Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
LPC824/main.cpp@11:0d8359a6e2c2, 2014-12-04 (annotated)
- Committer:
- Kazuki Yamamoto
- Date:
- Thu Dec 04 19:46:23 2014 +0900
- Revision:
- 11:0d8359a6e2c2
- Parent:
- 9:844e301ab0fd
- Child:
- 12:db621ae6a076
[ LPC824 ] R and W commands implemented
not tested
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| Kazuki Yamamoto |
9:844e301ab0fd | 1 | /** uart_i2c_conv for LPC824 |
| Kazuki Yamamoto |
9:844e301ab0fd | 2 | */ |
| Kazuki Yamamoto |
9:844e301ab0fd | 3 | |
| Kazuki Yamamoto |
5:07f7000ec747 | 4 | #include "mbed.h" |
| Kazuki Yamamoto |
5:07f7000ec747 | 5 | |
| Kazuki Yamamoto |
5:07f7000ec747 | 6 | Serial pc(USBTX,USBRX); |
| Kazuki Yamamoto |
9:844e301ab0fd | 7 | I2C dev1(I2C_SDA, I2C_SCL);//11,10 hard coded |
| Kazuki Yamamoto |
9:844e301ab0fd | 8 | I2C dev2(P0_6, P0_14);//6,14 |
| Kazuki Yamamoto |
9:844e301ab0fd | 9 | I2C dev3(P0_23, P0_22);//23,22 |
| Kazuki Yamamoto |
9:844e301ab0fd | 10 | I2C dev4(P0_21, P0_20);//21,20 |
| Kazuki Yamamoto |
9:844e301ab0fd | 11 | |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 12 | /* |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 13 | DigitalInOut _GPIO0(D0); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 14 | DigitalInOut _GPIO1(D1); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 15 | DigitalInOut _GPIO2(D2); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 16 | DigitalInOut _GPIO3(D3); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 17 | DigitalInOut _GPIO4(D4); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 18 | DigitalInOut _GPIO5(D5); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 19 | DigitalInOut _GPIO6(D6); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 20 | DigitalInOut _GPIO7(D7); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 21 | */ |
| Kazuki Yamamoto |
5:07f7000ec747 | 22 | |
| Kazuki Yamamoto |
5:07f7000ec747 | 23 | //Table 3. ASCII commands supported by SC18IM700 |
| Kazuki Yamamoto |
5:07f7000ec747 | 24 | //ASCII command Hex value Command function |
| Kazuki Yamamoto |
5:07f7000ec747 | 25 | //[X] S 0x53 I2C-bus START |
| Kazuki Yamamoto |
5:07f7000ec747 | 26 | //[X] P 0x50 I2C-bus STOP |
| Kazuki Yamamoto |
9:844e301ab0fd | 27 | //[?] R 0x52 read SC18IM700 internal register |
| Kazuki Yamamoto |
9:844e301ab0fd | 28 | //[?] W 0x57 write to SC18IM700 internal register |
| Kazuki Yamamoto |
9:844e301ab0fd | 29 | //[?] I 0x49 read GPIO port |
| Kazuki Yamamoto |
9:844e301ab0fd | 30 | //[?] O 0x4F write to GPIO port |
| Kazuki Yamamoto |
5:07f7000ec747 | 31 | //[_] Z 0x5A power down |
| Kazuki Yamamoto |
5:07f7000ec747 | 32 | //[X] C 0x43 change channel |
| Kazuki Yamamoto |
9:844e301ab0fd | 33 | //[_] E 0x45 enable chip |
| Kazuki Yamamoto |
9:844e301ab0fd | 34 | //[_] V 0x__ enable VDDIO output to chip |
| Kazuki Yamamoto |
5:07f7000ec747 | 35 | |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 36 | //"C0P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 37 | //"C1P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 38 | //"C2P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 39 | //"C3P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 40 | //"S| 0x_8 _0| 0x_0 _4| 0x_D _E _A _D _B _E _A _F| P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 41 | //"S| 0x_8 _0| 0x_0 _4| 0x_D _E _A _D _B _E _A _F| S| 0x_8 _1| 0x_0 _4| P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 42 | //"S| 0x_8 _1| 0x_0 _4| P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 43 | //"R| '0'| P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 44 | //"R| '0'| '1'| ...| P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 45 | //"W| '0' 0x_a _a| P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 46 | //"W| '0' 0x_a _a| '1' 0x_b _b| ...| P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 47 | //"I| P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 48 | //"O| 0x_a _a| P" |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 49 | |
| Kazuki Yamamoto |
5:07f7000ec747 | 50 | int main() |
| Kazuki Yamamoto |
5:07f7000ec747 | 51 | { |
| Kazuki Yamamoto |
5:07f7000ec747 | 52 | I2C* dev=&dev1; |
| Kazuki Yamamoto |
5:07f7000ec747 | 53 | pc.baud(115200); |
| Kazuki Yamamoto |
9:844e301ab0fd | 54 | |
| Kazuki Yamamoto |
9:844e301ab0fd | 55 | LPC_IOCON->PIO0_11 &= ~(0x02<<8); |
| Kazuki Yamamoto |
9:844e301ab0fd | 56 | LPC_IOCON->PIO0_11 |= (0x02<<8); |
| Kazuki Yamamoto |
9:844e301ab0fd | 57 | LPC_IOCON->PIO0_10 &= ~(0x02<<8); |
| Kazuki Yamamoto |
9:844e301ab0fd | 58 | LPC_IOCON->PIO0_10 |= (0x02<<8); |
| Kazuki Yamamoto |
5:07f7000ec747 | 59 | |
| Kazuki Yamamoto |
9:844e301ab0fd | 60 | bool s = false; |
| Kazuki Yamamoto |
9:844e301ab0fd | 61 | dev1.frequency(800000);//800k not work at 1M? too large pullup? |
| Kazuki Yamamoto |
9:844e301ab0fd | 62 | dev2.frequency(400000);//400k |
| Kazuki Yamamoto |
9:844e301ab0fd | 63 | dev3.frequency(400000);//400k |
| Kazuki Yamamoto |
9:844e301ab0fd | 64 | dev4.frequency(400000);//400k |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 65 | /* |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 66 | DigitalInOut* gpio[]={ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 67 | &_GPIO0, |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 68 | &_GPIO1, |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 69 | &_GPIO2, |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 70 | &_GPIO3, |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 71 | &_GPIO4, |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 72 | &_GPIO5, |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 73 | &_GPIO6, |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 74 | &_GPIO7, |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 75 | }; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 76 | */ |
| Kazuki Yamamoto |
5:07f7000ec747 | 77 | int ack=0; |
| Kazuki Yamamoto |
5:07f7000ec747 | 78 | int plength=0; |
| Kazuki Yamamoto |
5:07f7000ec747 | 79 | char recieve[256]; |
| Kazuki Yamamoto |
9:844e301ab0fd | 80 | char send[256]; |
| Kazuki Yamamoto |
5:07f7000ec747 | 81 | char read=0; |
| Kazuki Yamamoto |
9:844e301ab0fd | 82 | int address=0; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 83 | int data=0; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 84 | int _data=0; |
| Kazuki Yamamoto |
9:844e301ab0fd | 85 | int length=0; |
| Kazuki Yamamoto |
9:844e301ab0fd | 86 | int channel=0; |
| Kazuki Yamamoto |
9:844e301ab0fd | 87 | bool CE=false; |
| Kazuki Yamamoto |
9:844e301ab0fd | 88 | enum channel_e { |
| Kazuki Yamamoto |
9:844e301ab0fd | 89 | CH0 = '0', |
| Kazuki Yamamoto |
9:844e301ab0fd | 90 | CH1 = '1', |
| Kazuki Yamamoto |
9:844e301ab0fd | 91 | CH2 = '2', |
| Kazuki Yamamoto |
9:844e301ab0fd | 92 | CH3 = '3', |
| Kazuki Yamamoto |
5:07f7000ec747 | 93 | }; |
| Kazuki Yamamoto |
9:844e301ab0fd | 94 | enum register_e { |
| Kazuki Yamamoto |
9:844e301ab0fd | 95 | CHIP_ID = '0' |
| Kazuki Yamamoto |
9:844e301ab0fd | 96 | GPIO_STAT = '1', |
| Kazuki Yamamoto |
9:844e301ab0fd | 97 | GPIO_CONF = '2', |
| Kazuki Yamamoto |
9:844e301ab0fd | 98 | }; |
| Kazuki Yamamoto |
9:844e301ab0fd | 99 | enum chipID_e { |
| Kazuki Yamamoto |
9:844e301ab0fd | 100 | ID_LPC824 = '0', |
| Kazuki Yamamoto |
9:844e301ab0fd | 101 | ID_LPC1768 = '1', |
| Kazuki Yamamoto |
9:844e301ab0fd | 102 | ID_LPC11UXX = '2', |
| Kazuki Yamamoto |
9:844e301ab0fd | 103 | }; |
| Kazuki Yamamoto |
9:844e301ab0fd | 104 | uint8_t chip_id=ID_LPC824; |
| Kazuki Yamamoto |
9:844e301ab0fd | 105 | uint8_t registers[]={ |
| Kazuki Yamamoto |
9:844e301ab0fd | 106 | chip_id, |
| Kazuki Yamamoto |
9:844e301ab0fd | 107 | 0b00000000, |
| Kazuki Yamamoto |
9:844e301ab0fd | 108 | 0b00000000, |
| Kazuki Yamamoto |
9:844e301ab0fd | 109 | }; |
| Kazuki Yamamoto |
9:844e301ab0fd | 110 | |
| Kazuki Yamamoto |
5:07f7000ec747 | 111 | int i=0; |
| Kazuki Yamamoto |
5:07f7000ec747 | 112 | while(1) { |
| Kazuki Yamamoto |
5:07f7000ec747 | 113 | while(true) { |
| Kazuki Yamamoto |
5:07f7000ec747 | 114 | read=pc.getc(); |
| Kazuki Yamamoto |
5:07f7000ec747 | 115 | recieve[i]=read; |
| Kazuki Yamamoto |
5:07f7000ec747 | 116 | i++; |
| Kazuki Yamamoto |
5:07f7000ec747 | 117 | if(read == 'P') { |
| Kazuki Yamamoto |
5:07f7000ec747 | 118 | plength=i; |
| Kazuki Yamamoto |
5:07f7000ec747 | 119 | break; |
| Kazuki Yamamoto |
5:07f7000ec747 | 120 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 121 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 122 | i=0; |
| Kazuki Yamamoto |
9:844e301ab0fd | 123 | while(i < plength) { |
| Kazuki Yamamoto |
5:07f7000ec747 | 124 | switch(recieve[i]) { |
| Kazuki Yamamoto |
5:07f7000ec747 | 125 | case 'C': |
| Kazuki Yamamoto |
5:07f7000ec747 | 126 | { |
| Kazuki Yamamoto |
5:07f7000ec747 | 127 | channel=recieve[i+1]; |
| Kazuki Yamamoto |
5:07f7000ec747 | 128 | switch(channel) { |
| Kazuki Yamamoto |
9:844e301ab0fd | 129 | case CH0: |
| Kazuki Yamamoto |
5:07f7000ec747 | 130 | { |
| Kazuki Yamamoto |
5:07f7000ec747 | 131 | channel='0'; |
| Kazuki Yamamoto |
5:07f7000ec747 | 132 | dev=&dev1; |
| Kazuki Yamamoto |
5:07f7000ec747 | 133 | break; |
| Kazuki Yamamoto |
5:07f7000ec747 | 134 | } |
| Kazuki Yamamoto |
9:844e301ab0fd | 135 | case CH1: |
| Kazuki Yamamoto |
5:07f7000ec747 | 136 | { |
| Kazuki Yamamoto |
5:07f7000ec747 | 137 | channel='1'; |
| Kazuki Yamamoto |
5:07f7000ec747 | 138 | dev=&dev2; |
| Kazuki Yamamoto |
5:07f7000ec747 | 139 | break; |
| Kazuki Yamamoto |
5:07f7000ec747 | 140 | } |
| Kazuki Yamamoto |
9:844e301ab0fd | 141 | case CH2: |
| Kazuki Yamamoto |
5:07f7000ec747 | 142 | { |
| Kazuki Yamamoto |
5:07f7000ec747 | 143 | channel='2'; |
| Kazuki Yamamoto |
5:07f7000ec747 | 144 | dev=&dev3; |
| Kazuki Yamamoto |
5:07f7000ec747 | 145 | break; |
| Kazuki Yamamoto |
5:07f7000ec747 | 146 | } |
| Kazuki Yamamoto |
9:844e301ab0fd | 147 | case CH3: |
| Kazuki Yamamoto |
5:07f7000ec747 | 148 | { |
| Kazuki Yamamoto |
5:07f7000ec747 | 149 | channel='3'; |
| Kazuki Yamamoto |
5:07f7000ec747 | 150 | dev=&dev4; |
| Kazuki Yamamoto |
5:07f7000ec747 | 151 | break; |
| Kazuki Yamamoto |
5:07f7000ec747 | 152 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 153 | default: |
| Kazuki Yamamoto |
5:07f7000ec747 | 154 | { |
| Kazuki Yamamoto |
5:07f7000ec747 | 155 | channel='0'; |
| Kazuki Yamamoto |
5:07f7000ec747 | 156 | dev=&dev1; |
| Kazuki Yamamoto |
5:07f7000ec747 | 157 | break; |
| Kazuki Yamamoto |
5:07f7000ec747 | 158 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 159 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 160 | i+=(2); |
| Kazuki Yamamoto |
5:07f7000ec747 | 161 | break; |
| Kazuki Yamamoto |
5:07f7000ec747 | 162 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 163 | case 'S': |
| Kazuki Yamamoto |
5:07f7000ec747 | 164 | { |
| Kazuki Yamamoto |
9:844e301ab0fd | 165 | s = true; |
| Kazuki Yamamoto |
9:844e301ab0fd | 166 | ack = plength - 2 - (i+1) + (recieve[i+2] & 0x01); |
| Kazuki Yamamoto |
9:844e301ab0fd | 167 | if( ack >= 4){ //valid packet |
| Kazuki Yamamoto |
9:844e301ab0fd | 168 | address = 0xff & (recieve[i+1] << 4 | (recieve[i+2] & 0x0F)); |
| Kazuki Yamamoto |
9:844e301ab0fd | 169 | length = 0xff & (recieve[i+3] << 4 | (recieve[i+4] & 0x0F)); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 170 | /* hidden |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 171 | dev->start(); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 172 | ack=dev->write(address); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 173 | */ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 174 | if( (address&0x01)) {//read |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 175 | dev->read(address, send, length, false); //added |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 176 | s=false; //added |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 177 | /* hidden |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 178 | for(int j=0; j<length; j++) { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 179 | send[j] = dev->read(1); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 180 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 181 | */ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 182 | i+=(5); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 183 | } else {//write |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 184 | for(int j=0; j < (length * 2); j+=2) { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 185 | ack = dev->write( 0xff&(recieve[5+j] << 4 | (recieve[6+j] & 0x0F)) ); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 186 | *(send+(j/2)) = ack; //added |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 187 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 188 | dev->write(address, send, length, true); //added |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 189 | i+=(5 + length * 2); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 190 | length=0; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 191 | } |
| Kazuki Yamamoto |
9:844e301ab0fd | 192 | }else{ |
| Kazuki Yamamoto |
9:844e301ab0fd | 193 | pc.printf("bad packet! %d, %d, %02X, %d\n\r",plength,i,recieve[(i+2)]&0x0F,ack); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 194 | i = plength; |
| Kazuki Yamamoto |
5:07f7000ec747 | 195 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 196 | break; |
| Kazuki Yamamoto |
5:07f7000ec747 | 197 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 198 | case 'P': |
| Kazuki Yamamoto |
9:844e301ab0fd | 199 | { |
| Kazuki Yamamoto |
5:07f7000ec747 | 200 | if(s){ |
| Kazuki Yamamoto |
5:07f7000ec747 | 201 | dev->stop(); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 202 | s = false; |
| Kazuki Yamamoto |
5:07f7000ec747 | 203 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 204 | i = plength; |
| Kazuki Yamamoto |
5:07f7000ec747 | 205 | for(int j=0; j<length; j++) { |
| Kazuki Yamamoto |
5:07f7000ec747 | 206 | pc.printf("%02X,",send[j]); |
| Kazuki Yamamoto |
5:07f7000ec747 | 207 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 208 | pc.printf("ok\n\r"); |
| Kazuki Yamamoto |
5:07f7000ec747 | 209 | break; |
| Kazuki Yamamoto |
9:844e301ab0fd | 210 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 211 | case 'R': |
| Kazuki Yamamoto |
9:844e301ab0fd | 212 | { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 213 | length = plength - 2; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 214 | for(int j=0; j<length; j++){ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 215 | address = recieve[1+j]; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 216 | switch(address){ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 217 | case CHIP_ID: |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 218 | { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 219 | *(send+j) = registers[CHIP_ID]; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 220 | break; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 221 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 222 | case GPIO_STAT: |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 223 | { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 224 | *(send+j) = registers[GPIO_STAT]; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 225 | break; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 226 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 227 | case GPIO_CONF: |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 228 | { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 229 | *(send+j) = registers[GPIO_CONF]; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 230 | break; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 231 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 232 | default: |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 233 | { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 234 | break; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 235 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 236 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 237 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 238 | i += length; |
| Kazuki Yamamoto |
5:07f7000ec747 | 239 | pc.printf("command R is not implemented\n\r"); |
| Kazuki Yamamoto |
5:07f7000ec747 | 240 | break; |
| Kazuki Yamamoto |
9:844e301ab0fd | 241 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 242 | case 'W': |
| Kazuki Yamamoto |
9:844e301ab0fd | 243 | { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 244 | length = plength - 2; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 245 | if(length < 3){ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 246 | pc.printf("bad packet! %d\n\r",length); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 247 | i = plength + 1; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 248 | }else{ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 249 | for(int j=0; j<length; j+=3){ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 250 | address = recieve[i+1+j]; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 251 | data = 0xff & (recieve[i+1+j] << 4 | (recieve[i+2+j] & 0x0F)); |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 252 | switch(address){ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 253 | case CHIP_ID: |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 254 | { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 255 | //READ ONLY: do nothing |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 256 | *(send+j) = registers[CHIP_ID]; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 257 | break; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 258 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 259 | case GPIO_STAT: |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 260 | { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 261 | for(int k=1; k<256; k<<=1){ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 262 | if(registers[GPIO_CONF] & k){ //output |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 263 | (data&k) ? _data|=k : _data&=~k; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 264 | }else{ |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 265 | ; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 266 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 267 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 268 | registers[GPIO_STAT] = _data; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 269 | *(send+j) = registers[GPIO_STAT]; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 270 | break; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 271 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 272 | case GPIO_CONF: |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 273 | { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 274 | registers[GPIO_CONF] = data; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 275 | *(send+j) = registers[GPIO_CONF]; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 276 | break; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 277 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 278 | default: |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 279 | { |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 280 | break; |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 281 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 282 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 283 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 284 | } |
| Kazuki Yamamoto |
11:0d8359a6e2c2 | 285 | i += length; |
| Kazuki Yamamoto |
5:07f7000ec747 | 286 | pc.printf("command W is not implemented\n\r"); |
| Kazuki Yamamoto |
9:844e301ab0fd | 287 | break; |
| Kazuki Yamamoto |
9:844e301ab0fd | 288 | } |
| Kazuki Yamamoto |
9:844e301ab0fd | 289 | case 'I': |
| Kazuki Yamamoto |
9:844e301ab0fd | 290 | { |
| Kazuki Yamamoto |
9:844e301ab0fd | 291 | pc.printf("command I is not implemented\n\r"); |
| Kazuki Yamamoto |
5:07f7000ec747 | 292 | i=plength; |
| Kazuki Yamamoto |
5:07f7000ec747 | 293 | break; |
| Kazuki Yamamoto |
9:844e301ab0fd | 294 | } |
| Kazuki Yamamoto |
9:844e301ab0fd | 295 | case 'O': |
| Kazuki Yamamoto |
9:844e301ab0fd | 296 | { |
| Kazuki Yamamoto |
9:844e301ab0fd | 297 | pc.printf("command O is not implemented\n\r"); |
| Kazuki Yamamoto |
5:07f7000ec747 | 298 | i=plength; |
| Kazuki Yamamoto |
5:07f7000ec747 | 299 | break; |
| Kazuki Yamamoto |
9:844e301ab0fd | 300 | } |
| Kazuki Yamamoto |
9:844e301ab0fd | 301 | case 'Z': |
| Kazuki Yamamoto |
9:844e301ab0fd | 302 | { |
| Kazuki Yamamoto |
9:844e301ab0fd | 303 | pc.printf("command Z is not implemented\n\r"); |
| Kazuki Yamamoto |
5:07f7000ec747 | 304 | i=plength; |
| Kazuki Yamamoto |
5:07f7000ec747 | 305 | break; |
| Kazuki Yamamoto |
9:844e301ab0fd | 306 | } |
| Kazuki Yamamoto |
9:844e301ab0fd | 307 | case 'E': |
| Kazuki Yamamoto |
9:844e301ab0fd | 308 | { |
| Kazuki Yamamoto |
9:844e301ab0fd | 309 | pc.printf("command E is not implemented\n\r"); |
| Kazuki Yamamoto |
5:07f7000ec747 | 310 | i=plength; |
| Kazuki Yamamoto |
5:07f7000ec747 | 311 | break; |
| Kazuki Yamamoto |
9:844e301ab0fd | 312 | } |
| Kazuki Yamamoto |
9:844e301ab0fd | 313 | case 'V': |
| Kazuki Yamamoto |
9:844e301ab0fd | 314 | { |
| Kazuki Yamamoto |
9:844e301ab0fd | 315 | pc.printf("command V is not implemented\n\r"); |
| Kazuki Yamamoto |
5:07f7000ec747 | 316 | i=plength; |
| Kazuki Yamamoto |
5:07f7000ec747 | 317 | break; |
| Kazuki Yamamoto |
9:844e301ab0fd | 318 | } |
| Kazuki Yamamoto |
9:844e301ab0fd | 319 | default: |
| Kazuki Yamamoto |
9:844e301ab0fd | 320 | { |
| Kazuki Yamamoto |
9:844e301ab0fd | 321 | pc.printf("command ? is not implemented\n\r"); |
| Kazuki Yamamoto |
9:844e301ab0fd | 322 | i=plength; |
| Kazuki Yamamoto |
9:844e301ab0fd | 323 | break; |
| Kazuki Yamamoto |
9:844e301ab0fd | 324 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 325 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 326 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 327 | i=0; |
| Kazuki Yamamoto |
5:07f7000ec747 | 328 | length=0; |
| Kazuki Yamamoto |
5:07f7000ec747 | 329 | } |
| Kazuki Yamamoto |
5:07f7000ec747 | 330 | } |