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E32_433开发板程序

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zhongxuanzhen
2026-04-10 20:26:51 +08:00
commit 7a39359dd0
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Core/Src/u8g2_hal.c Normal file
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#include "u8g2_hal.h"
#include "menuConfig.h"
#include "i2c.h"
#define HARDWARE_I2C
#define OLED_I2C_DEV_ADDRESS 0x78
#ifdef HARDWARE_I2C
static uint8_t u8x8_byte_hw_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) {
uint8_t* data = (uint8_t*) arg_ptr;
switch(msg) {
case U8X8_MSG_BYTE_SEND:
while( arg_int-- > 0 ) {
///@todo <20>޸<EFBFBD>
/* ==================================== */
I2C2->DR = *data++;
while( __HAL_I2C_GET_FLAG(&hi2c2, I2C_FLAG_TXE) == RESET );
/* ==================================== */
}
break;
case U8X8_MSG_BYTE_INIT:
/* add your custom code to init i2c subsystem */
break;
case U8X8_MSG_BYTE_SET_DC:
/* ignored for i2c */
break;
case U8X8_MSG_BYTE_START_TRANSFER:
///@todo <20>޸<EFBFBD>
/* ==================================== */
/* Wait until BUSY flag is reset */
while( __HAL_I2C_GET_FLAG( &hi2c2, I2C_FLAG_BUSY ) == SET );
/* Disable Pos */
CLEAR_BIT( I2C2->CR1, I2C_CR1_POS );
/* Generate Start */
SET_BIT( I2C2->CR1, I2C_CR1_START );
/* Wait until SB flag is set */
while( __HAL_I2C_GET_FLAG( &hi2c2, I2C_FLAG_SB ) == RESET );
/* Send slave address */
I2C2->DR = I2C_7BIT_ADD_WRITE( OLED_I2C_DEV_ADDRESS );
/* Wait until ADDR flag is set */
while ( __HAL_I2C_GET_FLAG( &hi2c2, I2C_FLAG_ADDR) == RESET );
/* Clear ADDR flag */
__HAL_I2C_CLEAR_ADDRFLAG( &hi2c2 );
/* Wait until TXE flag is set */
while( __HAL_I2C_GET_FLAG(&hi2c2, I2C_FLAG_TXE) == RESET );
/* ==================================== */
break;
case U8X8_MSG_BYTE_END_TRANSFER:
///@todo <20>޸<EFBFBD>
/* ==================================== */
/* Generate Stop */
SET_BIT( I2C2->CR1, I2C_CR1_STOP );
/* ==================================== */
break;
default:
return 0;
}
return 1;
}
static uint8_t u8x8_gpio_and_delay_hw(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) {
switch (msg) {
case U8X8_MSG_DELAY_100NANO: // delay arg_int * 100 nano seconds
break;
case U8X8_MSG_DELAY_10MICRO: // delay arg_int * 10 micro seconds
break;
case U8X8_MSG_DELAY_MILLI: // delay arg_int * 1 milli second
HAL_Delay(1);
break;
case U8X8_MSG_DELAY_I2C: // arg_int is the I2C speed in 100KHz, e.g. 4 = 400 KHz
break; // arg_int=1: delay by 5us, arg_int = 4: delay by 1.25us
case U8X8_MSG_GPIO_I2C_CLOCK: // arg_int=0: Output low at I2C clock pin
break; // arg_int=1: Input dir with pullup high for I2C clock pin
case U8X8_MSG_GPIO_I2C_DATA: // arg_int=0: Output low at I2C data pin
break; // arg_int=1: Input dir with pullup high for I2C data pin
case U8X8_MSG_GPIO_MENU_SELECT:
u8x8_SetGPIOResult(u8x8, /* get menu select pin state */ 0);
break;
case U8X8_MSG_GPIO_MENU_NEXT:
u8x8_SetGPIOResult(u8x8, /* get menu next pin state */ 0);
break;
case U8X8_MSG_GPIO_MENU_PREV:
u8x8_SetGPIOResult(u8x8, /* get menu prev pin state */ 0);
break;
case U8X8_MSG_GPIO_MENU_HOME:
u8x8_SetGPIOResult(u8x8, /* get menu home pin state */ 0);
break;
default:
u8x8_SetGPIOResult(u8x8, 1); // default return value
break;
}
return 1;
}
//static void HardWare_I2C2_GPIOInit(void)
//{
//}
#endif
void u8g2Init(u8g2_t *u8g2)
{
#ifdef HARDWARE_I2C
// HardWare_I2C2_GPIOInit();//<2F><><EFBFBD><EFBFBD>i2c.c<><63><EFBFBD><EFBFBD><EFBFBD>ɳ<EFBFBD>ʼ<EFBFBD><CABC>
u8g2_Setup_ssd1306_i2c_128x64_noname_f(u8g2, U8G2_R0, u8x8_byte_hw_i2c, u8x8_gpio_and_delay_hw);
#endif
u8g2_InitDisplay(u8g2);
u8g2_SetPowerSave(u8g2, 0);
u8g2_ClearBuffer(u8g2);
}