update E9 bug replication with additional tests

DangerousPrototypes · Aug 28, 2024 · e621c44 · e621c44
1 parent b55516c
commit e621c44
Showing 1 changed file with 48 additions and 11 deletions.
diff --git a/commands/global/bug.c b/commands/global/bug.c
@@ -21,6 +21,33 @@ static const struct ui_help_options options[] = {
     { 0, "-h", T_HELP_FLAG },
 };
 
+void bug_e9 (bool pullup){
+    printf("Disabling Bus Pirate pull-ups\r\n");
+    pullup_disable();
+    printf("Making IO0 buffer and GPIO input\r\n");
+    bio_input(BIO0);
+    busy_wait_ms(10);
+    printf("Making IO0 buffer an output\r\n");
+    bio_buf_output(BIO0);
+    busy_wait_ms(10);
+    printf("GPIO pin should be 0: %d\r\n", bio_get(BIO0));
+    printf("Making IO0 buffer and GPIO input\r\n");
+    bio_input(BIO0);   
+    if(pullup){
+        printf("Enabling Bus Pirate pull-ups\r\n");
+        pullup_enable();
+    }
+    printf("Making IO0 buffer an output\r\n");
+    bio_buf_output(BIO0);
+    printf("Disabling Bus Pirate pull-ups\r\n");
+    pullup_disable();
+    busy_wait_ms(10);
+    printf("GPIO pin should be 0: %d\r\n", bio_get(BIO0));
+    if(bio_get(BIO0)){
+        printf("GPIO is 1, E9 found\r\n");
+    }
+}
+
 void bug_handler(struct command_result* res) {
     if (ui_help_show(res->help_flag, usage, count_of(usage), options, count_of(options))) {
         return;
@@ -36,27 +63,37 @@ void bug_handler(struct command_result* res) {
 
     if(verb_e9) {
 
-        printf("Repeat bug E9\r\n");
+        printf("Replicate bug E9\r\n");
         uint32_t vout, isense, vreg;
         bool fuse;
         psu_measure(&vout, &isense, &vreg, &fuse); 
         if(vout<800){
             printf("Enable a power supply with the 'W' command.\r\n");
             return;
         }
-        //gpio_disable_pulls(pin_scl);
-        printf("Making IO0 buffer and GPIO input\r\n");
-        bio_input(BIO0);
-        printf("Enabling Bus Pirate pull-ups\r\n");
-        pullup_enable();
-        printf("Making IO0 buffer an output\r\n");
-        bio_buf_output(BIO0);
-        printf("Disabling Bus Pirate pull-ups\r\n");
-        pullup_disable();
+        printf("\r\nTest 1:\r\n");
+        printf("Pull-down disabled...\r\n");
+        gpio_disable_pulls(bio2bufiopin[BIO0]);
+        bug_e9(true);
+
+        printf("\r\nTest 2:\r\n");
+        printf("Set pulls disabled...\r\n");
+        gpio_set_pulls(bio2bufiopin[BIO0], false, false);
+        bug_e9(true);
+
+        printf("\r\nTest 3:\r\n");
+        bug_e9(true);
+        printf("GPIO.IE = false...\r\n");
+        gpio_set_input_enabled(bio2bufiopin[BIO0], false);
         busy_wait_ms(10);
         printf("GPIO pin should be 0: %d\r\n", bio_get(BIO0));
         if(bio_get(BIO0)){
-            printf("GPIO is 1, E9 found\n");
+            printf("GPIO is 1, E9 found\r\n");
         }
+
+        printf("\r\nTest 4:\r\n");
+        printf("Strong low test...\r\n");
+        gpio_set_input_enabled(bio2bufiopin[BIO0], true);
+        bug_e9(false);
     }
 }