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periph/spi: printing and testing SPI clock rates
tests/periph_spi: printing and testing SPI clock rates drivers/periph_spi: change API of spi_acquire (from RIOT-OS#15904) drivers/periph_spi: add the `bus` parameter to spi_get_*() This was necessary for implementations where multiple devices can have different clock sources. This broke the macros SPI_CLK_* that were reverted to an enum. periph/spi: adapted to the new API Arbitrary speed support was added to all implementations where it was missing.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,6 @@ | ||
| /* | ||
| * Copyright (C) 2017 Eistec AB | ||
| * 2021-2023 Hugues Larrive | ||
| * | ||
| * This file is subject to the terms and conditions of the GNU Lesser General | ||
| * Public License v2.1. See the file LICENSE in the top level directory for more | ||
|
|
@@ -14,6 +15,7 @@ | |
| * @name Peripheral MCU configuration for the FRDM-K22F | ||
| * | ||
| * @author Joakim Nohlgård <[email protected]> | ||
| * @author Hugues Larrive <[email protected]> | ||
| */ | ||
|
|
||
| #ifndef PERIPH_CONF_H | ||
|
|
@@ -141,22 +143,54 @@ static const uart_conf_t uart_config[] = { | |
| */ | ||
| static const adc_conf_t adc_config[] = { | ||
| /* dev, pin, channel */ | ||
| [ 0] = { .dev = ADC0, .pin = GPIO_UNDEF , .chan = 0, .avg = ADC_AVG_MAX }, /* ADC0_DP0 */ | ||
| [ 1] = { .dev = ADC0, .pin = GPIO_UNDEF , .chan = 19, .avg = ADC_AVG_MAX }, /* ADC0_DM0 */ | ||
| [ 2] = { .dev = ADC1, .pin = GPIO_UNDEF , .chan = 0, .avg = ADC_AVG_MAX }, /* ADC1_DP0 */ | ||
| [ 3] = { .dev = ADC1, .pin = GPIO_UNDEF , .chan = 19, .avg = ADC_AVG_MAX }, /* ADC1_DM0 */ | ||
| [ 4] = { .dev = ADC0, .pin = GPIO_PIN(PORT_B, 0), .chan = 8, .avg = ADC_AVG_MAX }, /* PTB0 (Arduino A0) */ | ||
| [ 5] = { .dev = ADC0, .pin = GPIO_PIN(PORT_B, 1), .chan = 9, .avg = ADC_AVG_MAX }, /* PTB1 (Arduino A1) */ | ||
| [ 6] = { .dev = ADC0, .pin = GPIO_PIN(PORT_C, 1), .chan = 15, .avg = ADC_AVG_MAX }, /* PTC1 (Arduino A2) */ | ||
| [ 7] = { .dev = ADC0, .pin = GPIO_PIN(PORT_C, 2), .chan = 4, .avg = ADC_AVG_MAX }, /* PTC2 (Arduino A3) */ | ||
| [0] = { /* ADC0_DP0 */ | ||
| .dev = ADC0, .pin = GPIO_UNDEF, | ||
| .chan = 0, .avg = ADC_AVG_MAX | ||
| }, | ||
| [1] = { /* ADC0_DM0 */ | ||
| .dev = ADC0, .pin = GPIO_UNDEF, | ||
| .chan = 19, .avg = ADC_AVG_MAX | ||
| }, | ||
| [2] = { /* ADC1_DP0 */ | ||
| .dev = ADC1, .pin = GPIO_UNDEF, | ||
| .chan = 0, .avg = ADC_AVG_MAX | ||
| }, | ||
| [3] = { /* ADC1_DM0 */ | ||
| .dev = ADC1, .pin = GPIO_UNDEF, | ||
| .chan = 19, .avg = ADC_AVG_MAX | ||
| }, | ||
| [4] = { /* PTB0 (Arduino A0) */ | ||
| .dev = ADC0, .pin = GPIO_PIN(PORT_B, 0), | ||
| .chan = 8, .avg = ADC_AVG_MAX | ||
| }, | ||
| [5] = { /* PTB1 (Arduino A1) */ | ||
| .dev = ADC0, .pin = GPIO_PIN(PORT_B, 1), | ||
| .chan = 9, .avg = ADC_AVG_MAX | ||
| }, | ||
| [6] = { /* PTC1 (Arduino A2) */ | ||
| .dev = ADC0, .pin = GPIO_PIN(PORT_C, 1), | ||
| .chan = 15, .avg = ADC_AVG_MAX | ||
| }, | ||
| [7] = { /* PTC2 (Arduino A3) */ | ||
| .dev = ADC0, .pin = GPIO_PIN(PORT_C, 2), | ||
| .chan = 4, .avg = ADC_AVG_MAX | ||
| }, | ||
| /* internal: temperature sensor */ | ||
| /* The temperature sensor has a very high output impedance, it must not be | ||
| * sampled using hardware averaging, or the sampled values will be garbage */ | ||
| [ 8] = { .dev = ADC0, .pin = GPIO_UNDEF, .chan = 26, .avg = ADC_AVG_NONE }, | ||
| /* The temperature sensor has a very high output impedance, it must | ||
| * not be sampled using hardware averaging, or the sampled values | ||
| * will be garbage */ | ||
| [8] = { | ||
| .dev = ADC0, .pin = GPIO_UNDEF, | ||
| .chan = 26, .avg = ADC_AVG_NONE | ||
| }, | ||
| /* internal: band gap */ | ||
| /* Note: the band gap buffer uses a bit of current and is turned off by default, | ||
| * Set PMC->REGSC |= PMC_REGSC_BGBE_MASK before reading or the input will be floating */ | ||
| [ 9] = { .dev = ADC0, .pin = GPIO_UNDEF, .chan = 27, .avg = ADC_AVG_MAX }, | ||
| /* Note: the band gap buffer uses a bit of current and is turned off | ||
| * by default, set PMC->REGSC |= PMC_REGSC_BGBE_MASK before reading | ||
| * or the input will be floating */ | ||
| [9] = { | ||
| .dev = ADC0, .pin = GPIO_UNDEF, | ||
| .chan = 27, .avg = ADC_AVG_MAX | ||
| }, | ||
| }; | ||
|
|
||
| #define ADC_NUMOF ARRAY_SIZE(adc_config) | ||
|
|
@@ -191,47 +225,8 @@ static const pwm_conf_t pwm_config[] = { | |
|
|
||
| /** | ||
| * @name SPI configuration | ||
| * | ||
| * Clock configuration values based on the configured 48Mhz module clock. | ||
| * | ||
| * Auto-generated by: | ||
| * cpu/kinetis/dist/calc_spi_scalers/calc_spi_scalers.c | ||
| * | ||
| * @{ | ||
| */ | ||
| static const uint32_t spi_clk_config[] = { | ||
| ( | ||
| SPI_CTAR_PBR(0) | SPI_CTAR_BR(8) | /* -> 93750Hz */ | ||
| SPI_CTAR_PCSSCK(0) | SPI_CTAR_CSSCK(8) | | ||
| SPI_CTAR_PASC(0) | SPI_CTAR_ASC(8) | | ||
| SPI_CTAR_PDT(0) | SPI_CTAR_DT(8) | ||
| ), | ||
| ( | ||
| SPI_CTAR_PBR(0) | SPI_CTAR_BR(6) | /* -> 375000Hz */ | ||
| SPI_CTAR_PCSSCK(0) | SPI_CTAR_CSSCK(6) | | ||
| SPI_CTAR_PASC(0) | SPI_CTAR_ASC(6) | | ||
| SPI_CTAR_PDT(0) | SPI_CTAR_DT(6) | ||
| ), | ||
| ( | ||
| SPI_CTAR_PBR(1) | SPI_CTAR_BR(4) | /* -> 1000000Hz */ | ||
| SPI_CTAR_PCSSCK(1) | SPI_CTAR_CSSCK(3) | | ||
| SPI_CTAR_PASC(1) | SPI_CTAR_ASC(3) | | ||
| SPI_CTAR_PDT(1) | SPI_CTAR_DT(3) | ||
| ), | ||
| ( | ||
| SPI_CTAR_PBR(2) | SPI_CTAR_BR(0) | /* -> 4800000Hz */ | ||
| SPI_CTAR_PCSSCK(2) | SPI_CTAR_CSSCK(0) | | ||
| SPI_CTAR_PASC(2) | SPI_CTAR_ASC(0) | | ||
| SPI_CTAR_PDT(2) | SPI_CTAR_DT(0) | ||
| ), | ||
| ( | ||
| SPI_CTAR_PBR(1) | SPI_CTAR_BR(0) | /* -> 8000000Hz */ | ||
| SPI_CTAR_PCSSCK(1) | SPI_CTAR_CSSCK(0) | | ||
| SPI_CTAR_PASC(1) | SPI_CTAR_ASC(0) | | ||
| SPI_CTAR_PDT(1) | SPI_CTAR_DT(0) | ||
| ) | ||
| }; | ||
|
|
||
| * @{ | ||
| */ | ||
| static const spi_conf_t spi_config[] = { | ||
| { | ||
| .dev = SPI0, | ||
|
|
||
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