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| author | Uri Shaked | 2022-02-21 17:49:10 +0200 |
|---|---|---|
| committer | Uri Shaked | 2022-02-21 17:49:10 +0200 |
| commit | 0f2a3b0abf058d04f5368d7c1ce55131d5e319a0 (patch) | |
| tree | 67727dbe707e3d49a1f9071bce2487774084596f /src/peripherals/timer.spec.ts | |
| parent | Merge pull request #116 from Dudeplayz/master (diff) | |
| download | avr8js-0f2a3b0abf058d04f5368d7c1ce55131d5e319a0.tar.gz avr8js-0f2a3b0abf058d04f5368d7c1ce55131d5e319a0.tar.bz2 avr8js-0f2a3b0abf058d04f5368d7c1ce55131d5e319a0.zip | |
fix(timer): OCRH masking #117
Diffstat (limited to 'src/peripherals/timer.spec.ts')
| -rw-r--r-- | src/peripherals/timer.spec.ts | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/peripherals/timer.spec.ts b/src/peripherals/timer.spec.ts index 27ef7fb..9330168 100644 --- a/src/peripherals/timer.spec.ts +++ b/src/peripherals/timer.spec.ts @@ -1245,6 +1245,17 @@ describe('timer', () => { expect(cpu.readData(R19)).toEqual(0x5); expect(cpu.readData(R20)).toEqual(0x3); }); + + it('should mask the unused bits of OCR1A when using fixed top values', () => { + const cpu = new CPU(new Uint16Array(0x1000)); + new AVRTimer(cpu, timer1Config); + cpu.writeData(TCCR1A, WGM10 | WGM11); // WGM: FastPWM, top 0x3ff + cpu.writeData(TCCR1B, WGM12); + cpu.writeData(OCR1AH, 0xff); + cpu.writeData(OCR1A, 0xff); + expect(cpu.readData(OCR1A)).toEqual(0xff); + expect(cpu.readData(OCR1AH)).toEqual(0x03); + }); }); describe('External clock', () => { |