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Altera_Forum's avatar
Altera_Forum
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10 years ago

Problem: DE1-SoC Audio Codec

Hello everyone. I'll start by saying that my english sure it's not the best, i apologise for that; but i'll try anyway to be as clear as possibile. I'm trying to realise a project on my DE1-SoC...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Hello, I was curious if you were ever able to to switch the I2C multiplexer.

I am currently trying using the following commands.

# define HPS_I2C_CONTROL ( 0x00080000 )

alt_setbits_word( ( virtual_base + ( ( uint32_t )( ALT_GPIO1_SWPORTA_DDR_ADDR ) & ( uint32_t )( HW_REGS_MASK ) ) ), HPS_I2C_CONTROL ); //output

alt_clrbits_word( ( virtual_base + ( ( uint32_t )( ALT_GPIO1_SWPORTA_DR_ADDR ) & ( uint32_t )( HW_REGS_MASK ) ) ), HPS_I2C_CONTROL );

Yet the LED I have assigned to HPS_I2C_CONTROL indicates it is still active.