diff options
Diffstat (limited to 'boards/base/STM32F746-Discovery/stm32f7_i2c.c')
| -rw-r--r-- | boards/base/STM32F746-Discovery/stm32f7_i2c.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/boards/base/STM32F746-Discovery/stm32f7_i2c.c b/boards/base/STM32F746-Discovery/stm32f7_i2c.c index b0fa8163..d1e2ed28 100644 --- a/boards/base/STM32F746-Discovery/stm32f7_i2c.c +++ b/boards/base/STM32F746-Discovery/stm32f7_i2c.c @@ -1,3 +1,4 @@ +#include "gfx.h" #include "stm32f7_i2c.h" /* @@ -119,6 +120,8 @@ void i2cWriteReg(I2C_TypeDef* i2c, uint8_t slaveAddr, uint8_t regAddr, uint8_t v void i2cRead(I2C_TypeDef* i2c, uint8_t slaveAddr, uint8_t* data, uint16_t length) { + int i; + // We are currently not able to read more than 255 bytes at once if (length > 255) { return; @@ -128,7 +131,7 @@ void i2cRead(I2C_TypeDef* i2c, uint8_t slaveAddr, uint8_t* data, uint16_t length _i2cConfigTransfer(i2c, slaveAddr, length, I2C_CR2_RD_WRN | I2C_CR2_AUTOEND, I2C_CR2_START); // Transmit the whole buffer - for (int i = 0; i < length; i++) { + for (i = 0; i < length; i++) { while (!(i2c->ISR & I2C_ISR_RXNE)); data[i] = i2c->RXDR; } |