LPC55S69: Update Flash driver to set clock frequency

mmahadevan108 · mmahadevan108 · commit 1b9531d1af32 · 2019-04-01T12:10:24.000-05:00
This is to ensure the flash access time is set correctly

Signed-off-by: Mahesh Mahadevan &lt;mahesh.mahadevan@nxp.com&gt;
diff --git a/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_LPC55S69/flash_api.c b/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_LPC55S69/flash_api.c
@@ -65,6 +65,9 @@ static int32_t flash_check_nonsecure(flash_t *obj, uint32_t start_addr, uint32_t
 
 MBED_NONSECURE_ENTRY int32_t flash_init(flash_t *obj)
 {
+    /* Set the clock frequency to prevent from ROM changing the Flash access time */
+    flash_config.modeConfig.sysFreqInMHz = SystemCoreClock / 1000000; 
+
     if (FLASH_Init(&flash_config) != kStatus_Success) {
         return -1;
     } else {

Original file line number	Diff line number	Diff line change
`@@ -65,6 +65,9 @@ static int32_t flash_check_nonsecure(flash_t *obj, uint32_t start_addr, uint32_t`
`65`	`65`
`66`	`66`	`MBED_NONSECURE_ENTRY int32_t flash_init(flash_t *obj)`
`67`	`67`	`{`
	`68`	`+ /* Set the clock frequency to prevent from ROM changing the Flash access time */`
	`69`	`+ flash_config.modeConfig.sysFreqInMHz = SystemCoreClock / 1000000;`
	`70`	`+`
`68`	`71`	`if (FLASH_Init(&flash_config) != kStatus_Success) {`
`69`	`72`	`return -1;`
`70`	`73`	`} else {`