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annotate main.c @ 10:0b75cff7c570

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Add _usleep16 - sleeps for cnt microseconds.
author Daniel O'Connor <darius@dons.net.au>
date Mon, 06 Feb 2012 23:54:36 +1030
parents 58d76cf522ff
children 093bc0c3b1cc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #include <ctype.h>
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2 #include <malloc.h>
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3 #include <stdio.h>
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4 #include <stdint.h>
3
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5 #include <time.h>
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6 #include <string.h>
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7 #include <sys/time.h>
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8 #include <stdlib.h>
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9
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10 #include "stm32f10x.h"
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11
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12 #include "comm.h"
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13 #include "delay.h"
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14 #include "flash.h"
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15 #include "hw.h"
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16 #include "lcd.h"
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17 #include "main.h"
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18 #include "touch.h"
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19
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20 typedef struct {
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21 char buf[40];
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22 volatile uint8_t state;
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23 uint8_t len;
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24 } consbuf_t;
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25
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26 void NVIC_Configuration(void);
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27
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28
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29 /* Called every 1 / TICK_FREQ */
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30 #define TICK_FREQ 10000
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31 RAMFUNC void
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32 SysTick_Handler(void) {
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33 static uint32_t tick = 0;
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34 static int led = 0;
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35
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36 tick++;
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37 if (tick % 10000 == 0) {
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38 led = !led;
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39 if (led)
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40 GPIO_SetBits(GPIOB, GPIO_Pin_5);
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41 else
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42 GPIO_ResetBits(GPIOB, GPIO_Pin_5);
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43 }
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44
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45 }
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46
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47 consbuf_t cmd;
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48
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49 RAMFUNC void
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50 USART1_IRQHandler(void) {
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51 char c;
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52 int i;
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53
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54 /* Recieved data */
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55 while (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) {
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56 c = USART_ReceiveData(USART1);
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57
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58 /* End of line? */
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59 if (c == '\n' || c == '\r') {
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60 cmd.buf[cmd.state] = '\0';
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61 fputs("\r\n", stdout);
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62 cmd.len = cmd.state;
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63 cmd.state = 255;
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64 continue;
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65 }
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66
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67 /* Ctrl-w / Ctrl-u */
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68 if (c == 0x17 || c == 0x15) {
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69 for (i = 0; i < cmd.state; i++)
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70 fputs("\010\040\010", stdout);
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71 cmd.state = 0;
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72 continue;
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73 }
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74
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75 /* Backspace/delete */
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76 if (c == 0x08 || c == 0x7f) {
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77 if (cmd.state > 0) {
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78 cmd.state--;
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79 fputs("\010\040\010", stdout);
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80 }
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81 continue;
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82 }
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83
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84 /* Anything unprintable just ignore it */
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85 if (!isprint(c))
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86 continue;
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87
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88 cmd.buf[cmd.state] = tolower(c);
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89
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90 /* Echo back to the user */
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91 comm_put(cmd.buf[cmd.state]);
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92
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93 cmd.state++;
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94 /* Over flow? */
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95 if (cmd.state == ((sizeof(cmd.buf) / sizeof(cmd.buf[0])) - 1)) {
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96 fputs("\r\nLine too long", stdout);
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97 cmd.state = 0;
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98 continue;
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99 }
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100 }
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101 }
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102
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103
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104 int
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105 main(void) {
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106 char buf[40];
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107 struct tm nowtm;
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108 time_t now;
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109
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110 cmd.state = cmd.len = 0;
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111
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112 /* Init hardware - configure IO ports and external peripherals */
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113 hw_init();
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114
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115 /* NVIC configuration */
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116 NVIC_Configuration();
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117
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118 /* Setup SysTick Timer rate, also enables Systick and Systick-Interrupt */
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119 if (SysTick_Config(SystemCoreClock / TICK_FREQ)) {
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120 /* Capture error */
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121 comm_puts("Can't setup SysTick\r\n");
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122 while (1)
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123 ;
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124 }
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125
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126 /* Set stdout to unbuffered */
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127 setvbuf(stdout, NULL, _IONBF, 0);
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128
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129 /* Say hello */
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130 fputs("\r\n\r\n\r\nHello world\r\n", stdout);
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131
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132 while (1) {
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133 fputs("> ", stdout);
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134
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135 while (cmd.state != 255)
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136 ;
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137
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138 if (cmd.len > 0) {
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139 if (!strncmp("gc", cmd.buf, 2)) {
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140 now = time(NULL);
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141 gmtime_r(&now, &nowtm);
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142 strftime(buf, sizeof(buf) - 1, "Time is %Y/%m/%d %H:%M:%S UTC", &nowtm);
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143 printf("Time is %s (%d)\r\n", buf, (int)now);
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144 } else if (!strncmp("sc ", cmd.buf, 3)) {
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145 struct timeval tv;
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parents: 2
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146 tv.tv_sec = atoi(cmd.buf + 3);
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147 tv.tv_usec = 0;
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148 settimeofday(&tv, NULL);
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149 } else if (!strncmp("read", cmd.buf, 4)) {
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150 printf("PB5 = %d\r\n", GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_15));
4
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parents: 3
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151 } else if (!strncmp("touch", cmd.buf, 5)) {
8
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152 uint16_t x, y, z1, z2;
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153 float t, t2;
4
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154 for (int i = 0; i < 10; i++) {
8
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155 tp_getcoords(&x, &y, &z1, &z2, &t, &t2);
4
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156 printf("X = %5d Y = %5d Z1 = %5d Z2 = %5d T = %7.2f T2 = %7.2f\r\n", x, y, z1, z2, t, t2);
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157 }
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158 } else if (!strncmp("fl", cmd.buf, 2)) {
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159 uint8_t status;
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160 char *flstattbl[] = {
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161 "BUSY",
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162 "WEL",
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163 "BP0",
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164 "BP1",
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165 "BP2",
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166 "BP3",
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167 "AAI",
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168 "BPL"
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169 };
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170
8
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171 printf("Flash ID = 0x%04hx (expect 0xbf41)\r\n", flashreadid());
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172 status = flashreadstatus();
4
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173
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174 fputs("Status = ", stdout);
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diff changeset
175 for (unsigned int i = 0; i < sizeof(flstattbl) / sizeof(flstattbl[0]); i++)
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parents: 3
diff changeset
176 if (status & 1 << i) {
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177 fputs(flstattbl[i], stdout);
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178 fputs(" ", stdout);
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179 }
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180 printf("(0x%02x)\r\n", status);
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diff changeset
181
8
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diff changeset
182 flashwritestatus(0x00);
4
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diff changeset
183
8
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diff changeset
184 status = flashreadstatus();
4
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diff changeset
185
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186 fputs("Status = ", stdout);
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diff changeset
187 for (unsigned int i = 0; i < sizeof(flstattbl) / sizeof(flstattbl[0]); i++)
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parents: 3
diff changeset
188 if (status & 1 << i) {
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189 fputs(flstattbl[i], stdout);
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190 fputs(" ", stdout);
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191 }
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parents: 3
diff changeset
192 printf("(0x%02x)\r\n", status);
5
efa2c22266e3 PWM control LED backlight.
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parents: 4
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193 } else if (!strncmp("pwm ", cmd.buf, 4)) {
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parents: 4
diff changeset
194 lcd_setpwm(atoi(cmd.buf + 4));
7
9404b9869c27 Make the LCD panel work (timings, GPIOE clock needs to be on, etc)
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parents: 5
diff changeset
195 } else if (!strncmp("timing", cmd.buf, 6)) {
9404b9869c27 Make the LCD panel work (timings, GPIOE clock needs to be on, etc)
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parents: 5
diff changeset
196 fputs("Timing..\r\n", stdout);
8
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parents: 7
diff changeset
197 delay(10000);
7
9404b9869c27 Make the LCD panel work (timings, GPIOE clock needs to be on, etc)
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parents: 5
diff changeset
198 fputs("Done\r\n", stdout);
8
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199 } else if (!strncmp("circ ", cmd.buf, 5)) {
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diff changeset
200 uint16_t x, y, r, c;
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diff changeset
201 char col;
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parents: 7
diff changeset
202
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parents: 7
diff changeset
203 if (sscanf(cmd.buf, "circ %hu %hu %hu %c", &x, &y, &r, &col) != 4) {
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diff changeset
204 printf("Unable to parse circ args\r\n");
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205 goto out;
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parents: 7
diff changeset
206 }
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parents: 7
diff changeset
207
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parents: 7
diff changeset
208 col = toupper(col);
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parents: 7
diff changeset
209 if (col == 'R')
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parents: 7
diff changeset
210 c = LCD_RED;
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parents: 7
diff changeset
211 else if (col == 'G')
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parents: 7
diff changeset
212 c = LCD_GREEN;
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parents: 7
diff changeset
213 else if (col == 'B')
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parents: 7
diff changeset
214 c = LCD_BLUE;
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parents: 7
diff changeset
215 else if (col == 'L')
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parents: 7
diff changeset
216 c = LCD_BLACK;
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parents: 7
diff changeset
217 else
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parents: 7
diff changeset
218 c = LCD_WHITE;
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parents: 7
diff changeset
219 lcd_circle(x, y, r, c);
3
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parents: 2
diff changeset
220 } else if (!strncmp("zz", cmd.buf, 2)) {
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Daniel O'Connor <darius@dons.net.au>
parents: 2
diff changeset
221 NVIC_SystemReset();
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Daniel O'Connor <darius@dons.net.au>
parents: 2
diff changeset
222 } else {
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Daniel O'Connor <darius@dons.net.au>
parents: 2
diff changeset
223 printf("Unknown command\r\n");
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Daniel O'Connor <darius@dons.net.au>
parents: 2
diff changeset
224 }
74e9b3baac1e Jumbo commit to make things work.
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parents: 2
diff changeset
225 }
8
58d76cf522ff Split out code into separate files.
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parents: 7
diff changeset
226 out:
0
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
227 cmd.state = 0;
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
228 }
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
229 }
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
230
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
231 /* Configure interrupt controller */
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parents:
diff changeset
232 #ifdef VECT_TAB_RAM
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parents:
diff changeset
233 /* vector-offset (TBLOFF) from bottom of SRAM. defined in linker script */
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parents:
diff changeset
234 extern uint32_t _isr_vectorsram_offs;
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
235 #else
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
236 extern uint32_t _isr_vectorsflash_offs;
2
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
237 #endif
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
238
0
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
239 void
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
240 NVIC_Configuration(void) {
2
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
241 NVIC_InitTypeDef NVIC_InitStructure;
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
242
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
243 #ifdef VECT_TAB_RAM
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Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
244 /* Set the Vector Table base location at 0x20000000+_isr_vectorsram_offs */
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
245 NVIC_SetVectorTable(NVIC_VectTab_RAM, (uint32_t)&_isr_vectorsram_offs);
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
246 #else
0
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
247 /* Set the Vector Table base location at 0x08000000+_isr_vectorsflash_offs */
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
248 NVIC_SetVectorTable(NVIC_VectTab_FLASH, (uint32_t)&_isr_vectorsflash_offs);
2
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
249 #endif
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
250
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
251 /* Enable the USART1 Interrupt */
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
252 NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
253 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
254 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
255 NVIC_Init(&NVIC_InitStructure);
0
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
256 }
2
274e01fa5a4c - Do console IO with RX IRQs.
Daniel O'Connor <darius@dons.net.au>
parents: 0
diff changeset
257