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| author | Nick Brassel <nick@tzarc.org> | 2020-03-12 12:59:55 +1100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-03-12 12:59:55 +1100 |
| commit | f2f2afe13ba3ae1da8a546ad85eb9e69ddc70a8a (patch) | |
| tree | 6c5b20825aa0c28be64eebce4c4a69ca638cd774 /docs/eeprom_driver.md | |
| parent | 3a3ea03b6ef51698de39e545e9ca1d8e1d093e31 (diff) | |
| download | qmk_firmware-f2f2afe13ba3ae1da8a546ad85eb9e69ddc70a8a.tar.gz qmk_firmware-f2f2afe13ba3ae1da8a546ad85eb9e69ddc70a8a.zip | |
Add support for STM32L0/L1 onboard EEPROM. (#8002)
* Add support for STM32L0/L1 onboard EEPROM.
* Update docs/eeprom_driver.md
Co-Authored-By: Joel Challis <git@zvecr.com>
Co-authored-by: Joel Challis <git@zvecr.com>
Diffstat (limited to 'docs/eeprom_driver.md')
| -rw-r--r-- | docs/eeprom_driver.md | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/docs/eeprom_driver.md b/docs/eeprom_driver.md index dd12d8ec7..5a91a7c2d 100644 --- a/docs/eeprom_driver.md +++ b/docs/eeprom_driver.md | |||
| @@ -2,14 +2,16 @@ | |||
| 2 | 2 | ||
| 3 | The EEPROM driver can be swapped out depending on the needs of the keyboard, or whether extra hardware is present. | 3 | The EEPROM driver can be swapped out depending on the needs of the keyboard, or whether extra hardware is present. |
| 4 | 4 | ||
| 5 | Driver | Description | 5 | Driver | Description |
| 6 | --------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | 6 | -----------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 7 | `EEPROM_DRIVER = vendor` | Uses the on-chip driver provided by the chip manufacturer. For AVR, this is provided by avr-libc. This is supported on ARM for a subset of chips -- STM32F3xx, STM32F1xx, and STM32F072xB will be emulated by writing to flash. Other chips will generally act as "transient" below. | 7 | `EEPROM_DRIVER = vendor` (default) | Uses the on-chip driver provided by the chip manufacturer. For AVR, this is provided by avr-libc. This is supported on ARM for a subset of chips -- STM32F3xx, STM32F1xx, and STM32F072xB will be emulated by writing to flash. STM32L0xx and STM32L1xx will use the onboard dedicated true EEPROM. Other chips will generally act as "transient" below. |
| 8 | `EEPROM_DRIVER = i2c` | Supports writing to I2C-based 24xx EEPROM chips. See the driver section below. | 8 | `EEPROM_DRIVER = i2c` | Supports writing to I2C-based 24xx EEPROM chips. See the driver section below. |
| 9 | `EEPROM_DRIVER = transient` | Fake EEPROM driver -- supports reading/writing to RAM, and will be discarded when power is lost. | 9 | `EEPROM_DRIVER = transient` | Fake EEPROM driver -- supports reading/writing to RAM, and will be discarded when power is lost. |
| 10 | 10 | ||
| 11 | ## Vendor Driver Configuration | 11 | ## Vendor Driver Configuration |
| 12 | 12 | ||
| 13 | !> Resetting EEPROM using an STM32L0/L1 device takes up to 1 second for every 1kB of internal EEPROM used. | ||
| 14 | |||
| 13 | No configurable options are available. | 15 | No configurable options are available. |
| 14 | 16 | ||
| 15 | ## I2C Driver Configuration | 17 | ## I2C Driver Configuration |