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embed: sdcard investigation

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Pavol Rusnak 2018-07-20 14:23:13 +02:00
parent 08d8cf6a25
commit c1209dcc17
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GPG Key ID: 91F3B339B9A02A3D
1 changed files with 16 additions and 2 deletions
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18
embed/trezorhal/sdcard.c
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@ -60,13 +60,27 @@ static inline void sdcard_default_pin_state(void) {
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_12, GPIO_PIN_RESET); // SD_CLK/PC12
HAL_GPIO_WritePin(GPIOD, GPIO_PIN_2, GPIO_PIN_RESET); // SD_CMD/PD2
// set above pins to OUTPUT / NOPULL
GPIO_InitTypeDef GPIO_InitStructure;
// configure the SD card circuitry on/off pin
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStructure.Pin = GPIO_PIN_0 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12;
GPIO_InitStructure.Pin = GPIO_PIN_0;
HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
// configure SD GPIO
#if 1
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_LOW;
#else
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_PULLUP;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Alternate = GPIO_AF12_SDIO;
#endif
GPIO_InitStructure.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12;
HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.Pin = GPIO_PIN_2;
HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);