src/main/drivers/system_stm32f7xx.c

   1 /*
   2  * This file is part of Cleanflight.
   3  *
   4  * Cleanflight is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * Cleanflight is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <string.h>
  19 #include <stdbool.h>
  20 #include <stdint.h>
  21 #include <stdlib.h>
  22
  23 #include "platform.h"
  24
  25 #include "drivers/accgyro/accgyro_mpu.h"
  26 #include "drivers/exti.h"
  27 #include "drivers/nvic.h"
  28 #include "drivers/system.h"
  29
  30 void SystemClock_Config(void);
  31
  32 void enableGPIOPowerUsageAndNoiseReductions(void)
  33 {
  34
  35     // AHB1
  36     __HAL_RCC_BKPSRAM_CLK_ENABLE();
  37     __HAL_RCC_DTCMRAMEN_CLK_ENABLE();
  38     __HAL_RCC_DMA2_CLK_ENABLE();
  39     __HAL_RCC_USB_OTG_HS_CLK_ENABLE();
  40     __HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE();
  41
  42     //APB1
  43     __HAL_RCC_USART2_CLK_ENABLE();
  44     __HAL_RCC_USART3_CLK_ENABLE();
  45     __HAL_RCC_UART4_CLK_ENABLE();
  46     __HAL_RCC_UART5_CLK_ENABLE();
  47     __HAL_RCC_UART7_CLK_ENABLE();
  48     __HAL_RCC_UART8_CLK_ENABLE();
  49
  50     //APB2
  51     __HAL_RCC_USART1_CLK_ENABLE();
  52     __HAL_RCC_USART6_CLK_ENABLE();
  53     __HAL_RCC_SDMMC1_CLK_ENABLE();
  54 }
  55
  56 bool isMPUSoftReset(void)
  57 {
  58     if (RCC->CSR & RCC_CSR_SFTRSTF)
  59         return true;
  60     else
  61         return false;
  62 }
  63
  64 uint32_t systemBootloaderAddress(void)
  65 {
  66     return 0x1FF00000;
  67 }
  68
  69 void systemInit(void)
  70 {
  71     checkForBootLoaderRequest();
  72
  73     //Called by SystemInit from startup_stm32f7xx.s
  74     //SystemClock_Config();
  75
  76     // Configure NVIC preempt/priority groups
  77     HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITY_GROUPING);
  78
  79     // cache RCC->CSR value to use it in isMPUSoftreset() and others
  80     cachedRccCsrValue = RCC->CSR;
  81
  82     /* Accounts for OP Bootloader, set the Vector Table base address as specified in .ld file */
  83     //extern void *isr_vector_table_base;
  84     //NVIC_SetVectorTable((uint32_t)&isr_vector_table_base, 0x0);
  85     //__HAL_RCC_USB_OTG_FS_CLK_DISABLE;
  86
  87     //RCC_ClearFlag();
  88
  89     enableGPIOPowerUsageAndNoiseReductions();
  90
  91     // Init cycle counter
  92     cycleCounterInit();
  93
  94     // SysTick
  95     //SysTick_Config(SystemCoreClock / 1000);
  96     HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
  97
  98     HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
  99 }