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spi: update examples to use the new GDMA driver

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This commit is contained in:
Marius Vikhammer
2021-04-15 14:41:01 +08:00
parent 83445ba63e
commit 4de9cbcf0f
4 changed files with 8 additions and 20 deletions
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9
examples/peripherals/spi_master/lcd/main/spi_master_example_main.c
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@@ -30,7 +30,6 @@
#ifdef CONFIG_IDF_TARGET_ESP32
#define LCD_HOST HSPI_HOST
#define DMA_CHAN 2
#define PIN_NUM_MISO 25
#define PIN_NUM_MOSI 23
@@ -42,7 +41,6 @@
#define PIN_NUM_BCKL 5
#elif defined CONFIG_IDF_TARGET_ESP32S2
#define LCD_HOST SPI2_HOST
#define DMA_CHAN LCD_HOST
#define PIN_NUM_MISO 37
#define PIN_NUM_MOSI 35
@@ -54,7 +52,6 @@
#define PIN_NUM_BCKL 6
#elif defined CONFIG_IDF_TARGET_ESP32C3
#define LCD_HOST SPI2_HOST
#define DMA_CHAN LCD_HOST
#define PIN_NUM_MISO 2
#define PIN_NUM_MOSI 7
@@ -62,8 +59,8 @@
#define PIN_NUM_CS 10
#define PIN_NUM_DC 9
#define PIN_NUM_RST 18
#define PIN_NUM_BCKL 19
#define PIN_NUM_RST 4
#define PIN_NUM_BCKL 5
#endif
//To speed up transfers, every SPI transfer sends a bunch of lines. This define specifies how many. More means more memory use,
@@ -439,7 +436,7 @@ void app_main(void)
.pre_cb=lcd_spi_pre_transfer_callback, //Specify pre-transfer callback to handle D/C line
};
//Initialize the SPI bus
ret=spi_bus_initialize(LCD_HOST, &buscfg, DMA_CHAN);
ret=spi_bus_initialize(LCD_HOST, &buscfg, SPI_DMA_CH_AUTO);
ESP_ERROR_CHECK(ret);
//Attach the LCD to the SPI bus
ret=spi_bus_add_device(LCD_HOST, &devcfg, &spi);