First, reset the microcontroller.
``` bash
-make clean && make NUMBER=55 && sudo dfu-programmer atmega32u4 erase --force && sudo make program_bootloader
+make clean && make NUMBER=55 && sudo dfu-programmer atmega32u4 erase && sudo make program_bootloader
```
Don't forget to change the Serial Number (here 55) to the correct value.
Note the serial number on a sticker on the board and add it to a database.
+If the board was already flashed, the HWB Pin has to be pulled to GND and simuktaneously the RESET Pin has to be pulled to GND. NOw the board enters the Bootloader.
+
+After flashing with microUSB, please unplug the cable and plug the adapter. Keep in mind to plug the GND connection too.
+
______________________________________________________________________________________________________________
## Register definition
-| Registers | description |
-|-----------|--------------------------------------------
-| 0 | DCDC On/Off -> not available |
-| 1 | DCDC set voltage adjustment resistors |
-| 2 | Voltage V_in |
-| 3 | Current C_in |
-| 4 | Temperature |
-| 5 | [15:2] Frimware; [1] Switch ; [0] LED |
+| Registers | description |
+|-----------|-----------------------------------------------------------
+| 0 | DCDC On/Off -> not available |
+| 1 | DCDC set voltage adjustment resistors |
+| 2 | Voltage V_in |
+| 3 | Current C_in |
+| 4 | Temperature |
+| 5 | [15:4] Firmware; [3:2] reserved; [1] Switch; [0] LED |
______________________________________________________________________________________________________________
All in all 10 characters
close with a "\n", so a correct data fromat would be e.g. "RF2012FE51\n"
+
+## Usage
+
+The DCDC boards receives messages over UART and microUSB. It sends out the messaages *just* over UART. The UART Baud rate is 57600.
+For a controlled communication, please use the perl script *./dcdc.pl*.
}
+sub PrintAnswerNice {
+ my ($s) = @_;
+ my $FSR = 0.002; #Full Sclae Range is set to +-4.096V; LSB Size is 2mV
+ if (substr($s,0,1) ne 'A') {die 'not an correct Answer from DCDC board'}
+ my $command = hex(substr($s,5,1));
+ my $ch = hex(substr($s,4,1));
+ my $uC = hex(substr($s,1,2));
+ my $answ = hex(substr($s,6));
+
+ print "-----------------------------------------------\n";
+ print "Board: ".$uC."\t";
+ print "Channel: ".$ch."\n";
+ print "-----------------------------------------------\n";
+
+ if ($command == 1) { # resistor adjustment values
+ print "Resistors active: ";
+ print "SEL0 : ".(($answ>> 0)&0xF)."\n";
+ print "\t\t SEL1 : ".(($answ>> 4)&0xF)."\n";
+ print "\t\t SEL2 : ".(($answ>> 8)&0xF)."\n";
+ print "\t\t SEL3 : ".(($answ>>12)&0xF)."\n";
+ }
+ if ($command == 2) { # Voltage
+ $answ = $answ >> 4;
+ my $calc = (($answ&0x7FF)-(($answ>>11)&0x1)*2048)*$FSR*11;# *11 to calculate real input value from voltage divider
+ printf "measured Voltage @ Input : %.3f Volt (RAW: 0x%x)\n", ($calc) , ($answ);
+ }
+ if ($command == 3) { # Current
+ $answ = $answ >> 4;
+ my $calc = (($answ&0x7FF)-(($answ>>11)&0x1)*2048)*$FSR*2; # 500mV/A -> Thats why multiplied by 2
+ printf "measured Current @ Input : %.3f Ampere (RAW: 0x%x)\n", ($calc) , ($answ);
+ }
+ if ($command == 4) { # Temperature
+ $answ = $answ >> 4;
+ my $calc = (($answ&0x7FF)-(($answ>>11)&0x1)*2048)*0.125;
+ printf "measured temperature : %.2f°C (RAW: 0x%x)\n", ($calc) , ($answ);
+ }
+ if ($command == 5) { #Infos
+ print "Firmware : ".($answ>>4)."\n";
+ print "SEL status : ".(($answ>>1) & 0x1)."\n";
+ print "LED status : ".($answ & 0x1)."\n";
+ }
+ print "\n";
+
+}
+
sub SendCmdShort {
my ($reg) = @_;
# microcontroller number in chain
my $uC = $ARGV[1];
if (substr($uC,0,2) eq "0x") {$uC = hex(substr($uC,2));}
- if ($uC > $num) {
+ if ($uC >= $num) {
die "This microcontroller Number is not allowed! \n";
}
my $rw = "R";
my $val = 0x0000;
my $cmd = sprintf("%s%02x0%01x%01x%04x",$rw,$uC,$ch,$reg,$val);
- print $cmd."\n";
- PrintAnswer(Cmd($cmd)) #Answer without \n
+ #print $cmd."\n";
+ PrintAnswerNice(Cmd($cmd)) #Answer without \n
} else {
die "Not all arguements were specified!\n";
}
exit;
}
$port->user_msg('ON');
- $port->baudrate(57600);
+ $port->baudrate(57600);
$port->parity("none");
$port->databits(8);
$port->stopbits(1);
# microcontroller number in chain
$uC = $ARGV[1];
if (substr($uC,0,2) eq "0x") {$uC = hex(substr($uC,2));}
- if ($uC > $num) {
+ if ($uC >= $num) {
die "This microcontroller Number is not allowed! \n";
}
}
my $cmd = sprintf("%s%02x0%01x%01x%04x",$rw,$uC,$ch,$reg,$val);
print $cmd."\n";
- PrintAnswer(Cmd($cmd)) #Answer without \n
+ PrintAnswerNice(Cmd($cmd)) #Answer without \n
} else {
die "Not all arguements were specified!\n";
# microcontroller number in chain
$uC = $ARGV[1];
if (substr($uC,0,2) eq "0x") {$uC = hex(substr($uC,2));}
- if ($uC > $num) {
+ if ($uC >= $num) {
die "This microcontroller Number is not allowed! \n";
}
# Infos
if($mode == 7) {SendCmdShort(0x5)}
-
-
-
-
-
-# if($args <= 1) {
-# print " Ch\t Curr.\t AvgCur\t Limit\n";
-
-# for my $i (0..$num-1) {
-# next if ($args >= 1 && $ch != $i);
-# my $n = sprintf("%02x",$i);
-
-# my $s = Cmd("S$n?");
-# my $curr = Cmd("C$n?");
-# my $avg = Cmd("D$n?");
-# my $lim = Cmd("L$n?");
-
-# if(($s & 0xf0) == 0xe0) {printf(" $n\tERR\t\t (%3i)\n",$lim&0x3FF);}
-# if(($s & 0xff) == 0x00) {printf(" $n\t--- \t\t (%3i)\n",$lim&0x3FF);}
-# if(($s & 0xff) == 0x01) {printf(" $n\t%3imA\t %3imA\t (%3i)\n",$curr&0x7ff,$avg&0x7ff,$lim&0x3FF);}
-# }
-
-# }
\ No newline at end of file
#define FIRMWARE_VERSION 0x001
-#define LED_ON() PORT
B |= (1<<PE6)
-#define LED_OFF() PORT
B &= ~(1<<PE6)
+#define LED_ON() PORT
E |= (1<<PE6)
+#define LED_OFF() PORT
E &= ~(1<<PE6)
#define SHCP_HIGH() PORTF |= (1<<PF5)
#define SHCP_LOW() PORTF &= ~(1<<PF5)
uint16_t adc_volt = 0;
uint16_t adc_curr = 0;
uint16_t adc_temp = 0;
-uint16_t information = 0;
+uint16_t information = 1;
+uint8_t isMaster = 0;
uint8_t nib_to_hex(uint16_t in, uint8_t nib) {
uint8_t t = (in >> (nib*4)) & 0xF;
void setVoltages(void){
cli();
STCP_LOW();
- for (uint8_t i = 0; i < 4; i++ ){
- for (unsigned int j = 0; j < 5; j++){// 5 times to fill also Q7S
+ for (uint8_t i = 0; i < 4; i++ ){ // channel; 0 == channel 3; 3 == channel0;
+ for (unsigned int j = 0; j < 4; j++){// fill up the 8 bit
SHCP_LOW();
SHIFT_DATA_LOW();
SHCP_HIGH(); // write
information |= (FIRMWARE_VERSION<<4);
}
+
+/***
+ * ADC: ADS1018
+ * 12 bits left aligned;
+ * Temperature: (($answ&0x7FF)-(($answ>>11)&0x1)*2048)*0.125;
+ * Voltage: (($answ&0x7FF)-(($answ>>11)&0x1)*2048)*$FSR*11;# *11 due to voltage divider; FSR = 2mV
+ * Current: (($answ&0x7FF)-(($answ>>11)&0x1)*2048)*$FSR*2; # 500mV/A -> Thats why multiplied by 2
+ ***/
+
uint16_t conversion_ADC(uint8_t mode) {
uint8_t get_value_1;
uint8_t get_value_2;
SPDR = 0b00000000; // LSB=Byte2
while ((SPSR & (1<<SPIF)) == 0) {};
get_value_2 = SPDR;
-
return ((get_value_1<<8)|(get_value_2))&0xFFFF;
}
* 2 | Voltage V_in
* 3 | Current C_in
* 4 | Temperature
- * 5 | [15:2] Frimware; [1] Switch ; [0] LED
+ * 5 | [15:4] Firmware; [3:2] reserved; [1] Switch ; [0] LED
***/
void getdata(uint8_t buf) {
ISR(USART1_RX_vect) {
uint8_t buf = UDR1;
- getdata(buf);
+ if(isMaster == 0) {
+ getdata(buf);
+ } else {
+ //usb_serial_putchar(buf);
+ }
}
ISR(USART1_UDRE_vect) {
CLKPR = (1 << CLKPCE); // prescaler 2 = 8 MHz
CLKPR = (1 << CLKPS0); // prescaler 2
- //usb_init();
-
-//Channels 0 1 2 3: PD4, PB6, PF6, PF1
-//Buttons 0 1 2 3: PD1, PD0, PB7, PB3
-//ADC ref: PF0(0,0)
-//Sense 0 1 2 3: PD6(9,3+MUX5), PD7(10,4+MUX5), PF7(7,7), PF4(4,4) (channel, ADMUX value)
-//LED 0: PE6
-//Select: PC6
+ usb_init();
// Configure ports
MCUCR |= (1<<JTD);
MCUCR |= (1<<JTD); //yes, twice
-
+
//--------------------------------------------------------//
//DDRx : 0 = Input; 1 = Output
//PORTx : Input -> 0: no PullUp 1: Pullup
//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; //57600
+ UBRR1 = 0x10; // 38k4 (SSM) //0x33; // 38k4 //0x10; //57600
_delay_ms(10);
UCSR1B |= (1 << RXEN1);
sei();
uint8_t ADC_State = 0; // 0: start of uC; 1: Volt; 2: Current; 3: Temp
uint16_t lasttime = 0;
- while(1) {
+
+ while(1) {
+ int n = usb_serial_getchar();
+ if (n >= 0) {
+ isMaster = 1;
+ //SELECT_MASTER();
+ getdata(n);
+ }
if((time != lasttime) && ((time %10) == 0)) {
//~330us for each conversion
- /*if (ADC_State == 3) {adc_temp = read_ADC(); ADC_State = 0;}
+ if (ADC_State == 3) {adc_temp = read_ADC(); ADC_State = 0;}
if (ADC_State == 2) {adc_volt = read_ADC(); ADC_State = 3;}
if (ADC_State == 1) {adc_curr = read_ADC(); ADC_State = 2;}
if (ADC_State == 0) ADC_State = 1;
conversion_ADC(ADC_State - 1);
- */
}
lasttime = time;
// You can change these to give your code its own name. On Windows,
// these are only used before an INF file (driver install) is loaded.
#define STR_MANUFACTURER L"TRB3"
-#define STR_PRODUCT L"Power48"
+#define STR_PRODUCT L"DCDC"
// All USB serial devices are supposed to have a serial number
// (according to Microsoft). On windows, a new COM port is created
jspc29 / avr.git / commitdiff