pwm test

Author: c1570

src/peripherals/pwm.spec.ts

@@ -0,0 +1,25 @@
+import { afterEach, beforeEach, describe, expect, it } from 'vitest';
+import { createTestDriver } from '../../test-utils/create-test-driver';
+import { ICortexTestDriver } from '../../test-utils/test-driver';
+import { RP2040TestDriver } from '../../test-utils/test-driver-rp2040';
+
+describe('PWM', () => {
+  let cpu: ICortexTestDriver;
+
+  beforeEach(async () => {
+    cpu = await createTestDriver();
+  });
+
+  afterEach(async () => {
+    await cpu.tearDown();
+  });
+
+  it('should not hang', async () => {
+    await cpu.writeUint32(0x4005008c,0);
+    await cpu.writeUint32(0x40050094,0);
+    await cpu.writeUint32(0x40050098,0);
+    await cpu.writeUint32(0x4005009c,9);
+    await cpu.writeUint32(0x40050090,16);
+    for(let i=0; i < 1000; i++) { cpu.singleStep(); console.log(i); }
+  });
+});

test-utils/test-driver-rp2040.ts

@@ -117,7 +117,8 @@ export class RP2040TestDriver implements ICortexTestDriver {
   }
 
   async singleStep() {
-    this.rp2040.step();
+    const cycles = this.rp2040.core.executeInstruction();
+    this.rp2040.clock.tick(cycles * 1e9 / 125_000_000); // 125 MHz
   }
 
   async readRegisters(): Promise<ICortexRegisters> {