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authorGravatar Peter McGoron 2024-01-23 10:26:49 -0500
committerGravatar Peter McGoron 2024-01-23 10:26:49 -0500
commit90b74593e90d9d9439629681c8e38c094693c803 (patch)
tree57460776edd1a5b118461d2ed12fde16a9762206 /spi_master_ss_template.v
parentadd undefine macros (diff)
start cleanup of SPI
Diffstat (limited to 'spi_master_ss_template.v')
-rw-r--r--spi_master_ss_template.v37
1 files changed, 20 insertions, 17 deletions
diff --git a/spi_master_ss_template.v b/spi_master_ss_template.v
index fff9d08..e5624ce 100644
--- a/spi_master_ss_template.v
+++ b/spi_master_ss_template.v
@@ -1,36 +1,39 @@
-/* (c) Peter McGoron 2022 v0.3
+/* (c) Peter McGoron 2022 v0.4
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v.2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
+
/* spi master with integrated ability to wait a certain amount of cycles
* after activating SS.
*/
-module `SPI_MASTER_SS_NAME
+module spi_master_ss
#(
+ parameter SS_WAIT = 1, /* Amount of cycles to wait for SS
+ to enable */
+ parameter SS_WAIT_TIMER_LEN = 2, /* Amount of bits required to
+ store the SS wait time */
+
+ parameter ENABLE_MISO = 1,
+ parameter ENABLE_MOSI = 1,
parameter WID = 24,
parameter WID_LEN = 5,
parameter CYCLE_HALF_WAIT = 1,
parameter TIMER_LEN = 3,
- parameter SS_WAIT = 1,
- parameter SS_WAIT_TIMER_LEN = 2,
-
parameter POLARITY = 0,
parameter PHASE = 0
-)
-(
+) (
input clk,
input rst_L,
-`ifndef SPI_MASTER_NO_READ
+
output [WID-1:0] from_slave,
input miso,
-`endif
-`ifndef SPI_MASTER_NO_WRITE
+
input [WID-1:0] to_slave,
output reg mosi,
-`endif
+
output sck_wire,
output finished,
output ready_to_arm,
@@ -42,7 +45,9 @@ reg ss = 0;
reg arm_master = 0;
assign ss_L = !ss;
-`SPI_MASTER_NAME #(
+spi_master #(
+ .ENABLE_MISO(ENABLE_MISO),
+ .ENABLE_MOSI(ENABLE_MOSI),
.WID(WID),
.WID_LEN(WID_LEN),
.CYCLE_HALF_WAIT(CYCLE_HALF_WAIT),
@@ -52,14 +57,13 @@ assign ss_L = !ss;
) master (
.clk(clk),
.rst_L(rst_L),
-`ifndef SPI_MASTER_NO_READ
+
.from_slave(from_slave),
.miso(miso),
-`endif
-`ifndef SPI_MASTER_NO_WRITE
+
.to_slave(to_slave),
.mosi(mosi),
-`endif
+
.sck_wire(sck_wire),
.finished(finished),
.ready_to_arm(ready_to_arm),
@@ -120,4 +124,3 @@ always @ (posedge clk) begin
end
endmodule
-`undefineall