kopia lustrzana https://github.com/peterhinch/micropython_eeprom
Add FRAM. Various minor changes.
rodzic
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README.md
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README.md
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@ -46,14 +46,14 @@ Supported devices. Microchip manufacture each chip in different variants with
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letters denoted by "xx" below. The variants cover parameters such as minimum
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letters denoted by "xx" below. The variants cover parameters such as minimum
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Vcc value and do not affect the API.
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Vcc value and do not affect the API.
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In the table below the Interface column includes page size in bytes.
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In the table below the Interface column includes page size in bytes.
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| Manufacurer | Part | Interface | Bytes | Technology | Docs |
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| Manufacurer | Part | Interface | Bytes | Technology | Docs |
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|:-----------:|:--------:|:---------:|:------:|:----------:|:------:|
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|:-----------:|:--------:|:---------:|:------:|:----------:|:-------------------------:|
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| Microchip | 25xx1024 | SPI 256 | 128KiB | EEPROM | [SPI.md](./spi/SPI.md) |
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| Microchip | 25xx1024 | SPI 256 | 128KiB | EEPROM | [SPI.md](./spi/SPI.md) |
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| Microchip | 24xx512 | I2C 128 | 64KiB | EEPROM | [I2C.md](./i2c/I2C.md) |
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| Microchip | 24xx512 | I2C 128 | 64KiB | EEPROM | [I2C.md](./i2c/I2C.md) |
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| Microchip | 24xx256 | I2C 128 | 32KiB | EEPROM | [I2C.md](./i2c/I2C.md) |
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| Microchip | 24xx256 | I2C 128 | 32KiB | EEPROM | [I2C.md](./i2c/I2C.md) |
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| Microchip | 24xx128 | I2C 128 | 16KiB | EEPROM | [I2C.md](./i2c/I2C.md) |
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| Microchip | 24xx128 | I2C 128 | 16KiB | EEPROM | [I2C.md](./i2c/I2C.md) |
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| Microchip | 24xx64 | I2C 128 | 8KiB | EEPROM | [I2C.md](./i2c/I2C.md) |
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| Microchip | 24xx64 | I2C 128 | 8KiB | EEPROM | [I2C.md](./i2c/I2C.md) |
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| Adafruit | 1895 | I2C n/a | 32KiB | FRAM | [FRAM.md](./fram/FRAM.md) |
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| Adafruit | 1895 | I2C n/a | 32KiB | FRAM | [FRAM.md](./fram/FRAM.md) |
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## 1.4 Performance
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## 1.4 Performance
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@ -25,12 +25,12 @@ as below. Pin numbers assume a PDIP package (8 pin plastic dual-in-line).
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|:-------:|:---:|:------:|
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|:-------:|:---:|:------:|
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| 1 CS | Y5 | SS/ |
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| 1 CS | Y5 | SS/ |
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| 2 SO | Y7 | MISO |
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| 2 SO | Y7 | MISO |
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| 3 WP/ | 3V3 | |
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| 3 WP/ | 3V3 | 3V3 |
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| 4 Vss | Gnd | |
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| 4 Vss | Gnd | Gnd |
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| 5 SI | Y8 | MOSI |
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| 5 SI | Y8 | MOSI |
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| 6 SCK | Y6 | SCK |
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| 6 SCK | Y6 | SCK |
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| 7 HOLD/ | 3V3 | |
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| 7 HOLD/ | 3V3 | 3V3 |
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| 8 Vcc | 3V3 | |
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| 8 Vcc | 3V3 | 3V3 |
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For multiple chips a separate CS pin must be assigned to each chip: each one
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For multiple chips a separate CS pin must be assigned to each chip: each one
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must be wired to a single chip's CS line. Multiple chips should have 3V3, Gnd,
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must be wired to a single chip's CS line. Multiple chips should have 3V3, Gnd,
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