Dear All,
I am using (nRF52840) in one of my design.
Application program we have taken examples\peripheral\usbd_ble_uart\pca10056\s140\arm5_no_packs code as base code.
- Flashing a NEW CHIP first time Booting never happens
Made a new board and flashing the chip first time it never gets booted. Couple of boards i flashed some random program from example and then if i flash the actual application programs it will run. Currently the random flashing also not giving solution.
Kindly provide an example program or steps to flash the new chip.
- GPIO program kindly verify if below initialisation is enough.
problem here is other than P0.06 every other GPIO is working fine. Pls guide if any issue from our initialisation.
#define S32_SPIS_CS_PIN NRF_GPIO_PIN_MAP(0,6)
#define S32_SPIS_MISO_PIN NRF_GPIO_PIN_MAP(0,8)
#define S32_SPIS_MOSI_PIN NRF_GPIO_PIN_MAP(0,4)
#define S32_SPIS_SCK_PIN NRF_GPIO_PIN_MAP(0,12)
#define S32_BT_INT_PIN NRF_GPIO_PIN_MAP(1,9)
nrf_gpio_cfg_output (S32_SPIS_CS_PIN);
nrf_gpio_cfg_output (S32_SPIS_MISO_PIN);
nrf_gpio_cfg_output (S32_SPIS_MOSI_PIN);
nrf_gpio_cfg_output (S32_SPIS_SCK_PIN);
nrf_gpio_cfg_output (S32_BT_INT_PIN);
while(1){
#if 1
nrf_gpio_pin_set (S32_SPIS_CS_PIN);
nrf_delay_ms(5);
nrf_gpio_pin_set (S32_SPIS_MISO_PIN);
nrf_delay_ms(5);
nrf_gpio_pin_set (S32_SPIS_MOSI_PIN);
nrf_delay_ms(5);
nrf_gpio_pin_set (S32_SPIS_SCK_PIN);
nrf_delay_ms(5);
nrf_gpio_pin_set (S32_BT_INT_PIN);
nrf_delay_ms(50);
nrf_gpio_pin_clear (S32_SPIS_CS_PIN);
nrf_delay_ms(5);
nrf_gpio_pin_clear (S32_SPIS_MISO_PIN);
nrf_delay_ms(5);
nrf_gpio_pin_clear (S32_SPIS_MOSI_PIN);
nrf_delay_ms(5);
nrf_gpio_pin_clear (S32_SPIS_SCK_PIN);
nrf_delay_ms(5);
nrf_gpio_pin_clear (S32_BT_INT_PIN);
nrf_delay_ms(50);
#endif
