1 | #include "stm32f10x_lib.h" // STM32F10x Library Definitions
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2 | #include <stdio.h>
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3 | #include "STM32_Init.h" // STM32 Initialization
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4 | #include "stm32f10x_usart.h"
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5 |
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6 | //#define UART UART_3
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7 | typedef unsigned int Int32U; // Unsigned 32 bit quantity
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8 |
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9 | #define LOOP_DLY_100US 450
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10 |
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11 |
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12 | void Clk_Init (void)
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13 | {
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14 | // 1. Clocking the controller from internal HSI RC (8 MHz)
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15 | RCC_HSICmd(ENABLE);
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16 | // wait until the HSI is ready
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17 | while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);
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18 | RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
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19 | // 2. Enable ext. high frequency OSC
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20 | RCC_HSEConfig(RCC_HSE_ON);
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21 | // wait until the HSE is ready
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22 | while(RCC_GetFlagStatus(RCC_FLAG_HSERDY) == RESET);
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23 | // 3. Init PLL
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24 | RCC_PLLConfig(RCC_PLLSource_HSE_Div1,RCC_PLLMul_9); // 72MHz
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25 | RCC_PLLCmd(ENABLE);
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26 | // wait until the PLL is ready
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27 | while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
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28 | // 4. Set system clock dividers
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29 | RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5);
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30 | RCC_ADCCLKConfig(RCC_PCLK2_Div8);
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31 | RCC_PCLK2Config(RCC_HCLK_Div1);
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32 | RCC_PCLK1Config(RCC_HCLK_Div2);
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33 | RCC_HCLKConfig(RCC_SYSCLK_Div1);
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34 | #ifdef EMB_FLASH
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35 | // 5. Init Embedded Flash
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36 | // Zero wait state, if 0 < HCLK 24 MHz
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37 | // One wait state, if 24 MHz < HCLK 56 MHz
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38 | // Two wait states, if 56 MHz < HCLK 72 MHz
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39 | // Flash wait state
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40 | FLASH_SetLatency(FLASH_Latency_2);
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41 | // Half cycle access
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42 | FLASH_HalfCycleAccessCmd(FLASH_HalfCycleAccess_Disable);
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43 | // Prefetch buffer
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44 | FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
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45 | #endif // EMB_FLASH
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46 | // 5. Clock system from PLL
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47 | RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
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48 | }
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49 |
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50 | /*************************************************************************
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51 | * Function Name: Dly100us
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52 | * Parameters: Int32U Dly
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53 | *
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54 | * Return: none
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55 | *
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56 | * Description: Delay Dly * 100us
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57 | *
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58 | *************************************************************************/
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59 | void Dly100us(void *arg)
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60 | {
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61 | Int32U Dly = (Int32U)arg;
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62 | while(Dly--)
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63 | {
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64 | for(volatile int i = LOOP_DLY_100US; i; i--);
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65 | }
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66 | }
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67 |
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68 |
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69 | void UART_init()
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70 | {
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71 |
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72 | }
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73 | /*************************************************************************
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74 | * Function Name: main
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75 | * Parameters: none
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76 | *
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77 | * Return: none
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78 | *
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79 | * Description: main
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80 | *
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81 | *************************************************************************/
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82 | void main(void)
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83 | {
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84 | GPIO_InitTypeDef GPIO_InitStructure;
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85 | NVIC_InitTypeDef NVIC_InitStructure;
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86 | #ifdef DEBUG
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87 | debug();
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88 | #endif
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89 |
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90 | // Init clock system
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91 | Clk_Init();
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92 |
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93 | // NVIC init
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94 | #ifndef EMB_FLASH
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95 | /* Set the Vector Table base location at 0x20000000 */
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96 | NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
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97 | #else /* VECT_TAB_FLASH */
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98 | /* Set the Vector Table base location at 0x08000000 */
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99 | NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
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100 | #endif
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101 | NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
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102 |
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103 | // Enable timer counting
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104 | //TIM1_Cmd(ENABLE);
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105 |
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106 |
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107 | UART_init();
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108 |
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109 |
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110 | while(1)
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111 | {
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112 |
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113 |
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114 |
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115 | }
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116 | }
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117 | #ifdef DEBUG
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118 |
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119 | void assert_failed(u8* file, u32 line)
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120 | {
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121 | /* User can add his own implementation to report the file name and line number,
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122 | ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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123 |
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124 | /* Infinite loop */
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125 | while (1)
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126 | {
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127 | }
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128 | }
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129 | #endif
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