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set crystal load capacitance to 8 pF

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This commit is contained in:
Michael Ossmann
2013-12-12 15:47:00 -07:00
parent dc6ffc51be
commit 6b482b94da
1 changed files with 2 additions and 2 deletions
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4
firmware/common/si5351c.c
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@ -103,11 +103,11 @@ void si5351c_power_down_all_clocks()
/* /*
* Register 183: Crystal Internal Load Capacitance * Register 183: Crystal Internal Load Capacitance
* Reads as 0xE4 on power-up * Reads as 0xE4 on power-up
* Set to 10pF (until I find out what loading the crystal/PCB likes best) * Set to 8pF based on crystal specs and HackRF One testing
*/ */
void si5351c_set_crystal_configuration() void si5351c_set_crystal_configuration()
{ {
uint8_t data[] = { 183, 0xE4 }; uint8_t data[] = { 183, 0x80 };
si5351c_write(data, sizeof(data)); si5351c_write(data, sizeof(data));
} }