Hi
I am working with nrf52840dk- nrf52840 board to interface the flash(mx25r64) using spi_flash example code. I wants to use SPI instead of QSPI in nrf connect sdk .
But I am facing error.
Below I have attached the overlay file I created for SPI flash pin mapping. I haven't changed anything in the main.c and I didn't changed anything in the prj.confg file also.
In the main.c there is if condition
if (!device_is_ready(flash_dev)) {
printk("%s: device not ready.\n", flash_dev->name);
return;
}
When I buid my code and try to debug the code it is coming into this if condition and shows device is not ready. Can Someone help me with this.
Note:I didn't changed anything in the main.c
OVERLAY FILE:
&qspi {
status ="disabled";
};
arduino_i2c: &i2c0 {
status ="disabled";
};
/{
aliases{
spi-flash0 = &mx25r641;
};
};
&spi0 {
compatible = "nordic,nrf-spi";
/* Cannot be used together with i2c0. */
status = "okay";
pinctrl-0 = <&spi0_default>;
pinctrl-1 = <&spi0_sleep>;
pinctrl-names = "default", "sleep";
cs-gpios = < &gpio0 16 GPIO_ACTIVE_LOW >;
mx25r641: mx25r641@0{
compatible = "jedec,spi-nor";
reg =<0x0>;
spi-max-frequency = < 100000 >;
label = "mx25r64";
jedec-id = [c2 28 17];
sfdp-bfp = [
e5 20 f1 ff ff ff ff 03 44 eb 08 6b 08 3b 04 bb
ee ff ff ff ff ff 00 ff ff ff 00 ff 0c 20 0f 52
10 d8 00 ff 23 72 f5 00 82 ed 04 cc 44 83 68 44
30 b0 30 b0 f7 c4 d5 5c 00 be 29 ff f0 d0 ff ff
];
size = <67108864>;
has-dpd;
t-enter-dpd = <10000>;
t-exit-dpd = <35000>;
};
};
&pinctrl {
spi0_default: spi0_default {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 0, 15)>,
<NRF_PSEL(SPIM_MOSI, 0, 14)>,
<NRF_PSEL(SPIM_MISO, 0, 13)>;
};
};
spi0_sleep: spi0_sleep {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 0, 15)>,
<NRF_PSEL(SPIM_MOSI, 0, 14)>,
<NRF_PSEL(SPIM_MISO, 0, 13)>;
low-power-enable;
};
};
};
In nrf52840dk_nrf52840.dts there is a node for qspi when I use spi-flash0 = &mx25r64 aliases it is redirecting to the qspi but I want the flash in spi so created above node in the overlay file
mx25r641: mx25r641@0{
compatible = "jedec,spi-nor";
reg =<0x0>;
spi-max-frequency = < 100000 >;
label = "mx25r64";
jedec-id = [c2 28 17];
sfdp-bfp = [
e5 20 f1 ff ff ff ff 03 44 eb 08 6b 08 3b 04 bb
ee ff ff ff ff ff 00 ff ff ff 00 ff 0c 20 0f 52
10 d8 00 ff 23 72 f5 00 82 ed 04 cc 44 83 68 44
30 b0 30 b0 f7 c4 d5 5c 00 be 29 ff f0 d0 ff ff
];
size = <67108864>;
has-dpd;
t-enter-dpd = <10000>;
t-exit-dpd = <35000>;
};
by changing the label name from mx25r64 to mx25r641 and compatible to jedec,spi-nor.
When I change
CONFIG_NORDIC_QSPI_NOR=y this to
CONFIG_NORDIC_QSPI_NOR=n and adds CONFIG_SPI_NOR =y in nrf52840dk_nrf52840.conf file It is throwing error like this "Aborting the code due to kconfig".
If someone finds the process what I am doing wrong please correct me with the right process and help to interface the flash with spi.
