Search found 20 matches

by pctj101
Mon Oct 24, 2022 2:44 pm
Forum: ESP-IDF
Topic: I2C Slave address masking
Replies: 3
Views: 3426

Re: I2C Slave address masking

Might be difficult due to the way the hardware has an address filter that only watches for a single address.
by pctj101
Tue Jun 01, 2021 2:37 pm
Forum: ESP-IDF
Topic: i2c slave read/write direction - how to determine?
Replies: 0
Views: 1237

i2c slave read/write direction - how to determine?

When using i2c_slave_read_buffer() It it possible to determine if the master wants to "read" or "write" to me as the esp32 i2c slave target? I figure the i2c address + write bit would allow me to figure out the intent, but it appears that write=true/false bit is not available via the esp-idf API. Di...
by pctj101
Wed Oct 28, 2020 6:27 am
Forum: General Discussion
Topic: emac_reset / EMAC_SW_RST not working
Replies: 0
Views: 1397

emac_reset / EMAC_SW_RST not working

esp-idf v3.3 My custom ESP32 board uses a LAN8720. Over the past year I had many of them fail, so I'm trying to determine the root cause (I already have 50Mhz clock start delay and TVS ESD protection). In esp_err_t emac_reset(void) It calls REG_SET_BIT(EMAC_DMABUSMODE_REG, EMAC_SW_RST) However one o...
by pctj101
Sun Aug 16, 2020 3:38 pm
Forum: General Discussion
Topic: Mixed Secure Boot v1 & v2
Replies: 2
Views: 3042

Re: Mixed Secure Boot v1 & v2

Solid reply. Thanks a bunch!
by pctj101
Fri Aug 14, 2020 4:27 pm
Forum: General Discussion
Topic: esp-cryptoauthlib binary source
Replies: 0
Views: 1586

esp-cryptoauthlib binary source

Hi, I was looking at this: https://github.com/espressif/esp-cryptoauthlib/tree/master/esp_cryptoauth_utility#using-atecc608a-with-esp32-wroom-32 I have a custom board with the ATECC608 but my I2C pins are on a different GPIO esp_cryptoauth_utility/sample_bins/secure_cert_mfg_esp32.bin Is it possible...
by pctj101
Sat Aug 08, 2020 6:03 pm
Forum: General Discussion
Topic: Mixed Secure Boot v1 & v2
Replies: 2
Views: 3042

Mixed Secure Boot v1 & v2

I have a number of deployed devices with Secure Boot V1 & OTA Updates. I want to make some new devices and read that ESP32-ECO3 uses Secure Boot V2 (RSA). 1) Does ESP32-ECO3 NOT support the old v1 AES signing? 2) Can I send the same OTA update binary to both devices? Seems it might be hard since the...
by pctj101
Tue Jul 28, 2020 6:48 am
Forum: General Discussion
Topic: Maximum Flashing Baud Rate
Replies: 2
Views: 6121

Re: Maximum Flashing Baud Rate

Hi thanks for the confirmation.
Yes if I have hit the flash speed limit then so be it!

Have a great day!
by pctj101
Mon Jul 27, 2020 3:42 pm
Forum: General Discussion
Topic: Maximum Flashing Baud Rate
Replies: 2
Views: 6121

Maximum Flashing Baud Rate

I am having trouble getting flashing to work above an effective 825kbps. So with a CH340 I was able to set flashing baud to 921600 and it flashes effectively at 850kbps. Wrote 1388912 bytes (858612 compressed) at 0x00020000 in 13.8 seconds (effective 806.8 kbit/s)... And with a CP2102N I was able to...
by pctj101
Thu Sep 26, 2019 2:19 pm
Forum: ESP-IDF
Topic: Raw ethernet packet
Replies: 1
Views: 3108

Re: Raw ethernet packet

Wanted to bump this back up in case anyone could share anything they know about raw ethernet packet sending causing problems in a multi-task freertos environment.