Get Read Buffer Byte Count: Command 223 by Pololu
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$90.00
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Sold and shipped by netztaucher.com
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Product details
| Management number | 210875080 | Release Date | 2026/04/04 | List Price | $36.00 | Model Number | 210875080 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
This command populates the mega168's SPDR (SPI data register) with the count of bytes in the UART read buffer. After loading, sending a second byte (like the NULL command or random data) over SPI transfers the value to the mega644's SPDR. It's advised to wait 3 us after sending the command byte before transmitting the second byte, ensuring the mega168 has time to load the SPDR. If the buffer is full, this call returns 32; if it's empty, it returns 0.
- Action: This command populates the mega168's SPDR with the UART read buffer's occupied byte count
- Data Sent: None
- Command Byte: 223
| Brand Name | Pololu |
|---|---|
| Manufacturer | Pololu |
| Operation Mode | Automatic |
| Age Range Description | Adult |
| Educational Objective | Learn and use UART commands in programming |
| Manufacturer Part Number | 3.c.05.-command-223:-get-numb-f535d5c03f |
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