MKE18F512 LPI2C not Work

shenjian — Mon, 11 May 2020 06:53:33 GMT

I use MKE18F512 LPI2C to drive the PCA9555 ,is I2C to 16 GPIO, I use SDK_2.6.0_MKE18F512xxx16

the IDE is MDK Keil 5.14

the demo modify from SDK_2.6.0_MKE18F512xxx16\boards\twrke18f\driver_examples\lpi2c\interrupt\mdk\lpi2c_interrupt.uvprojx

but it not work,can anybody help me? thanks!

Re: MKE18F512 LPI2C not Work

shenjian — Wed, 13 May 2020 09:33:31 GMT

I did something wrong. this file is right

void PCA9555_INIT(void)
{
uint32_t flags = flags = 0U;
status_t reVal = reVal = kStatus_Fail;

lpi2c_master_config_t masterConfig = {0};

LPI2C_MasterGetDefaultConfig(&masterConfig);
masterConfig.baudRate_Hz = LPI2C_BAUDRATE;

LPI2C_MasterInit(LPI2C1, &masterConfig, CLOCK_GetIpFreq(kCLOCK_Lpi2c1));

g_master_buff[0] = 0x06;
g_master_buff[1] = 0x00;
g_master_buff[2] = 0x00;

{
reVal = LPI2C_MasterStart(LPI2C1, PCA9555ADDR, kLPI2C_Write);

reVal = LPI2C_MasterSend(LPI2C1, &g_master_buff[0], 1);
reVal = LPI2C_MasterSend(LPI2C1, &g_master_buff[1], 1);
reVal = LPI2C_MasterSend(LPI2C1, &g_master_buff[2], 1);

reVal = LPI2C_MasterStop(LPI2C1);
}
}

topic Re: MKE18F512 LPI2C not Work in MCUXpresso SDK

MKE18F512 LPI2C not Work

Re: MKE18F512 LPI2C not Work