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blmc
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fix eeprom writing & LED codes

This commit is contained in:
Olaf Rempel 2008-02-19 14:52:02 +01:00
parent 31ded19772
commit 447c7ae484
4 changed files with 41 additions and 29 deletions
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1
blmc.h
View File

@ -34,6 +34,7 @@
#define FLAG_UNDERVOLTAGE 0x100
#define FLAG_OVERCURRENT 0x200
#define FLAG_SELFTESTFAILED 0x400
#define FLAG_INVALIDEEPROM 0x800
struct blmc_ {
uint16_t flags;

25
eeprom.c
View File

@ -20,43 +20,42 @@
#include <util/crc16.h>
#include "eeprom.h"
#include <avr/io.h>
#include "main.h"
static const struct ee_param defaults = DEFAULT_PARAMETERS;
struct ee_param params;
struct ee_param params_in_eeprom EEMEM;
struct ee_param params_in_eeprom EEMEM = DEFAULT_PARAMETERS;
void write_parameters(struct ee_param *p)
void write_parameters(void)
{
uint8_t i;
uint16_t crc = 0x0000;
uint8_t *tmp = (uint8_t *)p;
for (i = 0; i < sizeof(params) -2; i++)
uint8_t *tmp = (uint8_t *)&params;
for (i = 0; i < sizeof(struct ee_param) -2; i++)
crc = _crc_ccitt_update(crc, *tmp++);
params.crc16 = crc;
eeprom_write_block(&p, &params_in_eeprom, sizeof(params));
eeprom_write_block(&params, &params_in_eeprom, sizeof(struct ee_param));
}
void read_parameters(void)
uint8_t read_parameters(void)
{
eeprom_read_block(&params, &params_in_eeprom, sizeof(params));
eeprom_read_block(&params, &params_in_eeprom, sizeof(struct ee_param));
uint8_t i;
uint16_t crc = 0x0000;
uint8_t *tmp = (uint8_t *)&params;
for (i = 0; i < sizeof(params); i++)
for (i = 0; i < sizeof(struct ee_param); i++)
crc = _crc_ccitt_update(crc, *tmp++);
if (crc != 0x0000) {
i = sizeof(params);
i = sizeof(struct ee_param);
uint8_t *src = (uint8_t *)&defaults;
uint8_t *dst = (uint8_t *)&params;
while (i--)
*dst++ = *src++;
write_parameters((struct ee_param *)&params);
write_parameters();
return 1;
}
return 0;
}

4
eeprom.h
View File

@ -34,7 +34,7 @@ struct ee_param {
.voltage_min = 0x000, \
};
void read_parameters(void);
void write_parameters(struct ee_param *p);
uint8_t read_parameters(void);
void write_parameters(void);
#endif

40
main.c
View File

@ -23,9 +23,10 @@
* No Error, Motor running SLOW -
* Current Limit - ON
* i2c Timeout - ON (not implemented yet)
* Undervoltage OFF SLOW (not implemented yet)
* Overcurrent (Hard Limit) OFF FAST (not implemented yet)
* SELFTEST failed SLOW SLOW (not implemented yet)
* Undervoltage OFF SLOW
* Overcurrent (Hard Limit) OFF FAST
* SELFTEST failed FAST FAST (not implemented yet)
* EEPROM invalid SLOW SLOW
*/
#include <avr/io.h>
@ -133,43 +134,54 @@ int main(void)
/* I2C Init: keep Address from bootloader, Auto ACKs with Interrupts */
TWCR = (1<<TWEA) | (1<<TWEN) | (1<<TWIE);
read_parameters();
blmc.flags = 0x00;
if (read_parameters())
blmc.flags |= FLAG_INVALIDEEPROM;
sei();
while (1) {
uint8_t ledX[2] = { 0x00, 0x00 };
/* get motor status: spinup, running or off */
if (blmc.flags & FLAG_RUN_MASK) {
if (blmc.flags & (FLAG_COM_SPINUP | FLAG_PWM_SPINUP))
led[0] = LED_FAST;
ledX[0] = LED_FAST;
else
led[0] = LED_SLOW;
ledX[0] = LED_SLOW;
} else {
led[0] = LED_ON;
ledX[0] = LED_ON;
}
/* soft errors (current limit, i2c timeout) */
if (blmc.flags & FLAG_SOFTERR_MASK)
led[1] = LED_ON;
ledX[1] = LED_ON;
/* hard errors */
if (blmc.flags & FLAG_HARDERR_MASK) {
led[0] = LED_OFF;
if (blmc.flags & FLAG_CURRENTLIMIT) {
led[1] = LED_FAST;
ledX[0] = LED_OFF;
ledX[1] = LED_FAST;
} else if (blmc.flags & FLAG_UNDERVOLTAGE) {
led[1] = LED_SLOW;
ledX[0] = LED_OFF;
ledX[1] = LED_SLOW;
} else if (blmc.flags & FLAG_SELFTESTFAILED) {
led[0] = LED_SLOW;
led[1] = LED_SLOW;
ledX[0] = LED_FAST;
ledX[1] = LED_FAST;
} else if (blmc.flags & FLAG_INVALIDEEPROM) {
ledX[0] = LED_SLOW;
ledX[1] = LED_SLOW;
}
}
if (!(blmc.flags & (FLAG_SOFTERR_MASK | FLAG_HARDERR_MASK)))
led[1] = LED_OFF;
ledX[1] = LED_OFF;
led[0] = ledX[0];
led[1] = ledX[1];
/* do a spinup from main loop (blocking for > 200ms) */
if (blmc.flags & FLAG_COM_SPINUP)