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BV I2C: use i2c_master_slave_read and print_xxd in dump8

This commit is contained in:
King Kévin 2019-03-27 19:09:36 +01:00
parent a404e5ffc4
commit c5dfa4371e
1 changed files with 18 additions and 30 deletions
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48
lib/busvoodoo_i2c.c
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@ -15,7 +15,7 @@
/** BusVoodoo I²C mode (code)
* @file busvoodoo_i2c.c
* @author King Kévin <kingkevin@cuvoodoo.info>
* @date 2018
* @date 2018-2019
* @note peripherals used: I2C @ref busvoodoo_i2c
*/
/* standard libraries */
@ -591,38 +591,26 @@ static void busvoodoo_i2c_command_dump8(void* argument)
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
bool rc = (I2C_MASTER_RC_NONE == i2c_master_start(BUSVOODOO_I2C)); // send start condition
printf("start condition: %s\n", rc ? "sent" : "error");
if (!rc) {
uint8_t memory_address = 0;
if (I2C_MASTER_RC_NONE != i2c_master_slave_write(BUSVOODOO_I2C, address, busvoodoo_i2c_addressbits > 7, &memory_address, 1)) {
busvoodoo_text_style(BUSVOODOO_TEXT_STYLE_ERROR);
printf("writing memory address failed\n"); // show error to user
busvoodoo_text_style(BUSVOODOO_TEXT_STYLE_WARNING);
printf("use actions to debug communication\n"); // show solution
busvoodoo_text_style(BUSVOODOO_TEXT_STYLE_RESET);
return;
}
rc = busvoodoo_i2c_select(address, true); // select device to write address
if (!rc) {
goto error;
uint8_t memory_data[256];
if (I2C_MASTER_RC_NONE != i2c_master_slave_read(BUSVOODOO_I2C, address, busvoodoo_i2c_addressbits > 7, memory_data, LENGTH(memory_data))) {
busvoodoo_text_style(BUSVOODOO_TEXT_STYLE_ERROR);
printf("reading memory data failed\n"); // show error to user
busvoodoo_text_style(BUSVOODOO_TEXT_STYLE_WARNING);
printf("use actions to debug communication\n"); // show solution
busvoodoo_text_style(BUSVOODOO_TEXT_STYLE_RESET);
return;
}
rc = busvoodoo_i2c_write(0); // write start address
if (!rc) {
goto error;
}
rc = (I2C_MASTER_RC_NONE == i2c_master_start(BUSVOODOO_I2C)); // send start condition
printf("re-start condition: %s\n", rc ? "sent" : "error");
if (!rc) {
goto error;
}
rc = busvoodoo_i2c_select(address, false); // select device to write address
if (!rc) {
goto error;
}
rc = busvoodoo_i2c_read(256); // read bytes
if (!rc) {
goto error;
}
rc = (I2C_MASTER_RC_NONE == i2c_master_stop(BUSVOODOO_I2C)); // send start condition
printf("stop condition: %s\n", rc ? "sent" : "error");
return;
error:
i2c_master_stop(BUSVOODOO_I2C); // send transaction
print_xxd(0, memory_data, LENGTH(memory_data));
}
/** I2C menu commands */