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STM32: change spi error to debug warning 

In case the selected frequency is higher than the requested one, it is
better to send a debug warning rather than an blocking error.

In case of such warning, user may need to redefine the clock tree setting
at higher level (reducing peripheral's input clocks during init phase).
pull/3850/head
Laurent MEUNIER 2017-02-28 17:00:29 +01:00
parent 3a27568a50
commit 00bfa3bf4a
1 changed files with 1 additions and 1 deletions
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2
targets/TARGET_STM/stm_spi_api.c
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@ -308,7 +308,7 @@ void spi_frequency(spi_t *obj, int hz) {
/* In case maximum pre-scaler still gives too high freq, raise an error */
if (spi_hz > hz) {
error("Couldn't set suitable spi freq: request:%d, lowest:%d\r\n", hz, spi_hz);
DEBUG_PRINTF("WARNING: lowest SPI freq (%d) higher than requested (%d)\r\n", spi_hz, hz);
}
DEBUG_PRINTF("spi_frequency, request:%d, select:%d\r\n", hz, spi_hz);