// #define F_CPU 8000000UL
+#include <avr/eeprom.h>
#include <avr/interrupt.h>
-#include <util/delay.h>
#include <avr/io.h>
-#include <avr/eeprom.h>
#include <string.h>
#include <usb_serial.h>
+#include <util/delay.h>
#define FIRMWARE_VERSION 0x001
/*
//ADC
// 0 Sense1 Vin
-// 1 GND
-// 4 Sense2 Vmon3
-// 5 Sense3 TEMP_OUT
-// 6 Sense4 Vmon2
-// 7 Sense5 Vmon1
-// 10 Sense6 Vmon0
+// 1 Sense_GND
+// 4 Sense2 Vmon4 DCDC3 CH0
+// 5 Sense3 TEMP_OUT2 DCDC2
+// 6 Sense4 Vmon3 DCDC2 CH0
+// 7 Sense5 Vmon2 DCDC1 CH0
+// 10 Sense6 Vmon1 DCDC0 CH0
// 11 Sense7 Cin
-
-// PB5 LED CH 0
-// PB6 LED CH 1
-// PC6 LED CH 2
-// PC7 LED CH 3
-//PD6 LED1
-//PD4 LED2
+// PB5 LED DCDC 0 (green)
+// PB6 LED DCDC 1 (green)
+// PC6 LED DCDC 2 (green)
+// PC7 LED DCDC 3 (green)
+// PD6 LED1 (yellow)
+// PD4 LED2 (red)
//PB7 Output enable
//shift register outputs (times 4) Output 0 on MSB, Output 3 on LSB side
-//CTRL10 (MSB)
-//CTRL11
-//CTRL12
+// CTRL10 (MSB)
+// CTRL11
+// CTRL12
// empty
-//DCDC_EN
-//CTRL00
-//CTRL01
-//CTRL02
+// DCDC_EN //DCDC ON/OFF
+// CTRL00
+// CTRL01
+// CTRL02
// | Registers | description |
// |-----------|--------------------------------------------------------------|
-// | 0 | LDO ON/OFF |
+// | 0 | DCDC ON/OFF |
// | 1 | DCDC set voltage adjustment resistors |
-// | 2 | Voltage V_in (NA) |
-// | 3 | Current C_in (NA) |
+// | 2 | Voltage V_in (RO) |
+// | 3 | Current C_in (RO) |
// | 4 | Temperature (RO) |
// | 5 | [15:4] Firmware; [3:2] reserved; [1] Switch ; [0] LED (RO) |
// | 6 | Current Offset |
// | 7 | Voltage V_out (RO) |
-// | 8 | Current C_out (RO) |
+// | 8 | Current C_out (NA) |
+// | 9 | Sense GND (NA) |
// **Data format:** *XuuGcRvvvv*
// **Data format:** *X000cRvvvv*
#define ISMYADDR() (rxbuf[1] == '0' && rxbuf[2] == '0')
-#define LED1_ON() PORTD |= (1<<PD6)
-#define LED1_OFF() PORTD &= ~(1<<PD6)
+#define LED1_ON() PORTD |= (1 << PD6)
+#define LED1_OFF() PORTD &= ~(1 << PD6)
-#define LED2_ON() PORTD |= (1<<PD4)
-#define LED2_OFF() PORTD &= ~(1<<PD4)
+#define LED2_ON() PORTD |= (1 << PD4)
+#define LED2_OFF() PORTD &= ~(1 << PD4)
-#define LED_CH0_ON() PORTB |= (1<<PB5)
-#define LED_CH0_OFF() PORTB &= ~(1<<PB5)
-#define LED_CH1_ON() PORTB |= (1<<PB6)
-#define LED_CH1_OFF() PORTB &= ~(1<<PB6)
-#define LED_CH2_ON() PORTC |= (1<<PC6)
-#define LED_CH2_OFF() PORTC &= ~(1<<PC6)
-#define LED_CH3_ON() PORTC |= (1<<PC7)
-#define LED_CH3_OFF() PORTC &= ~(1<<PC7)
+#define LED_CH0_ON() PORTB |= (1 << PB5)
+#define LED_CH0_OFF() PORTB &= ~(1 << PB5)
+#define LED_CH1_ON() PORTB |= (1 << PB6)
+#define LED_CH1_OFF() PORTB &= ~(1 << PB6)
+#define LED_CH2_ON() PORTC |= (1 << PC6)
+#define LED_CH2_OFF() PORTC &= ~(1 << PC6)
+#define LED_CH3_ON() PORTC |= (1 << PC7)
+#define LED_CH3_OFF() PORTC &= ~(1 << PC7)
+#define SHCP_HIGH() PORTB |= (1 << PB1) // SCLK
+#define SHCP_LOW() PORTB &= ~(1 << PB1)
-#define SHCP_HIGH() PORTB |= (1<<PB1) //SCLK
-#define SHCP_LOW() PORTB &= ~(1<<PB1)
+#define STCP_HIGH() PORTB |= (1 << PB3)
+#define STCP_LOW() PORTB &= ~(1 << PB3)
-#define STCP_HIGH() PORTB |= (1<<PB3)
-#define STCP_LOW() PORTB &= ~(1<<PB3)
+#define SHIFT_DATA_LOW() PORTB |= (1 << PB2) // MOSI
+#define SHIFT_DATA_HIGH() PORTB &= ~(1 << PB2)
-#define SHIFT_DATA_LOW() PORTB |= (1<<PB2) //MOSI
-#define SHIFT_DATA_HIGH() PORTB &= ~(1<<PB2)
-
-#define SHIFT_EN_OUTPUT() PORTB &= ~(1<<PB7)
-#define SHIFT_DIS_OUTPUT() PORTB |= (1<<PB7)
+#define SHIFT_EN_OUTPUT() PORTB &= ~(1 << PB7)
+#define SHIFT_DIS_OUTPUT() PORTB |= (1 << PB7)
uint16_t time;
uint8_t rxcnt = 0, txpoint = 0;
uint8_t rxbuf[11];
uint8_t txbuf[12];
-uint16_t adc[16]; //raw values from ADC
+uint16_t adc[16]; // raw values from ADC
uint16_t V_in = 0;
uint16_t C_in = 0;
uint16_t temp = 0;
uint16_t information = 1;
int8_t curr_offset = 0;
uint32_t shift_register;
-uint16_t read_LDO_status;
+uint16_t read_DCDC_status;
uint16_t read_setting;
uint8_t isMaster = 0;
uint16_t V_out;
uint16_t C_out;
+uint16_t GND;
uint8_t nib_to_hex(uint16_t in, uint8_t nib) {
- uint8_t t = (in >> (nib*4)) & 0xF;
- if (t <= 9) {return t + 0x30;}
- return t - 10 + 0x61;
- }
-
-uint8_t hex_to_int(uint8_t h) { //assumes valid number
- if (h < 0x40) return h-0x30;
- if (h < 0x50) return h-0x41+10;
- return h-0x61+10;
+ uint8_t t = (in >> (nib * 4)) & 0xF;
+ if (t <= 9) {
+ return t + 0x30;
}
+ return t - 10 + 0x61;
+}
+
+uint8_t hex_to_int(uint8_t h) { // assumes valid number
+ if (h < 0x40) return h - 0x30;
+ if (h < 0x50) return h - 0x41 + 10;
+ return h - 0x61 + 10;
+}
-void sub1(uint8_t* c1, uint8_t* c2) {
- uint8_t b = hex_to_int(*c1)*16 + hex_to_int(*c2);
+void sub1(uint8_t *c1, uint8_t *c2) {
+ uint8_t b = hex_to_int(*c1) * 16 + hex_to_int(*c2);
b -= 1;
- *c1 = nib_to_hex(b,1);
- *c2 = nib_to_hex(b,0);
- }
+ *c1 = nib_to_hex(b, 1);
+ *c2 = nib_to_hex(b, 0);
+}
-void send_answer_buf(uint8_t*b) {
- UCSR1B |= (1<<UDRIE1);
- }
-
-void send_answer_hex(uint8_t* rxbuf, uint16_t v) {
- txbuf[0]='A';
- txbuf[1]=rxbuf[1];
- txbuf[2]=rxbuf[2];
- txbuf[3]=rxbuf[3];//Switch deactivated
- txbuf[4]=rxbuf[4];
- txbuf[5]=rxbuf[5];
- txbuf[6]=nib_to_hex(v,3);
- txbuf[7]=nib_to_hex(v,2);
- txbuf[8]=nib_to_hex(v,1);
- txbuf[9]=nib_to_hex(v,0);
- txbuf[10]='\n';
- txbuf[11] = 0;
+void send_answer_buf(uint8_t *b) { UCSR1B |= (1 << UDRIE1); }
+
+void send_answer_hex(uint8_t *rxbuf, uint16_t v) {
+ txbuf[0] = 'A';
+ txbuf[1] = rxbuf[1];
+ txbuf[2] = rxbuf[2];
+ txbuf[3] = rxbuf[3]; // Switch deactivated
+ txbuf[4] = rxbuf[4];
+ txbuf[5] = rxbuf[5];
+ txbuf[6] = nib_to_hex(v, 3);
+ txbuf[7] = nib_to_hex(v, 2);
+ txbuf[8] = nib_to_hex(v, 1);
+ txbuf[9] = nib_to_hex(v, 0);
+ txbuf[10] = '\n';
+ txbuf[11] = 0; //string ends with zero
send_answer_buf(txbuf);
- }
+}
void forward_msg(uint8_t i) {
- sub1(&rxbuf[1],&rxbuf[2]);
- memcpy ((uint8_t*)txbuf,(uint8_t*)rxbuf,i);
+ sub1(&rxbuf[1], &rxbuf[2]);
+ memcpy((uint8_t *)txbuf, (uint8_t *)rxbuf, i);
txbuf[i] = 0;
send_answer_buf(txbuf);
- }
-
+}
+
uint8_t is_my_address(uint8_t s) {
if (ISMYADDR()) {
- //rxbuf[2] -= '0'; // write number to buffer, instead of ascii.
+ // rxbuf[2] -= '0'; // write number to buffer, instead of ascii.
return 1;
} else {
forward_msg(s);
return 0;
}
-}
-
-//NPIC6C596A
-void setVoltages(void){
- cli();
- STCP_LOW();
- for (uint8_t i = 0; i < 32; i++ ){
- SHCP_LOW();
- if (shift_register & ((uint32_t)1<<i))
- SHIFT_DATA_HIGH();
- else
- SHIFT_DATA_LOW();
- SHCP_HIGH();
- }
- SHCP_LOW();
- SHIFT_DATA_LOW();
- //Load to Ouput Register:
- STCP_HIGH();
- STCP_HIGH();
- STCP_LOW();
- STCP_LOW();
- SHIFT_EN_OUTPUT();
- sei();
}
-void switchLDO(uint8_t chan, uint8_t val) {
-// if (chan == 1) {
-// shift_register &= ~(1<<4);
-// if (val ==0) {} //LDO CH1 off
-// else {shift_register |= (1<<4);} //LDO CH1 on
-// }
-// if (chan == 0) {
-// shift_register &= ~(1<<3);
-// if (val ==0) {} //LDO CH0 off
-// else {shift_register |= (1<<3);} //LDO CH0 on
-// }
-// setVoltages();
+// NPIC6C596A
+void setVoltages(void) {
+ cli();
+ STCP_LOW();
+ uint32_t mask = (uint32_t)0x80000000;
+ for (int8_t i = 31; i >= 0; i--) {
+ SHCP_LOW();
+ if (shift_register & mask)
+ SHIFT_DATA_HIGH();
+ else
+ SHIFT_DATA_LOW();
+ SHCP_HIGH();
+ mask >>= 1;
+ }
+ SHCP_LOW();
+ SHIFT_DATA_LOW();
+ // Load to Ouput Register:
+ STCP_HIGH();
+ STCP_HIGH();
+ STCP_LOW();
+ SHIFT_EN_OUTPUT();
+ sei();
}
-void setDCDC(uint8_t chan, uint8_t val) {
-// //DCDC CH0
-// if (chan == 2 & val<=7) {
-// val = 7 - val;
-// shift_register &= ~((1<<15)|(1<<14)|(1<<13)); //clear decbitpos15-13
-// shift_register |= val<<13;
-// }
-// //DCDC CH1
-// if (chan == 3 & val<=7) {
-// val = 7 - val;
-// shift_register &= ~((1<<11)|(1<<10)|(1<<9));
-// shift_register |= val<<9;
-// }
-// //LDO CH1
-// if (chan == 1 & val<=7) {
-// val = 7 - val;
-// shift_register &= ~((1<<7)|(1<<6)|(1<<5));
-// shift_register |= val<<5;
-// }
-// //LDO CH0
-// if (chan == 0 & val<=7) {
-// val = 7 - val;
-// shift_register &= ~((1<<2)|(1<<1)|(1<<0));
-// shift_register |= val<<0;
-// }
-// setVoltages();
+void switchDCDC(uint8_t group, uint8_t val) {
+ if (val == 0) {
+ shift_register &= ~((uint32_t)1 << (4 + group * 8)); // DCDC off
+ if (group == 0) {
+ LED_CH0_OFF();
+ } else if (group == 1) {
+ LED_CH1_OFF();
+ } else if (group == 2) {
+ LED_CH2_OFF();
+ } else if (group == 3) {
+ LED_CH3_OFF();
+ }
+ }
+ else {
+ shift_register |= ((uint32_t)1 << (4 + group * 8)); // DCDC on
+ if (group == 0) {
+ LED_CH0_ON();
+ } else if (group == 1) {
+ LED_CH1_ON();
+ } else if (group == 2) {
+ LED_CH2_ON();
+ } else if (group == 3) {
+ LED_CH3_ON();
+ }
+ }
+ setVoltages();
}
-void setInfo(uint8_t chan, uint8_t val){
- if ((val & 0x1) == 1) { LED1_ON(); information |= (1<<0);}// LED1 on
- if ((val & 0x1) == 0) { LED1_OFF(); information &= ~(1<<0);}// LED1 off
-
- if (((val>>1) & 0x1) == 1) { LED2_ON(); information |= (1<<1);}// LED2 on
- if (((val>>1) & 0x1) == 0) { LED2_OFF(); information &= ~(1<<1);}// LED2 off
+void setDCDC(uint8_t group, uint8_t chan, uint8_t val) {
+ // DCDC CH0
+ if (chan == 0 && val <= 7) {
+ val = 7 - val;
+ shift_register &= ~(((uint32_t)1 << ((5 + group * 8) + 2)) | ((uint32_t)1 << ((5 + group * 8) + 1)) | ((uint32_t)1 << (5 + group * 8))); // clear bitpositon f.e. group = 0 -> 7,6,5
+ val = ((val >> 2) & 1) | (val & 2)| ((val <<2) & 4); //for lineal increase
+ shift_register |= (uint32_t)val << (group * 8 + 5);
+ }
+ // DCDC CH1
+ if (chan == 1 && val <= 7) {
+ val = 7 - val;
+ shift_register &= ~(((uint32_t)1 << ((group * 8) + 2)) | ((uint32_t)1 << ((group * 8) + 1)) | ((uint32_t)1 << (group * 8))); // clear bitpositon f.e. group = 0 -> 2,1,0
+ val = ((val >> 2) & 1) | (val & 2)| ((val <<2) & 4);
+ shift_register |= (uint32_t)val << (group * 8);
+ }
+
+ setVoltages();
+}
+
+void setInfo(uint8_t chan, uint8_t val) {
+ if ((val & 0x1) == 1) {LED1_ON(); information |= (1 << 0);} // LED1 on
+ if ((val & 0x1) == 0) {LED1_OFF(); information &= ~(1 << 0);} // LED1 off
- information |= (FIRMWARE_VERSION<<4);
+ if (((val >> 1) & 0x1) == 1) {LED2_ON(); information |= (1 << 1);} // LED2 on
+ if (((val >> 1) & 0x1) == 0) {LED2_OFF(); information &= ~(1 << 1);} // LED2 off
+
+ information |= (FIRMWARE_VERSION << 4);
}
/*
// Data: XuuGcRvvvv
-//Switch deactivated
+// Switch deactivated
// X - command (write: W, read: R, answer: A etc.)
// uu - Controllernumber (Hex value)
-// G - Groupnumber (to talk to all channels, that belong together, in one command.)
+// G - Groupnumber (to talk to all channels, that belong together,
+in one command.)
// c - channelnumber in the group (Hex value)
// R - register (Hex value)
-// vvvv - 16 Bit value
+// vvvv - 16 Bit value
//
// All in all 10 characters
// RF2012FE51
//
// close with a "\n"
// e.g. "RF2012FE51\n"
-//
+//
//
//
// | Registers | description |
// |-----------|--------------------------------------------------------------|
-// | 0 | LDO ON/OFF |
+// | 0 | DCDC ON/OFF |
// | 1 | DCDC set voltage adjustment resistors |
-// | 2 | Voltage V_in (NA) |
-// | 3 | Current C_in (NA) |
+// | 2 | Voltage V_in (RO) |
+// | 3 | Current C_in (RO) |
// | 4 | Temperature (RO) |
// | 5 | [15:4] Firmware; [3:2] reserved; [1] Switch ; [0] LED (RO) |
// | 6 | Current Offset |
// | 7 | Voltage V_out (RO) |
-// | 8 | Current C_out (RO) |
+// | 8 | Current C_out (NA) |
+// | 9 | Sense GND (RO) |
*/
void getdata(uint8_t buf) {
if (rxcnt != 0 || (buf == 'A' || buf == 'W' || buf == 'R')) {
rxbuf[rxcnt++] = buf;
}
- if (buf == '\n' || buf == '\r') { //End of Command
+ if (buf == '\n' || buf == '\r') { // End of Command
if (rxbuf[0] == 'A') {
-//answer
- memcpy ((uint8_t*)txbuf,(uint8_t*)rxbuf,10);
- txbuf[11] = 0;
- send_answer_buf(txbuf);
+ // answer
+ memcpy((uint8_t *)txbuf, (uint8_t *)rxbuf, 10);
+ txbuf[11] = 0;
+ send_answer_buf(txbuf);
} else if (rxbuf[0] == 'S') { // Scann of chain, returns number of boards
- txbuf[0] = 'S';
- uint8_t length = rxcnt - 2 ; // Length of Counter
- //read current counter value
- uint32_t cnt = 0;
- if (length == 0){
- length = 1;
- } else {
- uint32_t base = 1;
- for (uint8_t i = length; i > 0; i--){
- cnt += hex_to_int(rxbuf[i])*base;
- base *= 16;
- }
+ txbuf[0] = 'S';
+ uint8_t length = rxcnt - 2; // Length of Counter
+ // read current counter value
+ uint32_t cnt = 0;
+ if (length == 0) {
+ length = 1;
+ } else {
+ uint32_t base = 1;
+ for (uint8_t i = length; i > 0; i--) {
+
+ cnt += hex_to_int(rxbuf[i]) * base;
+ base *= 16;
+ }
+ }
+ // inc counter value
+ cnt++;
+ // send to next uC
+ if ((cnt % 16) == 0)
+ length++;
+ for (uint8_t i = length; i > 0; i--) {
+ txbuf[i] = nib_to_hex(cnt, length - i);
+ }
+ if (length > 8)
+ length = 8; // skip to keep a clean ending of message
+ txbuf[length + 1] = 10;
+ txbuf[length + 2] = 0;
+ send_answer_buf(txbuf);
+ rxcnt = 0;
+ } else if (rxcnt == 11 && is_my_address(10)) { // message is for this uC
+// } else if (is_my_address(10)) { //answer 0x00d1 works with this line
+ if (rxbuf[0] == 'W') {
+ // write
+ switch (hex_to_int(rxbuf[5])) {
+
+ // set DCDC ON/OFF
+ case 0:
+ if (hex_to_int(rxbuf[3]) < 4) {
+ switchDCDC(hex_to_int(rxbuf[3]), hex_to_int(rxbuf[9]));
+ eeprom_update_byte((uint8_t *)0x21, shift_register);
+ eeprom_update_byte((uint8_t *)0x22, shift_register >> 8);
+ eeprom_update_byte((uint8_t *)0x23, shift_register >> 16);
+ eeprom_update_byte((uint8_t *)0x24, shift_register >> 24);
}
- // inc counter value
- cnt++;
- //send to next uC
- if ((cnt % 16) == 0) length++;
- for (uint8_t i = length; i > 0; i--){
- txbuf[i] = nib_to_hex(cnt,length-i);
+ send_answer_hex(&rxbuf[0], 0x00d1);
+ break;
+
+ // set voltage of DCDC-Converter
+ case 1:
+ if (hex_to_int(rxbuf[3]) < 4) {
+ setDCDC(hex_to_int(rxbuf[3]), hex_to_int(rxbuf[4]), hex_to_int(rxbuf[9]));
+ eeprom_update_byte((uint8_t *)0x21, shift_register);
+ eeprom_update_byte((uint8_t *)0x22, shift_register >> 8);
+ eeprom_update_byte((uint8_t *)0x23, shift_register >> 16);
+ eeprom_update_byte((uint8_t *)0x24, shift_register >> 24);
}
- if (length > 8) length = 8; // skip to keep a clean ending of message
- txbuf[length+1] = 10;
- txbuf[length+2] = 0;
- send_answer_buf(txbuf);
- rxcnt = 0;
- } else if (is_my_address(10)){ // message is for this uC
- if (rxbuf[0] == 'W'){
-//write
- switch (hex_to_int(rxbuf[5])) {
-
- // set LDO ON/OFF
- case 0: if (hex_to_int(rxbuf[4]) < 3) {
- switchLDO(hex_to_int(rxbuf[4]),hex_to_int(rxbuf[9]));
- eeprom_update_byte((uint8_t*)0x21,shift_register);
- eeprom_update_byte((uint8_t*)0x22,shift_register>>8);
- }
- send_answer_hex(&rxbuf[0],shift_register);
- break;
-
- // set voltage of DCDC-Converter
- case 1: if (hex_to_int(rxbuf[4]) < 5) {
- setDCDC(hex_to_int(rxbuf[4]),hex_to_int(rxbuf[9]));
- eeprom_update_byte((uint8_t*)0x21,shift_register);
- eeprom_update_byte((uint8_t*)0x22,shift_register>>8);
- }
- send_answer_hex(&rxbuf[0],shift_register);
- break;
-
- // set information
- case 5: setInfo(hex_to_int(rxbuf[4]),hex_to_int(rxbuf[9]));
- send_answer_hex(&rxbuf[0],information);
- break;
-
- // set current offset
- case 6: curr_offset = (hex_to_int(rxbuf[7])*16+hex_to_int(rxbuf[8]))&0xFF;
- eeprom_update_byte((uint8_t*)0x26,curr_offset);
- send_answer_hex(&rxbuf[0],curr_offset*16);
- break;
-
- default:send_answer_hex(&rxbuf[0], 0xFFFF);
- break;
-
+ send_answer_hex(&rxbuf[0], 0x00d1);
+ break;
+
+ // set information
+ case 5:
+ setInfo(hex_to_int(rxbuf[4]), hex_to_int(rxbuf[9]));
+ send_answer_hex(&rxbuf[0], information);
+ break;
+
+ // set current offset
+ case 6:
+ curr_offset = (hex_to_int(rxbuf[7]) * 16 + hex_to_int(rxbuf[8])) & 0xFF;
+ eeprom_update_byte((uint8_t *)0x26, curr_offset);
+ send_answer_hex(&rxbuf[0], curr_offset * 16);
+ break;
+
+ default:
+ send_answer_hex(&rxbuf[0], 0xFFFF);
+ break;
}
}
- if (rxbuf[0] == 'R'){
-//read
- // get LDO status
+ if (rxbuf[0] == 'R') {
+ // read
+
+ // get DCDC status
if (hex_to_int(rxbuf[5]) == 0) {
- uint16_t read_LDO_status = 0xFFFF;
- //LDO Status CH1
- if (hex_to_int(rxbuf[4]) == 1) {read_LDO_status = ((shift_register >> 4) & 1);
- }
- //LDO Status CH0
- if (hex_to_int(rxbuf[4]) == 0) {read_LDO_status = ((shift_register >> 3) & 1);
- }
- send_answer_hex(&rxbuf[0],read_LDO_status);
+ uint16_t read_DCDC_status = 0xFFFF;
+ // DCDC Status CH0
+ if (hex_to_int(rxbuf[4]) == 0) {
+ read_DCDC_status = ((shift_register >> (4 + hex_to_int(rxbuf[3]) * 8)) & 1);
+ }
+
+ send_answer_hex(&rxbuf[0], read_DCDC_status);
}
-
+
// get voltage resistors selection
if (hex_to_int(rxbuf[5]) == 1) {
- uint16_t read_setting = 0xFFFF;
- //DCDC CH0
- if (hex_to_int(rxbuf[4]) == 2) {read_setting = 7 - ((shift_register >> 13) & 7);
- }
- //DCDC CH1
- if (hex_to_int(rxbuf[4]) == 3) {read_setting = 7 - ((shift_register >> 9) & 7);
- }
- //LDO CH1
- if (hex_to_int(rxbuf[4]) == 1) {read_setting = 7 - ((shift_register >> 5) & 7);
- }
- //LDO CH0
- if (hex_to_int(rxbuf[4]) == 0) {read_setting = 7 - (shift_register & 7);
- }
- send_answer_hex(&rxbuf[0],read_setting);
+ uint16_t read_setting = 0xFFFF;
+ // CH0
+ if (hex_to_int(rxbuf[4]) == 0) {
+ read_setting = 7 - ((shift_register >> (hex_to_int(rxbuf[3]) * 8 + 5)) & 7);
+ }
+ // CH1
+ if (hex_to_int(rxbuf[4]) == 1) {
+ read_setting = 7 - ((shift_register >> (hex_to_int(rxbuf[3]) * 8)) & 7);
+ }
+ send_answer_hex(&rxbuf[0], read_setting);
}
-
+
// get voltage V_in
if (hex_to_int(rxbuf[5]) == 2) {
- send_answer_hex(&rxbuf[0],V_in);
+ V_in = (5 * adc[0]) / 2;
+ send_answer_hex(&rxbuf[0], V_in);
}
-
+
// get current C_in
if (hex_to_int(rxbuf[5]) == 3) {
- send_answer_hex(&rxbuf[0],C_in);
+ C_in = (5 * adc[11]) / 2;
+ send_answer_hex(&rxbuf[0], C_in);
}
-
+
// get temperature
if (hex_to_int(rxbuf[5]) == 4) {
- temp = adc[5];
- send_answer_hex(&rxbuf[0],temp);
+ temp = adc[5];
+ send_answer_hex(&rxbuf[0], temp);
}
-
+
// get information
if (hex_to_int(rxbuf[5]) == 5) {
- information |= (FIRMWARE_VERSION<<4);
- send_answer_hex(&rxbuf[0],information);
+ information |= (FIRMWARE_VERSION << 4);
+ send_answer_hex(&rxbuf[0], information);
}
-
+
// get current offset
if (hex_to_int(rxbuf[5]) == 6) {
- send_answer_hex(&rxbuf[0],curr_offset*16);
- }
-
+ send_answer_hex(&rxbuf[0], curr_offset * 16);
+ }
+
// get voltage V_out
if (hex_to_int(rxbuf[5]) == 7) {
- //DCDC CH0
- if (hex_to_int(rxbuf[4]) == 2) {
- V_out = (5*adc[0])/2;
- send_answer_hex(&rxbuf[0],V_out);
- }
- //DCDC CH1
- if (hex_to_int(rxbuf[4]) == 3) {
- V_out = (5*adc[7])/2;
- send_answer_hex(&rxbuf[0],V_out);
- }
- //LDO CH1
- if (hex_to_int(rxbuf[4]) == 1) {
- V_out = (5*adc[6])/2;
- send_answer_hex(&rxbuf[0],V_out);
- }
- //LDO CH0
- if (hex_to_int(rxbuf[4]) == 0) {
- V_out = (5*adc[1])/2;
- send_answer_hex(&rxbuf[0],V_out);
- }
-
+
+ // DCDC 0
+ if (hex_to_int(rxbuf[3]) == 0) {
+ V_out = (5 * adc[10]) / 2; // 2.5 (5/2) stepsize of adc
+ send_answer_hex(&rxbuf[0], V_out);
+ }
+ // DCDC 1
+ if (hex_to_int(rxbuf[3]) == 1) {
+ V_out = (5 * adc[7]) / 2;
+ send_answer_hex(&rxbuf[0], V_out);
+ }
+ // DCDC 2
+ if (hex_to_int(rxbuf[3]) == 2) {
+ V_out = (5 * adc[6]) / 2;
+ send_answer_hex(&rxbuf[0], V_out);
+ }
+ // DCDC 3
+ if (hex_to_int(rxbuf[3]) == 2) {
+ V_out = (5 * adc[4]) / 2;
+ send_answer_hex(&rxbuf[0], V_out);
+ }
+ }
+ /*
+ // get current C_out
+ if (hex_to_int(rxbuf[5]) == 8) {
+ //LDO CH1
+ if (hex_to_int(rxbuf[4]) == 1) {
+ C_out = adc[13];
+ }
+ //LDO CH0
+ if (hex_to_int(rxbuf[4]) == 0) {
+ C_out = adc[3];
+ }
+ send_answer_hex(&rxbuf[0],C_out);
+ }
+ */
+
+ // get GND
+ if (hex_to_int(rxbuf[5]) == 9) {
+ GND = (5 * adc[1]) / 2;
+ ;
+ send_answer_hex(&rxbuf[0], GND);
}
-
- // get current C_out
- if (hex_to_int(rxbuf[5]) == 8) {
- //LDO CH1
- if (hex_to_int(rxbuf[4]) == 1) {
- C_out = adc[13];
- }
- //LDO CH0
- if (hex_to_int(rxbuf[4]) == 0) {
- C_out = adc[3];
- }
- send_answer_hex(&rxbuf[0],C_out);
- }
}
}
- if (rxcnt >= 10 || buf == '\n' || buf == '\r') { rxcnt = 0; }
-}
+ if (rxcnt >= 11 || buf == '\n' || buf == '\r') {
+ rxcnt = 0;
+ }
+ }
}
+
ISR(ADC_vect) {
static uint8_t channel = 0;
adc[channel] = ADC;
-
- if (channel == 1) channel = 4;
- else if (channel == 7) channel = 13;
- else if (channel == 13)channel = 0;
- else channel++;
-
+
+ if (channel == 1) channel = 4;
+ else if (channel == 7) channel = 13;
+ else if (channel == 13) channel = 0;
+ else channel++;
+
ADMUX &= 0xe0;
ADMUX |= (channel & 0xf);
- if (channel == 13) ADCSRB |= (1<<MUX5);
- else ADCSRB &= ~(1<<MUX5);
-
- ADCSRA |= (1<<ADSC);
- }
+ if (channel == 13)
+ ADCSRB |= (1 << MUX5);
+ else
+ ADCSRB &= ~(1 << MUX5);
+
+ ADCSRA |= (1 << ADSC);
+}
ISR(USART1_RX_vect) {
uint8_t buf = UDR1;
- if(isMaster == 0) {
+ if (isMaster == 0) {
getdata(buf);
} else {
- //usb_serial_putchar(buf);
+ // usb_serial_putchar(buf);
}
}
-
+
ISR(USART1_UDRE_vect) {
- if(txbuf[txpoint] != 0)
- UDR1 = txbuf[txpoint++];
- if(txpoint > 11 || txbuf[txpoint] == 0) {
- txpoint = 0;
- UCSR1B &= ~(1<< UDRIE1); //deactivate Transmit
- }
- }
-
+ if (txbuf[txpoint] != 0)
+ UDR1 = txbuf[txpoint++];
+ if (txpoint > 11 || txbuf[txpoint] == 0) {
+ txpoint = 0;
+ UCSR1B &= ~(1 << UDRIE1); // deactivate Transmit
+ }
+}
+
ISR(TIMER0_OVF_vect) {
time++;
asm volatile("wdr");
-}
-
+}
+
__attribute__((naked)) void main(void) {
-
+
CLKPR = (1 << CLKPCE); // prescaler 2 = 8 MHz
CLKPR = (1 << CLKPS0); // prescaler 2
- // Configure ports
-
- MCUCR |= (1<<JTD);
- MCUCR |= (1<<JTD); //yes, twice
-
+ // Configure ports
+
+ MCUCR |= (1 << JTD);
+ MCUCR |= (1 << JTD); // yes, twice
+
//--------------------------------------------------------//
- //DDRx : 0 = Input; 1 = Output
- //PORTx : Input -> 0: no PullUp 1: Pullup
+ // DDRx : 0 = Input; 1 = Output
+ // PORTx : Input -> 0: no PullUp 1: Pullup
// Output -> 0: LOW 1: HIGH
PORTB = 0b00000000;
- DDRB = 0b11101110;
+ DDRB = 0b11101110;
PORTC = 0b00000000;
- DDRC = 0b11000000;
+ DDRC = 0b11000000;
PORTD = 0b00001100;
- DDRD = 0b01011000;
-
+ DDRD = 0b01011000;
+
PORTE = 0b00000000;
- DDRE = 0b00000000;
+ DDRE = 0b00000000;
PORTF = 0b00000000;
- DDRF = 0b00000000;
-
- //Timer0 at 30 Hz overflow for ADC control
+ DDRF = 0b00000000;
+
+ // Timer0 at 30 Hz overflow for ADC control
TCCR0B = (5 << CS00);
- TIMSK0 = (1 << TOIE0); //Overflow interrupt`
+ TIMSK0 = (1 << TOIE0); // Overflow interrupt`
- //Init USART
- UCSR1A = (1 << U2X1); // Double Speed Mode
- //UCSR1A = (0 << U2X1); // Single Speed Mode
+ // Init USART
+ UCSR1A = (1 << U2X1); // Double Speed Mode
+ // UCSR1A = (0 << U2X1); // Single Speed Mode
UCSR1B = (1 << RXCIE1) | (0 << TXCIE1) | (0 << RXEN1) | (1 << TXEN1);
- UCSR1C = (3 << UCSZ10); //8 Bit
- UBRR1 = 0x10; // 38k4 (SSM) //0x33; // 38k4 //0x10; //57600
+ UCSR1C = (3 << UCSZ10); // 8 Bit
+ UBRR1 = 0x10; // 38k4 (SSM) //0x33; // 38k4 //0x10; //57600
_delay_ms(10);
UCSR1B |= (1 << RXEN1);
-
-// ADMUX = (3 << REFS0); //reference 2.56V internal
-// ADCSRA = (1 << ADEN) | (0 << ADSC) | (1 << ADIE) | (7 << ADPS0); //enable, start, irq, /128
-// DIDR0 = 0b11111111;
-// DIDR2 = (1 << ADC13D);
-// ADMUX &= 0xe0; ADMUX |= 1; ADCSRB |= (1<<MUX5);
-// ADCSRA |= (1<<ADSC);
+ // ADMUX = (3 << REFS0); //reference 2.56V internal
+ // ADCSRA = (1 << ADEN) | (0 << ADSC) | (1 << ADIE) | (7 << ADPS0);
+ // //enable, start, irq, /128 DIDR0 = 0b11111111; DIDR2 = (1 << ADC13D);
+ // ADMUX &= 0xe0; ADMUX |= 1; ADCSRB |= (1<<MUX5);
+ // ADCSRA |= (1<<ADSC);
+
+ // eeprom
+ shift_register = eeprom_read_byte((uint8_t *)0x21) |
+ eeprom_read_byte((uint8_t *)0x22) << 8 |
+ (uint32_t)eeprom_read_byte((uint8_t *)0x23) << 16 |
+ (uint32_t)eeprom_read_byte((uint8_t *)0x24) << 24;
+ // to read dcdc switch to control the channel LEDs
+ if (shift_register & (uint32_t)1 << 4) {
+ LED_CH0_ON();
+ }
+ if (shift_register & (uint32_t)1 << 12) {
+ LED_CH1_ON();
+ }
+ if (shift_register & (uint32_t)1 << 20) {
+ LED_CH2_ON();
+ }
+ if (shift_register & (uint32_t)1 << 28) {
+ LED_CH3_ON();
+ }
-
-//eeprom
-// shift_register = eeprom_read_byte((uint8_t*)0x21) | eeprom_read_byte((uint8_t*)0x22)<<8;
-// curr_offset = eeprom_read_byte((uint8_t*)0x26);
+ // curr_offset = eeprom_read_byte((uint8_t*)0x26);
- shift_register = 0xffffffff;
+// shift_register = 0xffffffff; //default value
setVoltages();
- LED_CH2_ON();
+ LED1_ON(); // board status - ready to use
+
+ /*
+ * Shift Register
+ Group | Channel | Position | Variable
+ ---------------------------------------
+ 0 | 1 | 0 | CTRL10
+ | 1 | 1 | CTRL11
+ | 1 | 2 | CTRL12
+ ---------------------------------
+ | | 3 | EMPTY
+ | | 4 | DCDC_EN
+ ---------------------------------
+ | 0 | 5 | CTRL00
+ | 0 | 6 | CTRL01
+ | 0 | 7 | CTRL02
+ ---------------------------------------
+ 1 | 1 | 8 | CTRL10
+ | 1 | 9 | CTRL11
+ | 1 | 10 | CTRL12
+ ---------------------------------
+ | | 11 | EMPTY
+ | | 12 | DCDC_EN
+ ---------------------------------
+ | 0 | 13 | CTRL00
+ | 0 | 14 | CTRL01
+ | 0 | 15 | CTRL02
+ ---------------------------------------
+ 2 | 1 | 16 | CTRL10
+ | 1 | 17 | CTRL11
+ | 1 | 18 | CTRL12
+ ---------------------------------
+ | | 19 | EMPTY
+ | | 20 | DCDC_EN
+ ---------------------------------
+ | 0 | 21 | CTRL00
+ | 0 | 22 | CTRL01
+ | 0 | 23 | CTRL02
+ ---------------------------------------
+ 3 | 1 | 24 | CTRL10
+ | 1 | 25 | CTRL11
+ | 1 | 26 | CTRL12
+ ---------------------------------
+ | | 27 | EMPTY
+ | | 28 | DCDC_EN
+ ---------------------------------
+ | 0 | 29 | CTRL00
+ | 0 | 30 | CTRL01
+ | 0 | 31 | CTRL02
+ */
-
// SHIFT_EN_OUTPUT();// Enable output of shift register to mosfet
-// sei();
-
+ // sei();
+
uint16_t lasttime = 0;
-
- while(1) {
-// int n = usb_serial_getchar();
-// if (n >= 0) {
-// isMaster = 1;
-// //SELECT_MASTER();
-// getdata(n);
-// }
-
- if((time != lasttime)) {
+
+ while (1) {
+ // int n = usb_serial_getchar();
+ // if (n >= 0) {
+ // isMaster = 1;
+ // //SELECT_MASTER();
+ // getdata(n);
+ // }
+
+ if ((time != lasttime)) {
}
lasttime = time;
}
jspc29 / avr.git / commitdiff