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-rw-r--r--src/crossbar.cir83
-rw-r--r--src/crossbar__goal.cir57
-rw-r--r--src/crossbar_generator.c184
-rw-r--r--src/crossbar_generator.h38
-rwxr-xr-xsrc/generate_crossbar_testbin0 -> 16240 bytes
-rw-r--r--src/generate_crossbar_test.c32
6 files changed, 356 insertions, 38 deletions
diff --git a/src/crossbar.cir b/src/crossbar.cir
index 5668221..a9a30a4 100644
--- a/src/crossbar.cir
+++ b/src/crossbar.cir
@@ -1,57 +1,64 @@
-*==========================================================
-* 2x2 HP Memristor Crossbar
-*==========================================================
+* Generating a crossbar with:
+*Rows: 5
+*Columns: 5
.include "hp_memristor.cir"
-******************************************************
-* Input Voltages (Rows)
-******************************************************
-
-.param VIN0=0.25
-.param VIN1=0.75
-
+* Input Voltages
+.param VIN0=1.2
+.param VIN1=3.2999999999999998
+.param VIN2=5
+.param VIN3=4.2999999999999998
+.param VIN4=2.1000000000000001
VROW0 row0 0 DC {VIN0}
VROW1 row1 0 DC {VIN1}
+VROW2 row2 0 DC {VIN2}
+VROW3 row3 0 DC {VIN3}
+VROW4 row4 0 DC {VIN4}
-******************************************************
* Memristor Array
-******************************************************
-
-X00 row0 col0 memristor PARAMS: Rinit=1k
-X01 row0 col1 memristor PARAMS: Rinit=100k
-X02 row0 col2 memristor PARAMS: Rinit=50k
-X03 row0 col3 memristor PARAMS: Rinit=70k
+X00 row0 col0 memristor PARAMS: Rinit=1000
+X01 row0 col1 memristor PARAMS: Rinit=1000
+X02 row0 col2 memristor PARAMS: Rinit=1000
+X03 row0 col3 memristor PARAMS: Rinit=1000
+X04 row0 col4 memristor PARAMS: Rinit=1000
+X10 row1 col0 memristor PARAMS: Rinit=1000
+X11 row1 col1 memristor PARAMS: Rinit=1000
+X12 row1 col2 memristor PARAMS: Rinit=1000
+X13 row1 col3 memristor PARAMS: Rinit=1000
+X14 row1 col4 memristor PARAMS: Rinit=1000
+X20 row2 col0 memristor PARAMS: Rinit=3000
+X21 row2 col1 memristor PARAMS: Rinit=3000
+X22 row2 col2 memristor PARAMS: Rinit=3000
+X23 row2 col3 memristor PARAMS: Rinit=3000
+X24 row2 col4 memristor PARAMS: Rinit=3000
+X30 row3 col0 memristor PARAMS: Rinit=5000
+X31 row3 col1 memristor PARAMS: Rinit=5000
+X32 row3 col2 memristor PARAMS: Rinit=5000
+X33 row3 col3 memristor PARAMS: Rinit=5000
+X34 row3 col4 memristor PARAMS: Rinit=5000
+X40 row4 col0 memristor PARAMS: Rinit=4000
+X41 row4 col1 memristor PARAMS: Rinit=4000
+X42 row4 col2 memristor PARAMS: Rinit=4000
+X43 row4 col3 memristor PARAMS: Rinit=4000
+X44 row4 col4 memristor PARAMS: Rinit=4000
-X10 row1 col0 memristor PARAMS: Rinit=1k
-X11 row1 col1 memristor PARAMS: Rinit=100k
-X12 row1 col2 memristor PARAMS: Rinit=50k
-X13 row1 col3 memristor PARAMS: Rinit=70k
-
-******************************************************
* Column Loads
-******************************************************
-
-RLOAD0 col0 0 1k
-RLOAD1 col1 0 1k
-RLOAD2 col2 0 1k
-RLOAD3 col3 0 1k
+RLOAD0 col0 0 50
+RLOAD1 col1 0 50
+RLOAD2 col2 0 50
+RLOAD3 col3 0 50
+RLOAD4 col4 0 50
-******************************************************
* Simulation
-******************************************************
-
.tran 1n 100n uic
-
.control
-
run
-
print v(col0)
print v(col1)
print v(col2)
print v(col3)
-save all
-.endc
+print v(col4)
-.end
+.endc
+.end \ No newline at end of file
diff --git a/src/crossbar__goal.cir b/src/crossbar__goal.cir
new file mode 100644
index 0000000..5668221
--- /dev/null
+++ b/src/crossbar__goal.cir
@@ -0,0 +1,57 @@
+*==========================================================
+* 2x2 HP Memristor Crossbar
+*==========================================================
+
+.include "hp_memristor.cir"
+
+******************************************************
+* Input Voltages (Rows)
+******************************************************
+
+.param VIN0=0.25
+.param VIN1=0.75
+
+VROW0 row0 0 DC {VIN0}
+VROW1 row1 0 DC {VIN1}
+
+******************************************************
+* Memristor Array
+******************************************************
+
+X00 row0 col0 memristor PARAMS: Rinit=1k
+X01 row0 col1 memristor PARAMS: Rinit=100k
+X02 row0 col2 memristor PARAMS: Rinit=50k
+X03 row0 col3 memristor PARAMS: Rinit=70k
+
+X10 row1 col0 memristor PARAMS: Rinit=1k
+X11 row1 col1 memristor PARAMS: Rinit=100k
+X12 row1 col2 memristor PARAMS: Rinit=50k
+X13 row1 col3 memristor PARAMS: Rinit=70k
+
+******************************************************
+* Column Loads
+******************************************************
+
+RLOAD0 col0 0 1k
+RLOAD1 col1 0 1k
+RLOAD2 col2 0 1k
+RLOAD3 col3 0 1k
+
+******************************************************
+* Simulation
+******************************************************
+
+.tran 1n 100n uic
+
+.control
+
+run
+
+print v(col0)
+print v(col1)
+print v(col2)
+print v(col3)
+save all
+.endc
+
+.end
diff --git a/src/crossbar_generator.c b/src/crossbar_generator.c
new file mode 100644
index 0000000..22a8dcc
--- /dev/null
+++ b/src/crossbar_generator.c
@@ -0,0 +1,184 @@
+#include <stdio.h>
+#include "crossbar_generator.h"
+
+static int validate_config(const Crossbar_Config *config) {
+ printf("validating configs...\n");
+ if (config == NULL) {
+ return -1;
+ }
+ if (config->rows == 0) {
+ return -1;
+ }
+ if (config->columns == 0) {
+ return -1;
+ }
+ if (config->input_voltages == NULL) {
+ return -1;
+ }
+ if (config->initial_resistance == NULL) {
+ return -1;
+ }
+ if (config->model_path == NULL) {
+ return -1;
+ }
+ if (config->subcircuit_name == NULL) {
+ return -1;
+ }
+ if (config->load_resistance <= 0.0) {
+ return -1;
+ }
+ if (config->time_step <= 0.0) {
+ return -1;
+ }
+ if (config->stop_time <= 0.0) {
+ return -1;
+ }
+ if (config->print_state_nodes != 0 && config->print_state_nodes != 1) {
+ return -1;
+ }
+ return 0;
+}
+
+//thus starts fprintf hell...
+static int write_header(FILE *file, const Crossbar_Config *config) {
+ if (fprintf(file, "* Generating a crossbar with:\n"
+ "*Rows: %zu\n"
+ "*Columns: %zu\n",
+ config->rows, config->columns ) < 0) {
+ fprintf(stderr, "Failed to write header at crossbar size");
+ return -1;
+ }
+
+ //include the memristor model
+ if (fprintf(file, "\n.include \"%s\"\n", config->model_path) < 0) {
+ fprintf(stderr, "Faile to write header at .include memristor");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int write_input_voltages(FILE *file, const Crossbar_Config *config) {
+ if (fprintf(file, "\n* Input Voltages\n") < 0) {
+ fprintf(stderr, "Failed to write input voltages comment label thing");
+ return -1;
+ }
+
+ //create a input voltage parameter for each row
+ for (size_t row = 0; row < config->rows; row++) {
+ if (fprintf(file, ".param VIN%zu=%.17g\n", row, config->input_voltages[row]) < 0) {
+ fprintf(stderr, "Failed to write input voltage parameters");
+ return -1;
+ }
+ }
+ printf("\n");
+
+ //apply the input voltage to the actual row
+ for (size_t row = 0; row < config->rows; row++) {
+ if (fprintf(file, "VROW%zu row%zu 0 DC {VIN%zu}\n", row, row, row) < 0) {
+ fprintf(stderr, "Failed to write input voltages");
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int write_memristor_array(FILE *file, const Crossbar_Config *config) {
+ if (fprintf(file, "\n* Memristor Array\n") < 0) {
+ fprintf(stderr, "Failed to write memristor array comment label thing");
+ return -1;
+ }
+
+ for (size_t row = 0; row < config->rows; row++) {
+ for (size_t column = 0; column < config->columns; column++) {
+ //initial_resistance here is done wrong, need to fix
+ if (fprintf(file,
+ "X%zu%zu row%zu col%zu %s"
+ " PARAMS: Rinit=%.0f\n", row, column, row, column,
+ config->subcircuit_name, config->initial_resistance[row]) < 0) {
+ fprintf(stderr, "Failed to write memristor array");
+ return -1;
+ }
+ }
+ printf("\n");
+ }
+ return 0;
+}
+
+static int write_column_loads(FILE *file, const Crossbar_Config *config) {
+ if (fprintf(file, "\n* Column Loads\n") < 0) {
+ fprintf(stderr, "Failed to write column loads comment label thing");
+ }
+
+ for (size_t column = 0; column < config->columns; column++) {
+ if (fprintf(file, "RLOAD%zu col%zu 0 %.0f\n", column, column,
+ config->load_resistance) < 0) {
+ fprintf(stderr, "Failed to write column loads");
+ return -1;
+ }
+ }
+ return 0;
+}
+
+
+static int write_simulation(FILE *file, const Crossbar_Config *config) {
+ if (fprintf(file, "\n* Simulation\n") < 0) {
+ fprintf(stderr, "Failed to write simulation header");
+ return -1;
+ }
+
+ if (fprintf(file, ".tran 1n 100n uic\n.control\nrun\n") < 0) {
+ fprintf(stderr, "Failed to write simulation command");
+ return -1;
+ }
+ return 0;
+}
+
+//This probably needs to change
+static int write_save_date(FILE *file, const Crossbar_Config *config) {
+ for (size_t column = 0; column < config->columns; column++) {
+ if (fprintf(file, "print v(col%zu)\n", column) < 0) {
+ fprintf(stderr, "Failed to write print statements");
+ return -1;
+ }
+ }
+
+ if (fprintf(file, "\n.endc\n.end") < 0) {
+ fprintf(stderr, "Failed to write end statements");
+ return -1;
+ }
+ return 0;
+}
+
+int generate_crossbar(const char *output_filename,
+ const Crossbar_Config *config) {
+ if (validate_config(config) < 0) {
+ fprintf(stderr, "invalid config");
+ return -1;
+ }
+
+ FILE *file = fopen(output_filename, "w");
+
+ if (file == NULL) {
+ fprintf(stderr, "could not create file");
+ return -1;
+ }
+
+ if (write_header(file, config) != 0 ||
+ write_input_voltages(file, config) != 0 ||
+ write_memristor_array(file, config) != 0 ||
+ write_column_loads(file, config) != 0 ||
+ write_simulation(file, config) != 0 ||
+ write_save_date(file, config) != 0) {
+
+ fclose(file);
+ return -1;
+ }
+
+ if (fclose(file) != 0) {
+ fprintf(stderr, "failed to close output file");
+ return -1;
+ }
+ return 0;
+}
diff --git a/src/crossbar_generator.h b/src/crossbar_generator.h
new file mode 100644
index 0000000..b7ec072
--- /dev/null
+++ b/src/crossbar_generator.h
@@ -0,0 +1,38 @@
+#ifndef CROSSBAR_GENERATOR_H
+#define CROSSBAR_GENERATOR_H
+
+#include <stddef.h>
+
+typedef struct {
+ size_t rows;
+ size_t columns;
+
+ //array of row input voltages.
+ //length must equal rows (# of rows)
+ const double *input_voltages;
+
+ //array of initial resistances
+ //stored in row-major order
+ const double *initial_resistance;
+
+ //path to the memory component path
+ const char *model_path;
+
+ //name of subcircuit(specific model)
+ const char *subcircuit_name;
+
+ //resistance from each column to ground
+ double load_resistance;
+
+ //transient sim settings
+ double time_step;
+ double stop_time;
+
+ //1 = true | 0 = false
+ int print_state_nodes;
+} Crossbar_Config;
+
+int generate_crossbar(const char *output_filename,
+ const Crossbar_Config *config);
+
+#endif
diff --git a/src/generate_crossbar_test b/src/generate_crossbar_test
new file mode 100755
index 0000000..73f2b36
--- /dev/null
+++ b/src/generate_crossbar_test
Binary files differ
diff --git a/src/generate_crossbar_test.c b/src/generate_crossbar_test.c
new file mode 100644
index 0000000..9abf0ed
--- /dev/null
+++ b/src/generate_crossbar_test.c
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include "crossbar_generator.h"
+
+int main() {
+
+ double voltages[] = {1.2, 3.3, 5.0, 4.3, 2.1};
+
+ double resistances[] = {
+ 1000, 1000, 3000, 5000, 4000,
+ 1000, 1000, 3000, 5000, 4000,
+ 1000, 1000, 3000, 5000, 4000,
+ 1000, 1000, 3000, 5000, 4000,
+ 1000, 1000, 3000, 5000, 4000,
+ };
+
+ const Crossbar_Config config = {
+ .rows = 5,
+ .columns = 5,
+ .input_voltages = voltages,
+ .initial_resistance = resistances,
+ .model_path = "hp_memristor.cir",
+ .subcircuit_name = "memristor",
+ .load_resistance = 50.0,
+ .time_step = 1e-6, //1 microsecond
+ .stop_time = 1e-3, //1 millisecond
+ .print_state_nodes = 0 //false
+ };
+
+ generate_crossbar("crossbar.cir", &config);
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.51.0) at 2026-09-28 08:36:46 +0000