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vertical power les bars working

This commit is contained in:
Lucas Pleß 2013-06-15 05:25:36 +02:00
parent 17be17b75c
commit 92d0e1b3da
1 changed files with 36 additions and 8 deletions
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44
display/software/displayboard/src/main.c
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@ -8,6 +8,7 @@
#include "uart.h"
#define BUFSIZE 40
#define CURRENT_MAX 30000 // 30 Ampere is max
volatile uint16_t syscounter = 0;
volatile uint8_t digitbuffer[6] = { 0,0,0,0,0,0 };
@ -34,6 +35,10 @@ const uint8_t digit_translate[10] = {
63, 6, 91, 79, 102, 109, 125, 7, 127, 111
};
const uint8_t leddigit_translate[9] = {
0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff
};
static void timer_init(void) {
// clock is 8MHz
@ -74,6 +79,31 @@ static void print_sevenseg(uint8_t display, uint16_t value) {
digitbuffer[i+3] = digit_translate[d[i]];
}
}
}
static void print_bar(uint8_t display, uint16_t value, uint16_t max) {
uint16_t x = 0;
float temp = max;
x = (uint16_t)( (value / temp) * 8.0);
if(x > 8) x = 8;
switch(display) {
case LEDS_LOAD:
leddigitbuffer[2] = leddigit_translate[x];
break;
case LEDS_GEN:
leddigitbuffer[3] = leddigit_translate[x];
break;
}
}
static void print_bar_bottom(uint16_t curin, uint16_t curout) {
}
#ifdef DEBUG
@ -175,19 +205,16 @@ void process_command() {
}
}
void work_uart(){
static void work_uart(){
unsigned int c = uart_getc();
if ( !(c & UART_NO_DATA) ) {
data_in[data_count] = c;
if (data_in[data_count] == 'B') { // finish reading when newline is received
if (data_in[data_count] == 'B') {
data_count = 0;
memcpy(command_in, data_in, BUFSIZE);
// Now clear data_in, the UART can reuse it now
memset(data_in, 0, BUFSIZE);
process_command();
@ -198,8 +225,6 @@ void work_uart(){
}
int main(void) {
ports_init();
timer_init();
@ -210,12 +235,15 @@ int main(void) {
work_uart();
if(syscounter >= 200) {
if(syscounter >= 100) {
uart_putc('a'); // send a to receive values
print_sevenseg(0, power_gen);
print_sevenseg(1, power_load);
print_bar(LEDS_GEN, current_in, CURRENT_MAX);
print_bar(LEDS_LOAD, current_out, CURRENT_MAX);
syscounter = 0;
}
}