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start working with DMA

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This commit is contained in:
Edward Emelianov
2025-09-18 23:54:01 +03:00
parent 3e701f147f
commit 934f4fbddd
9 changed files with 171 additions and 122 deletions
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8
F3:F303/I2C_scan/i2c.h
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@@ -20,7 +20,7 @@
#include <stdint.h>
#define I2C_ADDREND (0x80)
#define I2C_BUFSIZE (1024)
#define I2C_BUFSIZE (2048)
typedef enum{
I2C_SPEED_10K,
@@ -35,12 +35,12 @@ extern i2c_speed_t i2c_curspeed;
extern volatile uint8_t i2c_scanmode;
// timeout of I2C bus in ms
#define I2C_TIMEOUT (100)
#define I2C_TIMEOUT (5)
void i2c_setup(i2c_speed_t speed);
uint8_t *read_i2c(uint8_t addr, uint16_t nbytes);
uint8_t *read_i2c_reg(uint8_t addr, uint8_t reg, uint16_t nbytes);
uint16_t *read_i2c_reg16(uint8_t addr, uint16_t reg16, uint16_t nbytes);
uint8_t *read_i2c_reg(uint8_t addr, uint8_t reg, uint16_t nbytes, uint8_t isdma);
uint16_t *read_i2c_reg16(uint8_t addr, uint16_t reg16, uint16_t nbytes, uint8_t isdma);
uint8_t write_i2c(uint8_t addr, uint8_t *data, uint16_t nbytes);
uint8_t write_i2c_dma(uint8_t addr, uint8_t *data, uint16_t nbytes);