Comments (5)
cibomahto
commented on June 25, 2024
A faster clock speed would be great! Most of the designs I've made with the CH554 interface with 3.3V peripherals, so I have to run them at the lower voltage. It makes sense to use 5V for the reasons you mention though.
In this case, we're talking about the default frequency, right? I'm ok with setting that to a higher value, I can make a board specific define for the ones I have.
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nerdralph
commented on June 25, 2024
Yes, I'm just talking about the default. And as I mentioned above, 24Mhz at 3.3V is supported in the range of -20C to 70C.
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cibomahto
commented on June 25, 2024
Thanks!
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nerdralph
commented on June 25, 2024
You were right about 24MHz not working well at 3V3.
DeqingSun/ch55xduino#28
I'd still suggest leaving the default speed at 24MHz, perhaps with a comment in the CDC example to change it to 16MHz when the MCU is powered at 3V3.
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cibomahto
commented on June 25, 2024
Ah, oh well! Sure, a note sounds like a good idea.
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Related Issues (20)
- An arduino wrapper over ch554_sdcc HOT 1
- Win7 needs Zadig driver setup HOT 4
- default CODE_SIZE should be 14kB (0x3800) HOT 2
- make debug.c components optional to save code size HOT 4
- Is it possible to rewrite the description without unnecessary words? HOT 1
- x and x2 should not be volatile HOT 3
- race condition in ring buffer
- bug in UART ISR HOT 1
- blink example doesn't work with P3
- ws2812 example doesn't work with default clock setting HOT 3
- ws2812 example does not compile under Windows MinGW HOT 4
- UsbHostHub_KM example fails to compile HOT 5
- Linux flash tools HOT 7
- example in readme has wrong command HOT 3
- Official English Datasheets! HOT 1
- Chinese characters HOT 4
- ws2812 Makefile correction HOT 1
- Misused `&=` operator in method `ADCInit()` HOT 2
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