From: Vladimir Garistov <vl.garistov@gmail.com>
Date: Thu, 29 Aug 2024 18:17:40 +0000 (+0300)
Subject: FIX: I don't actually remember what was wrong ¯\_(ツ)_/¯
X-Git-Url: https://kolegite.com/gitweb/?a=commitdiff_plain;h=a968a1a9f5150b549cdb168678e47668ac6e9981;p=vmks.git

FIX: I don't actually remember what was wrong ¯\_(ツ)_/¯
---

diff --git a/Examples/SPI/SPI_digital_pot_MCP4261/SPI_digital_pot_MCP4261.ino b/Examples/SPI/SPI_digital_pot_MCP4261/SPI_digital_pot_MCP4261.ino
index 6c09275..cbed6cc 100644
--- a/Examples/SPI/SPI_digital_pot_MCP4261/SPI_digital_pot_MCP4261.ino
+++ b/Examples/SPI/SPI_digital_pot_MCP4261/SPI_digital_pot_MCP4261.ino
@@ -1,14 +1,15 @@
 #include <SPI.h>
 
 #define INPUT_PIN	A0
+#define CS_PIN    53
 
-#define WRITE_CMD	0x00
-#define INCR_CMD	0x01
-#define DECR_CMD	0x02
-#define READ_CMD	0x03
+#define WRITE_CMD	((uint16_t) 0x00)
+#define INCR_CMD	((uint16_t) 0x01)
+#define DECR_CMD	((uint16_t) 0x02)
+#define READ_CMD	((uint16_t) 0x03)
 
-#define WIPER0_ADDR	0x00
-#define WIPER1_ADDR	0x01
+#define WIPER0_ADDR	((uint16_t) 0x00)
+#define WIPER1_ADDR	((uint16_t) 0x01)
 
 #define ADDR_OFFSET	12U
 #define CMD_OFFSET	10U
@@ -24,11 +25,12 @@ void setup()
 
 void loop()
 {
-	SPI.beginTransaction(SPISettings(10000000, MSBFIRST, SPI_MODE0));
-	SPI.transfer16(
-		WRITE_CMD << CMD_OFFSET |
-		WIPER0_ADDR << ADDR_OFFSET |
-		map(analogRead(INPUT_PIN), 0, 1023, 0, 256));
+  uint16_t pot_val = map(analogRead(INPUT_PIN), 0, 1023, 0, 256);
+	SPI.beginTransaction(SPISettings(1000000, MSBFIRST, SPI_MODE0));
+  digitalWrite(CS_PIN, LOW);
+	SPI.transfer16(WRITE_CMD << CMD_OFFSET | WIPER0_ADDR << ADDR_OFFSET | pot_val);
+  SPI.transfer16(WRITE_CMD << CMD_OFFSET | WIPER1_ADDR << ADDR_OFFSET | pot_val);
+  digitalWrite(CS_PIN, HIGH);
 	SPI.endTransaction();
 	delay(5);
 }