diff options
Diffstat (limited to 'crypto/ssd1306.c')
| -rw-r--r-- | crypto/ssd1306.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/crypto/ssd1306.c b/crypto/ssd1306.c index 95cab2d..7421669 100644 --- a/crypto/ssd1306.c +++ b/crypto/ssd1306.c @@ -14,7 +14,7 @@ static void i2c_delay () { - nrf_delay_us (10000); + nrf_delay_us (1); } static void @@ -306,9 +306,27 @@ sd_on (void) void sd_doodle (void) { - static uint8_t i; + static uint8_t d[8]; + random_vector_generate(d,1); + uint32_t a; - sd_dat (i++); + + a=d[0]; + a%=63; + a*=8; + a+=768; + + gt_read(a,d,sizeof(d)); + + + sd_dat (d[0]); + sd_dat (d[1]); + sd_dat (d[2]); + sd_dat (d[3]); + sd_dat (d[4]); + sd_dat (d[5]); + sd_dat (d[6]); + sd_dat (d[7]); } |