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util_pmod_adc: Reset line changed to active low reset.

main
Istvan Csomortani 2015-09-30 12:33:46 +03:00
parent 5f12c8c7d4
commit 81a1c21553
3 changed files with 8 additions and 17 deletions
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13
library/util_pmod_adc/util_pmod_adc.v
View File

@ -63,12 +63,11 @@ module util_pmod_adc (
// clock and reset signals
clk,
reset,
resetn,
// dma interface
adc_data,
adc_valid,
adc_enable,
adc_dbg,
// adc interface (clk, data, cs and conversion start)
@ -108,13 +107,12 @@ module util_pmod_adc (
// clock and reset signals
input clk; // system clock (100 MHz)
input reset; // active high reset signal
input resetn; // active low reset signal
// dma interface
output [15:0] adc_data;
output adc_valid;
output adc_enable;
output [24:0] adc_dbg;
// adc interface
@ -150,12 +148,11 @@ module util_pmod_adc (
// Assign/Always Blocks
assign adc_sclk = adc_spi_clk & adc_clk_en;
assign adc_enable = 1'b1;
// spi clock generation
always @(posedge clk) begin
adc_clk_cnt <= adc_clk_cnt + 1;
if (adc_clk_cnt == ((ADC_CLK_DIVIDE/2)-1)) begin
if (adc_clk_cnt == ((ADC_CLK_DIVIDE/2)-1)) begin
adc_clk_cnt <= 0;
adc_spi_clk <= ~adc_spi_clk;
end
@ -165,7 +162,7 @@ module util_pmod_adc (
always @(posedge clk)
begin
if(reset == 1'b1) begin
if(resetn == 1'b0) begin
adc_tconvst_cnt <= ADC_CONVST_CNT;
adc_tconvert_cnt <= ADC_CONVERT_CNT;
adc_tquiet_cnt <= ADC_TQUITE_CNT;
@ -215,7 +212,7 @@ module util_pmod_adc (
// update the ADC current state and the control signals
always @(posedge clk) begin
if(reset == 1'b1) begin
if(resetn == 1'b0) begin
adc_state <= ADC_SW_RESET;
adc_dbg <= 1'b0;
end

10
library/util_pmod_adc/util_pmod_adc_ip.tcl
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@ -5,8 +5,8 @@ source $ad_hdl_dir/library/scripts/adi_ip.tcl
adi_ip_create util_pmod_adc
adi_ip_files util_pmod_adc [list \
"util_pmod_adc_constr.xdc" \
"util_pmod_adc.v"
"util_pmod_adc.v" \
"util_pmod_adc_constr.xdc"
]
adi_ip_properties_lite util_pmod_adc
@ -14,11 +14,5 @@ adi_ip_properties_lite util_pmod_adc
adi_ip_constraints util_pmod_adc [list \
"util_pmod_adc_constr.xdc" ]
# set reset polarity to high
set reset_inf [ipx::get_bus_interfaces "signal_reset" -of_objects [ipx::current_core]]
set reset_polarity [ipx::get_bus_parameters "POLARITY" -of_objects $reset_inf]
set_property value "ACTIVE_HIGH" $reset_polarity
ipx::save_core [ipx::current_core]

2
projects/cftl_cip/common/cftl_cip_bd.tcl
View File

@ -37,7 +37,7 @@ ad_connect sys_cpu_clk pmod_spi_dma/fifo_wr_clk
ad_connect sys_cpu_clk pmod_spi_core/clk
ad_connect sys_cpu_clk pmod_gpio_core/ref_clk
ad_connect pmod_spi_core/reset sys_rstgen/peripheral_reset
ad_connect pmod_spi_core/resetn sys_rstgen/peripheral_aresetn
ad_connect pmod_spi_core/adc_data pmod_spi_dma/fifo_wr_din
ad_connect pmod_spi_core/adc_valid pmod_spi_dma/fifo_wr_en