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TLF35584 on TC366TH v1.0 eval board can successfully enter normal mode. However when I try to switch to STANDBY mode or SLEEP mode it doesn't enter these modes. When I try to switch from normal mode to standby it enters to INIT state. Similarly, when I try to switch from normal to sleep it enters to WAKE state. I checked and confirmed that ENA , WAK and SPI commands. Also, I tried to switch from WAKE state to Standby state but it switched itself to INIT mode. I also can switch from INIT to Normal mode again. There is only two conditions that make impossible to switch to standby or sleep mode which is this condition: "MCU current from QUC did not fall below configured threshold" and "MCU current from QUC did not fall below threshold if configured".
How can I configure MCU current from QUC threshold? or is this the only problem for switching between modes?
I need help. Look to state diagram in datasheet.
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Hi Izzet,
Have you checked below conditions?
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I checked ENA and WAK pins and they are in correct state. But how can I configure the current monitor settings? How can I activate it and modify its default settings?
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First you make sure the MCU is low power mode, and then you can try to configure above to check.
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I configured those registers and confirmed that they are set. But how to make sure MCU is on low power mode? how to set it?
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Hi izzet,
Please refer to below applicaiton note.
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tc366th seems to draw 110mA in normal mode is it normal? TLF only enters init or wake modes due to current threshold problems in my opinion cuz ENA and WAK are always zero I confirmed by reading wake up status registers as well. AND, Even though I configured DEVCFG0 and DEVCFG2 registers at their maximum levels (100mA threshold and 1.6ms transition delay) still I cant switch. And I dont have access to documents you shared above, I emailed support and waiting for reply.
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Please download above document and refer to below code also: