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Merge branch 'master' of https://github.com/olikraus/u8g2

This commit is contained in:
kraus 2021-07-06 23:13:26 +02:00
parent 5149b440dd 4fd923d7cb
commit 92cdee9d97
1 changed files with 5 additions and 3 deletions
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8
sys/raspi_gpio/hal/raspi_gpio_hal.c
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@ -66,7 +66,8 @@ uint8_t u8x8_gpio_and_delay_raspi_gpio_hal(u8x8_t *u8x8, uint8_t msg, uint8_t ar
case U8X8_MSG_GPIO_AND_DELAY_INIT: // called once during init phase of u8g2/u8x8
if (!bcm2835_init())
exit(1);
atexit(bcm2835_close);
atexit((void (*) (void))bcm2835_close);
for( i = 0; i < U8X8_PIN_CNT; i++ )
if ( u8x8->pins[i] != U8X8_PIN_NONE )
{
@ -95,8 +96,9 @@ uint8_t u8x8_gpio_and_delay_raspi_gpio_hal(u8x8_t *u8x8, uint8_t msg, uint8_t ar
delaynanoseconds((unsigned long)arg_int*1000000UL);
break;
case U8X8_MSG_DELAY_I2C: // arg_int is the I2C speed in 100KHz, e.g. 4 = 400 KHz
//delaynanoseconds(1250UL*arg_int);
delaynanoseconds(1000UL*arg_int);
// correct value would be 10 for 100KHz, but we use 1
// delay seems to be huge by the rest of the system
bcm2835_delayMicroseconds(1);
break; // arg_int=1: delay by 5us, arg_int = 4: delay by 1.25us
case U8X8_MSG_GPIO_MENU_SELECT: