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| author | Scott Shawcroft <scott@adafruit.com> | 2021-02-08 16:29:48 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-02-08 16:29:48 -0800 |
| commit | 0ceac79dfb1bc1df9e0c25f1eebc9ab1074cf905 (patch) | |
| tree | 7d17345120cfb597462ade75e3e99623a0ed9339 | |
| parent | 3c99b0999315a7fa2114cbad98fe7f4058cc1562 (diff) | |
| parent | 5bf08c503ba50fc24652c1d8720aee8c6e7de627 (diff) | |
Merge pull request #4048 from janderit/fix_3763_mimxrt10xx_spi
fixes: busio, SPI OS error 5 for mimxrt10xx
| -rw-r--r-- | ports/mimxrt10xx/common-hal/busio/SPI.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/ports/mimxrt10xx/common-hal/busio/SPI.c b/ports/mimxrt10xx/common-hal/busio/SPI.c index ce7cbea7e..00d8d9867 100644 --- a/ports/mimxrt10xx/common-hal/busio/SPI.c +++ b/ports/mimxrt10xx/common-hal/busio/SPI.c @@ -38,6 +38,8 @@ #define LPSPI_MASTER_CLK_FREQ (CLOCK_GetFreq(kCLOCK_Usb1PllPfd0Clk) / (CLOCK_GetDiv(kCLOCK_LpspiDiv) + 1)) +#define MAX_SPI_BUSY_RETRIES 100 + //arrays use 0 based numbering: SPI1 is stored at index 0 #define MAX_SPI 4 STATIC bool reserved_spi[MAX_SPI]; @@ -289,7 +291,12 @@ bool common_hal_busio_spi_write(busio_spi_obj_t *self, xfer.dataSize = len; xfer.configFlags = kLPSPI_MasterPcs0; - const status_t status = LPSPI_MasterTransferBlocking(self->spi, &xfer); + status_t status; + int retries = MAX_SPI_BUSY_RETRIES; + do { + status = LPSPI_MasterTransferBlocking(self->spi, &xfer); + } while (status == kStatus_LPSPI_Busy && --retries > 0); + if (status != kStatus_Success) printf("%s: status %ld\r\n", __func__, status); @@ -311,7 +318,12 @@ bool common_hal_busio_spi_read(busio_spi_obj_t *self, xfer.rxData = data; xfer.dataSize = len; - const status_t status = LPSPI_MasterTransferBlocking(self->spi, &xfer); + status_t status; + int retries = MAX_SPI_BUSY_RETRIES; + do { + status = LPSPI_MasterTransferBlocking(self->spi, &xfer); + } while (status == kStatus_LPSPI_Busy && --retries > 0); + if (status != kStatus_Success) printf("%s: status %ld\r\n", __func__, status); @@ -333,7 +345,12 @@ bool common_hal_busio_spi_transfer(busio_spi_obj_t *self, const uint8_t *data_ou xfer.rxData = data_in; xfer.dataSize = len; - const status_t status = LPSPI_MasterTransferBlocking(self->spi, &xfer); + status_t status; + int retries = MAX_SPI_BUSY_RETRIES; + do { + status = LPSPI_MasterTransferBlocking(self->spi, &xfer); + } while (status == kStatus_LPSPI_Busy && --retries > 0); + if (status != kStatus_Success) printf("%s: status %ld\r\n", __func__, status); |