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Results tagged with spi
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user 204881
SPI is a low-level 3 or 4 wire serial bus interface with clock (SCLK), data in (MISO) and data out (MOSI). The fourth wire is a Slave Select to uniquely select a device on the bus. This signal is usually active-low. Slave Select, Chip Select, CS#, SS# stand for the same function, typically. Be sure to check the datasheet, though. The SPI bus is a *de facto* standard lacking the formal specification.
2
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0
answers
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Errors in SPI communication with SD card due to heat
Given is a PCB with a STM32L432KCU6 and a microSD card connected to it via SPI at 40 MHz in SPI Mode 0. The communication is protected by CRC which is calculated by the microSD card on the fly. …
- 475
30
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1
answer
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MicroSD card performance deteriorates after long-term read-only usage
I'm using a STM32L432 microcontroller to read data from a microSD card via SPI. In my application, I'm playing a sound file with a length of 10 s in loop. …
- 475