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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-08-27 Jiao first version
*/
#include "board.h"
FL_ErrorStatus FL_UART_GPIO_Init(UART_Type *UARTx)
{
FL_ErrorStatus status = FL_FAIL;
FL_GPIO_InitTypeDef GPIO_InitStruct;
if (UARTx == UART0)
{
GPIO_InitStruct.pin = FL_GPIO_PIN_13;
GPIO_InitStruct.mode = FL_GPIO_MODE_DIGITAL;
GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.pull = FL_DISABLE;
GPIO_InitStruct.remapPin = FL_DISABLE;
status = FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.pin = FL_GPIO_PIN_14;
GPIO_InitStruct.mode = FL_GPIO_MODE_DIGITAL;
GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.pull = FL_DISABLE;
GPIO_InitStruct.remapPin = FL_DISABLE;
status = FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
else if (UARTx == UART1)
{
GPIO_InitStruct.pin = FL_GPIO_PIN_13;
GPIO_InitStruct.mode = FL_GPIO_MODE_DIGITAL;
GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.pull = FL_DISABLE;
GPIO_InitStruct.remapPin = FL_DISABLE;
status = FL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.pin = FL_GPIO_PIN_14;
GPIO_InitStruct.mode = FL_GPIO_MODE_DIGITAL;
GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.pull = FL_DISABLE;
GPIO_InitStruct.remapPin = FL_DISABLE;
status = FL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
else if (UARTx == UART4)
{
GPIO_InitStruct.pin = FL_GPIO_PIN_0;
GPIO_InitStruct.mode = FL_GPIO_MODE_DIGITAL;
GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.pull = FL_DISABLE;
GPIO_InitStruct.remapPin = FL_DISABLE;
status = FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.pin = FL_GPIO_PIN_1;
GPIO_InitStruct.mode = FL_GPIO_MODE_DIGITAL;
GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.pull = FL_DISABLE;
GPIO_InitStruct.remapPin = FL_DISABLE;
status = FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
return status;
}
static void RCC_PLL_ConfigDomain_SYS(uint32_t Source, uint32_t PLL_R, uint32_t PLL_DB, uint32_t PLL_O)
{
MODIFY_REG(RCC->PLLCR, RCC_PLLCR_DB_Msk | RCC_PLLCR_REFPRSC_Msk | RCC_PLLCR_OSEL_Msk | RCC_PLLCR_INSEL_Msk,
(PLL_DB << RCC_PLLCR_DB_Pos) | PLL_R | PLL_O | Source);
}
static void RCHFInit(uint32_t clock)
{
switch (clock)
{
case FL_RCC_RCHF_FREQUENCY_8MHZ:
FL_RCC_RCHF_WriteTrimValue(RCHF8M_TRIM);
break;
case FL_RCC_RCHF_FREQUENCY_16MHZ:
FL_RCC_RCHF_WriteTrimValue(RCHF16M_TRIM);
break;
case FL_RCC_RCHF_FREQUENCY_24MHZ:
FL_RCC_RCHF_WriteTrimValue(RCHF24M_TRIM);
break;
default:
FL_RCC_RCHF_WriteTrimValue(RCHF8M_TRIM);
break;
}
FL_RCC_RCHF_SetFrequency(clock);
}
void SelRCHFToPLL(uint32_t rchf, uint32_t clock)
{
uint32_t div = FL_RCC_PLL_PSC_DIV8;
if (clock > 64)
{
return;
}
RCHFInit(rchf);
switch (rchf)
{
case FL_RCC_RCHF_FREQUENCY_16MHZ:
div = FL_RCC_PLL_PSC_DIV16;
break;
case FL_RCC_RCHF_FREQUENCY_24MHZ:
div = FL_RCC_PLL_PSC_DIV24;
break;
default:
break;
}
if (clock <= 24)
{
FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_0CYCLE);
}
else
{
if ((clock > 24) && (clock <= 48))
{
FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_1CYCLE);
}
else
{
FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_1CYCLE);
}
}
RCC_PLL_ConfigDomain_SYS(FL_RCC_PLL_CLK_SOURCE_RCHF, div, clock, FL_RCC_PLL_OUTPUT_X1);
FL_RCC_PLL_Enable();
while (FL_RCC_IsActiveFlag_PLLReady() != FL_SET);
FL_RCC_SetAHBPrescaler(FL_RCC_AHBCLK_PSC_DIV1);
FL_RCC_SetAPB1Prescaler(FL_RCC_APB1CLK_PSC_DIV1);
FL_RCC_SetAPB2Prescaler(FL_RCC_APB2CLK_PSC_DIV1);
FL_RCC_SetSystemClockSource(FL_RCC_SYSTEM_CLK_SOURCE_PLL);
}
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