|
|
|
@ -58,23 +58,17 @@ |
|
|
|
/* SLA+R */ |
|
|
|
#define CMD_WAIT 0x00 |
|
|
|
#define CMD_READ_VERSION 0x01 |
|
|
|
#define CMD_READ_MEMORY 0x02 |
|
|
|
#define CMD_ACCESS_MEMORY 0x02 |
|
|
|
/* internal mappings */ |
|
|
|
#define CMD_READ_CHIPINFO (0x10 | CMD_READ_MEMORY) |
|
|
|
#define CMD_READ_FLASH (0x20 | CMD_READ_MEMORY) |
|
|
|
#define CMD_READ_EEPROM (0x30 | CMD_READ_MEMORY) |
|
|
|
#define CMD_READ_PARAMETERS (0x40 | CMD_READ_MEMORY) /* only in APP */ |
|
|
|
#define CMD_ACCESS_CHIPINFO (0x10 | CMD_ACCESS_MEMORY) |
|
|
|
#define CMD_ACCESS_FLASH (0x20 | CMD_ACCESS_MEMORY) |
|
|
|
#define CMD_ACCESS_EEPROM (0x30 | CMD_ACCESS_MEMORY) |
|
|
|
|
|
|
|
/* SLA+W */ |
|
|
|
#define CMD_SWITCH_APPLICATION CMD_READ_VERSION |
|
|
|
#define CMD_WRITE_MEMORY CMD_READ_MEMORY |
|
|
|
/* internal mappings */ |
|
|
|
#define CMD_BOOT_BOOTLOADER (0x10 | CMD_SWITCH_APPLICATION) /* only in APP */ |
|
|
|
#define CMD_BOOT_APPLICATION (0x20 | CMD_SWITCH_APPLICATION) |
|
|
|
#define CMD_WRITE_CHIPINFO (0x10 | CMD_WRITE_MEMORY) /* invalid */ |
|
|
|
#define CMD_WRITE_FLASH (0x20 | CMD_WRITE_MEMORY) |
|
|
|
#define CMD_WRITE_EEPROM (0x30 | CMD_WRITE_MEMORY) |
|
|
|
#define CMD_WRITE_PARAMETERS (0x40 | CMD_WRITE_MEMORY) /* only in APP */ |
|
|
|
|
|
|
|
/* CMD_SWITCH_APPLICATION parameter */ |
|
|
|
#define BOOTTYPE_BOOTLOADER 0x00 /* only in APP */ |
|
|
|
@ -84,7 +78,6 @@ |
|
|
|
#define MEMTYPE_CHIPINFO 0x00 |
|
|
|
#define MEMTYPE_FLASH 0x01 |
|
|
|
#define MEMTYPE_EEPROM 0x02 |
|
|
|
#define MEMTYPE_PARAMETERS 0x03 /* only in APP */ |
|
|
|
|
|
|
|
/* |
|
|
|
* LED_GN flashes with 20Hz (while bootloader is running) |
|
|
|
@ -224,7 +217,7 @@ static uint8_t TWI_data_write(uint8_t bcnt, uint8_t data) |
|
|
|
switch (data) |
|
|
|
{ |
|
|
|
case CMD_SWITCH_APPLICATION: |
|
|
|
case CMD_WRITE_MEMORY: |
|
|
|
case CMD_ACCESS_MEMORY: |
|
|
|
/* no break */ |
|
|
|
|
|
|
|
case CMD_WAIT: |
|
|
|
@ -254,19 +247,19 @@ static uint8_t TWI_data_write(uint8_t bcnt, uint8_t data) |
|
|
|
ack = 0x00; |
|
|
|
break; |
|
|
|
|
|
|
|
case CMD_WRITE_MEMORY: |
|
|
|
case CMD_ACCESS_MEMORY: |
|
|
|
if (data == MEMTYPE_CHIPINFO) |
|
|
|
{ |
|
|
|
cmd = CMD_WRITE_CHIPINFO; |
|
|
|
cmd = CMD_ACCESS_CHIPINFO; |
|
|
|
} |
|
|
|
else if (data == MEMTYPE_FLASH) |
|
|
|
{ |
|
|
|
cmd = CMD_WRITE_FLASH; |
|
|
|
cmd = CMD_ACCESS_FLASH; |
|
|
|
} |
|
|
|
#if (EEPROM_SUPPORT) |
|
|
|
else if (data == MEMTYPE_EEPROM) |
|
|
|
{ |
|
|
|
cmd = CMD_WRITE_EEPROM; |
|
|
|
cmd = CMD_ACCESS_EEPROM; |
|
|
|
} |
|
|
|
#endif /* (EEPROM_SUPPORT) */ |
|
|
|
else |
|
|
|
@ -290,7 +283,7 @@ static uint8_t TWI_data_write(uint8_t bcnt, uint8_t data) |
|
|
|
default: |
|
|
|
switch (cmd) |
|
|
|
{ |
|
|
|
case CMD_WRITE_FLASH: |
|
|
|
case CMD_ACCESS_FLASH: |
|
|
|
buf[bcnt -4] = data; |
|
|
|
if (bcnt >= sizeof(buf) +3) |
|
|
|
{ |
|
|
|
@ -300,7 +293,7 @@ static uint8_t TWI_data_write(uint8_t bcnt, uint8_t data) |
|
|
|
break; |
|
|
|
|
|
|
|
#if (EEPROM_SUPPORT) |
|
|
|
case CMD_WRITE_EEPROM: |
|
|
|
case CMD_ACCESS_EEPROM: |
|
|
|
write_eeprom_byte(data); |
|
|
|
break; |
|
|
|
#endif /* (EEPROM_SUPPORT) */ |
|
|
|
@ -330,17 +323,17 @@ static uint8_t TWI_data_read(uint8_t bcnt) |
|
|
|
data = info[bcnt]; |
|
|
|
break; |
|
|
|
|
|
|
|
case CMD_READ_CHIPINFO: |
|
|
|
case CMD_ACCESS_CHIPINFO: |
|
|
|
bcnt %= sizeof(chipinfo); |
|
|
|
data = chipinfo[bcnt]; |
|
|
|
break; |
|
|
|
|
|
|
|
case CMD_READ_FLASH: |
|
|
|
case CMD_ACCESS_FLASH: |
|
|
|
data = pgm_read_byte_near(addr++); |
|
|
|
break; |
|
|
|
|
|
|
|
#if (EEPROM_SUPPORT) |
|
|
|
case CMD_READ_EEPROM: |
|
|
|
case CMD_ACCESS_EEPROM: |
|
|
|
data = read_eeprom_byte(); |
|
|
|
break; |
|
|
|
#endif /* (EEPROM_SUPPORT) */ |
|
|
|
|
