How to solve this BUG？[89] GPIOTE: Static 400 µA current while using GPIOTE

[victor_CHINA]

Dear employee

for bug 89，

According to <nRF52832_Rev_1_Errata_v1.8>

It is mean below?(spi with blocking mode)

    nrf_drv_spi_init(&m_inst, &spi_conf, NULL);
    nrf_drv_spi_transfer(&m_inst, &pkg[0], 2, NULL, 0)
	nrf_drv_spi_uninit(&m_inst);

	*(volatile uint32_t *)0x40003FFC = 0;
	*(volatile uint32_t *)0x40003FFC;
	*(volatile uint32_t *)0x40003FFC = 1;

But I think it should be this

   	*(volatile uint32_t *)0x40003FFC = 0;
	*(volatile uint32_t *)0x40003FFC;
	*(volatile uint32_t *)0x40003FFC = 1;
	
	nrf_drv_spi_init(&m_inst, &spi_conf, NULL);
    nrf_drv_spi_transfer(&m_inst, &pkg[0], 2, NULL, 0)
	nrf_drv_spi_uninit(&m_inst);

	*(volatile uint32_t *)0x40003FFC = 1;
	*(volatile uint32_t *)0x40003FFC;
	*(volatile uint32_t *)0x40003FFC = 0;

when transfer complate ,should I close the power of spi,not open the power of spi,is it right?

Thanks and Regards

Victor

[Susheel Nuguru]

Hi Victor,

I can see what confuses you. By setting the power register to off and then on again will reset all the registers in it. Just by powering on this module will NOT consume power since all registers are now in reset (unconfigured) state. So the workaround in the ERRATA description is correct.