[usbdev] Fix 1us timing reference
Correct off-by-one error in microsecond timer
Fix minor typographical errors in comments
Signed-off-by: Adrian Lees <a.lees@lowrisc.org>
diff --git a/hw/ip/usbdev/rtl/usb_consts_pkg.sv b/hw/ip/usbdev/rtl/usb_consts_pkg.sv
index 26e178a..fcb9313 100644
--- a/hw/ip/usbdev/rtl/usb_consts_pkg.sv
+++ b/hw/ip/usbdev/rtl/usb_consts_pkg.sv
@@ -49,7 +49,7 @@
SetupSynchFrame = 8'd12
} usb_setup_request_e;
- // USB Desctiptor Types (USB2.0 Table 9-5)
+ // USB Descriptor Types (USB2.0 Table 9-5)
typedef enum logic [7:0] {
DscrTypeDevice = 8'd1,
DscrTypeConfiguration = 8'd2,
diff --git a/hw/ip/usbdev/rtl/usb_fs_rx.sv b/hw/ip/usbdev/rtl/usb_fs_rx.sv
index bbd9b0c..35b095e 100644
--- a/hw/ip/usbdev/rtl/usb_fs_rx.sv
+++ b/hw/ip/usbdev/rtl/usb_fs_rx.sv
@@ -446,7 +446,7 @@
// save and check pid //
////////////////////////
- // shift in the entire 8-bit pid with an additional 9th bit used as a sentinal.
+ // shift in the entire 8-bit pid with an additional 9th bit used as a sentinel.
logic [8:0] full_pid_q, full_pid_d;
logic pid_valid, pid_complete;
diff --git a/hw/ip/usbdev/rtl/usb_fs_tx.sv b/hw/ip/usbdev/rtl/usb_fs_tx.sv
index 439ecd8..fa28ea1 100644
--- a/hw/ip/usbdev/rtl/usb_fs_tx.sv
+++ b/hw/ip/usbdev/rtl/usb_fs_tx.sv
@@ -238,7 +238,7 @@
// Logic closely coupled to the FSM
if (pkt_start_i) begin
- // We need to have a inter-packed delay between
+ // We need to have an inter-packet delay between
// 2 and 6.5 bit times (see USB 2.0 spec / 7.1.18.1)
// The latency in the rest of the system is approximately (measured)
// 3.68 bit-times, so we only introduce 1 bit-time here
diff --git a/hw/ip/usbdev/rtl/usbdev.sv b/hw/ip/usbdev/rtl/usbdev.sv
index b676d3d..a4a71dc 100644
--- a/hw/ip/usbdev/rtl/usbdev.sv
+++ b/hw/ip/usbdev/rtl/usbdev.sv
@@ -187,7 +187,7 @@
logic [5:0] ns_cnt;
logic us_tick;
- assign us_tick = (ns_cnt == 6'd48);
+ assign us_tick = (ns_cnt == 6'd47);
always_ff @(posedge clk_i or negedge rst_n) begin
if (!rst_n) begin
ns_cnt <= '0;
@@ -402,7 +402,7 @@
clear_rdybit[out_endpoint] = 1'b1;
update_pend[out_endpoint] = 1'b1;
end else if (in_ep_xact_end & in_endpoint_val) begin
- // Clear when a IN transmission was sucessful
+ // Clear when an IN transmission was successful
clear_rdybit[in_endpoint] = 1'b1;
end
end
@@ -699,7 +699,7 @@
reg2hw.alert_test.qe
};
- // TDODO: stub alerts
+ // TODO: stub alerts
localparam logic [NumAlerts-1:0] AlertIsFatal = {1'b1};
for (genvar i = 0; i < NumAlerts; i++) begin : gen_alert_tx
prim_alert_sender #(
diff --git a/hw/ip/usbdev/rtl/usbdev_linkstate.sv b/hw/ip/usbdev/rtl/usbdev_linkstate.sv
index deb3c79..58b3616 100644
--- a/hw/ip/usbdev/rtl/usbdev_linkstate.sv
+++ b/hw/ip/usbdev/rtl/usbdev_linkstate.sv
@@ -238,7 +238,7 @@
/////////////////////
// Reset detection //
/////////////////////
- // Here we clean up the SE0 signal and generate a signle ev_reset at
+ // Here we clean up the SE0 signal and generate a single ev_reset at
// the end of a valid reset
always_comb begin : proc_rst_fsm
