GATE_USART3
.gate_id = GATE_USART3,
CFG_GATE_SETCLR(GATE_USART3, RCC_MP_APB1ENSETR, 15),
.gate_id = GATE_USART3,
.gate_id = GATE_USART3,
GATE_CFG(GATE_USART3, RCC_USART3CFGR, 1, 0),
.gate_id = GATE_USART3,
.gate_id = GATE_USART3,
GATE_CFG(GATE_USART3, RCC_USART3CFGR, 1, 0),