URL https://opencores.org/ocsvn/neorv32/neorv32/trunk

Subversion Repositories neorv32

[/] [neorv32/] [trunk/] [rtl/] [core/] [neorv32_pwm.vhd] - Diff between revs 62 and 66

Rev 62	Rev 66
Line 114...	Line 114...
`-- Write access ---------------------------------------------------------------------------`	`-- Write access ---------------------------------------------------------------------------`
`-- -------------------------------------------------------------------------------------------`	`-- -------------------------------------------------------------------------------------------`
`wr_access: process(clk_i)`	`wr_access: process(clk_i)`
`begin`	`begin`
`if rising_edge(clk_i) then`	`if rising_edge(clk_i) then`
`ack_o <= acc_en and (rden_i or wren_i);`	`ack_o <= rden or wren;`

`-- write access --`	`-- write access --`
`if (wren = '1') then`	`if (wren = '1') then`
`-- control register --`	`-- control register --`
`if (addr = pwm_ctrl_addr_c) then`	`if (addr = pwm_ctrl_addr_c) then`
Line 185...	Line 185...
`pwm_cnt <= std_ulogic_vector(unsigned(pwm_cnt) + 1);`	`pwm_cnt <= std_ulogic_vector(unsigned(pwm_cnt) + 1);`
`end if;`	`end if;`

`-- channels --`	`-- channels --`
`for i in 0 to NUM_CHANNELS-1 loop`	`for i in 0 to NUM_CHANNELS-1 loop`
`--if (pwm_cnt = pwm_ch(i)) or (pwm_ch(i) = x"00") or (enable = '0') then`
`-- pwm_o(i) <= '0';`
`--elsif (pwm_cnt = x"00") then`
`-- pwm_o(i) <= '1';`
`--end if;`
`if (unsigned(pwm_cnt) >= unsigned(pwm_ch(i))) or (enable = '0') then`	`if (unsigned(pwm_cnt) >= unsigned(pwm_ch(i))) or (enable = '0') then`
`pwm_o(i) <= '0';`	`pwm_o(i) <= '0';`
`else`	`else`
`pwm_o(i) <= '1';`	`pwm_o(i) <= '1';`
`end if;`	`end if;`