misc: add gpio_disable_pulls() to SD-Card SPI pins

elehobica · Sep 21, 2021 · 8ef76a6 · 8ef76a6
1 parent ec02706
commit 8ef76a6
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lib/fatfs/tf_card.c b/lib/fatfs/tf_card.c
@@ -103,23 +103,27 @@ void init_spi(void)
 	/* pull up of MISO is MUST (10Kohm external pull up is recommended) */
 	/* Set drive strength and slew rate if needed to meet wire condition */
 	gpio_init(PIN_SPI0_SCK);
+	gpio_disable_pulls(PIN_SPI0_SCK);
 	//gpio_pull_up(PIN_SPI0_SCK);
 	//gpio_set_drive_strength(PIN_SPI0_SCK, PADS_BANK0_GPIO0_DRIVE_VALUE_4MA); // 2mA, 4mA (default), 8mA, 12mA
 	//gpio_set_slew_rate(PIN_SPI0_SCK, 0); // 0: SLOW (default), 1: FAST
 	gpio_set_function(PIN_SPI0_SCK, GPIO_FUNC_SPI);
 
 	gpio_init(PIN_SPI0_MISO);
+	gpio_disable_pulls(PIN_SPI0_MISO);
 	//gpio_pull_up(PIN_SPI0_MISO);
 	//gpio_set_schmitt(PIN_SPI0_MISO, 1); // 0: Off, 1: On (default)
 	gpio_set_function(PIN_SPI0_MISO, GPIO_FUNC_SPI);
 
 	gpio_init(PIN_SPI0_MOSI);
+	gpio_disable_pulls(PIN_SPI0_MOSI);
 	//gpio_pull_up(PIN_SPI0_MOSI);
 	//gpio_set_drive_strength(PIN_SPI0_MOSI, PADS_BANK0_GPIO0_DRIVE_VALUE_4MA); // 2mA, 4mA (default), 8mA, 12mA
 	//gpio_set_slew_rate(PIN_SPI0_MOSI, 0); // 0: SLOW (default), 1: FAST
 	gpio_set_function(PIN_SPI0_MOSI, GPIO_FUNC_SPI);
 
 	gpio_init(PIN_SPI0_CS);
+	gpio_disable_pulls(PIN_SPI0_CS);
 	//gpio_pull_up(PIN_SPI0_CS);
 	//gpio_set_drive_strength(PIN_SPI0_CS, PADS_BANK0_GPIO0_DRIVE_VALUE_4MA); // 2mA, 4mA (default), 8mA, 12mA
 	//gpio_set_slew_rate(PIN_SPI0_CS, 0); // 0: SLOW (default), 1: FAST