examples: support spi master examples on esp32cxx

examples/peripherals/.build-test-rules.yml

@@ -132,18 +132,6 @@ examples/peripherals/sigma_delta:
   disable:
     - if: SOC_SDM_SUPPORTED != 1
 
-examples/peripherals/spi_master/hd_eeprom:
-  disable:
-    - if: IDF_TARGET == "esp32c2"
-      temporary: true
-      reason: target esp32c2 is not supported yet
-
-examples/peripherals/spi_master/lcd:
-  enable:
-    - if: IDF_TARGET in ["esp32", "esp32c3", "esp32s2"]
-      temporary: true
-      reason: the other targets are not tested yet
-
 examples/peripherals/spi_slave_hd/append_mode/slave:
   enable:
     - if: IDF_TARGET == "esp32s2"

examples/peripherals/spi_master/hd_eeprom/README.md

@@ -1,5 +1,5 @@
-| Supported Targets | ESP32 | ESP32-C3 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- |
 
 ## SPI master half duplex EEPROM example
 
@@ -11,16 +11,16 @@
 
 For different chip and host used, the connections may be different.
 
-|      | ESP32 | ESP32 | ESP32S2 | ESP32C3 | ESP32S3 |
-| ---- | ----- | ----- | ------- | ------- | ------- |
-| Host | SPI1  | HSPI  | FSPI    | SPI2    | SPI2    |
-| VCC  | 3.3V  | 3.3V  | 3.3V    | 3.3V    | 3.3V    |
-| GND  | GND   | GND   | GND     | GND     | GND     |
-| DO   | 7     | 18    | 37      | 2       | 13      |
-| DI   | 8     | 23    | 35      | 7       | 11      |
-| SK   | 6     | 19    | 36      | 6       | 12      |
-| CS   | 13    | 13    | 34      | 10      | 10      |
-| ORG  | GND   | GND   | GND     | GND     | GND     |
+|      | ESP32 | ESP32 | ESP32S2 | ESP32C2 | ESP32C3 | ESP32S3 |
+| ---- | ----- | ----- | ------- | ------- | ------- | ------- |
+| Host | SPI1  | HSPI  | SPI2    | SPI2    | SPI2    | SPI2    |
+| VCC  | 3.3V  | 3.3V  | 3.3V    | 3.3V    | 3.3V    | 3.3V    |
+| GND  | GND   | GND   | GND     | GND     | GND     | GND     |
+| DO   | 7     | 18    | 37      | 2       | 2       | 13      |
+| DI   | 8     | 23    | 35      | 7       | 7       | 11      |
+| SK   | 6     | 19    | 36      | 6       | 6       | 12      |
+| CS   | 13    | 13    | 34      | 10      | 10      | 10      |
+| ORG  | GND   | GND   | GND     | GND     | GND     | GND     |
 
 ### Notes
 

examples/peripherals/spi_master/hd_eeprom/main/spi_eeprom_main.c

@@ -45,7 +45,7 @@
 #  define PIN_NUM_MOSI 35
 #  define PIN_NUM_CLK  36
 #  define PIN_NUM_CS   34
-#elif defined CONFIG_IDF_TARGET_ESP32C3
+#elif defined CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32C2
 #  define EEPROM_HOST    SPI2_HOST
 
 #  define PIN_NUM_MISO 2

examples/peripherals/spi_master/lcd/README.md

@@ -1,11 +1,11 @@
-| Supported Targets | ESP32 | ESP32-C3 | ESP32-S2 |
-| ----------------- | ----- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- |
 
 # SPI Host Driver Example
 
 (See the README.md file in the upper level 'examples' directory for more information about examples.)
 
-This example aims to show how to use SPI Host driver API, like `spi_transaction_t` and spi_device_queue. 
+This example aims to show how to use SPI Host driver API, like `spi_transaction_t` and spi_device_queue.
 
 If you are looking for code to drive LCDs in general, rather than code that uses the SPI master, that may be a better example to look at as it uses ESP-IDFs built-in LCD support rather than doing all the low-level work itself, which can be found at `examples/peripherals/lcd/tjpgd/`
 

examples/peripherals/spi_master/lcd/main/spi_master_example_main.c

@@ -40,18 +40,18 @@
 #define PIN_NUM_DC   21
 #define PIN_NUM_RST  18
 #define PIN_NUM_BCKL 5
-#elif defined CONFIG_IDF_TARGET_ESP32S2
+#elif defined CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3
 #define LCD_HOST    SPI2_HOST
 
 #define PIN_NUM_MISO 37
 #define PIN_NUM_MOSI 35
 #define PIN_NUM_CLK  36
-#define PIN_NUM_CS   34
+#define PIN_NUM_CS   45
 
 #define PIN_NUM_DC   4
 #define PIN_NUM_RST  5
 #define PIN_NUM_BCKL 6
-#elif defined CONFIG_IDF_TARGET_ESP32C3
+#elif defined CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32C2
 #define LCD_HOST    SPI2_HOST
 
 #define PIN_NUM_MISO 2
@@ -258,9 +258,11 @@ void lcd_init(spi_device_handle_t spi)
     const lcd_init_cmd_t* lcd_init_cmds;
 
     //Initialize non-SPI GPIOs
-    gpio_set_direction(PIN_NUM_DC, GPIO_MODE_OUTPUT);
-    gpio_set_direction(PIN_NUM_RST, GPIO_MODE_OUTPUT);
-    gpio_set_direction(PIN_NUM_BCKL, GPIO_MODE_OUTPUT);
+    gpio_config_t io_conf = {};
+    io_conf.pin_bit_mask = ((1ULL<<PIN_NUM_DC) | (1ULL<<PIN_NUM_RST) | (1ULL<<PIN_NUM_BCKL));
+    io_conf.mode = GPIO_MODE_OUTPUT;
+    io_conf.pull_up_en = true;
+    gpio_config(&io_conf);
 
     //Reset the display
     gpio_set_level(PIN_NUM_RST, 0);