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Add address generation in I²C write

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According to the datasheet "6.2.1 I²C write" (and to my user C code), the address of each register has to be specified.
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Vincent Poulailleau 2019-06-07 17:18:13 +02:00 committed by GitHub
parent adf3b40195
commit fce2a5aced
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1 changed files with 13 additions and 10 deletions
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@ -280,16 +280,19 @@ int8_t user_i2c_write(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data, uint1
/*
* Data on the bus should be like
* |------------+---------------------|
* | I2C action | Data |
* |------------+---------------------|
* | Start | - |
* | Write | (reg_addr) |
* | Write | (reg_data[0]) |
* | Write | (....) |
* | Write | (reg_data[len - 1]) |
* | Stop | - |
* |------------+---------------------|
* |------------+----------------------|
* | I2C action | Data |
* |------------+----------------------|
* | Start | - |
* | Write | (reg_addr) |
* | Write | (reg_data[0]) |
* | Write | (reg_addr + 1) |
* | Write | (reg_data[1]) |
* | Write | (....) |
* | Write | (reg_addr + len - 1) |
* | Write | (reg_data[len - 1]) |
* | Stop | - |
* |------------+----------------------|
*/
return rslt;