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athens: support ID reading & dot clock disabling.

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This commit is contained in:
Maxim Poliakovski 2022-08-11 01:43:08 +02:00
parent 56db0426a4
commit b67644ba35
1 changed files with 7 additions and 2 deletions
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9
devices/common/i2c/athens.cpp
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@ -85,8 +85,8 @@ bool AthensClocks::send_byte(uint8_t data)
bool AthensClocks::receive_byte(uint8_t* p_data)
{
LOG_F(INFO, "Athens: receive_byte called");
return false; // return NACK for now
*p_data = 0x41; // return my ID (value has been guessed)
return true;
}
int AthensClocks::get_sys_freq()
@ -101,6 +101,11 @@ int AthensClocks::get_dot_freq()
22, 27, 28, 31, 35, 37, 38, 42, 49, 55, 56, 78, 125
};
if (this->regs[AthensRegs::P2_MUX2] & 0xC0) {
LOG_F(INFO, "Athens: dot clock disabled");
return 0;
}
float out_freq = 0.0f;
int d2 = this->regs[AthensRegs::D2];