More refactoring

Lots of things removed but compiles again
2025-06-25 11:18:44 -05:00
parent 0556b06cab
commit 2ff7291c63
31 changed files with 1247 additions and 2569 deletions
--- a/source/dds.c
+++ b/source/dds.c
@@ -0,0 +1,91 @@
+#include "dds.h"
+#include "io.h"
+
+static void sendCommand(dds_t *dds, uint16_t reg, uint8_t *data, uint16_t len)
+{
+    uint8_t tmp[2];
+    tmp[0] = (uint8_t)(reg >> 8); // Reset bit held
+    tmp[1] = (uint8_t)(reg & 0x00ff);
+
+    SPI0_SendBytes(tmp, 2, dds->mode);
+
+    if (data != NULL)
+    {
+        SPI0_SendBytes(data, len, dds->mode);
+    }
+}
+
+static uint32_t calculateDDSValue(uint32_t frequency)  // Calculate frequency word for DDS
+{
+    // FREG = (Frequency * 2^28)/fclk = 12MHz normally
+	return (uint32_t)((frequency * 268435456.0) / DDS_CLK + 0.5);
+
+}
+
+void dds_setFrequency(dds_t *dds, uint32_t frequency)
+{
+    uint16_t freq_hi = FREQ0_REG;
+    uint16_t freq_lo = FREQ0_REG;
+
+    dds->frequency = frequency;
+
+    uint8_t data[4];
+
+    // set signal DDS
+	if (frequency > 0)
+    {
+        uint32_t freqValue = calculateDDSValue(dds->frequency);
+
+        freq_hi = FREQ0_REG;
+        freq_lo = FREQ0_REG;
+
+        freq_lo |= (freqValue & 0x3fff);
+        freqValue >>= 14;
+        freq_hi |= (freqValue & 0x3fff);
+
+        data[0] = (uint8_t)(freq_lo >> 8);		//LS 16-bit word, MSB
+        data[1] = (uint8_t)(freq_lo & 0x00ff);	//LS 16-bit word, LSB
+        data[2] = (uint8_t)(freq_hi >> 8);
+        data[3] = (uint8_t)(freq_hi & 0x00ff);
+
+        // send Control word to hold setup
+        sendCommand(dds, FRQ_CTRL_WORD1, data, sizeof(data));
+
+        // send Control word to release setup
+        sendCommand(dds, FRQ_CTRL_WORD2, NULL, 0);
+
+    }
+    else
+    {
+        dds_sleep(dds, true, false);
+    }
+
+}
+
+void dds_init(dds_t *dds, SPI_MODE_t mode, gpio_pin_t resetPin)
+{
+    dds->mode = mode;
+    dds->resetPin = resetPin;
+
+    dds_reset(dds, true);
+}
+
+void dds_reset(dds_t *dds, bool reset)
+{
+    GPIO_PinWrite(GPIO, dds->resetPin.port, dds->resetPin.pin, (reset ? 1 : 0) );
+}
+
+void dds_sleep(dds_t *dds, bool sleep, bool disableDAC)
+{
+    if (sleep)
+    {
+        if (disableDAC)
+        {
+            sendCommand(dds, SLP_CTRL_WRD2, NULL, 0);
+        }
+        else
+        {
+            sendCommand(dds, SLP_CTRL_WRD, NULL, 0);
+        }
+    }
+}