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sinara-hw / Stabilizer

2-channel microcontroller servo with EEM and Ethernet based on STM32 CPU
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v1.3.2 DAC8831IBD noise #119

Open MorganTL opened 1 month ago

MorganTL commented 1 month ago

The DAC output is very noisy on both channel when using DAC8831IBD. The issue is fixed after replacing the DAC8831IBD with AD5542ABCPZ-REEL7

Test setup

Result With DAC8831IBD

noisy

Result after replacing DAC8831IBD with AD5542ABCPZ-REEL7

clean

Related issue

107

gkasprow commented 1 month ago

DAC8831IBD was used due to component shortages

gkasprow commented 1 month ago

Noise may be caused also by SPI timing issues

sbourdeauducq commented 1 month ago

DAC8831IBD was used due to component shortages

@gkasprow Do you remember if it was tested and how?

gkasprow commented 1 month ago

it passes our automated test. But the test is not very detailed and checks mainly assembly