Merge pull request #754 from stickbreaker/master
Correct 10bit Device address handling.
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commit
95123681d5
@ -177,10 +177,13 @@ i2c_err_t i2cWrite(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * dat
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//CMD WRITE(ADDRESS + DATA)
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if(!index) {
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i2c->dev->fifo_data.data = address & 0xFF;
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dataSend--;
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if(addr_10bit) {
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i2c->dev->fifo_data.data = (address >> 8) & 0xFF;
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if(addr_10bit){// address is leftshifted with Read/Write bit set
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i2c->dev->fifo_data.data = (((address >> 8) & 0x6) | 0xF0); // send a9:a8 plus 1111 0xxW mask
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i2c->dev->fifo_data.data = ((address >> 1) & 0xFF); // send a7:a0, remove W bit (7bit address style)
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dataSend -= 2;
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}
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else { // 7bit address
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i2c->dev->fifo_data.data = address & 0xFF;
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dataSend--;
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}
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}
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@ -286,9 +289,12 @@ i2c_err_t i2cRead(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * data
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i2cSetCmd(i2c, cmdIdx++, I2C_CMD_RSTART, 0, false, false, false);
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//CMD WRITE ADDRESS
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i2c->dev->fifo_data.val = address & 0xFF;
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if(addr_10bit) {
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i2c->dev->fifo_data.val = (address >> 8) & 0xFF;
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if (addr_10bit) { // address is left-shifted with Read/Write bit set
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i2c->dev->fifo_data.data = (((address >> 8) & 0x6) | 0xF1); // send a9:a8 plus 1111 0xxR mask
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i2c->dev->fifo_data.data = ((address >> 1) & 0xFF); // send a7:a0, remove R bit (7bit address style)
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}
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else { // 7bit address
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i2c->dev->fifo_data.data = address & 0xFF;
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}
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i2cSetCmd(i2c, cmdIdx++, I2C_CMD_WRITE, addrLen, false, false, true);
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nextCmdCount = cmdIdx;
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