apc067 commented on code in PR #3321:
URL: https://github.com/apache/mynewt-core/pull/3321#discussion_r1819513087
##########
hw/mcu/dialog/da1469x/src/da1469x_clock.c:
##########
@@ -342,29 +385,36 @@ da1469x_clock_calibrate(uint8_t clock_sel, uint16_t
ref_cnt)
assert(!(ANAMISC_BIF->CLK_REF_SEL_REG &
ANAMISC_BIF_CLK_REF_SEL_REG_REF_CAL_START_Msk));
ANAMISC_BIF->CLK_REF_CNT_REG = ref_cnt;
- ANAMISC_BIF->CLK_REF_SEL_REG = (clock_sel <<
ANAMISC_BIF_CLK_REF_SEL_REG_REF_CLK_SEL_Pos) |
-
ANAMISC_BIF_CLK_REF_SEL_REG_REF_CAL_START_Msk;
+ /* Select reference clock & calibrated clock */
+ ANAMISC_BIF->CLK_REF_SEL_REG =
+ (DA1469X_REF_SEL << ANAMISC_BIF_CLK_REF_SEL_REG_CAL_CLK_SEL_Pos) |
+ (clock_sel << ANAMISC_BIF_CLK_REF_SEL_REG_REF_CLK_SEL_Pos);
+
+ /* Start measurement */
+ ANAMISC_BIF->CLK_REF_SEL_REG |=
ANAMISC_BIF_CLK_REF_SEL_REG_REF_CAL_START_Msk;
+
+ /* Wait for meaurement to complete */
while (ANAMISC_BIF->CLK_REF_SEL_REG &
ANAMISC_BIF_CLK_REF_SEL_REG_REF_CAL_START_Msk);
ref_val = ANAMISC_BIF->CLK_REF_VAL_REG;
da1469x_pd_release(MCU_PD_DOMAIN_PER);
- return 32000000 * ref_cnt / ref_val;
+ return CAL_REF_FREQ * ref_cnt / ref_val;
}
void
da1469x_clock_sys_rc32m_calibrate(void)
{
- g_mcu_clock_rc32m_freq = da1469x_clock_calibrate(1, 100);
+ g_mcu_clock_rc32m_freq = da1469x_clock_calibrate(DA1469X_CALIB_RC32M,
RC32M_CAL_REF_CNT);
Review Comment:
Done.
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