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add/fix mcp23017 i2c gpio expander functions and tests

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Change-Id: Ia2e5a1bf3f97272931014e54e587109297556c03
This commit is contained in:
Joachim Steiger
2019-10-24 18:09:05 +02:00
parent 3feadfa910
commit f7f1ea864d
6 changed files with 52 additions and 9 deletions
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2
firmware/libboard/octsimtest/include/i2c.h
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@@ -22,7 +22,7 @@ void i2c_pin_init(void);
bool i2c_write_byte(bool send_start, bool send_stop, uint8_t byte);
uint8_t i2c_read_byte(bool nack, bool send_stop);
static void i2c_stop_cond(void);
void i2c_stop_cond(void);
int eeprom_write_byte(uint8_t slave, uint8_t addr, uint8_t byte);
int eeprom_read_byte(uint8_t slave, uint8_t addr);