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Merged
merged 2 commits into from
May 20, 2022
Merged

Improve Swan initialization #1722

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09ac0fb
Improve Swan initialization
zfields May 18, 2022
5643a1b
fix: astyle issue
fpistm May 20, 2022
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18 changes: 12 additions & 6 deletions variants/STM32L4xx/L4R5Z(G-I)Y_L4R9Z(G-I)Y_L4S5ZIY_L4S9ZIY/variant_SWAN_R5.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -120,19 +120,25 @@ extern "C" {

WEAK void initVariant(void)
{
/* Initialize the 3V3 discharge to be OFF and the output power to be ON */
__HAL_RCC_GPIOE_CLK_ENABLE();

GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();

/* Set the DISCHARGE pin and the USB_DETECT pin to FLOAT */
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Pin = GPIO_PIN_6;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_6, GPIO_PIN_SET);
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct); /* PE6 DISCHRG */
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); /* PC6 is USB_DETECT */

/* Turn on the 3V3 regulator */
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Pin = GPIO_PIN_4;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_4, GPIO_PIN_SET);

}

/**
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