Kazuki Yamamoto
/
uart_i2c_conv
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Diff: LPC824/main.cpp
- Revision:
- 27:53a29982d658
- Parent:
- 26:7810c849cb78
- Child:
- 28:1fe126593ba1
--- a/LPC824/main.cpp Tue Dec 16 18:13:49 2014 +0900
+++ b/LPC824/main.cpp Wed Dec 17 14:29:06 2014 +0900
@@ -325,7 +325,7 @@
case CMD_R:
{
length = plength - 2;
- if(length<1){
+ if(length < 1){
pc.printf("bad packet! %d\n\r",length);
i = plength + 1;
length = 0;
@@ -340,7 +340,11 @@
}
case GPIO0_STAT:
{
- data = registers[GPIO0_STAT-'0'];
+ for(int k=0; k<8; k++){
+ _data = gpio0[k]->read();
+ data |= (_data << k);
+ }
+ registers[GPIO0_STAT-'0'] = data;
break;
}
case GPIO0_CONF:
@@ -348,9 +352,14 @@
data = registers[GPIO0_CONF-'0'];
break;
}
+#ifndef QUAD_I2C
case GPIO1_STAT:
{
- data = registers[GPIO1_STAT-'0'];
+ for(int k=0; k<8; k++){
+ _data = gpio1[k]->read();
+ data |= (_data << k);
+ }
+ registers[GPIO1_STAT-'0'] = data;
break;
}
case GPIO1_CONF:
@@ -358,6 +367,7 @@
data = registers[GPIO1_CONF-'0'];
break;
}
+#endif
default:
{
data = 0xAA;
@@ -365,6 +375,7 @@
}
}
send[j] = (char)data;
+ data=0;
}
i += (length+1);
}
@@ -381,6 +392,7 @@
for(int j=0; j<length; j+=3){
address = recieve[i+1+j];
data = 0xff & (recieve[i+2+j] << 4 | (recieve[i+3+j] & 0x0F));
+ _data = 0;
switch(address){
case CHIP_ID:
{
@@ -390,8 +402,15 @@
}
case GPIO0_STAT:
{
- //READ ONLY from this command: do nothing
- data = registers[GPIO0_STAT-'0'];
+ _data = registers[GPIO0_CONF-'0'];
+ for(int k=0; k<8; k++){
+ if(_data&0x01){ // output
+ gpio0[k]->write((data>>k)&0x01);
+ }else{ // input
+ ; // do nothing
+ }
+ _data >>= 1;
+ }
break;
}
case GPIO0_CONF:
@@ -409,16 +428,23 @@
data = registers[GPIO0_CONF-'0'];
break;
}
+#ifndef QUAD_I2C
case GPIO1_STAT:
{
- //READ ONLY from this command: do nothing
- data = registers[GPIO1_STAT-'0'];
+ _data = registers[GPIO1_CONF-'0'];
+ for(int k=0; k<8; k++){
+ if(_data&0x01){ // output
+ gpio1[k]->write((data>>k)&0x01);
+ }else{ // input
+ ; // do nothing
+ }
+ _data >>= 1;
+ }
break;
}
case GPIO1_CONF:
{
registers[GPIO1_CONF-'0'] = data;
-#ifndef QUAD_I2C
for(int k=0; k<6; k++){
if(data&0x01){//output
gpio1[k]->output();
@@ -428,18 +454,18 @@
}
data >>= 1;
}
-#endif
data = registers[GPIO1_CONF-'0'];
break;
}
+#endif
default:
{
break;
}
}
- send[j/3] = (char)data;
+ send[j/3] = data;
}
- i += length+1;
+ i += (length+1);
length /= 3;
}
break;
@@ -447,48 +473,100 @@
case CMD_I:
{
length = plength - 2;
- data = 0;
- if(length != 0){
+ if(length < 1){
pc.printf("bad packet! %d\n\r",length);
i = plength + 1;
length = 0;
}else{
- for(int j=0; j<8; j++){
- _data = gpio0[j]->read();
- pc.printf("_%02X, ",_data);
- data |= (_data << j);
+ for(int j=0; j<length; j++){
+ address = recieve[i+1+j];
+ _data=0;
+ switch(address){
+ case GPIO0_STAT:
+ {
+ for(int k=0; k<8; k++){
+ _data = gpio0[k]->read();
+ data |= (_data << k);
+ }
+ registers[GPIO0_STAT-'0'] = data;
+ break;
+ }
+#ifndef QUAD_I2C
+ case GPIO1_STAT:
+ {
+ for(int k=0; k<8; k++){
+ _data = gpio1[k]->read();
+ data |= (_data << k);
+ }
+ registers[GPIO1_STAT-'0'] = data;
+ break;
+ }
+#endif
+ default:
+ {
+ data = 0xAA;
+ break;
+ }
+ }
+ send[j] = (char)data;
+ data = 0;
}
- registers[GPIO0_STAT-'0'] = data;
- send[0] = data;
- length = 1;
+ i += (length+1);
}
- pc.printf("%02X, ",data);
- i+=length;
break;
}
case CMD_O:
{
length = plength - 2;
- if(length != 2){
+ if(length < 3){
pc.printf("bad packet! %d\n\r",length);
i = plength + 1;
length = 0;
}else{
- data = 0xff & (recieve[i+1] << 4 | (recieve[i+2] & 0x0F));
- _data = registers[GPIO0_CONF-'0'];
- send[0] = (char)data;
- for(int j=0; j<8; j++){
- if(_data&0x01){ // output
- gpio0[j]->write(data&0x01);
- }else{ // input
- ; // do nothing
+ for(int j=0; j<length; j+=3){
+ address = recieve[i+1+j];
+ data = 0xff & (recieve[i+2+j] << 4 | (recieve[i+3+j] & 0x0F));
+ switch(address){
+ case GPIO0_STAT:
+ {
+ _data = registers[GPIO0_CONF-'0'];
+ for(int k=0; k<8; k++){
+ if(_data&0x01){ // output
+ gpio0[k]->write(data&0x01);
+ }else{ // input
+ ; // do nothing
+ }
+ data >>= 1;
+ _data >>= 1;
+ }
+ break;
+ }
+#ifndef QUAD_I2C
+ case GPIO1_STAT:
+ {
+ _data = registers[GPIO1_CONF-'0'];
+ for(int k=0; k<8; k++){
+ if(_data&0x01){ // output
+ gpio1[k]->write(data&0x01);
+ }else{ // input
+ ; // do nothing
+ }
+ data >>= 1;
+ _data >>= 1;
+ }
+ break;
+ }
+#endif
+ default:
+ {
+ break;
+ }
}
- data >>= 1;
- _data >>= 1;
+ send[j/3] = data;
}
- i += length+1;
- length = 1;
}
+ i += (length+1);
+ length /= 3;
// pc.printf("command O is not implemented, ");
break;
}