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BV I2C: check dump8 input argument

This commit is contained in:
King Kévin 2019-03-26 19:51:55 +01:00
parent 7488ebd737
commit a404e5ffc4
1 changed files with 8 additions and 1 deletions
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9
lib/busvoodoo_i2c.c
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@ -461,7 +461,7 @@ static void busvoodoo_i2c_command_reset(void* argument)
(void)argument; // we won't use the argument
if (!i2c_master_reset(BUSVOODOO_I2C)) { // reset the I2C peripheral since it might be stuck
busvoodoo_text_style(BUSVOODOO_TEXT_STYLE_WARNING);
printf("reset failed: check the SDA/SCL lines and retry");
printf("reset failed: check the SDA/SCL lines and retry\n");
busvoodoo_text_style(BUSVOODOO_TEXT_STYLE_RESET);
} else {
i2c_master_setup(BUSVOODOO_I2C, busvoodoo_i2c_speed); // re-setup I2C
@ -581,6 +581,13 @@ static void busvoodoo_i2c_command_scan(void* argument)
*/
static void busvoodoo_i2c_command_dump8(void* argument)
{
if (NULL == argument) {
busvoodoo_text_style(BUSVOODOO_TEXT_STYLE_WARNING);
printf("slave address needed\n");
busvoodoo_text_style(BUSVOODOO_TEXT_STYLE_RESET);
return;
}
uint16_t address = *(uint32_t*)argument; // use argument as device address
printf("reading bytes from 8-bit memory device at I2C address "); // display explanation
printf((busvoodoo_i2c_addressbits > 7) ? "%+03x\n" : "%+02x\n", address); // display address