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Add HT32 support to core #14388

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merged 6 commits into from
Oct 18, 2021
Merged

Add HT32 support to core #14388

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447cf5a
tmk_core: temporary fix to allow HT32 based keyboards to work without…
bwisn Aug 29, 2021
13447af
HT32: add spi support
tech2077 Aug 24, 2020
977877d
HT32: fix formatting
bwisn Sep 11, 2021
9d103ca
HT32: Apply suggestions from fauxpark's code review
bwisn Sep 12, 2021
37b6928
HT32: update spi driver
bwisn Sep 15, 2021
5c8edd5
ht32: apply code review suggestions, remove old workaround
bwisn Sep 16, 2021
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25 changes: 25 additions & 0 deletions platforms/chibios/drivers/spi_master.c
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Original file line number Diff line number Diff line change
Expand Up @@ -110,6 +110,31 @@ bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor) {
spiConfig.tar0 |= SPIx_CTARn_BR(8);
break;
}

#elif defined(HT32)
spiConfig.cr0 = SPI_CR0_SELOEN;
spiConfig.cr1 = SPI_CR1_MODE | 8; // 8 bits and in master mode

if (lsbFirst) {
spiConfig.cr1 |= SPI_CR1_FIRSTBIT;
}

switch (mode) {
case 0:
spiConfig.cr1 |= SPI_CR1_FORMAT_MODE0;
break;
case 1:
spiConfig.cr1 |= SPI_CR1_FORMAT_MODE1;
break;
case 2:
spiConfig.cr1 |= SPI_CR1_FORMAT_MODE2;
break;
case 3:
spiConfig.cr1 |= SPI_CR1_FORMAT_MODE3;
break;
}

spiConfig.cpr = (roundedDivisor - 1) >> 1;
#else
spiConfig.cr1 = 0;

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10 changes: 9 additions & 1 deletion tmk_core/common/chibios/chibios_config.h
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Original file line number Diff line number Diff line change
Expand Up @@ -46,4 +46,12 @@
# define USE_I2CV1_CONTRIB // for some reason a bunch of ChibiOS-Contrib boards only have clock_speed
# define USE_GPIOV1
# endif
#endif
#endif

#if defined(HT32)
# define CPU_CLOCK HT32_CK_SYS_FREQUENCY
# define PAL_MODE_ALTERNATE PAL_HT32_MODE_AF
# define PAL_OUTPUT_TYPE_OPENDRAIN (PAL_HT32_MODE_OD | PAL_HT32_MODE_DIR)
# define PAL_OUTPUT_TYPE_PUSHPULL PAL_HT32_MODE_DIR
# define PAL_OUTPUT_SPEED_HIGHEST 0
#endif