@@ -1,136 +1,136 | |||
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1 | 1 | /*------------------------------------------------------------------------------ |
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2 | 2 | -- This file is a part of the libuc, microcontroler library |
|
3 | 3 | -- Copyright (C) 2011, Alexis Jeandet |
|
4 | 4 | -- |
|
5 | 5 | -- This program is free software; you can redistribute it and/or modify |
|
6 | 6 | -- it under the terms of the GNU General Public License as published by |
|
7 | 7 | -- the Free Software Foundation; either version 3 of the License, or |
|
8 | 8 | -- (at your option) any later version. |
|
9 | 9 | -- |
|
10 | 10 | -- This program is distributed in the hope that it will be useful, |
|
11 | 11 | -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
12 | 12 | -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
13 | 13 | -- GNU General Public License for more details. |
|
14 | 14 | -- |
|
15 | 15 | -- You should have received a copy of the GNU General Public License |
|
16 | 16 | -- along with this program; if not, write to the Free Software |
|
17 | 17 | -- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
18 | 18 | ------------------------------------------------------------------------------- |
|
19 | 19 | -- Author : Alexis Jeandet |
|
20 | 20 | -- Mail : alexis.jeandet@gmail.com |
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21 | 21 | -------------------------------------------------------------------------------*/ |
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22 | 22 | #include "bsp.h" |
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23 | 23 | #include <streamdevices.h> |
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24 | 24 | #include <malloc.h> |
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25 | 25 | #include <gpio.h> |
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26 | 26 | #include <uart.h> |
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27 | 27 | #include <stdio.h> |
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28 | 28 | #include <i2c.h> |
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29 | 29 | |
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30 | 30 | uint32_t OSC0 =8000000; |
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31 | 31 | uint32_t INTOSC =16000000; |
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32 | 32 | uint32_t RTCOSC =32768; |
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33 | 33 | uint32_t currentCpuFreq=0; |
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34 | 34 | extern streamdevice* __opnfiles__[__MAX_OPENED_FILES__]; |
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35 | 35 | |
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36 | 36 | float VREF0 =(float)3.3; |
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37 | 37 | |
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38 | 38 | int bsp_init() |
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39 | 39 | { |
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40 | 40 | int i=0; |
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41 | 41 | for(i=0;i<32;i++) |
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42 | 42 | { |
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43 | 43 | __opnfiles__[i] = NULL; |
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44 | 44 | } |
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45 | 45 | bsp_GPIO_init(); |
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46 | 46 | bsp_uart_init(); |
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47 | 47 | bsp_iic_init(); |
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48 | 48 | printf("\r================================================================\n\r"); |
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49 | 49 | printf("================================================================\n\r"); |
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50 | 50 | printf(BSP); |
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51 | 51 | printf(" initialised\n\r"); |
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52 | 52 | printf("================================================================\n\r"); |
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53 | 53 | return 1; |
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54 | 54 | } |
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55 | 55 | |
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56 | 56 | void bsp_GPIO_init() |
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57 | 57 | { |
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58 | 58 | gpio_t gpio1 = gpioopen(PD12);//gpioopen(LED1); //PD9 D=> 0x0300 9 => 0x0009 |
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59 | 59 | gpio_t gpio2 = gpioopen(PD13);//gpioopen(LED2); |
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60 | 60 | gpio_t gpio3 = gpioopen(PD14);//gpioopen(LED2); |
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61 | 61 | gpio_t gpio4 = gpioopen(PD15);//gpioopen(LED2); |
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62 | 62 | gpiosetspeed(&gpio1,gpiohighspeed); |
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63 | 63 | gpiosetspeed(&gpio2,gpiohighspeed); |
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64 | 64 | gpiosetspeed(&gpio3,gpiohighspeed); |
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65 | 65 | gpiosetspeed(&gpio4,gpiohighspeed); |
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66 | 66 | gpiosetdir(&gpio1,gpiooutdir); |
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67 | 67 | gpiosetdir(&gpio3,gpiooutdir); |
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68 | 68 | gpiosetdir(&gpio2,gpiooutdir); |
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69 | 69 | gpiosetdir(&gpio4,gpiooutdir); |
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70 | 70 | } |
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71 | 71 | |
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72 | 72 | void bsp_uart_init() |
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73 | 73 | { |
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74 | 74 | if(__opnfiles__[1]==NULL) |
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75 | 75 | { |
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76 | 76 | uart_t* uart1 = (uart_t*)malloc(sizeof(uart_t)); |
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77 | 77 | streamdevice* fd1 = (streamdevice*)malloc(sizeof(streamdevice)); |
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78 | 78 | uartopenandconfig(2,uart1,uartparitynone | uart8bits | uartonestop,115200,PB10,PB11,-1,-1); |
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79 | 79 | uartmkstreamdev(uart1,fd1); |
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80 | 80 | __opnfiles__[1] = fd1; |
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81 | 81 | } |
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82 | 82 | else |
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83 | 83 | { |
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84 | 84 | uartopenandconfig(2,(uart_t*)__opnfiles__[1]->_stream,uartparitynone | uart8bits | uartonestop,115200,PB10,PB11,-1,-1); |
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85 | 85 | } |
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86 | 86 | } |
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87 | 87 | |
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88 | 88 | void bsp_spi_init() |
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89 | 89 | { |
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90 | 90 | |
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91 | 91 | } |
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92 | 92 | |
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93 | 93 | |
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94 | 94 | void bsp_iic_init() |
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95 | 95 | { |
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96 |
if(0==i2copenandconfig(i2c1,0, |
|
|
96 | if(0==i2copenandconfig(i2c1,0,400000,PB9,PB6))printf("I2C1 opened\n\r"); | |
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97 | 97 | i2cenable(i2c1); |
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98 | 98 | } |
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99 | 99 | |
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100 | 100 | void bsp_SD_init() |
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101 | 101 | { |
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102 | 102 | |
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103 | 103 | } |
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104 | 104 | |
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105 | 105 | void vs10XXclearXCS(){} |
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106 | 106 | void vs10XXsetXCS(){} |
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107 | 107 | int vs10XXDREQ() |
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108 | 108 | { |
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109 | 109 | return 1; |
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110 | 110 | } |
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111 | 111 | |
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112 | 112 | |
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113 | 113 | void bsppowersdcard(char onoff) //always ON |
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114 | 114 | { |
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115 | 115 | |
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116 | 116 | } |
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117 | 117 | |
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118 | 118 | char bspsdcardpresent() |
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119 | 119 | { |
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120 | 120 | return 0; |
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121 | 121 | } |
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122 | 122 | |
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123 | 123 | char bspsdcardwriteprotected() |
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124 | 124 | { |
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125 | 125 | return 0; |
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126 | 126 | } |
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127 | 127 | |
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128 | 128 | void bspsdcardselect(char YESNO) |
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129 | 129 | { |
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130 | 130 | |
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131 | 131 | } |
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132 | 132 | |
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133 | 133 | |
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134 | 134 | |
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135 | 135 | |
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136 | 136 |
@@ -1,41 +1,45 | |||
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1 | 1 | #include <stdio.h> |
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2 | 2 | #include <fat32.h> |
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3 | 3 | #include <gpio.h> |
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4 | 4 | #include <uart.h> |
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5 | 5 | #include <stm32f4xx.h> |
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6 | 6 | #include <bsp.h> |
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7 | 7 | #include <i2c.h> |
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8 | 8 | |
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9 | 9 | |
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10 | 10 | extern streamdevice* __opnfiles__[]; |
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11 | 11 | |
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12 | 12 | int main() |
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13 | 13 | { |
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14 | 14 | //gpioset(PSU_DISABLE); |
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15 | gpio_t dacRst=gpioopen(PD4); | |
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16 | gpiosetspeed(&dacRst,gpiohighspeed); | |
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17 | gpiosetdir(&dacRst,gpiooutdir); | |
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18 | gpioset(dacRst); | |
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15 | 19 | printf("i2C Control register 1 (I2C_CR1) = %x\n\r",I2C1->CR1); |
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16 | 20 | printf("i2C Control register 2 (I2C_CR2) = %x\n\r",I2C1->CR2); |
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17 | 21 | printf("i2C Status register 1 (I2C_SR1) = %x\n\r",I2C1->SR1); |
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18 | 22 | printf("i2C Status register 2 (I2C_SR2) = %x\n\r",I2C1->SR2); |
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19 | 23 | printf("i2C Clock control register (I2C_CCR) = %x\n\r",I2C1->CCR); |
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20 | 24 | while(1) |
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21 | 25 | { |
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22 | 26 | for(volatile int i=0;i<1024*2048;i++); |
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23 | 27 | gpioset(LED1); |
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24 | 28 | gpioclr(LED2); |
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25 | 29 | for(volatile int i=0;i<1024*2048;i++); |
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26 | 30 | gpioclr(LED1); |
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27 | 31 | gpioset(LED2); |
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28 |
i2cwrite(i2c1,0x4a,"test", |
|
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32 | i2cwrite(i2c1,0x4a,"test",1); | |
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29 | 33 | } |
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30 | 34 | printf("hello world\n\r"); |
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31 | 35 | return 0; |
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32 | 36 | } |
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33 | 37 | |
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34 | 38 | |
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35 | 39 | |
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36 | 40 | |
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37 | 41 | |
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38 | 42 | |
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39 | 43 | |
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40 | 44 | |
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41 | 45 |
@@ -1,71 +1,72 | |||
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1 | 1 | /*------------------------------------------------------------------------------ |
|
2 | 2 | -- This file is a part of the libuc, microcontroler library |
|
3 | 3 | -- Copyright (C) 2012, Alexis Jeandet |
|
4 | 4 | -- |
|
5 | 5 | -- This program is free software; you can redistribute it and/or modify |
|
6 | 6 | -- it under the terms of the GNU General Public License as published by |
|
7 | 7 | -- the Free Software Foundation; either version 3 of the License, or |
|
8 | 8 | -- (at your option) any later version. |
|
9 | 9 | -- |
|
10 | 10 | -- This program is distributed in the hope that it will be useful, |
|
11 | 11 | -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
12 | 12 | -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
13 | 13 | -- GNU General Public License for more details. |
|
14 | 14 | -- |
|
15 | 15 | -- You should have received a copy of the GNU General Public License |
|
16 | 16 | -- along with this program; if not, write to the Free Software |
|
17 | 17 | -- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
18 | 18 | ------------------------------------------------------------------------------- |
|
19 | 19 | -- Author : Alexis Jeandet |
|
20 | 20 | -- Mail : alexis.jeandet@gmail.com |
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21 | 21 | -------------------------------------------------------------------------------*/ |
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22 | 22 | #ifndef I2C_H |
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23 | 23 | #define I2C_H |
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24 | 24 | #include <stdint.h> |
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25 | 25 | #include <uhandle.h> |
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26 | 26 | #include <streamdevices.h> |
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27 | 27 | |
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28 | 28 | #ifdef __cplusplus |
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29 | 29 | extern "C" { |
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30 | 30 | #endif |
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31 | 31 | |
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32 | 32 | typedef int i2c_t; |
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33 | 33 | |
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34 | 34 | #define i2c1 0 |
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35 | 35 | #define i2c2 1 |
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36 | 36 | #define i2c3 2 |
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37 | 37 | #define i2c4 3 |
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38 | 38 | #define i2c5 4 |
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39 | 39 | #define i2c6 5 |
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40 | 40 | #define i2c7 6 |
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41 | 41 | #define i2c8 7 |
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42 | 42 | #define i2c9 8 |
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43 | 43 | |
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44 | 44 | extern i2c_t i2copen(int count); |
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45 | 45 | extern i2c_t i2copenandconfig(int count ,uint32_t cfg,uint32_t speed,uint32_t SDA,uint32_t SCL); |
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46 | 46 | extern int i2cclose(i2c_t dev); |
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47 | 47 | extern int i2csetpins(i2c_t dev,uint32_t SDA,uint32_t SCL); |
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48 | 48 | extern int i2cenable(i2c_t dev); |
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49 | 49 | extern int i2cdisable(i2c_t dev); |
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50 | 50 | //extern int i2csetconfig(i2c_t dev); |
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51 | 51 | extern int i2csetspeed(i2c_t dev,uint32_t speed); |
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52 | 52 | //extern int i2csetdatabits(i2c_t* dev,uartbits_t databits); |
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53 | 53 | extern int i2cwrite(i2c_t dev,char address,char* data,int count); |
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54 | 54 | extern int i2cread(i2c_t dev,char address,char* data,int count); |
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55 | ||
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55 | extern int i2cbusy(i2c_t dev); | |
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56 | extern int i2cStatusCheck(i2c_t dev,int32_t flagMask); | |
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56 | 57 | #ifdef __cplusplus |
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57 | 58 | } |
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58 | 59 | #endif |
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59 | 60 | #endif //I2C_H |
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60 | 61 | |
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61 | 62 | |
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62 | 63 | |
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63 | 64 | |
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64 | 65 | |
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65 | 66 | |
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66 | 67 | |
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67 | 68 | |
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68 | 69 | |
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69 | 70 | |
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70 | 71 | |
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71 | 72 |
@@ -1,254 +1,282 | |||
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1 | 1 | /*------------------------------------------------------------------------------ |
|
2 | 2 | -- This file is a part of the libuc, microcontroler library |
|
3 | 3 | -- Copyright (C) 2012, Alexis Jeandet |
|
4 | 4 | -- |
|
5 | 5 | -- This program is free software; you can redistribute it and/or modify |
|
6 | 6 | -- it under the terms of the GNU General Public License as published by |
|
7 | 7 | -- the Free Software Foundation; either version 3 of the License, or |
|
8 | 8 | -- (at your option) any later version. |
|
9 | 9 | -- |
|
10 | 10 | -- This program is distributed in the hope that it will be useful, |
|
11 | 11 | -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
12 | 12 | -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
13 | 13 | -- GNU General Public License for more details. |
|
14 | 14 | -- |
|
15 | 15 | -- You should have received a copy of the GNU General Public License |
|
16 | 16 | -- along with this program; if not, write to the Free Software |
|
17 | 17 | -- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
18 | 18 | ------------------------------------------------------------------------------- |
|
19 | 19 | -- Author : Alexis Jeandet |
|
20 | 20 | -- Mail : alexis.jeandet@gmail.com |
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21 | 21 | -------------------------------------------------------------------------------*/ |
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22 | 22 | |
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23 | 23 | #include <i2c.h> |
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24 | 24 | #include <stm32f4xx_usart.h> |
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25 | 25 | #include <stm32f4xx_rcc.h> |
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26 | 26 | #include <stm32f4xx_gpio.h> |
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27 | 27 | #include <gpio.h> |
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28 | 28 | #include <core.h> |
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29 | 29 | |
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30 | 30 | #define GPIOGETPORT(gpio) ((GPIO_TypeDef*)(((((uint32_t)gpio) & (uint32_t)0x0000FF00)*(uint32_t)4) + (uint32_t)GPIOA)) |
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31 | 31 | #define GPIOPORTNUM(gpio) (((uint32_t)(gpio) & (uint32_t)0x0000FF00)>>(uint32_t)8) |
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32 | 32 | |
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33 | 33 | |
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34 | 34 | I2C_TypeDef* _i2c_dev_table[3]={I2C1,I2C2,I2C3}; |
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35 | 35 | |
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36 | 36 | i2c_t i2copen(int count) |
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37 | 37 | { |
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38 | 38 | #define _INIT_DEV(_RCC_) \ |
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39 | 39 | RCC_APB1PeriphClockCmd(_RCC_, ENABLE); \ |
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40 | 40 | RCC_APB1PeriphResetCmd(_RCC_, ENABLE); \ |
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41 | 41 | RCC_APB1PeriphResetCmd(_RCC_, DISABLE); \ |
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42 | 42 | RCC_APB1PeriphClockCmd(_RCC_, ENABLE); |
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43 | 43 | |
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44 | 44 | switch(count) |
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45 | 45 | { |
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46 | 46 | case 0: |
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47 | 47 | _INIT_DEV(RCC_APB1Periph_I2C1); |
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48 | 48 | return (i2c_t) 0; |
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49 | 49 | break; |
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50 | 50 | case 1: |
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51 | 51 | _INIT_DEV(RCC_APB1Periph_I2C2); |
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52 | 52 | return (i2c_t) 1; |
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53 | 53 | break; |
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54 | 54 | case 2: |
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55 | 55 | _INIT_DEV(RCC_APB1Periph_I2C3); |
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56 | 56 | return (i2c_t) 2; |
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57 | 57 | break; |
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58 | 58 | default: |
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59 | 59 | break; |
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60 | 60 | } |
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61 | 61 | return -1; |
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62 | 62 | } |
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63 | 63 | |
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64 | 64 | i2c_t i2copenandconfig(int count,uint32_t cfg,uint32_t speed,uint32_t SDA,uint32_t SCL) |
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65 | 65 | { |
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66 | 66 | i2c_t dev = i2copen(count); |
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67 | 67 | if(dev!=-1) |
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68 | 68 | { |
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69 |
|
|
|
70 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
|
71 | _dev_->CR1 = (1<<15); | |
|
72 | _dev_->CR1 &=~(1<<15); | |
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73 | i2cdisable(count); | |
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69 | i2cclose(dev); | |
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74 | 70 | i2csetpins(dev,SDA,SCL); |
|
71 | i2copen(count); | |
|
72 | i2cenable(count); | |
|
73 | //I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
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75 | 74 | i2csetspeed(dev,speed); |
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76 | 75 | i2cenable(count); |
|
77 | _dev_->CR1|=1<<15; | |
|
78 | _dev_->CR1&=~(1<<15); | |
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79 | 76 | } |
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80 | 77 | return dev; |
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81 | 78 | } |
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82 | 79 | |
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83 | 80 | int i2cclose(i2c_t dev) |
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84 | 81 | { |
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85 | 82 | switch((int)dev) |
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86 | 83 | { |
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87 | 84 | case (int)0: |
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88 | 85 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, ENABLE); |
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89 | 86 | break; |
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90 | 87 | case (int)1: |
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91 | 88 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C2, ENABLE); |
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92 | 89 | break; |
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93 | 90 | case (int)2: |
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94 | 91 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C3, ENABLE); |
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95 | 92 | break; |
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96 | 93 | default: |
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97 | 94 | break; |
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98 | 95 | } |
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99 | 96 | return 1; |
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100 | 97 | } |
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101 | 98 | |
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102 | 99 | int i2csetpins(i2c_t dev, uint32_t SDA, uint32_t SCL) |
|
103 | 100 | { |
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104 | 101 | if((dev<3)&&(dev>=0)) |
|
105 | 102 | { |
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106 | 103 | gpio_t SDApin,SCLpin; |
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107 | 104 | SDApin = gpioopen(SDA); |
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108 | 105 | SCLpin = gpioopen(SCL); |
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109 | 106 | SDApin |= gpiolowspeed | gpioaf | gpioopendraintype | gpionopulltype; |
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110 | 107 | SCLpin |= gpiolowspeed | gpioaf | gpioopendraintype | gpionopulltype; |
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111 | 108 | gpiosetconfig(&SDApin); |
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112 | 109 | gpiosetconfig(&SCLpin); |
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113 | 110 | uint8_t gpioAFi2cx = GPIO_AF_I2C1; |
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114 | 111 | switch((int)dev) |
|
115 | 112 | { |
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116 | 113 | case 0: |
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117 | 114 | gpioAFi2cx = GPIO_AF_I2C1; |
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118 | 115 | break; |
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119 | 116 | case 1: |
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120 | 117 | gpioAFi2cx = GPIO_AF_I2C2; |
|
121 | 118 | break; |
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122 | 119 | case 2: |
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123 | 120 | gpioAFi2cx = GPIO_AF_I2C3; |
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124 | 121 | break; |
|
125 | 122 | default: |
|
126 | 123 | break; |
|
127 | 124 | } |
|
128 | 125 | GPIO_PinAFConfig(GPIOGETPORT(SDApin), (uint8_t)(SDApin & 0xF), gpioAFi2cx); |
|
129 | 126 | GPIO_PinAFConfig(GPIOGETPORT(SCLpin), (uint8_t)(SCLpin & 0xF), gpioAFi2cx); |
|
130 | 127 | return 0; |
|
131 | 128 | } |
|
132 | 129 | return -1; |
|
133 | 130 | } |
|
134 | 131 | |
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135 | 132 | int i2cenable(i2c_t dev) |
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136 | 133 | { |
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137 | 134 | if((dev<3)&&(dev>=0)) |
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138 | 135 | { |
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139 | 136 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
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140 | 137 | _dev_->CR1 |=1 ; |
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141 | 138 | return 0; |
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142 | 139 | } |
|
143 | 140 | return -1; |
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144 | 141 | } |
|
145 | 142 | |
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146 | 143 | int i2cdisable(i2c_t dev) |
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147 | 144 | { |
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148 | 145 | if((dev<3)&&(dev>=0)) |
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149 | 146 | { |
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150 | 147 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
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151 | 148 | _dev_->CR1 &= ~1; |
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152 | 149 | return 0; |
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153 | 150 | } |
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154 | 151 | return -1; |
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155 | 152 | } |
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156 | 153 | |
|
157 | 154 | |
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158 | 155 | int i2csetspeed(i2c_t dev,uint32_t speed) |
|
159 | 156 | { |
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160 | 157 | if((dev<3)&&(dev>=0)) |
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161 | 158 | { |
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162 | 159 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
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163 | 160 | int32_t APB1Freq=getAPB1Freq()/1000000; |
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164 | 161 | if((APB1Freq>1)&&(APB1Freq<43)) |
|
165 | 162 | { |
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166 | i2cdisable(dev); | |
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163 | ||
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167 | 164 | uint16_t tmpreg=_dev_->CR2; |
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168 | 165 | tmpreg &= ~(0x1f); |
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169 | 166 | tmpreg |= APB1Freq; |
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170 | 167 | _dev_->CR2=tmpreg; |
|
171 | tmpreg=_dev_->TRISE; | |
|
172 | tmpreg &= ~(0x3f); | |
|
173 | tmpreg |= APB1Freq+1; | |
|
174 | _dev_->TRISE = tmpreg; | |
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168 | i2cdisable(dev); | |
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175 | 169 | tmpreg=_dev_->CCR; |
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176 | 170 | APB1Freq=getAPB1Freq(); |
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177 | 171 | if(speed>100000) //100kHz= standard mode, 400kHz= fast mode |
|
178 | 172 | { |
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179 | 173 | if(speed<=400000) |
|
180 | 174 | { |
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181 | 175 | tmpreg |= 1<<15; |
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182 | 176 | tmpreg &= ~(1<<14); |
|
183 | 177 | tmpreg &= ~(0xfff); |
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184 | 178 | tmpreg |= 0xfff & (APB1Freq/(3*speed)); |
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185 | 179 | } |
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186 | 180 | } |
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187 | 181 | else |
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188 | 182 | { |
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189 | 183 | tmpreg &= ~(1<<15); |
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190 | 184 | tmpreg &= ~(0xfff); |
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191 | 185 | tmpreg |= 0xfff & (APB1Freq/(2*speed)); |
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192 | 186 | } |
|
193 | 187 | _dev_->CCR=tmpreg; |
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188 | tmpreg=_dev_->TRISE; | |
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189 | tmpreg &= ~(0x3f); | |
|
190 | tmpreg |= (APB1Freq/1000000)+1; | |
|
191 | _dev_->TRISE = tmpreg; | |
|
192 | i2cenable(dev); | |
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194 | 193 | return 0; |
|
195 | 194 | } |
|
196 | 195 | } |
|
197 | 196 | return -1; |
|
198 | 197 | } |
|
199 | 198 | |
|
199 | int i2cbusy(i2c_t dev) | |
|
200 | { | |
|
201 | if((dev<3)&&(dev>=0)) | |
|
202 | { | |
|
203 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
|
204 | if((_dev_->SR2 & 2) ==2) return 1; /* Dev is busy */ | |
|
205 | return 0; /* Dev isn't busy */ | |
|
206 | } | |
|
207 | return -1; /* Error, dev is out of range */ | |
|
208 | } | |
|
209 | ||
|
200 | 210 | int i2cwrite(i2c_t dev,char address,char* data,int count) |
|
201 | 211 | { |
|
202 | 212 | if((dev<3)&&(dev>=0)) |
|
203 | 213 | { |
|
204 | 214 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
|
215 | while(i2cbusy(dev)); | |
|
205 | 216 | _dev_->CR1 |= 1<<8; |
|
206 | while((_dev_->SR1&1)==0); | |
|
217 | while(!i2cStatusCheck(dev,((uint32_t)0x00030001))); | |
|
207 | 218 | _dev_->DR= address<<1; |
|
208 | while((_dev_->SR1 & (1<<3))==0); | |
|
219 | while(!i2cStatusCheck(dev, ((uint32_t)0x00070082))); | |
|
209 | 220 | address=_dev_->SR2; |
|
210 | 221 | for(int i=0;i<count;i++) |
|
211 | 222 | { |
|
212 | while((_dev_->SR1 & (1<<7))==0); | |
|
223 | while(!i2cStatusCheck(dev,((uint32_t)0x00070080))); | |
|
213 | 224 | _dev_->DR= data[i]; |
|
214 | 225 | } |
|
215 |
while(( |
|
|
216 |
while(( |
|
|
226 | while(!i2cStatusCheck(dev,1<<7)); | |
|
227 | while(!i2cStatusCheck(dev,1<<2)); | |
|
217 | 228 | _dev_->CR1 |= 1<<9; |
|
218 | 229 | return count; |
|
219 | 230 | } |
|
220 | 231 | return -1; |
|
221 | 232 | } |
|
222 | 233 | |
|
223 | 234 | int i2cread(i2c_t dev,char address,char* data,int count) |
|
224 | 235 | { |
|
225 | 236 | if((dev<3)&&(dev>=0)) |
|
226 | 237 | { |
|
238 | while(i2cbusy(dev)); | |
|
227 | 239 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
|
228 | 240 | _dev_->CR1 |= (1<<8) | (1<<10); |
|
229 | 241 | if(count==1) |
|
230 | 242 | { |
|
231 | 243 | _dev_->CR1 &= ~(1<<10); |
|
232 | 244 | } |
|
233 | while((_dev_->SR1&1)==0); | |
|
245 | while(!i2cStatusCheck(dev,0x00030001)); | |
|
234 | 246 | _dev_->DR= (address<<1) + 1; |
|
235 | while((_dev_->SR1 & (1<<3))==0); | |
|
247 | while(!i2cStatusCheck(dev, ((uint32_t)0x00070082))); | |
|
236 | 248 | address=_dev_->SR2; |
|
237 | 249 | for(int i=0;i<count-1;i++) |
|
238 | 250 | { |
|
239 | 251 | while((_dev_->SR1 & (1<<6))==0); |
|
240 | 252 | data[i]=_dev_->DR; |
|
241 | 253 | } |
|
242 | 254 | _dev_->CR1 &= ~(1<<10); |
|
243 | 255 | _dev_->CR1 |= 1<<9; |
|
244 | 256 | while((_dev_->SR1 & (1<<6))==0); |
|
245 | 257 | data[count-1]=_dev_->DR; |
|
246 | 258 | return count; |
|
247 | 259 | } |
|
248 | 260 | return -1; |
|
249 | 261 | } |
|
250 | 262 | |
|
251 | 263 | |
|
264 | int i2cStatusCheck(i2c_t dev,int32_t flagMask) | |
|
265 | { | |
|
266 | int32_t flag; | |
|
267 | __asm__("nop"); | |
|
268 | __asm__("nop"); | |
|
269 | __asm__("nop"); | |
|
270 | __asm__("nop"); | |
|
271 | if((dev<3)&&(dev>=0)) | |
|
272 | { | |
|
273 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
|
274 | flag= _dev_->SR1 + (_dev_->SR2<<16); | |
|
275 | if(flagMask==(flag & flagMask)) | |
|
276 | return 1; | |
|
277 | return 0; | |
|
278 | } | |
|
279 | return -1; | |
|
280 | } | |
|
252 | 281 | |
|
253 | 282 | |
|
254 |
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