uv-k5-firmware/driver/system.c
2023-08-12 20:01:34 +01:00

41 lines
1.3 KiB
C

/* Copyright 2023 Dual Tachyon
* https://github.com/DualTachyon
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "bsp/dp32g030/pmu.h"
#include "bsp/dp32g030/syscon.h"
#include "driver/system.h"
#include "driver/systick.h"
void SYSTEM_DelayMs(uint32_t Delay)
{
SYSTICK_DelayUs(Delay * 1000);
}
void SYSTEM_ConfigureClocks(void)
{
// Set source clock from external crystal
PMU_SRC_CFG = (PMU_SRC_CFG & ~(PMU_SRC_CFG_RCHF_SEL_MASK | PMU_SRC_CFG_RCHF_EN_MASK))
| PMU_SRC_CFG_RCHF_SEL_BITS_48MHZ
| PMU_SRC_CFG_RCHF_EN_BITS_ENABLE;
// Divide by 2
SYSCON_CLK_SEL = SYSCON_CLK_SEL_DIV_BITS_2;
// Disable division clock gate
SYSCON_DIV_CLK_GATE = (SYSCON_DIV_CLK_GATE & ~SYSCON_DIV_CLK_GATE_DIV_CLK_GATE_MASK) | SYSCON_DIV_CLK_GATE_DIV_CLK_GATE_BITS_DISABLE;
}