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zhaocz · 2023-12-12

I have integrated the ST25R3911B into a Linux development board, using spi+gpio for communication.I currently have GPIO configured for edge-triggering (both), and I am polling for card readings at a frequency of 300ms.However, I've noticed that the G...

zhaocz · 2023-11-21

I have integrated the ST25R3911B into an ARM64 Linux development board, using rfal_v1.3 for communication via SPI.I am able to poll and read cards successfully, but I've observed higher CPU usage.Upon inspecting the perf.svg, it appears that the st25...

zhaocz · 2023-12-05

Hi The result of "Check IRQ Handling" is "ERR_TIMEOUT", what is the possible reason?I modified gpio_init(), is it related to this? How can i dig deeper? stError gpio_init(void) { int fd_exportGPIO = 0; int fd_dirGPIO = 0; int fd_edgeGPIO = 0; int...

zhaocz · 2023-12-04

ok , thank you

zhaocz · 2023-12-04

HiI have traced that rfalISO14443ATransceiveShortFrame() consistently returns RFAL_ERR_IO.

zhaocz · 2023-12-04

zhaocz · 2023-12-04

HiI understand. I have a new issue now.I modified the gpio_init （gpio7>gpio34） based on stsw-st25r009, and turned off the wake-up mode.However, I am unable to detect the card (nfca). In the demoCycle() function, the state remains DEMO_ST_DISCOVERY, b...

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ST25R3911 high cpu use

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