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For new LCD firmware, drop need to limit data to 31 bytes

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The previous Mizar32 LCD firmware had a limit of 31 bytes per
data message, while the new has no limit. This commit drops the
code that used to split long data transfers into 31-byte chunks.
This commit is contained in:
Martin Guy 2011-12-10 17:51:03 +01:00
parent 991bcec20d
commit fb1d9c464c
1 changed files with 7 additions and 13 deletions
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20
src/platform/avr32/lcd.c
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@ -43,21 +43,15 @@ static void lcd_stop()
// "address" is LCD_CMD for LCD commands, LCD_DATA for LCD data. // "address" is LCD_CMD for LCD commands, LCD_DATA for LCD data.
static int send_generic( u8 address, const u8 *data, int len ) static int send_generic( u8 address, const u8 *data, int len )
{ {
lcd_start();
i2c_start_cond();
i2c_write_byte( address );
while ( len > 0 ) { while ( len > 0 ) {
int nbytes; // number of bytes sent in this I2C packet i2c_write_byte( *data++ );
len--;
lcd_start();
i2c_start_cond();
i2c_write_byte( address );
// Mizar32 LCD module has a maximum of 31 bytes per data packet
nbytes = 0;
while ( len > 0 && nbytes < 31 ) {
i2c_write_byte( *data++ );
nbytes++; len--;
}
i2c_stop_cond();
lcd_stop();
} }
i2c_stop_cond();
lcd_stop();
return 0; return 0;
} }