Initial Filedump

Tadaaa!!

1 files changed, 113 insertions, 0 deletions

diff --git a/sw/Core/Src/dac.h b/sw/Core/Src/dac.h
new file mode 100755
index 0000000..ba9c855
--- /dev/null
+++ b/sw/Core/Src/dac.h
@@ -0,0 +1,113 @@
+
+enum {
+	OUT_TRIGGER,
+	OUT_CLOCK,
+	OUT_PRESSURE,
+	OUT_GATE,
+	OUT_PITCHLO,
+	OUT_PITCHHI,
+};
+
+#ifdef EMU
+int emucvouthist;
+float emucvout[6][256];
+float emupitchloopback;
+#endif
+
+#ifdef EMU
+void SetOutputCVEmu(int chan, int data) {
+	emucvout[chan][emucvouthist/4] = maxf(emucvout[chan][emucvouthist/4],data * (1.f/65535.f));
+}
+#else
+#define SetOutputCVEmu(chan, data)
+#endif
+
+void SetOutputCVTrigger(int data) {
+#ifdef EMU
+	SetOutputCVEmu(OUT_TRIGGER, data);
+#else
+//	HAL_GPIO_WritePin(CVOUTTRIG_GPIO_Port, CVOUTTRIG_Pin, data ? GPIO_PIN_SET : GPIO_PIN_RESET);
+	__HAL_TIM_SET_COMPARE(&htim3, TIM_CHANNEL_4, clampi(data,0,65535)>>8);
+#endif
+}
+void SetOutputCVClk(int data) {
+#ifdef EMU
+	SetOutputCVEmu(OUT_CLOCK, data);
+#else
+//	HAL_GPIO_WritePin(CVOUTCLK_GPIO_Port, CVOUTCLK_Pin, data ? GPIO_PIN_SET : GPIO_PIN_RESET);
+	__HAL_TIM_SET_COMPARE(&htim3, TIM_CHANNEL_3, clampi(data,0,65535)>>8);
+#endif
+}
+u8 maxpressure_out;
+void SetOutputCVPressure(int data) {
+	maxpressure_out = clampi(data >> 6,0,255);
+#ifdef EMU
+	SetOutputCVEmu(OUT_PRESSURE, data);
+#else
+	__HAL_TIM_SET_COMPARE(&htim3, TIM_CHANNEL_1, clampi(data,0,65535)>>8);
+#endif
+}
+void SetOutputCVGate(int data) {
+#ifdef EMU
+	SetOutputCVEmu(OUT_GATE, data);
+#else
+	__HAL_TIM_SET_COMPARE(&htim3, TIM_CHANNEL_2, clampi(data, 0, 65535) >> 8);
+#endif
+}
+void SetOutputCVPitchLo(int data, bool applycalib) {
+	if (applycalib) {
+		data = (int)((data * cvcalib[8].scale) + cvcalib[8].bias);
+		int step=abs((int)(cvcalib[8].scale*(2048.f*12.f)));
+		for (int k=0;k<3;++k) if (data>65535) data-=step; else break;
+		for (int k=0;k<3;++k) if (data<0) data+=step; else break;
+	}
+#ifdef EMU
+	SetOutputCVEmu(OUT_PITCHLO, data);
+	emupitchloopback = (data - 52100.f) / -9334.83f;
+#else
+	HAL_DAC_SetValue(&hdac1, DAC_CHANNEL_1, DAC_ALIGN_12B_L, clampi(data,0,65535) );
+#endif
+}
+int pitchhi_out;
+void SetOutputCVPitchHi(int data, bool applycalib) {
+	pitchhi_out = data ;
+	if (applycalib) {
+		data = (int)((data * cvcalib[9].scale) + cvcalib[9].bias);
+		int step=abs((int)(cvcalib[9].scale*(2048.f*12.f)));
+		for (int k=0;k<3;++k) if (data>65535) data-=step; else break;
+		for (int k=0;k<3;++k) if (data<0) data+=step; else break;
+	}
+#ifdef EMU
+	SetOutputCVEmu(OUT_PITCHHI, data);
+#else
+	HAL_DAC_SetValue(&hdac1, DAC_CHANNEL_2, DAC_ALIGN_12B_L, clampi(data,0,65535) );
+#endif
+}
+
+void dac_init(void) {
+#ifndef EMU
+	HAL_DAC_Start(&hdac1, DAC_CHANNEL_1);
+	HAL_DAC_Start(&hdac1, DAC_CHANNEL_2);
+
+	// must start timer to actually have it work
+
+	// also start pwm outputs
+	HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_1);
+	HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_2);
+	HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_3);
+	HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_4);
+#endif
+}
+
+extern int arpdebugi;
+
+void AdvanceCVOut() {
+#ifdef EMU
+	emucvouthist++;
+	emucvouthist &= 1023;
+	if ((emucvouthist & 3) == 0) {
+		for (int c = 0; c < 6; ++c) emucvout[c][emucvouthist / 4] = 0;
+	}
+	arpdebugi = (arpdebugi + 1) & 1023;
+#endif
+}