search

ikopiev / ucglib

Automatically exported from code.google.com/p/ucglib
Other
0 stars 0 forks source link

improve sw spi speed #14

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 

In the procedure
static int16_t ucg_com_arduino_generic_SW_SPI(ucg_t *ucg, int16_t msg, uint16_t 
arg, uint8_t *data)

the call to

  ucg_com_arduino_init_shift_out(ucg->pin_list[UCG_PIN_SDA], 

could be done during powerup and CD

Original issue reported on code.google.com by olikr...@gmail.com on 26 Feb 2014 at 7:28

GoogleCodeExporter commented 8 years ago 
9 wire sw spi also need imrovement

Original comment by olikr...@gmail.com on 28 Feb 2014 at 4:44

GoogleCodeExporter commented 8 years ago 
Improvement:
  ST7735, Arduino Uno, SW SPI       Text:  2.0      Box: 3.3        Gradient:  2.2
  ST7735, Arduino Uno, SW SPI       Text:  2.2      Box: 3.4        Gradient:  2.4

Original comment by olikr...@gmail.com on 27 Apr 2014 at 3:54

GoogleCodeExporter commented 8 years ago 
move improvement of SW SPI for 9 bit SPI to some future release.

Original comment by olikr...@gmail.com on 27 Apr 2014 at 3:56