensions)
2. Different structure and mapping of the performance counters
3. Enable clint timer irq (Freertos and RTL)

- [x] Change `PULP RISCV GCC toolchain` version used in the CI with cv32e40p target with: `/usr/pack/riscv-1.0-kgf/pulp-gcc-2.2.0`
- [x] Update `pulp-runtime` with cv32e40p target with: `v0.0.9`
- [x] Update `FreeRTOS` version with cv32e40p target with: `570b2c1c`

**MISC**

- [x] Update README
- [x] Update CHANGELOG

- The testset has been previously overhauled in !63 and !65. In particular !63 removed some tests that used the legacy pulp-sdk and RI5CY and were not a fit anymore with cv32

Within this project boundary, there exits three issues tracked in #87, #86 and #85 that will be addressed in separate MRs

Fixes #59 #60 #84
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