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rp2/machine_i2c: Allow boards to configure I2C pins using new macros.

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Mike Causer 2021-07-09 09:51:59 +10:00 committed by Damien George
parent 4f2a10bfc9
commit 79da7757cc
1 changed files with 12 additions and 6 deletions
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18
ports/rp2/machine_i2c.c
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@ -33,10 +33,16 @@
#include "hardware/i2c.h" #include "hardware/i2c.h"
#define DEFAULT_I2C_FREQ (400000) #define DEFAULT_I2C_FREQ (400000)
#define DEFAULT_I2C0_SCL (9)
#define DEFAULT_I2C0_SDA (8) #ifndef MICROPY_HW_I2C0_SCL
#define DEFAULT_I2C1_SCL (7) #define MICROPY_HW_I2C0_SCL (9)
#define DEFAULT_I2C1_SDA (6) #define MICROPY_HW_I2C0_SDA (8)
#endif
#ifndef MICROPY_HW_I2C1_SCL
#define MICROPY_HW_I2C1_SCL (7)
#define MICROPY_HW_I2C1_SDA (6)
#endif
// SDA/SCL on even/odd pins, I2C0/I2C1 on even/odd pairs of pins. // SDA/SCL on even/odd pins, I2C0/I2C1 on even/odd pairs of pins.
#define IS_VALID_SCL(i2c, pin) (((pin) & 1) == 1 && (((pin) & 2) >> 1) == (i2c)) #define IS_VALID_SCL(i2c, pin) (((pin) & 1) == 1 && (((pin) & 2) >> 1) == (i2c))
@ -52,8 +58,8 @@ typedef struct _machine_i2c_obj_t {
} machine_i2c_obj_t; } machine_i2c_obj_t;
STATIC machine_i2c_obj_t machine_i2c_obj[] = { STATIC machine_i2c_obj_t machine_i2c_obj[] = {
{{&machine_hw_i2c_type}, i2c0, 0, DEFAULT_I2C0_SCL, DEFAULT_I2C0_SDA, 0}, {{&machine_hw_i2c_type}, i2c0, 0, MICROPY_HW_I2C0_SCL, MICROPY_HW_I2C0_SDA, 0},
{{&machine_hw_i2c_type}, i2c1, 1, DEFAULT_I2C1_SCL, DEFAULT_I2C1_SDA, 0}, {{&machine_hw_i2c_type}, i2c1, 1, MICROPY_HW_I2C1_SCL, MICROPY_HW_I2C1_SDA, 0},
}; };
STATIC void machine_i2c_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) { STATIC void machine_i2c_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {