SPI with ESP32-C6 (Supermini) working?

[dapostol73]

Hello, has anyone been able to to get ESP-C6 (SuperMini) working with this library? I get a few errors when I add #define CONFIG_IDF_TARGET_ESP32C6 and try and use Arduino_ESP32SPI

I'm not sure if I should be using that SPI class or another with it.
error: expected type-specifier before 'Arduino_ESP32SPI' 18 | Arduino_DataBus *bus = new Arduino_ESP32SPI(TFT_DC, TFT_CS, TFT_RST, TFT_MOSI);

From what I can see Arduino_ESP32SPI is not enable properly with CONFIG_IDF_TARGET_ESP32C6

If I do add it to the list of || defines to at the top of Arduino_ESP32SPI.h & Arduino_ESP32SPI.cpp I get these errors.

.pio/libdeps/esp32-c6-supermini/GFX Library for Arduino/src/databus/Arduino_ESP32SPI.cpp:144:13: error: 'spi_dev_t' {aka 'struct spi_dev_t'} has no member named 'pin' 144 | spi->dev->pin.val = 0; | ^~~ .pio/libdeps/esp32-c6-supermini/GFX Library for Arduino/src/databus/Arduino_ESP32SPI.cpp: In member function 'virtual bool Arduino_ESP32SPI::begin(int32_t, int8_t)': .pio/libdeps/esp32-c6-supermini/GFX Library for Arduino/src/databus/Arduino_ESP32SPI.cpp:308:30: error: no match for 'operator=' (operand types are 'volatile spi_wn_reg_t' and 'int') 308 | _spi->dev->data_buf[i] = 0x00000000; | ^~~~~~~~~~

Not sure what to try next....thanks

[dapostol73]

I was able to get it working using Arduino_HWSPI not sure that is the best way or the correct way to set it up.

[moononournation]

please use Arduino IDE try again

[dapostol73]

Same Error in ArduinoIDE.

D:\dapostol\arduino\projects\active\active2.ino\active2.ino.ino:9:28: error: expected type-specifier before 'Arduino_ESP32SPI'
    9 | Arduino_DataBus *bus = new Arduino_ESP32SPI(TFT_DC, TFT_CS, TFT_SCK, TFT_MOSI);
      |                            ^~~~~~~~~~~~~~~~
exit status 1

Compilation error: expected type-specifier before 'Arduino_ESP32SPI'

[moononournation]

seems you are using very old code. you may start with latest Arduino_GFX PDQGraphicstest example first.

[dapostol73]

I'm using the latest library 1.6.0, so not sure what you mean by old code. Are saying that Arduino_HWSPI is the correct way? When I look at the test, there are a bunch of different SPI, nothing specific for C6

#if defined(ARDUINO_ARCH_NRF52840)
// Arduino_DataBus *bus = new Arduino_mbedSPI(TFT_DC, TFT_CS);
Arduino_DataBus *bus = new Arduino_NRFXSPI(TFT_DC, TFT_CS, 13 /* SCK */, 11 /* MOSI */, 12 /* MISO */);
#elif defined(TARGET_RP2040) || defined(PICO_RP2350)
Arduino_DataBus *bus = new Arduino_RPiPicoSPI(TFT_DC /* DC */, TFT_CS /* CS */, 18 /* SCK */, 19 /* MOSI */, 16 /* MISO */, spi0 /* spi */);
#elif defined(ESP32) && (CONFIG_IDF_TARGET_ESP32)
Arduino_DataBus *bus = new Arduino_ESP32SPI(TFT_DC, TFT_CS, 18 /* SCK */, 23 /* MOSI */, GFX_NOT_DEFINED /* MISO */, VSPI /* spi_num */);
#elif defined(ESP32) && (CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3)
Arduino_DataBus *bus = new Arduino_ESP32SPI(TFT_DC, TFT_CS, 36 /* SCK */, 35 /* MOSI */, GFX_NOT_DEFINED /* MISO */, HSPI /* spi_num */);
#elif defined(ESP32) && (CONFIG_IDF_TARGET_ESP32C3)
Arduino_DataBus *bus = new Arduino_ESP32SPI(TFT_DC, TFT_CS, 4 /* SCK */, 6 /* MOSI */, GFX_NOT_DEFINED /* MISO */, FSPI /* spi_num */);
#elif defined(ESP8266)
Arduino_DataBus *bus = new Arduino_ESP8266SPI(TFT_DC, TFT_CS);
#else
// General hardware SPI
Arduino_DataBus *bus = new Arduino_HWSPI(TFT_DC, TFT_CS);
#endif`

[moononournation]

had you tried latest Arduino_GFX PDQGraphicstest example?

[dapostol73]

Yes, I have and it compiles with it, but from the code I assume this is because it uses Arduino_HWSPI which was what I was asking for clarification. So I guess I will just use that instead of Arduino_ESP32SPI

[moononournation]

The main feature of Arduino_ESP32SPI is support sending 9-bit data. If you do not require this feature, both class speed is similar.

[dapostol73]

INO Code Snippet

#include <Arduino_GFX_Library.h>

#define TFT_CS 15
#define TFT_DC 4
#define TFT_RST 2
#define TFT_SCK 14
#define TFT_MOSI 18

Arduino_DataBus *bus = new Arduino_ESP32SPI(TFT_DC, TFT_CS, TFT_SCK, TFT_MOSI);
Arduino_GFX *DisplayGFX = new Arduino_GC9A01(bus, TFT_RST, 0 /* rotation */, true /* IPS */);

void setup() {
  // put your setup code here, to run once:
}

void loop() {
  // put your main code here, to run repeatedly:
}