???

2020-06-11 11:25:19 +02:00
parent 5cb02880b3
commit 5177cd5cbd
15 changed files with 1090 additions and 411 deletions
--- a/ext/poti/MCP42xxx.h
+++ b/ext/poti/MCP42xxx.h
@@ -0,0 +1,33 @@
+#include "../../io/GPIO.h"
+#include "../../Debug.h"
+
+
+template <typename SPI, int PIN_CS> class MCP42xxx {
+
+private:
+
+	SPI& spi;
+
+public:
+
+	/** ctor */
+	MCP42xxx(SPI& spi) : spi(spi) {
+		;
+	}
+
+	void setVolume(const uint8_t vol) {
+
+		debugMod1(TAG, "setVolume(%d)", vol);
+
+		MyGPIO::setOutput(PIN_CS);
+		MyGPIO::clear(PIN_CS);
+
+		const uint8_t cmd = 0b00010011;		// xx   01=write  xx  11=both
+		spi.writeByte(cmd);
+		spi.writeByte(vol);
+
+		MyGPIO::set(PIN_CS);
+
+	}
+
+};