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04bf2c4d4a
* build.zig: Trivial rename around UART test * mmio: Add writeRaw() to set a full register * UART: Add TODO for auto baud rate detection * STM32F30x Initial USART1 output/transmit support All code assumes default chip clock configuration. Code assumes STM32F303xB / STM32F3030xC. Code supports only 8 data bits, 1 stop bit. * stm32f3discovery @panic() to UART1 This is done by implementing `debugWrite()` for the board, which only initializes UART1 if that was not yet done, and flushes afterwards to make sure the host receives all. * stm32f303: Support UART1 reader This is done by implementing `rx()` and `canRead()`. * stm32f303 UART1 correctly support 7 and 8 bits This includes correctly masking the parity bit on reads. * stm32f3 UART1 support 0.5/1.5/2 stop bits * stm32f303 UART1 simplify parity code * stm32f303 I2C rough initial code Allows only writing and reading single bytes. * stm32f3 i2c: enable debug 'logging' * Add a few comments * I2C API changes, STM32F303 I2C multi-byte transfers Now using controller/device terminology, instead of master/slave. Now using 'transfer objects' to make STOPs and re-STARTs explicit, and allow using Writer and Reader APIs. Added 'register' abstraction. STM32F303 I2C now supports this new API, and multi-byte transfers. Now waiting for I2C_ISR.BUSY == 0, after setting I2C_CR2.STOP == 1. Without this, the sequence write-stop-write caused an additional STOP to be sent immediately the START and address of the second write. * Make work with regz-generated registers.zig change * Updated to match regz-generated update * After #23 repair Reset on stm32, lpc1768 * Clean-up I2C `readRegisters()`. * Refactor to separate read/write states * On STM32F303, make second read call fail Also doc comments to clarify the new API. * STM32 I2C: Properly support multiple write calls * I2C STM32: Fix release mode compile error ...on top of an earlier commit on this branch. * I2C Add 'write register' shorthand functions |
3 years ago | |
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| .github/workflows | 3 years ago | |
| src | 3 years ago | |
| tests | 3 years ago | |
| .gitattributes | 3 years ago | |
| .gitignore | 3 years ago | |
| README.md | 3 years ago | |
| build.zig | 3 years ago | |
| thoughts.md | 3 years ago | |