Merge pull request #1223 from dhalbert/spi-baudrate
nrf: remove error check for SPI baudrate too high; round to nearest baudrate
This commit is contained in:
Scott Shawcroft
GitHub
commit
86ae707b08
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@ -8,7 +8,7 @@ msgid ""
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msgstr ""
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"Project-Id-Version: PACKAGE VERSION\n"
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||||
"Report-Msgid-Bugs-To: \n"
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||||
"POT-Creation-Date: 2018-09-21 12:23-0400\n"
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||||
"POT-Creation-Date: 2018-10-01 18:52-0400\n"
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||||
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
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||||
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
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||||
"Language-Team: LANGUAGE <LL@li.org>\n"
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@ -361,7 +361,7 @@ msgstr ""
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#: ports/atmel-samd/common-hal/busio/SPI.c:132
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#: ports/atmel-samd/common-hal/busio/UART.c:119
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#: ports/atmel-samd/common-hal/i2cslave/I2CSlave.c:45
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#: ports/nrf/common-hal/busio/I2C.c:77
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#: ports/nrf/common-hal/busio/I2C.c:81
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msgid "Invalid pins"
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msgstr ""
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@ -690,18 +690,14 @@ msgstr ""
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msgid "AnalogOut functionality not supported"
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msgstr ""
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#: ports/nrf/common-hal/busio/I2C.c:91
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#: ports/nrf/common-hal/busio/I2C.c:95
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msgid "All I2C peripherals are in use"
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msgstr ""
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#: ports/nrf/common-hal/busio/SPI.c:109
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#: ports/nrf/common-hal/busio/SPI.c:115
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msgid "All SPI peripherals are in use"
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msgstr ""
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#: ports/nrf/common-hal/busio/SPI.c:170
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msgid "Baud rate too high for this SPI peripheral"
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msgstr ""
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#: ports/nrf/common-hal/busio/UART.c:43 ports/nrf/common-hal/busio/UART.c:47
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#: ports/nrf/common-hal/busio/UART.c:51 ports/nrf/common-hal/busio/UART.c:60
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#: ports/nrf/common-hal/busio/UART.c:66 ports/nrf/common-hal/busio/UART.c:71
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@ -1990,19 +1986,19 @@ msgstr ""
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msgid "Buffer must be at least length 1"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:168
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#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:175
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msgid "Invalid polarity"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:172
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#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:179
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msgid "Invalid phase"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:176
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#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:183
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msgid "Invalid number of bits"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:341
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#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:348
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msgid "buffer slices must be of equal length"
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msgstr ""
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@ -7,7 +7,7 @@ msgid ""
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msgstr ""
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"Project-Id-Version: \n"
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||||
"Report-Msgid-Bugs-To: \n"
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||||
"POT-Creation-Date: 2018-09-21 12:23-0400\n"
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||||
"POT-Creation-Date: 2018-10-01 18:44-0400\n"
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"PO-Revision-Date: 2018-07-27 11:55-0700\n"
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"Last-Translator: Sebastian Plamauer\n"
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"Language-Team: \n"
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@ -370,7 +370,7 @@ msgstr "Nicht genug Pins vorhanden"
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#: ports/atmel-samd/common-hal/busio/SPI.c:132
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#: ports/atmel-samd/common-hal/busio/UART.c:119
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#: ports/atmel-samd/common-hal/i2cslave/I2CSlave.c:45
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#: ports/nrf/common-hal/busio/I2C.c:77
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#: ports/nrf/common-hal/busio/I2C.c:81
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msgid "Invalid pins"
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msgstr "Ungültige Pins"
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@ -699,20 +699,16 @@ msgstr ""
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msgid "AnalogOut functionality not supported"
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msgstr ""
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#: ports/nrf/common-hal/busio/I2C.c:91
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#: ports/nrf/common-hal/busio/I2C.c:95
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#, fuzzy
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msgid "All I2C peripherals are in use"
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msgstr "Alle timer werden benutzt"
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#: ports/nrf/common-hal/busio/SPI.c:109
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#: ports/nrf/common-hal/busio/SPI.c:115
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#, fuzzy
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msgid "All SPI peripherals are in use"
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msgstr "Alle timer werden benutzt"
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#: ports/nrf/common-hal/busio/SPI.c:170
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msgid "Baud rate too high for this SPI peripheral"
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msgstr ""
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#: ports/nrf/common-hal/busio/UART.c:43 ports/nrf/common-hal/busio/UART.c:47
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#: ports/nrf/common-hal/busio/UART.c:51 ports/nrf/common-hal/busio/UART.c:60
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#: ports/nrf/common-hal/busio/UART.c:66 ports/nrf/common-hal/busio/UART.c:71
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@ -2001,19 +1997,19 @@ msgstr ""
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msgid "Buffer must be at least length 1"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:168
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#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:175
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msgid "Invalid polarity"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:172
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#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:179
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msgid "Invalid phase"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:176
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#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:183
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msgid "Invalid number of bits"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:341
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#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:348
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msgid "buffer slices must be of equal length"
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msgstr ""
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@ -7,7 +7,7 @@ msgid ""
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msgstr ""
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"Project-Id-Version: \n"
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"Report-Msgid-Bugs-To: \n"
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"POT-Creation-Date: 2018-09-21 12:23-0400\n"
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"POT-Creation-Date: 2018-10-01 18:44-0400\n"
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"PO-Revision-Date: 2018-07-27 11:55-0700\n"
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"Last-Translator: \n"
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"Language-Team: \n"
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@ -361,7 +361,7 @@ msgstr ""
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#: ports/atmel-samd/common-hal/busio/SPI.c:132
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#: ports/atmel-samd/common-hal/busio/UART.c:119
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#: ports/atmel-samd/common-hal/i2cslave/I2CSlave.c:45
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#: ports/nrf/common-hal/busio/I2C.c:77
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#: ports/nrf/common-hal/busio/I2C.c:81
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msgid "Invalid pins"
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msgstr ""
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||||
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@ -690,18 +690,14 @@ msgstr ""
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msgid "AnalogOut functionality not supported"
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msgstr ""
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#: ports/nrf/common-hal/busio/I2C.c:91
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#: ports/nrf/common-hal/busio/I2C.c:95
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msgid "All I2C peripherals are in use"
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msgstr ""
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#: ports/nrf/common-hal/busio/SPI.c:109
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#: ports/nrf/common-hal/busio/SPI.c:115
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msgid "All SPI peripherals are in use"
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msgstr ""
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#: ports/nrf/common-hal/busio/SPI.c:170
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msgid "Baud rate too high for this SPI peripheral"
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msgstr ""
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#: ports/nrf/common-hal/busio/UART.c:43 ports/nrf/common-hal/busio/UART.c:47
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#: ports/nrf/common-hal/busio/UART.c:51 ports/nrf/common-hal/busio/UART.c:60
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#: ports/nrf/common-hal/busio/UART.c:66 ports/nrf/common-hal/busio/UART.c:71
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@ -1990,19 +1986,19 @@ msgstr ""
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msgid "Buffer must be at least length 1"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:168
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#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:175
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msgid "Invalid polarity"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:172
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#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:179
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msgid "Invalid phase"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:176
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#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:183
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msgid "Invalid number of bits"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:341
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#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:348
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msgid "buffer slices must be of equal length"
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msgstr ""
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23
locale/es.po
23
locale/es.po
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@ -7,7 +7,7 @@ msgid ""
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msgstr ""
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"Project-Id-Version: \n"
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"Report-Msgid-Bugs-To: \n"
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"POT-Creation-Date: 2018-09-21 12:23-0400\n"
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"POT-Creation-Date: 2018-10-01 18:44-0400\n"
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"PO-Revision-Date: 2018-08-24 22:56-0500\n"
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"Last-Translator: \n"
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"Language-Team: \n"
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@ -376,7 +376,7 @@ msgstr "No hay suficientes pines disponibles"
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#: ports/atmel-samd/common-hal/busio/SPI.c:132
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#: ports/atmel-samd/common-hal/busio/UART.c:119
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#: ports/atmel-samd/common-hal/i2cslave/I2CSlave.c:45
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#: ports/nrf/common-hal/busio/I2C.c:77
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#: ports/nrf/common-hal/busio/I2C.c:81
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msgid "Invalid pins"
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msgstr "pines inválidos"
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@ -620,7 +620,8 @@ msgstr "len debe de ser múltiple de 4"
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#: ports/esp8266/modesp.c:274
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#, c-format
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msgid "memory allocation failed, allocating %u bytes for native code"
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msgstr "la asignación de memoria ha fallado, asignando %u bytes para código nativo"
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msgstr ""
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"la asignación de memoria ha fallado, asignando %u bytes para código nativo"
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#: ports/esp8266/modesp.c:317
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msgid "flash location must be below 1MByte"
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@ -706,18 +707,14 @@ msgstr "parámetro config desconocido"
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msgid "AnalogOut functionality not supported"
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msgstr ""
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#: ports/nrf/common-hal/busio/I2C.c:91
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#: ports/nrf/common-hal/busio/I2C.c:95
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msgid "All I2C peripherals are in use"
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msgstr "Todos los timers están siendo utilizados"
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#: ports/nrf/common-hal/busio/SPI.c:109
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#: ports/nrf/common-hal/busio/SPI.c:115
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msgid "All SPI peripherals are in use"
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msgstr "Todos los timers están siendo utilizados"
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#: ports/nrf/common-hal/busio/SPI.c:170
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msgid "Baud rate too high for this SPI peripheral"
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msgstr ""
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#: ports/nrf/common-hal/busio/UART.c:43 ports/nrf/common-hal/busio/UART.c:47
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#: ports/nrf/common-hal/busio/UART.c:51 ports/nrf/common-hal/busio/UART.c:60
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#: ports/nrf/common-hal/busio/UART.c:66 ports/nrf/common-hal/busio/UART.c:71
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@ -2033,19 +2030,19 @@ msgstr ""
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msgid "Buffer must be at least length 1"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:168
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#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:175
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msgid "Invalid polarity"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:172
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#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:179
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msgid "Invalid phase"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:176
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#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:183
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msgid "Invalid number of bits"
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msgstr ""
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#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:341
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#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:348
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msgid "buffer slices must be of equal length"
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msgstr ""
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@ -7,7 +7,7 @@ msgid ""
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msgstr ""
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"Project-Id-Version: \n"
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"Report-Msgid-Bugs-To: \n"
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"POT-Creation-Date: 2018-09-21 12:23-0400\n"
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"POT-Creation-Date: 2018-10-01 18:44-0400\n"
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"PO-Revision-Date: 2018-08-30 23:04-0700\n"
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"Last-Translator: Timothy <me@timothygarcia.ca>\n"
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"Language-Team: fil\n"
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@ -373,7 +373,7 @@ msgstr "Hindi sapat ang magagamit na pins"
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#: ports/atmel-samd/common-hal/busio/SPI.c:132
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#: ports/atmel-samd/common-hal/busio/UART.c:119
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#: ports/atmel-samd/common-hal/i2cslave/I2CSlave.c:45
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#: ports/nrf/common-hal/busio/I2C.c:77
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#: ports/nrf/common-hal/busio/I2C.c:81
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msgid "Invalid pins"
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msgstr "Mali ang pins"
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@ -705,20 +705,16 @@ msgstr "hindi alam na config param"
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msgid "AnalogOut functionality not supported"
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msgstr "Hindi supportado ang AnalogOut"
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#: ports/nrf/common-hal/busio/I2C.c:91
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#: ports/nrf/common-hal/busio/I2C.c:95
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#, fuzzy
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msgid "All I2C peripherals are in use"
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msgstr "Lahat ng timer ginagamit"
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#: ports/nrf/common-hal/busio/SPI.c:109
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#: ports/nrf/common-hal/busio/SPI.c:115
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#, fuzzy
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msgid "All SPI peripherals are in use"
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msgstr "Lahat ng timer ginagamit"
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#: ports/nrf/common-hal/busio/SPI.c:170
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msgid "Baud rate too high for this SPI peripheral"
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msgstr ""
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#: ports/nrf/common-hal/busio/UART.c:43 ports/nrf/common-hal/busio/UART.c:47
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#: ports/nrf/common-hal/busio/UART.c:51 ports/nrf/common-hal/busio/UART.c:60
|
||||
#: ports/nrf/common-hal/busio/UART.c:66 ports/nrf/common-hal/busio/UART.c:71
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@ -2030,19 +2026,19 @@ msgstr "Function nangangailangan ng lock"
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msgid "Buffer must be at least length 1"
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msgstr "Buffer dapat ay hindi baba sa 1 na haba"
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#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:168
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||||
#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:175
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msgid "Invalid polarity"
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||||
msgstr "Mali ang polarity"
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||||
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||||
#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:172
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||||
#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:179
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msgid "Invalid phase"
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||||
msgstr "Mali ang phase"
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||||
#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:176
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||||
#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:183
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msgid "Invalid number of bits"
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||||
msgstr "Mali ang bilang ng bits"
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||||
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||||
#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:341
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#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:348
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msgid "buffer slices must be of equal length"
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||||
msgstr "aarehas na haba dapat ang buffer slices"
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||||
|
||||
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20
locale/fr.po
20
locale/fr.po
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@ -7,7 +7,7 @@ msgid ""
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|||
msgstr ""
|
||||
"Project-Id-Version: 0.1\n"
|
||||
"Report-Msgid-Bugs-To: \n"
|
||||
"POT-Creation-Date: 2018-09-21 12:23-0400\n"
|
||||
"POT-Creation-Date: 2018-10-01 18:52-0400\n"
|
||||
"PO-Revision-Date: 2018-08-14 11:01+0200\n"
|
||||
"Last-Translator: Pierrick Couturier <arofarn@arofarn.info>\n"
|
||||
"Language-Team: fr\n"
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||||
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@ -368,7 +368,7 @@ msgstr "Pas assez de broches disponibles"
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|||
#: ports/atmel-samd/common-hal/busio/SPI.c:132
|
||||
#: ports/atmel-samd/common-hal/busio/UART.c:119
|
||||
#: ports/atmel-samd/common-hal/i2cslave/I2CSlave.c:45
|
||||
#: ports/nrf/common-hal/busio/I2C.c:77
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||||
#: ports/nrf/common-hal/busio/I2C.c:81
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||||
msgid "Invalid pins"
|
||||
msgstr "Broche invalide"
|
||||
|
||||
|
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@ -701,20 +701,16 @@ msgstr "paramètre de config. inconnu"
|
|||
msgid "AnalogOut functionality not supported"
|
||||
msgstr "AnalogOut non supporté"
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||||
|
||||
#: ports/nrf/common-hal/busio/I2C.c:91
|
||||
#: ports/nrf/common-hal/busio/I2C.c:95
|
||||
#, fuzzy
|
||||
msgid "All I2C peripherals are in use"
|
||||
msgstr "Tous les timers sont utilisés"
|
||||
|
||||
#: ports/nrf/common-hal/busio/SPI.c:109
|
||||
#: ports/nrf/common-hal/busio/SPI.c:115
|
||||
#, fuzzy
|
||||
msgid "All SPI peripherals are in use"
|
||||
msgstr "Tous les timers sont utilisés"
|
||||
|
||||
#: ports/nrf/common-hal/busio/SPI.c:170
|
||||
msgid "Baud rate too high for this SPI peripheral"
|
||||
msgstr ""
|
||||
|
||||
#: ports/nrf/common-hal/busio/UART.c:43 ports/nrf/common-hal/busio/UART.c:47
|
||||
#: ports/nrf/common-hal/busio/UART.c:51 ports/nrf/common-hal/busio/UART.c:60
|
||||
#: ports/nrf/common-hal/busio/UART.c:66 ports/nrf/common-hal/busio/UART.c:71
|
||||
|
|
@ -2021,19 +2017,19 @@ msgstr "La fonction nécessite un verrou"
|
|||
msgid "Buffer must be at least length 1"
|
||||
msgstr "Le tampon doit être de longueur au moins 1"
|
||||
|
||||
#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:168
|
||||
#: shared-bindings/bitbangio/SPI.c:151 shared-bindings/busio/SPI.c:175
|
||||
msgid "Invalid polarity"
|
||||
msgstr "Polarité invalide"
|
||||
|
||||
#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:172
|
||||
#: shared-bindings/bitbangio/SPI.c:155 shared-bindings/busio/SPI.c:179
|
||||
msgid "Invalid phase"
|
||||
msgstr "Phase invalide"
|
||||
|
||||
#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:176
|
||||
#: shared-bindings/bitbangio/SPI.c:159 shared-bindings/busio/SPI.c:183
|
||||
msgid "Invalid number of bits"
|
||||
msgstr "Nombre de bits invalide"
|
||||
|
||||
#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:341
|
||||
#: shared-bindings/bitbangio/SPI.c:284 shared-bindings/busio/SPI.c:348
|
||||
msgid "buffer slices must be of equal length"
|
||||
msgstr "les slices de tampon doivent être de longueurs égales"
|
||||
|
||||
|
|
|
|||
|
|
@ -65,40 +65,40 @@ void spi_reset(void) {
|
|||
}
|
||||
}
|
||||
|
||||
// Convert frequency to clock-speed-dependent value
|
||||
// Convert frequency to clock-speed-dependent value. Choose the next lower baudrate if in between
|
||||
// available baudrates.
|
||||
static nrf_spim_frequency_t baudrate_to_spim_frequency(const uint32_t baudrate) {
|
||||
if (baudrate <= 125000) {
|
||||
return NRF_SPIM_FREQ_125K;
|
||||
}
|
||||
if (baudrate <= 250000) {
|
||||
return NRF_SPIM_FREQ_250K;
|
||||
}
|
||||
if (baudrate <= 500000) {
|
||||
return NRF_SPIM_FREQ_500K;
|
||||
}
|
||||
if (baudrate <= 1000000) {
|
||||
return NRF_SPIM_FREQ_1M;
|
||||
}
|
||||
if (baudrate <= 2000000) {
|
||||
return NRF_SPIM_FREQ_2M;
|
||||
}
|
||||
if (baudrate <= 4000000) {
|
||||
return NRF_SPIM_FREQ_4M;
|
||||
}
|
||||
if (baudrate <= 8000000) {
|
||||
return NRF_SPIM_FREQ_8M;
|
||||
}
|
||||
#ifdef SPIM_FREQUENCY_FREQUENCY_M16
|
||||
if (baudrate <= 16000000) {
|
||||
return NRF_SPIM_FREQ_16M;
|
||||
}
|
||||
#endif
|
||||
|
||||
static const struct {
|
||||
const uint32_t boundary;
|
||||
nrf_spim_frequency_t spim_frequency;
|
||||
} baudrate_map[] = {
|
||||
#ifdef SPIM_FREQUENCY_FREQUENCY_M32
|
||||
return NRF_SPIM_FREQ_32M;
|
||||
#else
|
||||
return NRF_SPIM_FREQ_8M;
|
||||
{ 32000000, NRF_SPIM_FREQ_32M },
|
||||
#endif
|
||||
#ifdef SPIM_FREQUENCY_FREQUENCY_M16
|
||||
{ 16000000, NRF_SPIM_FREQ_16M },
|
||||
#endif
|
||||
{ 8000000, NRF_SPIM_FREQ_8M },
|
||||
{ 4000000, NRF_SPIM_FREQ_4M },
|
||||
{ 2000000, NRF_SPIM_FREQ_2M },
|
||||
{ 1000000, NRF_SPIM_FREQ_1M },
|
||||
{ 500000, NRF_SPIM_FREQ_500K },
|
||||
{ 250000, NRF_SPIM_FREQ_250K },
|
||||
{ 0, NRF_SPIM_FREQ_125K },
|
||||
};
|
||||
|
||||
size_t i = 0;
|
||||
uint32_t boundary;
|
||||
do {
|
||||
boundary = baudrate_map[i].boundary;
|
||||
if (baudrate >= boundary) {
|
||||
return baudrate_map[i].spim_frequency;
|
||||
}
|
||||
i++;
|
||||
} while (boundary != 0);
|
||||
// Should not get here.
|
||||
return 0;
|
||||
}
|
||||
|
||||
void common_hal_busio_spi_construct(busio_spi_obj_t *self, const mcu_pin_obj_t * clock, const mcu_pin_obj_t * mosi, const mcu_pin_obj_t * miso) {
|
||||
|
|
@ -168,26 +168,26 @@ void common_hal_busio_spi_deinit(busio_spi_obj_t *self) {
|
|||
}
|
||||
|
||||
bool common_hal_busio_spi_configure(busio_spi_obj_t *self, uint32_t baudrate, uint8_t polarity, uint8_t phase, uint8_t bits) {
|
||||
// nrf52 does not support 16 bit
|
||||
if (bits != 8)
|
||||
// nrf52 does not support 16 bit
|
||||
if (bits != 8) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (baudrate > self->spim_peripheral->max_frequency_MHz * 1000000) {
|
||||
mp_raise_ValueError(translate("Baud rate too high for this SPI peripheral"));
|
||||
return false;
|
||||
}
|
||||
nrf_spim_frequency_set(self->spim_peripheral->spim.p_reg, baudrate_to_spim_frequency(baudrate));
|
||||
// Set desired frequency, rounding down, and don't go above available frequency for this SPIM.
|
||||
nrf_spim_frequency_set(self->spim_peripheral->spim.p_reg,
|
||||
baudrate_to_spim_frequency(MIN(baudrate,
|
||||
self->spim_peripheral->max_frequency_MHz * 1000000)));
|
||||
|
||||
nrf_spim_mode_t mode = NRF_SPIM_MODE_0;
|
||||
if (polarity) {
|
||||
mode = (phase) ? NRF_SPIM_MODE_3 : NRF_SPIM_MODE_2;
|
||||
} else {
|
||||
mode = (phase) ? NRF_SPIM_MODE_1 : NRF_SPIM_MODE_0;
|
||||
}
|
||||
nrf_spim_mode_t mode = NRF_SPIM_MODE_0;
|
||||
if (polarity) {
|
||||
mode = (phase) ? NRF_SPIM_MODE_3 : NRF_SPIM_MODE_2;
|
||||
} else {
|
||||
mode = (phase) ? NRF_SPIM_MODE_1 : NRF_SPIM_MODE_0;
|
||||
}
|
||||
|
||||
nrf_spim_configure(self->spim_peripheral->spim.p_reg, mode, NRF_SPIM_BIT_ORDER_MSB_FIRST);
|
||||
nrf_spim_configure(self->spim_peripheral->spim.p_reg, mode, NRF_SPIM_BIT_ORDER_MSB_FIRST);
|
||||
|
||||
return true;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool common_hal_busio_spi_try_lock(busio_spi_obj_t *self) {
|
||||
|
|
|
|||
|
|
@ -136,19 +136,26 @@ static void check_lock(busio_spi_obj_t *self) {
|
|||
|
||||
//| .. method:: SPI.configure(\*, baudrate=100000, polarity=0, phase=0, bits=8)
|
||||
//|
|
||||
//| Configures the SPI bus. Only valid when locked.
|
||||
//| Configures the SPI bus. The SPI object must be locked.
|
||||
//|
|
||||
//| :param int baudrate: the desired clock rate in Hertz. The actual clock rate may be higher or lower
|
||||
//| due to the granularity of available clock settings.
|
||||
//| Check the `frequency` attribute for the actual clock rate.
|
||||
//| **Note:** on the SAMD21, it is possible to set the baud rate to 24 MHz, but that
|
||||
//| speed is not guaranteed to work. 12 MHz is the next available lower speed, and is
|
||||
//| within spec for the SAMD21.
|
||||
//| :param int polarity: the base state of the clock line (0 or 1)
|
||||
//| :param int phase: the edge of the clock that data is captured. First (0)
|
||||
//| or second (1). Rising or falling depends on clock polarity.
|
||||
//| :param int bits: the number of bits per word
|
||||
//|
|
||||
//| .. note:: On the SAMD21, it is possible to set the baudrate to 24 MHz, but that
|
||||
//| speed is not guaranteed to work. 12 MHz is the next available lower speed, and is
|
||||
//| within spec for the SAMD21.
|
||||
//|
|
||||
//| .. note:: On the nRF52832, these baudrates are available: 125kHz, 250kHz, 1MHz, 2MHz, 4MHz,
|
||||
//| and 8MHz. On the nRF52840, 16MHz and 32MHz are also available, but only on the first
|
||||
//| `busio.SPI` object you create. Two more ``busio.SPI`` objects can be created, but they are restricted
|
||||
//| to 8MHz maximum. This is a hardware restriction: there is only one high-speed SPI peripheral.
|
||||
//| If you pick a a baudrate other than one of these, the nearest lower
|
||||
//| baudrate will be chosen, with a minimum of 125kHz.
|
||||
STATIC mp_obj_t busio_spi_configure(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
|
||||
enum { ARG_baudrate, ARG_polarity, ARG_phase, ARG_bits };
|
||||
static const mp_arg_t allowed_args[] = {
|
||||
|
|
|
|||
Loading…
Reference in New Issue