Updates along with SDK1.3.0 release (#181)

Bug fixes and new examples

Co-authored-by: Paulo Marques <pm@quant-insight.com>
Co-authored-by: martin <admin@crossleys.biz>
Co-authored-by: matiasilva <matias.silva@raspberrypi.com>
Co-authored-by: Uri Shaked <uri@urishaked.com>
Co-authored-by: Diego Solano <diegosolano@gmail.com>
Co-authored-by: Andrew Scheller <andrew.scheller@raspberrypi.com>
Co-authored-by: Adrian Hesketh <a-h@users.noreply.github.com>
Co-authored-by: Emircan Gündoğdu <58917386+emircangun@users.noreply.github.com>
Co-authored-by: Josef Wegner <80200012+josefwegner@users.noreply.github.com>
Co-authored-by: pmarques-dev <72901351+pmarques-dev@users.noreply.github.com>
Co-authored-by: Paulo Marques <pm@quant-insight.com>
Co-authored-by: mjcross <mjcross@users.noreply.github.com>
Co-authored-by: martin <admin@crossleys.biz>

spi/CMakeLists.txt

@@ -1,6 +1,6 @@
 if (NOT PICO_NO_HARDWARE)
-    add_subdirectory(spi_flash)
-    add_subdirectory(mpu9250_spi)
     add_subdirectory(bme280_spi)
+    add_subdirectory(mpu9250_spi)
     add_subdirectory(spi_dma)
+    add_subdirectory(spi_flash)
 endif ()

spi/bme280_spi/CMakeLists.txt

@@ -2,7 +2,7 @@ add_executable(bme280_spi
         bme280_spi.c
         )
 
-# Pull in our (to be renamed) simple get you started dependencies
+# pull in common dependencies and additional spi hardware support
 target_link_libraries(bme280_spi pico_stdlib hardware_spi)
 
 # create map/bin/hex file etc.

spi/bme280_spi/README.adoc

@@ -42,9 +42,7 @@ bme280_spi.c:: The example code.
 |===
 | *Item* | *Quantity* | Details
 | Breadboard | 1 | generic part
-| Raspberry Pi Pico | 1 | http://raspberrypi.org/
+| Raspberry Pi Pico | 1 | https://www.raspberrypi.com/products/raspberry-pi-pico/
 | BME280 board| 1 | generic part
 | M/M Jumper wires | 6 | generic part
 |===
-
-

spi/bme280_spi/bme280_spi.c

@@ -13,7 +13,7 @@
 /* Example code to talk to a bme280 humidity/temperature/pressure sensor.
 
    NOTE: Ensure the device is capable of being driven at 3.3v NOT 5v. The Pico
-   GPIO (and therefor SPI) cannot be used at 5v.
+   GPIO (and therefore SPI) cannot be used at 5v.
 
    You will need to use a level shifter on the SPI lines if you want to run the
    board at 5v.
@@ -52,7 +52,7 @@ int16_t dig_H2, dig_H4, dig_H5;
 /* The following compensation functions are required to convert from the raw ADC
 data from the chip to something usable. Each chip has a different set of
 compensation parameters stored on the chip at point of manufacture, which are
-read from the chip at startup and used inthese routines.
+read from the chip at startup and used in these routines.
 */
 int32_t compensate_temp(int32_t adc_T) {
     int32_t var1, var2, T;

spi/mpu9250_spi/CMakeLists.txt

@@ -2,7 +2,7 @@ add_executable(mpu9250_spi
         mpu9250_spi.c
         )
 
-# Pull in our (to be renamed) simple get you started dependencies
+# pull in common dependencies and additional spi hardware support
 target_link_libraries(mpu9250_spi pico_stdlib hardware_spi)
 
 # create map/bin/hex file etc.

spi/mpu9250_spi/README.adoc

@@ -44,9 +44,7 @@ mpu9250_spi.c:: The example code.
 |===
 | *Item* | *Quantity* | Details
 | Breadboard | 1 | generic part
-| Raspberry Pi Pico | 1 | http://raspberrypi.org/
+| Raspberry Pi Pico | 1 | https://www.raspberrypi.com/products/raspberry-pi-pico/
 | MPU9250 board| 1 | generic part
 | M/M Jumper wires | 6 | generic part
 |===
-
-

spi/spi_dma/spi_dma.c

@@ -56,7 +56,7 @@ int main() {
     printf("Configure TX DMA\n");
     dma_channel_config c = dma_channel_get_default_config(dma_tx);
     channel_config_set_transfer_data_size(&c, DMA_SIZE_8);
-    channel_config_set_dreq(&c, spi_get_index(spi_default) ? DREQ_SPI1_TX : DREQ_SPI0_TX);
+    channel_config_set_dreq(&c, spi_get_dreq(spi_default, true));
     dma_channel_configure(dma_tx, &c,
                           &spi_get_hw(spi_default)->dr, // write address
                           txbuf, // read address
@@ -70,7 +70,7 @@ int main() {
     // address to increment (so data is written throughout the buffer)
     c = dma_channel_get_default_config(dma_rx);
     channel_config_set_transfer_data_size(&c, DMA_SIZE_8);
-    channel_config_set_dreq(&c, spi_get_index(spi_default) ? DREQ_SPI1_RX : DREQ_SPI0_RX);
+    channel_config_set_dreq(&c, spi_get_dreq(spi_default, false));
     channel_config_set_read_increment(&c, false);
     channel_config_set_write_increment(&c, true);
     dma_channel_configure(dma_rx, &c,

spi/spi_flash/CMakeLists.txt

@@ -2,7 +2,7 @@ add_executable(spi_flash
         spi_flash.c
         )
 
-# Pull in basic dependencies
+# pull in common dependencies and additional spi hardware support
 target_link_libraries(spi_flash pico_stdlib hardware_spi)
 
 # create map/bin/hex file etc.