0.2.7 DAC8551

libraries/DAC8551/CHANGELOG.md

@@ -6,6 +6,12 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.2.7] - 2023-09-23
+- add example DAC8531_hw_spi.ino + screenshot
+- update readme.md
+- minor edits
+
+
 ## [0.2.6] - 2022-10-31
 - add changelog.md
 - add rp2040 to build-CI

libraries/DAC8551/DAC8551.cpp

@@ -2,11 +2,8 @@
 //    FILE: DAC8551.cpp
 //  AUTHOR: Rob Tillaart
 // PURPOSE: Arduino library for DAC8551 SPI Digital Analog Convertor
-// VERSION: 0.2.6
+// VERSION: 0.2.7
 //     URL: https://github.com/RobTillaart/DAC8551
-//
-//  HISTORY: see changelog.md
-
 
 
 #include "DAC8551.h"
@@ -81,7 +78,7 @@ void DAC8551::setGPIOpins(uint8_t clk, uint8_t miso, uint8_t mosi, uint8_t selec
   pinMode(_select, OUTPUT);
   digitalWrite(_select, HIGH);
 
-  mySPI->end();  // disable SPI 
+  mySPI->end();  // disable SPI
   mySPI->begin(clk, miso, mosi, select);
 }
 #endif
@@ -139,7 +136,7 @@ void DAC8551::updateDevice()
     mySPI->transfer(_value & 0xFF);
     mySPI->endTransaction();
   }
-  else //  Software SPI 
+  else //  Software SPI
   {
     swSPI_transfer(configRegister);
     swSPI_transfer(_value >> 8);
@@ -166,7 +163,7 @@ void DAC8551::swSPI_transfer(uint8_t value)
 /////////////////////////////////////////////////////////
 //
 //  derive 8501, 8531 and 8550 from 8551
-// 
+//
 
 DAC8501::DAC8501(uint8_t slaveSelect) : DAC8551(slaveSelect)
 {
@@ -201,5 +198,5 @@ DAC8550::DAC8550(uint8_t spiData, uint8_t spiClock, uint8_t slaveSelect)
 }
 
 
-// -- END OF FILE --
+//  -- END OF FILE --
 

libraries/DAC8551/DAC8551.h

@@ -2,9 +2,9 @@
 //
 //    FILE: DAC8551.h
 //  AUTHOR: Rob Tillaart
-// PURPOSE: Arduino library for DAC8551 SPI Digital Analog Convertor  
+// PURPOSE: Arduino library for DAC8551 SPI Digital Analog Convertor
 //          could work with DAC8550, not tested
-// VERSION: 0.2.6
+// VERSION: 0.2.7
 // HISTORY: See DAC8551.cpp
 //     URL: https://github.com/RobTillaart/DAC8551
 //
@@ -14,7 +14,7 @@
 #include "SPI.h"
 
 
-#define DAC8551_LIB_VERSION            (F("0.2.6"))
+#define DAC8551_LIB_VERSION            (F("0.2.7"))
 
 
 #define DAC8551_POWERDOWN_NORMAL       0
@@ -81,7 +81,7 @@ protected:
 /////////////////////////////////////////////////////////
 //
 // derive 8501, 8531 and 8550 from 8551
-// 
+//
 
 #define DAC8501_POWERDOWN_NORMAL       0
 #define DAC8501_POWERDOWN_1K           1

libraries/DAC8551/README.md

@@ -2,8 +2,11 @@
 [![Arduino CI](https://github.com/RobTillaart/DAC8551/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
 [![Arduino-lint](https://github.com/RobTillaart/DAC8551/actions/workflows/arduino-lint.yml/badge.svg)](https://github.com/RobTillaart/DAC8551/actions/workflows/arduino-lint.yml)
 [![JSON check](https://github.com/RobTillaart/DAC8551/actions/workflows/jsoncheck.yml/badge.svg)](https://github.com/RobTillaart/DAC8551/actions/workflows/jsoncheck.yml)
+[![GitHub issues](https://img.shields.io/github/issues/RobTillaart/DAC8551.svg)](https://github.com/RobTillaart/DAC8551/issues)
+
 [![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/DAC8551/blob/master/LICENSE)
 [![GitHub release](https://img.shields.io/github/release/RobTillaart/DAC8551.svg?maxAge=3600)](https://github.com/RobTillaart/DAC8551/releases)
+[![PlatformIO Registry](https://badges.registry.platformio.org/packages/robtillaart/library/DAC8551.svg)](https://registry.platformio.org/libraries/robtillaart/DAC8551)
 
 
 # DAC8551
@@ -15,14 +18,23 @@ Arduino library for DAC8501 DAC8531, DAC8550, DAC8551 SPI Digital Analog Convert
 
 The DAC8551 is a SPI based 16 bit DAC with one channel.
 
-The DAC8501, DAC8531 and DAC8550 are drop in compatible 
-They all have classed derived 1 to 1 from DAC8551.
+The DAC8501, DAC8531 and DAC8550 are drop in compatible.
+They all have classes derived 1 to 1 from DAC8551.
 
 **Warning** this library is not tested extensively.
 
 
+#### Related
+
+- https://github.com/RobTillaart/AD5680  (18 bit DAC)
+
+
 ## Interface
 
+```cpp
+#include "DAC8551.h"
+```
+
 ### Core
 
 - **DAC8501(uint8_t slaveSelect)** Constructor for DAC8501 with hardware SPI,
@@ -102,7 +114,28 @@ See examples
 
 ## Future
 
-- testing
+#### Must
+
+- improve documentation
+
+
+#### Should 
+
+- testing (DAC8531 is verified, see example)
 - verify replacement chips
 
 
+#### Could
+
+
+#### Wont
+
+
+## Support
+
+If you appreciate my libraries, you can support the development and maintenance.
+Improve the quality of the libraries by providing issues and Pull Requests, or
+donate through PayPal or GitHub sponsors.
+
+Thank you,
+

libraries/DAC8551/examples/DAC8531_hw_spi/DAC8531_hw_spi.ino

@@ -0,0 +1,53 @@
+//
+//    FILE: DAC8531_hw_spi.ino
+//  AUTHOR: Rob Tillaart
+// PURPOSE: demo DAC8551 library Arduino with hardware SPI
+//     URL: https://github.com/RobTillaart/DAC8551
+
+
+#include "DAC8551.h"
+
+DAC8531 mydac(8); // CLK=D13, MISO=D11, SS = D8
+
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial.println(__FILE__);
+  Serial.println(DAC8551_LIB_VERSION);
+  mydac.begin();
+}
+
+
+void loop()
+{
+  // minimal sawtooth
+  for (uint16_t val = 0; val < 65500; val += 30)
+  {
+    mydac.setValue(val);
+    int av = analogRead(A0);
+
+    Serial.print(val);
+    Serial.print("\t ==> \t");
+    Serial.print(av);
+    if (val % 300 == 0) Serial.println();
+  }
+  Serial.println();
+
+  // minimal sinus
+  for (long i = 0; i < 360; i++ )
+  {
+    long s = 32768 + 32768 * sin( i * (PI / 180.0));
+    mydac.setValue(s);
+    int av = analogRead(A0);
+    Serial.print(i);
+    Serial.print("\t ==> \t");
+    Serial.print(av);
+    delay(100);
+    if (i % 30 == 0) Serial.println();
+  }
+  Serial.println();
+}
+
+
+//  -- END OF FILE --

libraries/DAC8551/examples/DAC8551_ESP32_VSPI/.arduino-ci.yml

@@ -0,0 +1,28 @@
+platforms:
+  rpipico:
+    board: rp2040:rp2040:rpipico
+    package: rp2040:rp2040
+    gcc:
+      features:
+      defines:
+        - ARDUINO_ARCH_RP2040
+      warnings:
+      flags:
+
+packages:
+  rp2040:rp2040:
+    url: https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
+
+compile:
+  # Choosing to run compilation tests on 2 different Arduino platforms
+  platforms:
+    # - uno
+    # - due
+    # - zero
+    # - leonardo
+    # - m4
+    - esp32
+    # - esp8266
+    # - mega2560
+    # - rpipico
+

libraries/DAC8551/examples/DAC8551_ESP32_VSPI/DAC8551_ESP32_VSPI.ino

@@ -0,0 +1,54 @@
+//
+//    FILE: DAC8551_ESP32_VSPI.ino
+//  AUTHOR: Rob Tillaart
+// PURPOSE: demo DAC8551 library Arduino with hardware SPI
+//     URL: https://github.com/RobTillaart/DAC8551
+
+
+#include "DAC8551.h"
+#include "Wire.h"
+
+// HW SPI uses slave spin since 0.2.0
+DAC8531 mydac(1);
+
+
+void setup()
+{
+  Serial.begin(115200);
+  mydac.selectVSPI();
+  mydac.begin();
+}
+
+
+void loop()
+{
+  // minimal sawtooth
+  for (uint16_t val = 0; val < 65500; val += 30)
+  {
+    mydac.setValue(val);
+    int av = analogRead(A0);
+
+    Serial.print(val);
+    Serial.print("\t ==> \t");
+    Serial.print(av);
+    if (val % 300 == 0) Serial.println();
+  }
+  Serial.println();
+
+  // minimal sinus
+  for (long i = 0; i < 360; i++ )
+  {
+    long s = 32768 + 32768 * sin( i * (PI / 180.0));
+    mydac.setValue(s);
+    int av = analogRead(A0);
+    Serial.print(i);
+    Serial.print("\t ==> \t");
+    Serial.print(av);
+    delay(100);
+    if (i % 30 == 0) Serial.println();
+  }
+  Serial.println();
+}
+
+
+// -- END OF FILE --

libraries/DAC8551/library.json

@@ -15,9 +15,9 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/DAC8551"
   },
-  "version": "0.2.6",
+  "version": "0.2.7",
   "license": "MIT",
-  "frameworks": "arduino",
+  "frameworks": "*",
   "platforms": "*",
   "headers": "DAC8551.h"
 }

libraries/DAC8551/library.properties

@@ -1,5 +1,5 @@
 name=DAC8551
-version=0.2.6
+version=0.2.7
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library for DAC8501, DAC8531, DAC8550 and DAC8551 SPI 16-bit Digital Analog Convertor