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Fix UART receiver #891

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merged 3 commits into from
May 2, 2024
Merged

Fix UART receiver #891

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bae3a90
Fix UART receiver
Unike267 May 2, 2024
01a1410
[rtl] update version ID
stnolting May 2, 2024
3c7c62a
[changelog] add v1.9.8.10
stnolting May 2, 2024
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -29,6 +29,7 @@ mimpid = 0x01040312 -> Version 01.04.03.12 -> v1.4.3.12

| Date | Version | Comment | Ticket |
|:----:|:-------:|:--------|:------:|
| 02.05.2024 | 1.9.8.10 | :bug: fix UART receiver bug (introduced in v1.9.8.7) | [#891](https://github.com/stnolting/neorv32/pull/891) |
| 01.05.2024 | 1.9.8.9 | minor rtl cleanups (cleanup boolean expressions) | [#889](https://github.com/stnolting/neorv32/pull/889) |
| 27.04.2024 | 1.9.8.8 | fix delayed halt when single-stepping into an exception | [#887](https://github.com/stnolting/neorv32/pull/887) |
| 24.04.2024 | 1.9.8.7 | minor RTL fixes | [#883](https://github.com/stnolting/neorv32/pull/883) |
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2 changes: 1 addition & 1 deletion rtl/core/neorv32_package.vhd
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Expand Up @@ -29,7 +29,7 @@ package neorv32_package is

-- Architecture Constants -----------------------------------------------------------------
-- -------------------------------------------------------------------------------------------
constant hw_version_c : std_ulogic_vector(31 downto 0) := x"01090809"; -- hardware version
constant hw_version_c : std_ulogic_vector(31 downto 0) := x"01090810"; -- hardware version
constant archid_c : natural := 19; -- official RISC-V architecture ID
constant XLEN : natural := 32; -- native data path width

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2 changes: 1 addition & 1 deletion rtl/core/neorv32_uart.vhd
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Expand Up @@ -286,7 +286,7 @@ begin
);

rx_fifo.clear <= '1' when (ctrl.enable = '0') or (ctrl.sim_mode = '1') else '0';
rx_fifo.wdata <= rx_engine.sreg(8 downto 1);
rx_fifo.wdata <= rx_engine.sreg(7 downto 0);
rx_fifo.we <= rx_engine.done;
rx_fifo.re <= '1' when (bus_req_i.stb = '1') and (bus_req_i.rw = '0') and (bus_req_i.addr(2) = '1') else '0';

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