Fix SPI pinout (#4)

* Fix default SPI pinout

* Update doc about SPI allowed pins

* Fix spi1 interface

* Convert to tabs

CMakeLists.txt

@@ -1,10 +1,13 @@
 # User configuration section starts here
 
-# Default output data pin for the LED strip
+# Default output data pin for the non-SPI LED strips (only for sk6812/ws2812b)
 set(OUTPUT_DATA_PIN 2)
 
-# Default output clock pin for the LED strip (SPI leds only, not for sk6812/ws2812b)
-set(OUTPUT_CLOCK_PIN 3)
+# Default output data/clocks pin for the SPI LED strips (only for apa102, not for sk6812/ws2812b)
+# only certain pairs of pins are allowed for selected SPI interface (refer to "readme.md")
+set(OUTPUT_SPI_DATA_PIN 3)
+set(OUTPUT_SPI_CLOCK_PIN 2)
+set(SPI_INTERFACE spi0)
 
 # Use multi-segment, starting index of second led strip or OFF to disable
 set(SECOND_SEGMENT_INDEX OFF)
@@ -62,7 +65,7 @@ endmacro()
 # targets for different LED strips
 IF(NOT SECOND_SEGMENT_INDEX)
     HyperSerialPicoTarget("HyperSerialPico_Spi")
-    target_compile_definitions(HyperSerialPico_Spi PRIVATE -DSPILED_APA102 -DDATA_PIN=${OUTPUT_DATA_PIN} -DCLOCK_PIN=${OUTPUT_CLOCK_PIN})
+    target_compile_definitions(HyperSerialPico_Spi PRIVATE -DSPILED_APA102 -DSPI_INTERFACE=${SPI_INTERFACE} -DDATA_PIN=${OUTPUT_SPI_DATA_PIN} -DCLOCK_PIN=${OUTPUT_SPI_CLOCK_PIN})
     HyperSerialPicoTarget("HyperSerialPico_sk6812Cold")
     target_compile_definitions(HyperSerialPico_sk6812Cold PRIVATE -DNEOPIXEL_RGBW -DCOLD_WHITE -DDATA_PIN=${OUTPUT_DATA_PIN})
     HyperSerialPicoTarget("HyperSerialPico_sk6812Neutral")

README.md

@@ -29,17 +29,20 @@ In the system file explorer you should find new drive (e.g. called `RPI-RP2` dri
 The Pico will reset automaticly after the upload and after few seconds it will be ready to use by HyperHDR as a serial port device using Adalight driver.
 
 # HyperHDR configuration
-Make sure you have enabled `AWA protocol` and `Esp8266/ESP32/Rp2040 handshake` options.  
-You can leave the speed at `2000000` because the CDC driver should use the highest possible speed automatically (at least it happens on Windows).  
+You need HyperHDR v20 or newer. Make sure you have enabled `AWA protocol` and `Esp8266/ESP32/Rp2040 handshake` options. You can leave the speed at `2000000` because the CDC driver should use the highest possible speed automatically (at least it happens on Windows).  
+
 ![obraz](https://user-images.githubusercontent.com/69086569/236870662-12f67d14-c2ca-4ba1-b6a3-e34c27949d19.png)
 
 # Default pinout
 
 **LED output (SK6812/WS281x):** GPIO2 for Data    
-**LED output (SPI LEDs):** GPIO2 for Data, GPIO3 for Clock  
+**LED output (SPI LEDs):** GPIO3 for Data, GPIO2 for Clock  
+
+rp2040 allows hardware SPI on corresponding pairs of pins:  
+spi0 ⇒ Data/Clock: GPIO3/GPIO2, GPIO19/GPIO18, GPIO7/GPIO6  
+spi1 ⇒ Data/Clock: GPIO11/GPIO10, GPI15/GPIO14, GPIO27/GPI26  
 
-Pinout can be changed, but you need to make changes to CMakeList.txt (`OUTPUT_DATA_PIN`/`OUTPUT_CLOCK_PIN`) and recompile the project. Also multi-segment mode can be enabled in this file: `SECOND_SEGMENT_INDEX` option at the beginning and optionally `SECOND_SEGMENT_REVERSED`.  
-Once compiled, the results can be found in the `firmwares` folder.  
+Pinout can be changed, but you need to make changes to `CMakeList.txt` (e.g. `OUTPUT_DATA_PIN` / `OUTPUT_SPI_DATA_PIN` / `OUTPUT_SPI_CLOCK_PIN`) and recompile the project. Also multi-segment mode can be enabled in this file: `SECOND_SEGMENT_INDEX` option at the beginning and optionally `SECOND_SEGMENT_REVERSED`. Once compiled, the results can be found in the `firmwares` folder.  
 
 # Some benchmark results
 

include/base.h

@@ -104,7 +104,7 @@ class Base
 				#if defined(NEOPIXEL_RGBW) || defined(NEOPIXEL_RGB)
 					ledStrip1 = new LED_DRIVER(ledsNumber, DATA_PIN);
 				#else
-					ledStrip1 = new LED_DRIVER(ledsNumber, DATA_PIN, CLOCK_PIN);
+					ledStrip1 = new LED_DRIVER(ledsNumber, SPI_INTERFACE, DATA_PIN, CLOCK_PIN);
 				#endif
 			}
 		}